// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// SPDX-License-Identifier: MIT
pragma solidity >=0.8.19;

// Common.sol
//
// Common mathematical functions needed by both SD59x18 and UD60x18. Note that these global functions do not
// always operate with SD59x18 and UD60x18 numbers.

/*//////////////////////////////////////////////////////////////////////////
                                CUSTOM ERRORS
//////////////////////////////////////////////////////////////////////////*/

/// @notice Thrown when the resultant value in {mulDiv} overflows uint256.
error PRBMath_MulDiv_Overflow(uint256 x, uint256 y, uint256 denominator);

/// @notice Thrown when the resultant value in {mulDiv18} overflows uint256.
error PRBMath_MulDiv18_Overflow(uint256 x, uint256 y);

/// @notice Thrown when one of the inputs passed to {mulDivSigned} is `type(int256).min`.
error PRBMath_MulDivSigned_InputTooSmall();

/// @notice Thrown when the resultant value in {mulDivSigned} overflows int256.
error PRBMath_MulDivSigned_Overflow(int256 x, int256 y);

/*//////////////////////////////////////////////////////////////////////////
                                    CONSTANTS
//////////////////////////////////////////////////////////////////////////*/

/// @dev The maximum value a uint128 number can have.
uint128 constant MAX_UINT128 = type(uint128).max;

/// @dev The maximum value a uint40 number can have.
uint40 constant MAX_UINT40 = type(uint40).max;

/// @dev The unit number, which the decimal precision of the fixed-point types.
uint256 constant UNIT = 1e18;

/// @dev The unit number inverted mod 2^256.
uint256 constant UNIT_INVERSE = 78156646155174841979727994598816262306175212592076161876661_508869554232690281;

/// @dev The the largest power of two that divides the decimal value of `UNIT`. The logarithm of this value is the least significant
/// bit in the binary representation of `UNIT`.
uint256 constant UNIT_LPOTD = 262144;

/*//////////////////////////////////////////////////////////////////////////
                                    FUNCTIONS
//////////////////////////////////////////////////////////////////////////*/

/// @notice Calculates the binary exponent of x using the binary fraction method.
/// @dev Has to use 192.64-bit fixed-point numbers. See https://ethereum.stackexchange.com/a/96594/24693.
/// @param x The exponent as an unsigned 192.64-bit fixed-point number.
/// @return result The result as an unsigned 60.18-decimal fixed-point number.
/// @custom:smtchecker abstract-function-nondet
function exp2(uint256 x) pure returns (uint256 result) {
    unchecked {
        // Start from 0.5 in the 192.64-bit fixed-point format.
        result = 0x800000000000000000000000000000000000000000000000;

        // The following logic multiplies the result by $\sqrt{2^{-i}}$ when the bit at position i is 1. Key points:
        //
        // 1. Intermediate results will not overflow, as the starting point is 2^191 and all magic factors are under 2^65.
        // 2. The rationale for organizing the if statements into groups of 8 is gas savings. If the result of performing
        // a bitwise AND operation between x and any value in the array [0x80; 0x40; 0x20; 0x10; 0x08; 0x04; 0x02; 0x01] is 1,
        // we know that `x & 0xFF` is also 1.
        if (x & 0xFF00000000000000 > 0) {
            if (x & 0x8000000000000000 > 0) {
                result = (result * 0x16A09E667F3BCC909) >> 64;
            }
            if (x & 0x4000000000000000 > 0) {
                result = (result * 0x1306FE0A31B7152DF) >> 64;
            }
            if (x & 0x2000000000000000 > 0) {
                result = (result * 0x1172B83C7D517ADCE) >> 64;
            }
            if (x & 0x1000000000000000 > 0) {
                result = (result * 0x10B5586CF9890F62A) >> 64;
            }
            if (x & 0x800000000000000 > 0) {
                result = (result * 0x1059B0D31585743AE) >> 64;
            }
            if (x & 0x400000000000000 > 0) {
                result = (result * 0x102C9A3E778060EE7) >> 64;
            }
            if (x & 0x200000000000000 > 0) {
                result = (result * 0x10163DA9FB33356D8) >> 64;
            }
            if (x & 0x100000000000000 > 0) {
                result = (result * 0x100B1AFA5ABCBED61) >> 64;
            }
        }

        if (x & 0xFF000000000000 > 0) {
            if (x & 0x80000000000000 > 0) {
                result = (result * 0x10058C86DA1C09EA2) >> 64;
            }
            if (x & 0x40000000000000 > 0) {
                result = (result * 0x1002C605E2E8CEC50) >> 64;
            }
            if (x & 0x20000000000000 > 0) {
                result = (result * 0x100162F3904051FA1) >> 64;
            }
            if (x & 0x10000000000000 > 0) {
                result = (result * 0x1000B175EFFDC76BA) >> 64;
            }
            if (x & 0x8000000000000 > 0) {
                result = (result * 0x100058BA01FB9F96D) >> 64;
            }
            if (x & 0x4000000000000 > 0) {
                result = (result * 0x10002C5CC37DA9492) >> 64;
            }
            if (x & 0x2000000000000 > 0) {
                result = (result * 0x1000162E525EE0547) >> 64;
            }
            if (x & 0x1000000000000 > 0) {
                result = (result * 0x10000B17255775C04) >> 64;
            }
        }

        if (x & 0xFF0000000000 > 0) {
            if (x & 0x800000000000 > 0) {
                result = (result * 0x1000058B91B5BC9AE) >> 64;
            }
            if (x & 0x400000000000 > 0) {
                result = (result * 0x100002C5C89D5EC6D) >> 64;
            }
            if (x & 0x200000000000 > 0) {
                result = (result * 0x10000162E43F4F831) >> 64;
            }
            if (x & 0x100000000000 > 0) {
                result = (result * 0x100000B1721BCFC9A) >> 64;
            }
            if (x & 0x80000000000 > 0) {
                result = (result * 0x10000058B90CF1E6E) >> 64;
            }
            if (x & 0x40000000000 > 0) {
                result = (result * 0x1000002C5C863B73F) >> 64;
            }
            if (x & 0x20000000000 > 0) {
                result = (result * 0x100000162E430E5A2) >> 64;
            }
            if (x & 0x10000000000 > 0) {
                result = (result * 0x1000000B172183551) >> 64;
            }
        }

        if (x & 0xFF00000000 > 0) {
            if (x & 0x8000000000 > 0) {
                result = (result * 0x100000058B90C0B49) >> 64;
            }
            if (x & 0x4000000000 > 0) {
                result = (result * 0x10000002C5C8601CC) >> 64;
            }
            if (x & 0x2000000000 > 0) {
                result = (result * 0x1000000162E42FFF0) >> 64;
            }
            if (x & 0x1000000000 > 0) {
                result = (result * 0x10000000B17217FBB) >> 64;
            }
            if (x & 0x800000000 > 0) {
                result = (result * 0x1000000058B90BFCE) >> 64;
            }
            if (x & 0x400000000 > 0) {
                result = (result * 0x100000002C5C85FE3) >> 64;
            }
            if (x & 0x200000000 > 0) {
                result = (result * 0x10000000162E42FF1) >> 64;
            }
            if (x & 0x100000000 > 0) {
                result = (result * 0x100000000B17217F8) >> 64;
            }
        }

        if (x & 0xFF000000 > 0) {
            if (x & 0x80000000 > 0) {
                result = (result * 0x10000000058B90BFC) >> 64;
            }
            if (x & 0x40000000 > 0) {
                result = (result * 0x1000000002C5C85FE) >> 64;
            }
            if (x & 0x20000000 > 0) {
                result = (result * 0x100000000162E42FF) >> 64;
            }
            if (x & 0x10000000 > 0) {
                result = (result * 0x1000000000B17217F) >> 64;
            }
            if (x & 0x8000000 > 0) {
                result = (result * 0x100000000058B90C0) >> 64;
            }
            if (x & 0x4000000 > 0) {
                result = (result * 0x10000000002C5C860) >> 64;
            }
            if (x & 0x2000000 > 0) {
                result = (result * 0x1000000000162E430) >> 64;
            }
            if (x & 0x1000000 > 0) {
                result = (result * 0x10000000000B17218) >> 64;
            }
        }

        if (x & 0xFF0000 > 0) {
            if (x & 0x800000 > 0) {
                result = (result * 0x1000000000058B90C) >> 64;
            }
            if (x & 0x400000 > 0) {
                result = (result * 0x100000000002C5C86) >> 64;
            }
            if (x & 0x200000 > 0) {
                result = (result * 0x10000000000162E43) >> 64;
            }
            if (x & 0x100000 > 0) {
                result = (result * 0x100000000000B1721) >> 64;
            }
            if (x & 0x80000 > 0) {
                result = (result * 0x10000000000058B91) >> 64;
            }
            if (x & 0x40000 > 0) {
                result = (result * 0x1000000000002C5C8) >> 64;
            }
            if (x & 0x20000 > 0) {
                result = (result * 0x100000000000162E4) >> 64;
            }
            if (x & 0x10000 > 0) {
                result = (result * 0x1000000000000B172) >> 64;
            }
        }

        if (x & 0xFF00 > 0) {
            if (x & 0x8000 > 0) {
                result = (result * 0x100000000000058B9) >> 64;
            }
            if (x & 0x4000 > 0) {
                result = (result * 0x10000000000002C5D) >> 64;
            }
            if (x & 0x2000 > 0) {
                result = (result * 0x1000000000000162E) >> 64;
            }
            if (x & 0x1000 > 0) {
                result = (result * 0x10000000000000B17) >> 64;
            }
            if (x & 0x800 > 0) {
                result = (result * 0x1000000000000058C) >> 64;
            }
            if (x & 0x400 > 0) {
                result = (result * 0x100000000000002C6) >> 64;
            }
            if (x & 0x200 > 0) {
                result = (result * 0x10000000000000163) >> 64;
            }
            if (x & 0x100 > 0) {
                result = (result * 0x100000000000000B1) >> 64;
            }
        }

        if (x & 0xFF > 0) {
            if (x & 0x80 > 0) {
                result = (result * 0x10000000000000059) >> 64;
            }
            if (x & 0x40 > 0) {
                result = (result * 0x1000000000000002C) >> 64;
            }
            if (x & 0x20 > 0) {
                result = (result * 0x10000000000000016) >> 64;
            }
            if (x & 0x10 > 0) {
                result = (result * 0x1000000000000000B) >> 64;
            }
            if (x & 0x8 > 0) {
                result = (result * 0x10000000000000006) >> 64;
            }
            if (x & 0x4 > 0) {
                result = (result * 0x10000000000000003) >> 64;
            }
            if (x & 0x2 > 0) {
                result = (result * 0x10000000000000001) >> 64;
            }
            if (x & 0x1 > 0) {
                result = (result * 0x10000000000000001) >> 64;
            }
        }

        // In the code snippet below, two operations are executed simultaneously:
        //
        // 1. The result is multiplied by $(2^n + 1)$, where $2^n$ represents the integer part, and the additional 1
        // accounts for the initial guess of 0.5. This is achieved by subtracting from 191 instead of 192.
        // 2. The result is then converted to an unsigned 60.18-decimal fixed-point format.
        //
        // The underlying logic is based on the relationship $2^{191-ip} = 2^{ip} / 2^{191}$, where $ip$ denotes the,
        // integer part, $2^n$.
        result *= UNIT;
        result >>= (191 - (x >> 64));
    }
}

/// @notice Finds the zero-based index of the first 1 in the binary representation of x.
///
/// @dev See the note on "msb" in this Wikipedia article: https://en.wikipedia.org/wiki/Find_first_set
///
/// Each step in this implementation is equivalent to this high-level code:
///
/// ```solidity
/// if (x >= 2 ** 128) {
///     x >>= 128;
///     result += 128;
/// }
/// ```
///
/// Where 128 is replaced with each respective power of two factor. See the full high-level implementation here:
/// https://gist.github.com/PaulRBerg/f932f8693f2733e30c4d479e8e980948
///
/// The Yul instructions used below are:
///
/// - "gt" is "greater than"
/// - "or" is the OR bitwise operator
/// - "shl" is "shift left"
/// - "shr" is "shift right"
///
/// @param x The uint256 number for which to find the index of the most significant bit.
/// @return result The index of the most significant bit as a uint256.
/// @custom:smtchecker abstract-function-nondet
function msb(uint256 x) pure returns (uint256 result) {
    // 2^128
    assembly ("memory-safe") {
        let factor := shl(7, gt(x, 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^64
    assembly ("memory-safe") {
        let factor := shl(6, gt(x, 0xFFFFFFFFFFFFFFFF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^32
    assembly ("memory-safe") {
        let factor := shl(5, gt(x, 0xFFFFFFFF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^16
    assembly ("memory-safe") {
        let factor := shl(4, gt(x, 0xFFFF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^8
    assembly ("memory-safe") {
        let factor := shl(3, gt(x, 0xFF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^4
    assembly ("memory-safe") {
        let factor := shl(2, gt(x, 0xF))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^2
    assembly ("memory-safe") {
        let factor := shl(1, gt(x, 0x3))
        x := shr(factor, x)
        result := or(result, factor)
    }
    // 2^1
    // No need to shift x any more.
    assembly ("memory-safe") {
        let factor := gt(x, 0x1)
        result := or(result, factor)
    }
}

/// @notice Calculates x*y÷denominator with 512-bit precision.
///
/// @dev Credits to Remco Bloemen under MIT license https://xn--2-umb.com/21/muldiv.
///
/// Notes:
/// - The result is rounded toward zero.
///
/// Requirements:
/// - The denominator must not be zero.
/// - The result must fit in uint256.
///
/// @param x The multiplicand as a uint256.
/// @param y The multiplier as a uint256.
/// @param denominator The divisor as a uint256.
/// @return result The result as a uint256.
/// @custom:smtchecker abstract-function-nondet
function mulDiv(uint256 x, uint256 y, uint256 denominator) pure returns (uint256 result) {
    // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
    // use the Chinese Remainder Theorem to reconstruct the 512-bit result. The result is stored in two 256
    // variables such that product = prod1 * 2^256 + prod0.
    uint256 prod0; // Least significant 256 bits of the product
    uint256 prod1; // Most significant 256 bits of the product
    assembly ("memory-safe") {
        let mm := mulmod(x, y, not(0))
        prod0 := mul(x, y)
        prod1 := sub(sub(mm, prod0), lt(mm, prod0))
    }

    // Handle non-overflow cases, 256 by 256 division.
    if (prod1 == 0) {
        unchecked {
            return prod0 / denominator;
        }
    }

    // Make sure the result is less than 2^256. Also prevents denominator == 0.
    if (prod1 >= denominator) {
        revert PRBMath_MulDiv_Overflow(x, y, denominator);
    }

    ////////////////////////////////////////////////////////////////////////////
    // 512 by 256 division
    ////////////////////////////////////////////////////////////////////////////

    // Make division exact by subtracting the remainder from [prod1 prod0].
    uint256 remainder;
    assembly ("memory-safe") {
        // Compute remainder using the mulmod Yul instruction.
        remainder := mulmod(x, y, denominator)

        // Subtract 256 bit number from 512-bit number.
        prod1 := sub(prod1, gt(remainder, prod0))
        prod0 := sub(prod0, remainder)
    }

    unchecked {
        // Calculate the largest power of two divisor of the denominator using the unary operator ~. This operation cannot overflow
        // because the denominator cannot be zero at this point in the function execution. The result is always >= 1.
        // For more detail, see https://cs.stackexchange.com/q/138556/92363.
        uint256 lpotdod = denominator & (~denominator + 1);
        uint256 flippedLpotdod;

        assembly ("memory-safe") {
            // Factor powers of two out of denominator.
            denominator := div(denominator, lpotdod)

            // Divide [prod1 prod0] by lpotdod.
            prod0 := div(prod0, lpotdod)

            // Get the flipped value `2^256 / lpotdod`. If the `lpotdod` is zero, the flipped value is one.
            // `sub(0, lpotdod)` produces the two's complement version of `lpotdod`, which is equivalent to flipping all the bits.
            // However, `div` interprets this value as an unsigned value: https://ethereum.stackexchange.com/q/147168/24693
            flippedLpotdod := add(div(sub(0, lpotdod), lpotdod), 1)
        }

        // Shift in bits from prod1 into prod0.
        prod0 |= prod1 * flippedLpotdod;

        // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
        // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
        // four bits. That is, denominator * inv = 1 mod 2^4.
        uint256 inverse = (3 * denominator) ^ 2;

        // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
        // in modular arithmetic, doubling the correct bits in each step.
        inverse *= 2 - denominator * inverse; // inverse mod 2^8
        inverse *= 2 - denominator * inverse; // inverse mod 2^16
        inverse *= 2 - denominator * inverse; // inverse mod 2^32
        inverse *= 2 - denominator * inverse; // inverse mod 2^64
        inverse *= 2 - denominator * inverse; // inverse mod 2^128
        inverse *= 2 - denominator * inverse; // inverse mod 2^256

        // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
        // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
        // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
        // is no longer required.
        result = prod0 * inverse;
    }
}

/// @notice Calculates x*y÷1e18 with 512-bit precision.
///
/// @dev A variant of {mulDiv} with constant folding, i.e. in which the denominator is hard coded to 1e18.
///
/// Notes:
/// - The body is purposely left uncommented; to understand how this works, see the documentation in {mulDiv}.
/// - The result is rounded toward zero.
/// - We take as an axiom that the result cannot be `MAX_UINT256` when x and y solve the following system of equations:
///
/// $$
/// \begin{cases}
///     x * y = MAX\_UINT256 * UNIT \\
///     (x * y) \% UNIT \geq \frac{UNIT}{2}
/// \end{cases}
/// $$
///
/// Requirements:
/// - Refer to the requirements in {mulDiv}.
/// - The result must fit in uint256.
///
/// @param x The multiplicand as an unsigned 60.18-decimal fixed-point number.
/// @param y The multiplier as an unsigned 60.18-decimal fixed-point number.
/// @return result The result as an unsigned 60.18-decimal fixed-point number.
/// @custom:smtchecker abstract-function-nondet
function mulDiv18(uint256 x, uint256 y) pure returns (uint256 result) {
    uint256 prod0;
    uint256 prod1;
    assembly ("memory-safe") {
        let mm := mulmod(x, y, not(0))
        prod0 := mul(x, y)
        prod1 := sub(sub(mm, prod0), lt(mm, prod0))
    }

    if (prod1 == 0) {
        unchecked {
            return prod0 / UNIT;
        }
    }

    if (prod1 >= UNIT) {
        revert PRBMath_MulDiv18_Overflow(x, y);
    }

    uint256 remainder;
    assembly ("memory-safe") {
        remainder := mulmod(x, y, UNIT)
        result :=
            mul(
                or(
                    div(sub(prod0, remainder), UNIT_LPOTD),
                    mul(sub(prod1, gt(remainder, prod0)), add(div(sub(0, UNIT_LPOTD), UNIT_LPOTD), 1))
                ),
                UNIT_INVERSE
            )
    }
}

/// @notice Calculates x*y÷denominator with 512-bit precision.
///
/// @dev This is an extension of {mulDiv} for signed numbers, which works by computing the signs and the absolute values separately.
///
/// Notes:
/// - The result is rounded toward zero.
///
/// Requirements:
/// - Refer to the requirements in {mulDiv}.
/// - None of the inputs can be `type(int256).min`.
/// - The result must fit in int256.
///
/// @param x The multiplicand as an int256.
/// @param y The multiplier as an int256.
/// @param denominator The divisor as an int256.
/// @return result The result as an int256.
/// @custom:smtchecker abstract-function-nondet
function mulDivSigned(int256 x, int256 y, int256 denominator) pure returns (int256 result) {
    if (x == type(int256).min || y == type(int256).min || denominator == type(int256).min) {
        revert PRBMath_MulDivSigned_InputTooSmall();
    }

    // Get hold of the absolute values of x, y and the denominator.
    uint256 xAbs;
    uint256 yAbs;
    uint256 dAbs;
    unchecked {
        xAbs = x < 0 ? uint256(-x) : uint256(x);
        yAbs = y < 0 ? uint256(-y) : uint256(y);
        dAbs = denominator < 0 ? uint256(-denominator) : uint256(denominator);
    }

    // Compute the absolute value of x*y÷denominator. The result must fit in int256.
    uint256 resultAbs = mulDiv(xAbs, yAbs, dAbs);
    if (resultAbs > uint256(type(int256).max)) {
        revert PRBMath_MulDivSigned_Overflow(x, y);
    }

    // Get the signs of x, y and the denominator.
    uint256 sx;
    uint256 sy;
    uint256 sd;
    assembly ("memory-safe") {
        // "sgt" is the "signed greater than" assembly instruction and "sub(0,1)" is -1 in two's complement.
        sx := sgt(x, sub(0, 1))
        sy := sgt(y, sub(0, 1))
        sd := sgt(denominator, sub(0, 1))
    }

    // XOR over sx, sy and sd. What this does is to check whether there are 1 or 3 negative signs in the inputs.
    // If there are, the result should be negative. Otherwise, it should be positive.
    unchecked {
        result = sx ^ sy ^ sd == 0 ? -int256(resultAbs) : int256(resultAbs);
    }
}

/// @notice Calculates the square root of x using the Babylonian method.
///
/// @dev See https://en.wikipedia.org/wiki/Methods_of_computing_square_roots#Babylonian_method.
///
/// Notes:
/// - If x is not a perfect square, the result is rounded down.
/// - Credits to OpenZeppelin for the explanations in comments below.
///
/// @param x The uint256 number for which to calculate the square root.
/// @return result The result as a uint256.
/// @custom:smtchecker abstract-function-nondet
function sqrt(uint256 x) pure returns (uint256 result) {
    if (x == 0) {
        return 0;
    }

    // For our first guess, we calculate the biggest power of 2 which is smaller than the square root of x.
    //
    // We know that the "msb" (most significant bit) of x is a power of 2 such that we have:
    //
    // $$
    // msb(x) <= x <= 2*msb(x)$
    // $$
    //
    // We write $msb(x)$ as $2^k$, and we get:
    //
    // $$
    // k = log_2(x)
    // $$
    //
    // Thus, we can write the initial inequality as:
    //
    // $$
    // 2^{log_2(x)} <= x <= 2*2^{log_2(x)+1} \\
    // sqrt(2^k) <= sqrt(x) < sqrt(2^{k+1}) \\
    // 2^{k/2} <= sqrt(x) < 2^{(k+1)/2} <= 2^{(k/2)+1}
    // $$
    //
    // Consequently, $2^{log_2(x) /2} is a good first approximation of sqrt(x) with at least one correct bit.
    uint256 xAux = uint256(x);
    result = 1;
    if (xAux >= 2 ** 128) {
        xAux >>= 128;
        result <<= 64;
    }
    if (xAux >= 2 ** 64) {
        xAux >>= 64;
        result <<= 32;
    }
    if (xAux >= 2 ** 32) {
        xAux >>= 32;
        result <<= 16;
    }
    if (xAux >= 2 ** 16) {
        xAux >>= 16;
        result <<= 8;
    }
    if (xAux >= 2 ** 8) {
        xAux >>= 8;
        result <<= 4;
    }
    if (xAux >= 2 ** 4) {
        xAux >>= 4;
        result <<= 2;
    }
    if (xAux >= 2 ** 2) {
        result <<= 1;
    }

    // At this point, `result` is an estimation with at least one bit of precision. We know the true value has at
    // most 128 bits, since it is the square root of a uint256. Newton's method converges quadratically (precision
    // doubles at every iteration). We thus need at most 7 iteration to turn our partial result with one bit of
    // precision into the expected uint128 result.
    unchecked {
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;
        result = (result + x / result) >> 1;

        // If x is not a perfect square, round the result toward zero.
        uint256 roundedResult = x / result;
        if (result >= roundedResult) {
            result = roundedResult;
        }
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (libraries/CommonEventsAndErrors.sol)

/// @notice A collection of common events and errors thrown within the Origami contracts
library CommonEventsAndErrors {
    error InsufficientBalance(address token, uint256 required, uint256 balance);
    error InvalidToken(address token);
    error InvalidParam();
    error InvalidAddress(address addr);
    error InvalidAmount(address token, uint256 amount);
    error ExpectedNonZero();
    error Slippage(uint256 minAmountExpected, uint256 actualAmount);
    error IsPaused();
    error UnknownExecuteError(bytes returndata);
    error InvalidAccess();
    error BreachedMaxTotalSupply(uint256 totalSupply, uint256 maxTotalSupply);

    event TokenRecovered(address indexed to, address indexed token, uint256 amount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Counters.sol)

pragma solidity ^0.8.0;

/**
 * @title Counters
 * @author Matt Condon (@shrugs)
 * @dev Provides counters that can only be incremented, decremented or reset. This can be used e.g. to track the number
 * of elements in a mapping, issuing ERC721 ids, or counting request ids.
 *
 * Include with `using Counters for Counters.Counter;`
 */
library Counters {
    struct Counter {
        // This variable should never be directly accessed by users of the library: interactions must be restricted to
        // the library's function. As of Solidity v0.5.2, this cannot be enforced, though there is a proposal to add
        // this feature: see https://github.com/ethereum/solidity/issues/4637
        uint256 _value; // default: 0
    }

    function current(Counter storage counter) internal view returns (uint256) {
        return counter._value;
    }

    function increment(Counter storage counter) internal {
        unchecked {
            counter._value += 1;
        }
    }

    function decrement(Counter storage counter) internal {
        uint256 value = counter._value;
        require(value > 0, "Counter: decrement overflow");
        unchecked {
            counter._value = value - 1;
        }
    }

    function reset(Counter storage counter) internal {
        counter._value = 0;
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (libraries/DynamicFees.sol)

import { IOrigamiOracle } from "contracts/interfaces/common/oracle/IOrigamiOracle.sol";
import { OrigamiMath } from "contracts/libraries/OrigamiMath.sol";
import { CommonEventsAndErrors } from "contracts/libraries/CommonEventsAndErrors.sol";

/**
 * @notice A helper to calculate dynamic entry and exit fees based off the difference
 * between an oracle historic vs spot price
 */
library DynamicFees {
    using OrigamiMath for uint256;

    enum FeeType {
        DEPOSIT_FEE,
        EXIT_FEE
    }

    /**
     * @notice The current deposit or exit fee based on market conditions.
     * Fees are applied to the portion of lovToken shares the depositor 
     * would have received. Instead that fee portion isn't minted (benefiting remaining users)
     * Ignoring the minFeeBps, deposit vs exit fees are symmetric:
     *   - A 0.004 cent increase in price (away from expected historic) should result a deposit fee of X bps
     *   - A 0.004 cent decrease in price (away from expected historic) should result an exit fee, also of X bps
     * ie X is the same in both cases.
     * @dev feeLeverageFactor has 4dp precision
     */
    function dynamicFeeBps(
        FeeType feeType,
        IOrigamiOracle oracle,
        address expectedBaseAsset,
        uint64 minFeeBps,
        uint256 feeLeverageFactor
    ) internal view returns (uint256) {
        // Pull the spot and expected historic price from the oracle.
        // Round up for both to be consistent no matter if the oracle is in expected quoted order or not.
        (uint256 _spotPrice, uint256 _histPrice, address _baseAsset, address _quoteAsset) = oracle.latestPrices(
            IOrigamiOracle.PriceType.SPOT_PRICE,
            OrigamiMath.Rounding.ROUND_UP,
            IOrigamiOracle.PriceType.HISTORIC_PRICE,
            OrigamiMath.Rounding.ROUND_UP
        );
        
        // Whether the expected 'base' asset of the oracle is indeed the base asset.
        // If not, then the delta and denominator is switched
        bool _inQuotedOrder;
        if (_baseAsset == expectedBaseAsset) {
            _inQuotedOrder = true;
        } else if (_quoteAsset != expectedBaseAsset) {
            revert CommonEventsAndErrors.InvalidToken(expectedBaseAsset);
        }

        uint256 _delta;
        uint256 _denominator;
        if (feeType == FeeType.DEPOSIT_FEE) {
            // If spot price is > than the expected historic, then they are exiting
            // at a price better than expected. The exit fee is based off the relative
            // difference of the expected spotPrice - historicPrice.
            // Or opposite if the oracle order is inverted
            unchecked {
                if (_inQuotedOrder) {
                    if (_spotPrice < _histPrice) {
                        (_delta, _denominator) = (_histPrice - _spotPrice, _histPrice);
                    }
                } else {
                    if (_spotPrice > _histPrice) {
                        (_delta, _denominator) = (_spotPrice - _histPrice, _spotPrice);
                    }
                }
            }
        } else {
            // If spot price is > than the expected historic, then they are exiting
            // at a price better than expected. The exit fee is based off the relative
            // difference of the expected spotPrice - historicPrice.
            // Or opposite if the oracle order is inverted
            unchecked {
                if (_inQuotedOrder) {
                    if (_spotPrice > _histPrice) {
                        (_delta, _denominator) = (_spotPrice - _histPrice, _histPrice);
                    }
                } else {
                    if (_spotPrice < _histPrice) {
                        (_delta, _denominator) = (_histPrice - _spotPrice, _spotPrice);
                    }
                }
            }
        }

        // If no delta, just return the min fee
        if (_delta == 0) {
            return minFeeBps;
        }

        // Relative diff multiply by a leverage factor to match the worst case lovToken
        // effective exposure
        // Result is in basis points, since `feeLeverageFactor` has 4dp precision
        uint256 _fee = _delta.mulDiv(
            feeLeverageFactor,
            _denominator,
            OrigamiMath.Rounding.ROUND_UP
        );

        // Use the maximum of the calculated fee and a pre-set minimum.
        return minFeeBps > _fee ? minFeeBps : _fee;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/ECDSA.sol)

pragma solidity ^0.8.0;

import "../Strings.sol";

/**
 * @dev Elliptic Curve Digital Signature Algorithm (ECDSA) operations.
 *
 * These functions can be used to verify that a message was signed by the holder
 * of the private keys of a given address.
 */
library ECDSA {
    enum RecoverError {
        NoError,
        InvalidSignature,
        InvalidSignatureLength,
        InvalidSignatureS,
        InvalidSignatureV // Deprecated in v4.8
    }

    function _throwError(RecoverError error) private pure {
        if (error == RecoverError.NoError) {
            return; // no error: do nothing
        } else if (error == RecoverError.InvalidSignature) {
            revert("ECDSA: invalid signature");
        } else if (error == RecoverError.InvalidSignatureLength) {
            revert("ECDSA: invalid signature length");
        } else if (error == RecoverError.InvalidSignatureS) {
            revert("ECDSA: invalid signature 's' value");
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature` or error string. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     *
     * Documentation for signature generation:
     * - with https://web3js.readthedocs.io/en/v1.3.4/web3-eth-accounts.html#sign[Web3.js]
     * - with https://docs.ethers.io/v5/api/signer/#Signer-signMessage[ethers]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes memory signature) internal pure returns (address, RecoverError) {
        if (signature.length == 65) {
            bytes32 r;
            bytes32 s;
            uint8 v;
            // ecrecover takes the signature parameters, and the only way to get them
            // currently is to use assembly.
            /// @solidity memory-safe-assembly
            assembly {
                r := mload(add(signature, 0x20))
                s := mload(add(signature, 0x40))
                v := byte(0, mload(add(signature, 0x60)))
            }
            return tryRecover(hash, v, r, s);
        } else {
            return (address(0), RecoverError.InvalidSignatureLength);
        }
    }

    /**
     * @dev Returns the address that signed a hashed message (`hash`) with
     * `signature`. This address can then be used for verification purposes.
     *
     * The `ecrecover` EVM opcode allows for malleable (non-unique) signatures:
     * this function rejects them by requiring the `s` value to be in the lower
     * half order, and the `v` value to be either 27 or 28.
     *
     * IMPORTANT: `hash` _must_ be the result of a hash operation for the
     * verification to be secure: it is possible to craft signatures that
     * recover to arbitrary addresses for non-hashed data. A safe way to ensure
     * this is by receiving a hash of the original message (which may otherwise
     * be too long), and then calling {toEthSignedMessageHash} on it.
     */
    function recover(bytes32 hash, bytes memory signature) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, signature);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `r` and `vs` short-signature fields separately.
     *
     * See https://eips.ethereum.org/EIPS/eip-2098[EIP-2098 short signatures]
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address, RecoverError) {
        bytes32 s = vs & bytes32(0x7fffffffffffffffffffffffffffffffffffffffffffffffffffffffffffffff);
        uint8 v = uint8((uint256(vs) >> 255) + 27);
        return tryRecover(hash, v, r, s);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `r and `vs` short-signature fields separately.
     *
     * _Available since v4.2._
     */
    function recover(bytes32 hash, bytes32 r, bytes32 vs) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, r, vs);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Overload of {ECDSA-tryRecover} that receives the `v`,
     * `r` and `s` signature fields separately.
     *
     * _Available since v4.3._
     */
    function tryRecover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address, RecoverError) {
        // EIP-2 still allows signature malleability for ecrecover(). Remove this possibility and make the signature
        // unique. Appendix F in the Ethereum Yellow paper (https://ethereum.github.io/yellowpaper/paper.pdf), defines
        // the valid range for s in (301): 0 < s < secp256k1n ÷ 2 + 1, and for v in (302): v ∈ {27, 28}. Most
        // signatures from current libraries generate a unique signature with an s-value in the lower half order.
        //
        // If your library generates malleable signatures, such as s-values in the upper range, calculate a new s-value
        // with 0xFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFFEBAAEDCE6AF48A03BBFD25E8CD0364141 - s1 and flip v from 27 to 28 or
        // vice versa. If your library also generates signatures with 0/1 for v instead 27/28, add 27 to v to accept
        // these malleable signatures as well.
        if (uint256(s) > 0x7FFFFFFFFFFFFFFFFFFFFFFFFFFFFFFF5D576E7357A4501DDFE92F46681B20A0) {
            return (address(0), RecoverError.InvalidSignatureS);
        }

        // If the signature is valid (and not malleable), return the signer address
        address signer = ecrecover(hash, v, r, s);
        if (signer == address(0)) {
            return (address(0), RecoverError.InvalidSignature);
        }

        return (signer, RecoverError.NoError);
    }

    /**
     * @dev Overload of {ECDSA-recover} that receives the `v`,
     * `r` and `s` signature fields separately.
     */
    function recover(bytes32 hash, uint8 v, bytes32 r, bytes32 s) internal pure returns (address) {
        (address recovered, RecoverError error) = tryRecover(hash, v, r, s);
        _throwError(error);
        return recovered;
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from a `hash`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes32 hash) internal pure returns (bytes32 message) {
        // 32 is the length in bytes of hash,
        // enforced by the type signature above
        /// @solidity memory-safe-assembly
        assembly {
            mstore(0x00, "\x19Ethereum Signed Message:\n32")
            mstore(0x1c, hash)
            message := keccak256(0x00, 0x3c)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Message, created from `s`. This
     * produces hash corresponding to the one signed with the
     * https://eth.wiki/json-rpc/API#eth_sign[`eth_sign`]
     * JSON-RPC method as part of EIP-191.
     *
     * See {recover}.
     */
    function toEthSignedMessageHash(bytes memory s) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19Ethereum Signed Message:\n", Strings.toString(s.length), s));
    }

    /**
     * @dev Returns an Ethereum Signed Typed Data, created from a
     * `domainSeparator` and a `structHash`. This produces hash corresponding
     * to the one signed with the
     * https://eips.ethereum.org/EIPS/eip-712[`eth_signTypedData`]
     * JSON-RPC method as part of EIP-712.
     *
     * See {recover}.
     */
    function toTypedDataHash(bytes32 domainSeparator, bytes32 structHash) internal pure returns (bytes32 data) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(ptr, "\x19\x01")
            mstore(add(ptr, 0x02), domainSeparator)
            mstore(add(ptr, 0x22), structHash)
            data := keccak256(ptr, 0x42)
        }
    }

    /**
     * @dev Returns an Ethereum Signed Data with intended validator, created from a
     * `validator` and `data` according to the version 0 of EIP-191.
     *
     * See {recover}.
     */
    function toDataWithIntendedValidatorHash(address validator, bytes memory data) internal pure returns (bytes32) {
        return keccak256(abi.encodePacked("\x19\x00", validator, data));
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/cryptography/EIP712.sol)

pragma solidity ^0.8.8;

import "./ECDSA.sol";
import "../ShortStrings.sol";
import "../../interfaces/IERC5267.sol";

/**
 * @dev https://eips.ethereum.org/EIPS/eip-712[EIP 712] is a standard for hashing and signing of typed structured data.
 *
 * The encoding specified in the EIP is very generic, and such a generic implementation in Solidity is not feasible,
 * thus this contract does not implement the encoding itself. Protocols need to implement the type-specific encoding
 * they need in their contracts using a combination of `abi.encode` and `keccak256`.
 *
 * This contract implements the EIP 712 domain separator ({_domainSeparatorV4}) that is used as part of the encoding
 * scheme, and the final step of the encoding to obtain the message digest that is then signed via ECDSA
 * ({_hashTypedDataV4}).
 *
 * The implementation of the domain separator was designed to be as efficient as possible while still properly updating
 * the chain id to protect against replay attacks on an eventual fork of the chain.
 *
 * NOTE: This contract implements the version of the encoding known as "v4", as implemented by the JSON RPC method
 * https://docs.metamask.io/guide/signing-data.html[`eth_signTypedDataV4` in MetaMask].
 *
 * NOTE: In the upgradeable version of this contract, the cached values will correspond to the address, and the domain
 * separator of the implementation contract. This will cause the `_domainSeparatorV4` function to always rebuild the
 * separator from the immutable values, which is cheaper than accessing a cached version in cold storage.
 *
 * _Available since v3.4._
 *
 * @custom:oz-upgrades-unsafe-allow state-variable-immutable state-variable-assignment
 */
abstract contract EIP712 is IERC5267 {
    using ShortStrings for *;

    bytes32 private constant _TYPE_HASH =
        keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)");

    // Cache the domain separator as an immutable value, but also store the chain id that it corresponds to, in order to
    // invalidate the cached domain separator if the chain id changes.
    bytes32 private immutable _cachedDomainSeparator;
    uint256 private immutable _cachedChainId;
    address private immutable _cachedThis;

    bytes32 private immutable _hashedName;
    bytes32 private immutable _hashedVersion;

    ShortString private immutable _name;
    ShortString private immutable _version;
    string private _nameFallback;
    string private _versionFallback;

    /**
     * @dev Initializes the domain separator and parameter caches.
     *
     * The meaning of `name` and `version` is specified in
     * https://eips.ethereum.org/EIPS/eip-712#definition-of-domainseparator[EIP 712]:
     *
     * - `name`: the user readable name of the signing domain, i.e. the name of the DApp or the protocol.
     * - `version`: the current major version of the signing domain.
     *
     * NOTE: These parameters cannot be changed except through a xref:learn::upgrading-smart-contracts.adoc[smart
     * contract upgrade].
     */
    constructor(string memory name, string memory version) {
        _name = name.toShortStringWithFallback(_nameFallback);
        _version = version.toShortStringWithFallback(_versionFallback);
        _hashedName = keccak256(bytes(name));
        _hashedVersion = keccak256(bytes(version));

        _cachedChainId = block.chainid;
        _cachedDomainSeparator = _buildDomainSeparator();
        _cachedThis = address(this);
    }

    /**
     * @dev Returns the domain separator for the current chain.
     */
    function _domainSeparatorV4() internal view returns (bytes32) {
        if (address(this) == _cachedThis && block.chainid == _cachedChainId) {
            return _cachedDomainSeparator;
        } else {
            return _buildDomainSeparator();
        }
    }

    function _buildDomainSeparator() private view returns (bytes32) {
        return keccak256(abi.encode(_TYPE_HASH, _hashedName, _hashedVersion, block.chainid, address(this)));
    }

    /**
     * @dev Given an already https://eips.ethereum.org/EIPS/eip-712#definition-of-hashstruct[hashed struct], this
     * function returns the hash of the fully encoded EIP712 message for this domain.
     *
     * This hash can be used together with {ECDSA-recover} to obtain the signer of a message. For example:
     *
     * ```solidity
     * bytes32 digest = _hashTypedDataV4(keccak256(abi.encode(
     *     keccak256("Mail(address to,string contents)"),
     *     mailTo,
     *     keccak256(bytes(mailContents))
     * )));
     * address signer = ECDSA.recover(digest, signature);
     * ```
     */
    function _hashTypedDataV4(bytes32 structHash) internal view virtual returns (bytes32) {
        return ECDSA.toTypedDataHash(_domainSeparatorV4(), structHash);
    }

    /**
     * @dev See {EIP-5267}.
     *
     * _Available since v4.9._
     */
    function eip712Domain()
        public
        view
        virtual
        override
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        )
    {
        return (
            hex"0f", // 01111
            _name.toStringWithFallback(_nameFallback),
            _version.toStringWithFallback(_versionFallback),
            block.chainid,
            address(this),
            bytes32(0),
            new uint256[](0)
        );
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/ERC20.sol)

pragma solidity ^0.8.0;

import "./IERC20.sol";
import "./extensions/IERC20Metadata.sol";
import "../../utils/Context.sol";

/**
 * @dev Implementation of the {IERC20} interface.
 *
 * This implementation is agnostic to the way tokens are created. This means
 * that a supply mechanism has to be added in a derived contract using {_mint}.
 * For a generic mechanism see {ERC20PresetMinterPauser}.
 *
 * TIP: For a detailed writeup see our guide
 * https://forum.openzeppelin.com/t/how-to-implement-erc20-supply-mechanisms/226[How
 * to implement supply mechanisms].
 *
 * The default value of {decimals} is 18. To change this, you should override
 * this function so it returns a different value.
 *
 * We have followed general OpenZeppelin Contracts guidelines: functions revert
 * instead returning `false` on failure. This behavior is nonetheless
 * conventional and does not conflict with the expectations of ERC20
 * applications.
 *
 * Additionally, an {Approval} event is emitted on calls to {transferFrom}.
 * This allows applications to reconstruct the allowance for all accounts just
 * by listening to said events. Other implementations of the EIP may not emit
 * these events, as it isn't required by the specification.
 *
 * Finally, the non-standard {decreaseAllowance} and {increaseAllowance}
 * functions have been added to mitigate the well-known issues around setting
 * allowances. See {IERC20-approve}.
 */
contract ERC20 is Context, IERC20, IERC20Metadata {
    mapping(address => uint256) private _balances;

    mapping(address => mapping(address => uint256)) private _allowances;

    uint256 private _totalSupply;

    string private _name;
    string private _symbol;

    /**
     * @dev Sets the values for {name} and {symbol}.
     *
     * All two of these values are immutable: they can only be set once during
     * construction.
     */
    constructor(string memory name_, string memory symbol_) {
        _name = name_;
        _symbol = symbol_;
    }

    /**
     * @dev Returns the name of the token.
     */
    function name() public view virtual override returns (string memory) {
        return _name;
    }

    /**
     * @dev Returns the symbol of the token, usually a shorter version of the
     * name.
     */
    function symbol() public view virtual override returns (string memory) {
        return _symbol;
    }

    /**
     * @dev Returns the number of decimals used to get its user representation.
     * For example, if `decimals` equals `2`, a balance of `505` tokens should
     * be displayed to a user as `5.05` (`505 / 10 ** 2`).
     *
     * Tokens usually opt for a value of 18, imitating the relationship between
     * Ether and Wei. This is the default value returned by this function, unless
     * it's overridden.
     *
     * NOTE: This information is only used for _display_ purposes: it in
     * no way affects any of the arithmetic of the contract, including
     * {IERC20-balanceOf} and {IERC20-transfer}.
     */
    function decimals() public view virtual override returns (uint8) {
        return 18;
    }

    /**
     * @dev See {IERC20-totalSupply}.
     */
    function totalSupply() public view virtual override returns (uint256) {
        return _totalSupply;
    }

    /**
     * @dev See {IERC20-balanceOf}.
     */
    function balanceOf(address account) public view virtual override returns (uint256) {
        return _balances[account];
    }

    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `amount`.
     */
    function transfer(address to, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _transfer(owner, to, amount);
        return true;
    }

    /**
     * @dev See {IERC20-allowance}.
     */
    function allowance(address owner, address spender) public view virtual override returns (uint256) {
        return _allowances[owner][spender];
    }

    /**
     * @dev See {IERC20-approve}.
     *
     * NOTE: If `amount` is the maximum `uint256`, the allowance is not updated on
     * `transferFrom`. This is semantically equivalent to an infinite approval.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function approve(address spender, uint256 amount) public virtual override returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, amount);
        return true;
    }

    /**
     * @dev See {IERC20-transferFrom}.
     *
     * Emits an {Approval} event indicating the updated allowance. This is not
     * required by the EIP. See the note at the beginning of {ERC20}.
     *
     * NOTE: Does not update the allowance if the current allowance
     * is the maximum `uint256`.
     *
     * Requirements:
     *
     * - `from` and `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     * - the caller must have allowance for ``from``'s tokens of at least
     * `amount`.
     */
    function transferFrom(address from, address to, uint256 amount) public virtual override returns (bool) {
        address spender = _msgSender();
        _spendAllowance(from, spender, amount);
        _transfer(from, to, amount);
        return true;
    }

    /**
     * @dev Atomically increases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     */
    function increaseAllowance(address spender, uint256 addedValue) public virtual returns (bool) {
        address owner = _msgSender();
        _approve(owner, spender, allowance(owner, spender) + addedValue);
        return true;
    }

    /**
     * @dev Atomically decreases the allowance granted to `spender` by the caller.
     *
     * This is an alternative to {approve} that can be used as a mitigation for
     * problems described in {IERC20-approve}.
     *
     * Emits an {Approval} event indicating the updated allowance.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `spender` must have allowance for the caller of at least
     * `subtractedValue`.
     */
    function decreaseAllowance(address spender, uint256 subtractedValue) public virtual returns (bool) {
        address owner = _msgSender();
        uint256 currentAllowance = allowance(owner, spender);
        require(currentAllowance >= subtractedValue, "ERC20: decreased allowance below zero");
        unchecked {
            _approve(owner, spender, currentAllowance - subtractedValue);
        }

        return true;
    }

    /**
     * @dev Moves `amount` of tokens from `from` to `to`.
     *
     * This internal function is equivalent to {transfer}, and can be used to
     * e.g. implement automatic token fees, slashing mechanisms, etc.
     *
     * Emits a {Transfer} event.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `from` must have a balance of at least `amount`.
     */
    function _transfer(address from, address to, uint256 amount) internal virtual {
        require(from != address(0), "ERC20: transfer from the zero address");
        require(to != address(0), "ERC20: transfer to the zero address");

        _beforeTokenTransfer(from, to, amount);

        uint256 fromBalance = _balances[from];
        require(fromBalance >= amount, "ERC20: transfer amount exceeds balance");
        unchecked {
            _balances[from] = fromBalance - amount;
            // Overflow not possible: the sum of all balances is capped by totalSupply, and the sum is preserved by
            // decrementing then incrementing.
            _balances[to] += amount;
        }

        emit Transfer(from, to, amount);

        _afterTokenTransfer(from, to, amount);
    }

    /** @dev Creates `amount` tokens and assigns them to `account`, increasing
     * the total supply.
     *
     * Emits a {Transfer} event with `from` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function _mint(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: mint to the zero address");

        _beforeTokenTransfer(address(0), account, amount);

        _totalSupply += amount;
        unchecked {
            // Overflow not possible: balance + amount is at most totalSupply + amount, which is checked above.
            _balances[account] += amount;
        }
        emit Transfer(address(0), account, amount);

        _afterTokenTransfer(address(0), account, amount);
    }

    /**
     * @dev Destroys `amount` tokens from `account`, reducing the
     * total supply.
     *
     * Emits a {Transfer} event with `to` set to the zero address.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     * - `account` must have at least `amount` tokens.
     */
    function _burn(address account, uint256 amount) internal virtual {
        require(account != address(0), "ERC20: burn from the zero address");

        _beforeTokenTransfer(account, address(0), amount);

        uint256 accountBalance = _balances[account];
        require(accountBalance >= amount, "ERC20: burn amount exceeds balance");
        unchecked {
            _balances[account] = accountBalance - amount;
            // Overflow not possible: amount <= accountBalance <= totalSupply.
            _totalSupply -= amount;
        }

        emit Transfer(account, address(0), amount);

        _afterTokenTransfer(account, address(0), amount);
    }

    /**
     * @dev Sets `amount` as the allowance of `spender` over the `owner` s tokens.
     *
     * This internal function is equivalent to `approve`, and can be used to
     * e.g. set automatic allowances for certain subsystems, etc.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `owner` cannot be the zero address.
     * - `spender` cannot be the zero address.
     */
    function _approve(address owner, address spender, uint256 amount) internal virtual {
        require(owner != address(0), "ERC20: approve from the zero address");
        require(spender != address(0), "ERC20: approve to the zero address");

        _allowances[owner][spender] = amount;
        emit Approval(owner, spender, amount);
    }

    /**
     * @dev Updates `owner` s allowance for `spender` based on spent `amount`.
     *
     * Does not update the allowance amount in case of infinite allowance.
     * Revert if not enough allowance is available.
     *
     * Might emit an {Approval} event.
     */
    function _spendAllowance(address owner, address spender, uint256 amount) internal virtual {
        uint256 currentAllowance = allowance(owner, spender);
        if (currentAllowance != type(uint256).max) {
            require(currentAllowance >= amount, "ERC20: insufficient allowance");
            unchecked {
                _approve(owner, spender, currentAllowance - amount);
            }
        }
    }

    /**
     * @dev Hook that is called before any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * will be transferred to `to`.
     * - when `from` is zero, `amount` tokens will be minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens will be burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _beforeTokenTransfer(address from, address to, uint256 amount) internal virtual {}

    /**
     * @dev Hook that is called after any transfer of tokens. This includes
     * minting and burning.
     *
     * Calling conditions:
     *
     * - when `from` and `to` are both non-zero, `amount` of ``from``'s tokens
     * has been transferred to `to`.
     * - when `from` is zero, `amount` tokens have been minted for `to`.
     * - when `to` is zero, `amount` of ``from``'s tokens have been burned.
     * - `from` and `to` are never both zero.
     *
     * To learn more about hooks, head to xref:ROOT:extending-contracts.adoc#using-hooks[Using Hooks].
     */
    function _afterTokenTransfer(address from, address to, uint256 amount) internal virtual {}
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/ERC20Permit.sol)

pragma solidity ^0.8.0;

import "./IERC20Permit.sol";
import "../ERC20.sol";
import "../../../utils/cryptography/ECDSA.sol";
import "../../../utils/cryptography/EIP712.sol";
import "../../../utils/Counters.sol";

/**
 * @dev Implementation of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on `{IERC20-approve}`, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * _Available since v3.4._
 */
abstract contract ERC20Permit is ERC20, IERC20Permit, EIP712 {
    using Counters for Counters.Counter;

    mapping(address => Counters.Counter) private _nonces;

    // solhint-disable-next-line var-name-mixedcase
    bytes32 private constant _PERMIT_TYPEHASH =
        keccak256("Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)");
    /**
     * @dev In previous versions `_PERMIT_TYPEHASH` was declared as `immutable`.
     * However, to ensure consistency with the upgradeable transpiler, we will continue
     * to reserve a slot.
     * @custom:oz-renamed-from _PERMIT_TYPEHASH
     */
    // solhint-disable-next-line var-name-mixedcase
    bytes32 private _PERMIT_TYPEHASH_DEPRECATED_SLOT;

    /**
     * @dev Initializes the {EIP712} domain separator using the `name` parameter, and setting `version` to `"1"`.
     *
     * It's a good idea to use the same `name` that is defined as the ERC20 token name.
     */
    constructor(string memory name) EIP712(name, "1") {}

    /**
     * @dev See {IERC20Permit-permit}.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual override {
        require(block.timestamp <= deadline, "ERC20Permit: expired deadline");

        bytes32 structHash = keccak256(abi.encode(_PERMIT_TYPEHASH, owner, spender, value, _useNonce(owner), deadline));

        bytes32 hash = _hashTypedDataV4(structHash);

        address signer = ECDSA.recover(hash, v, r, s);
        require(signer == owner, "ERC20Permit: invalid signature");

        _approve(owner, spender, value);
    }

    /**
     * @dev See {IERC20Permit-nonces}.
     */
    function nonces(address owner) public view virtual override returns (uint256) {
        return _nonces[owner].current();
    }

    /**
     * @dev See {IERC20Permit-DOMAIN_SEPARATOR}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view override returns (bytes32) {
        return _domainSeparatorV4();
    }

    /**
     * @dev "Consume a nonce": return the current value and increment.
     *
     * _Available since v4.1._
     */
    function _useNonce(address owner) internal virtual returns (uint256 current) {
        Counters.Counter storage nonce = _nonces[owner];
        current = nonce.current();
        nonce.increment();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

    /**
     * @dev Emitted when the allowance of a `spender` for an `owner` is set by
     * a call to {approve}. `value` is the new allowance.
     */
    event Approval(address indexed owner, address indexed spender, uint256 value);

    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` tokens from the caller's account to `to`.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transfer(address to, uint256 amount) external returns (bool);

    /**
     * @dev Returns the remaining number of tokens that `spender` will be
     * allowed to spend on behalf of `owner` through {transferFrom}. This is
     * zero by default.
     *
     * This value changes when {approve} or {transferFrom} are called.
     */
    function allowance(address owner, address spender) external view returns (uint256);

    /**
     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * IMPORTANT: Beware that changing an allowance with this method brings the risk
     * that someone may use both the old and the new allowance by unfortunate
     * transaction ordering. One possible solution to mitigate this race
     * condition is to first reduce the spender's allowance to 0 and set the
     * desired value afterwards:
     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729
     *
     * Emits an {Approval} event.
     */
    function approve(address spender, uint256 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 amount) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 *
 * _Available since v4.1._
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (interfaces/IERC5267.sol)

pragma solidity ^0.8.0;

interface IERC5267 {
    /**
     * @dev MAY be emitted to signal that the domain could have changed.
     */
    event EIP712DomainChanged();

    /**
     * @dev returns the fields and values that describe the domain separator used by this contract for EIP-712
     * signature.
     */
    function eip712Domain()
        external
        view
        returns (
            bytes1 fields,
            string memory name,
            string memory version,
            uint256 chainId,
            address verifyingContract,
            bytes32 salt,
            uint256[] memory extensions
        );
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/common/IMintableToken.sol)

import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { IERC20Permit } from "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol";

/// @notice An ERC20 token which can be minted/burnt by approved accounts
interface IMintableToken is IERC20, IERC20Permit {
    function mint(address to, uint256 amount) external;
    function burn(address account, uint256 amount) external;
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/common/access/IOrigamiElevatedAccess.sol)

/**
 * @notice Inherit to add Owner roles for DAO elevated access.
 */ 
interface IOrigamiElevatedAccess {
    event ExplicitAccessSet(address indexed account, bytes4 indexed fnSelector, bool indexed value);

    event NewOwnerProposed(address indexed oldOwner, address indexed oldProposedOwner, address indexed newProposedOwner);
    event NewOwnerAccepted(address indexed oldOwner, address indexed newOwner);

    struct ExplicitAccess {
        bytes4 fnSelector;
        bool allowed;
    }

    /**
     * @notice The address of the current owner.
     */ 
    function owner() external view returns (address);

    /**
     * @notice Explicit approval for an address to execute a function.
     * allowedCaller => function selector => true/false
     */
    function explicitFunctionAccess(address contractAddr, bytes4 functionSelector) external view returns (bool);

    /**
     * @notice Revoke ownership. Be very certain before calling this, as no
     * further elevated access can be called.
     */
    function revokeOwnership() external;

    /**
     * @notice Proposes a new Owner.
     * Can only be called by the current owner
     */
    function proposeNewOwner(address account) external;

    /**
     * @notice Caller accepts the role as new Owner.
     * Can only be called by the proposed owner
     */
    function acceptOwner() external;

    /**
     * @notice Grant `allowedCaller` the rights to call the function selectors in the access list.
     * @dev fnSelector == bytes4(keccak256("fn(argType1,argType2,...)"))
     */
    function setExplicitAccess(address allowedCaller, ExplicitAccess[] calldata access) external;
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/investments/IOrigamiInvestment.sol)

import { IERC20Metadata } from "@openzeppelin/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import { IERC20Permit } from "@openzeppelin/contracts/token/ERC20/extensions/draft-IERC20Permit.sol";

/**
 * @title Origami Investment
 * @notice Users invest in the underlying protocol and receive a number of this Origami investment in return.
 * Origami will apply the accepted investment token into the underlying protocol in the most optimal way.
 */
interface IOrigamiInvestment is IERC20Metadata, IERC20Permit {
    event TokenPricesSet(address indexed _tokenPrices);
    event ManagerSet(address indexed manager);
    event PerformanceFeeSet(uint256 fee);
    
    /**
     * @notice Track the depoyed version of this contract. 
     */
    function apiVersion() external pure returns (string memory);

    /**
     * @notice The underlying token this investment wraps. 
     * @dev For informational purposes only, eg integrations/FE
     * If the investment wraps a protocol without an ERC20 (eg a non-liquid staked position)
     * then this may be 0x0
     */
    function baseToken() external view returns (address);

    /** 
     * @notice Emitted when a user makes a new investment
     * @param user The user who made the investment
     * @param fromTokenAmount The number of `fromToken` used to invest
     * @param fromToken The token used to invest, one of `acceptedInvestTokens()`
     * @param investmentAmount The number of investment tokens received, after fees
     **/
    event Invested(address indexed user, uint256 fromTokenAmount, address indexed fromToken, uint256 investmentAmount);

    /**
     * @notice Emitted when a user exists a position in an investment
     * @param user The user who exited the investment
     * @param investmentAmount The number of Origami investment tokens sold
     * @param toToken The token the user exited into
     * @param toTokenAmount The number of `toToken` received, after fees
     * @param recipient The receipient address of the `toToken`s
     **/
    event Exited(address indexed user, uint256 investmentAmount, address indexed toToken, uint256 toTokenAmount, address indexed recipient);

    /// @notice Errors for unsupported functions - for example if native chain ETH/AVAX/etc isn't a vaild investment
    error Unsupported();

    /**
     * @notice The set of accepted tokens which can be used to invest.
     * If the native chain ETH/AVAX is accepted, 0x0 will also be included in this list.
     */
    function acceptedInvestTokens() external view returns (address[] memory);

    /**
     * @notice The set of accepted tokens which can be used to exit into.
     * If the native chain ETH/AVAX is accepted, 0x0 will also be included in this list.
     */
    function acceptedExitTokens() external view returns (address[] memory);

    /**
     * @notice Whether new investments are paused.
     */
    function areInvestmentsPaused() external view returns (bool);

    /**
     * @notice Whether exits are temporarily paused.
     */
    function areExitsPaused() external view returns (bool);

    /**
     * @notice Quote data required when entering into this investment.
     */
    struct InvestQuoteData {
        /// @notice The token used to invest, which must be one of `acceptedInvestTokens()`
        address fromToken;

        /// @notice The quantity of `fromToken` to invest with
        uint256 fromTokenAmount;

        /// @notice The maximum acceptable slippage of the `expectedInvestmentAmount`
        uint256 maxSlippageBps;

        /// @notice The maximum deadline to execute the transaction.
        uint256 deadline;

        /// @notice The expected amount of this Origami Investment token to receive in return
        uint256 expectedInvestmentAmount;

        /// @notice The minimum amount of this Origami Investment Token to receive after
        /// slippage has been applied.
        uint256 minInvestmentAmount;

        /// @notice Any extra quote parameters required by the underlying investment
        bytes underlyingInvestmentQuoteData;
    }

    /**
     * @notice Quote data required when exoomg this investment.
     */
    struct ExitQuoteData {
        /// @notice The amount of this investment to sell
        uint256 investmentTokenAmount;

        /// @notice The token to sell into, which must be one of `acceptedExitTokens()`
        address toToken;

        /// @notice The maximum acceptable slippage of the `expectedToTokenAmount`
        uint256 maxSlippageBps;

        /// @notice The maximum deadline to execute the transaction.
        uint256 deadline;

        /// @notice The expected amount of `toToken` to receive in return
        /// @dev Note slippage is applied to this when calling `invest()`
        uint256 expectedToTokenAmount;

        /// @notice The minimum amount of `toToken` to receive after
        /// slippage has been applied.
        uint256 minToTokenAmount;

        /// @notice Any extra quote parameters required by the underlying investment
        bytes underlyingInvestmentQuoteData;
    }

    /**
     * @notice Get a quote to buy this Origami investment using one of the accepted tokens. 
     * @dev The 0x0 address can be used for native chain ETH/AVAX
     * @param fromTokenAmount How much of `fromToken` to invest with
     * @param fromToken What ERC20 token to purchase with. This must be one of `acceptedInvestTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received investment amount
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any params required for the underlying investment type.
     * @return investFeeBps Any fees expected when investing with the given token, either from Origami or from the underlying investment.
     */
    function investQuote(
        uint256 fromTokenAmount, 
        address fromToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external view returns (
        InvestQuoteData memory quoteData, 
        uint256[] memory investFeeBps
    );

    /** 
      * @notice User buys this Origami investment with an amount of one of the approved ERC20 tokens. 
      * @param quoteData The quote data received from investQuote()
      * @return investmentAmount The actual number of this Origami investment tokens received.
      */
    function investWithToken(
        InvestQuoteData calldata quoteData
    ) external returns (
        uint256 investmentAmount
    );

    /** 
      * @notice User buys this Origami investment with an amount of native chain token (ETH/AVAX)
      * @param quoteData The quote data received from investQuote()
      * @return investmentAmount The actual number of this Origami investment tokens received.
      */
    function investWithNative(
        InvestQuoteData calldata quoteData
    ) external payable returns (
        uint256 investmentAmount
    );

    /**
     * @notice Get a quote to sell this Origami investment to receive one of the accepted tokens.
     * @dev The 0x0 address can be used for native chain ETH/AVAX
     * @param investmentAmount The number of Origami investment tokens to sell
     * @param toToken The token to receive when selling. This must be one of `acceptedExitTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received `toToken`
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any params required for the underlying investment type.
     * @return exitFeeBps Any fees expected when exiting the investment to the nominated token, either from Origami or from the underlying investment.
     */
    function exitQuote(
        uint256 investmentAmount,
        address toToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external view returns (
        ExitQuoteData memory quoteData, 
        uint256[] memory exitFeeBps
    );

    /** 
      * @notice Sell this Origami investment to receive one of the accepted tokens.
      * @param quoteData The quote data received from exitQuote()
      * @param recipient The receiving address of the `toToken`
      * @return toTokenAmount The number of `toToken` tokens received upon selling the Origami investment tokens.
      */
    function exitToToken(
        ExitQuoteData calldata quoteData,
        address recipient
    ) external returns (
        uint256 toTokenAmount
    );

    /** 
      * @notice Sell this Origami investment to native ETH/AVAX.
      * @param quoteData The quote data received from exitQuote()
      * @param recipient The receiving address of the native chain token.
      * @return nativeAmount The number of native chain ETH/AVAX/etc tokens received upon selling the Origami investment tokens.
      */
    function exitToNative(
        ExitQuoteData calldata quoteData, 
        address payable recipient
    ) external returns (
        uint256 nativeAmount
    );

    /**
     * @notice The maximum amount of fromToken's that can be deposited
     * taking any other underlying protocol constraints into consideration
     */
    function maxInvest(address fromToken) external view returns (uint256 amount);

    /**
     * @notice The maximum amount of tokens that can be exited into the toToken
     * taking any other underlying protocol constraints into consideration
     */
    function maxExit(address toToken) external view returns (uint256 amount);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/investments/lovToken/IOrigamiLovToken.sol)

import { IOrigamiOTokenManager } from "contracts/interfaces/investments/IOrigamiOTokenManager.sol";
import { IOrigamiInvestment } from "contracts/interfaces/investments/IOrigamiInvestment.sol";
import { ITokenPrices } from "contracts/interfaces/common/ITokenPrices.sol";

/**
 * @title Origami lovToken
 * 
 * @notice Users deposit with an accepted token and are minted lovTokens
 * Origami will rebalance to lever up on the underlying reserve token, targetting a
 * specific A/L (assets / liabilities) range
 *
 * @dev The logic on how to handle the specific deposits/exits for each lovToken is delegated
 * to a manager contract
 */
interface IOrigamiLovToken is IOrigamiInvestment {
    event PerformanceFeesCollected(address indexed feeCollector, uint256 mintAmount);
    event FeeCollectorSet(address indexed feeCollector);
    event MaxTotalSupplySet(uint256 maxTotalSupply);

    /**
     * @notice The token used to track reserves for this investment
     */
    function reserveToken() external view returns (address);

    /**
     * @notice The Origami contract managing the deposits/exits and the application of
     * the deposit tokens into the underlying protocol
     */
    function manager() external view returns (IOrigamiOTokenManager);

    /**
     * @notice Set the Origami lovToken Manager.
     */
    function setManager(address _manager) external;

    /**
     * @notice Set the vault performance fee
     * @dev Represented in basis points
     */
    function setAnnualPerformanceFee(uint48 _annualPerformanceFeeBps) external;

    /**
     * @notice Set the max total supply allowed for investments into this lovToken
     */
    function setMaxTotalSupply(uint256 _maxTotalSupply) external;

    /**
     * @notice Set the Origami performance fee collector address
     */
    function setFeeCollector(address _feeCollector) external;
    
    /**
     * @notice Set the helper to calculate current off-chain/subgraph integration
     */
    function setTokenPrices(address _tokenPrices) external;

    /** 
     * @notice Collect the performance fees to the Origami Treasury
     */
    function collectPerformanceFees() external returns (uint256 amount);

    /**
     * @notice How many reserve tokens would one get given a number of lovToken shares
     * @dev Implementations must use the Oracle 'SPOT_PRICE' to value any debt in terms of the reserve token
     */
    function sharesToReserves(uint256 shares) external view returns (uint256);

    /**
     * @notice How many lovToken shares would one get given a number of reserve tokens
     * @dev Implementations must use the Oracle 'SPOT_PRICE' to value any debt in terms of the reserve token
     */
    function reservesToShares(uint256 reserves) external view returns (uint256);

    /**
     * @notice How many reserve tokens would one get given a single share, as of now
     * @dev Implementations must use the Oracle 'HISTORIC_PRICE' to value any debt in terms of the reserve token
     */
    function reservesPerShare() external view returns (uint256);
    
    /**
     * @notice The current amount of available reserves for redemptions
     * @dev Implementations must use the Oracle 'SPOT_PRICE' to value any debt in terms of the reserve token
     */
    function totalReserves() external view returns (uint256);

    /**
     * @notice The maximum allowed supply of this token for user investments
     * @dev The actual totalSupply() may be greater than `maxTotalSupply`
     * in order to start organically shrinking supply or from performance fees
     */
    function maxTotalSupply() external view returns (uint256);

    /**
     * @notice Retrieve the current assets, liabilities and calculate the ratio
     * @dev Implementations must use the Oracle 'SPOT_PRICE' to value any debt in terms of the reserve token
     */
    function assetsAndLiabilities() external view returns (
        uint256 assets,
        uint256 liabilities,
        uint256 ratio
    );

    /**
     * @notice The current effective exposure (EE) of this lovToken
     * to `PRECISION` precision
     * @dev = reserves / (reserves - liabilities)
     * Implementations must use the Oracle 'SPOT_PRICE' to value any debt in terms of the reserve token
     */
    function effectiveExposure() external view returns (uint128);

    /**
     * @notice The valid lower and upper bounds of A/L allowed when users deposit/exit into lovToken
     * @dev Transactions will revert if the resulting A/L is outside of this range
     */
    function userALRange() external view returns (uint128 floor, uint128 ceiling);

    /**
     * @notice The current deposit and exit fee based on market conditions.
     * Fees are the equivalent of burning lovToken shares - benefit remaining vault users
     * @dev represented in basis points
     */
    function getDynamicFeesBps() external view returns (uint256 depositFeeBps, uint256 exitFeeBps);

    /**
     * @notice The address used to collect the Origami performance fees.
     */
    function feeCollector() external view returns (address);

    /**
     * @notice The annual performance fee to Origami treasury
     * Represented in basis points
     */
    function annualPerformanceFeeBps() external view returns (uint48);

    /**
     * @notice The last time the performance fee was collected
     */
    function lastPerformanceFeeTime() external view returns (uint48);

    /**
     * @notice The helper contract to retrieve Origami USD prices
     * @dev Required for off-chain/subgraph integration
     */
    function tokenPrices() external view returns (ITokenPrices);

    /**
     * @notice The performance fee amount which would be collected as of now, 
     * based on the total supply
     */
    function accruedPerformanceFee() external view returns (uint256);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/investments/lovToken/managers/IOrigamiLovTokenManager.sol)

import { IOrigamiOTokenManager } from "contracts/interfaces/investments/IOrigamiOTokenManager.sol";
import { IWhitelisted } from "contracts/interfaces/common/access/IWhitelisted.sol";
import { IOrigamiOracle } from "contracts/interfaces/common/oracle/IOrigamiOracle.sol";
import { IOrigamiLovToken } from "contracts/interfaces/investments/lovToken/IOrigamiLovToken.sol";

/**
 * @title Origami lovToken Manager
 * @notice The delegated logic to handle deposits/exits, and borrow/repay (rebalances) into the underlying reserve token
 */
interface IOrigamiLovTokenManager is IOrigamiOTokenManager, IWhitelisted {
    event FeeConfigSet(uint16 maxExitFeeBps, uint16 minExitFeeBps, uint24 feeLeverageFactor);

    event UserALRangeSet(uint128 floor, uint128 ceiling);
    event RebalanceALRangeSet(uint128 floor, uint128 ceiling);

    event Rebalance(
        /// @dev positive when Origami supplies the `reserveToken` as new collateral, negative when Origami withdraws collateral
        /// Represented in the units of the `reserveToken` of this lovToken
        int256 collateralChange,

        /// @dev positive when Origami borrows new debt, negative when Origami repays debt
        /// Represented in the units of the `debtToken` of this lovToken
        int256 debtChange,

        /// @dev The Assets/Liabilities ratio before the rebalance
        uint256 alRatioBefore,

        /// @dev The Assets/Liabilities ratio after the rebalance
        uint256 alRatioAfter
    );
    
    error ALTooLow(uint128 ratioBefore, uint128 ratioAfter, uint128 minRatio);
    error ALTooHigh(uint128 ratioBefore, uint128 ratioAfter, uint128 maxRatio);
    error NoAvailableReserves();

    /**
     * @notice Set the minimum fee (in basis points) of lovToken's for deposit and exit,
     * and also the nominal leverage factor applied within the fee calculations
     * @dev feeLeverageFactor has 4dp precision
     */
    function setFeeConfig(uint16 _minDepositFeeBps, uint16 _minExitFeeBps, uint24 _feeLeverageFactor) external;

    /**
     * @notice Set the valid lower and upper bounds of A/L when users deposit/exit into lovToken
     */
    function setUserALRange(uint128 floor, uint128 ceiling) external;

    /**
     * @notice Set the valid range for when a rebalance is not required.
     */
    function setRebalanceALRange(uint128 floor, uint128 ceiling) external;

    /**
     * @notice lovToken contract - eg lovDSR
     */
    function lovToken() external view returns (IOrigamiLovToken);

    /**
     * @notice The min deposit/exit fee and feeLeverageFactor configuration
     * @dev feeLeverageFactor has 4dp precision
     */
    function getFeeConfig() external view returns (uint64 minDepositFeeBps, uint64 minExitFeeBps, uint64 feeLeverageFactor);

    /**
     * @notice The current deposit and exit fee based on market conditions.
     * Fees are the equivalent of burning lovToken shares - benefit remaining vault users
     * @dev represented in basis points
     */
    function getDynamicFeesBps() external view returns (uint256 depositFeeBps, uint256 exitFeeBps);

    /**
     * @notice The valid lower and upper bounds of A/L allowed when users deposit/exit into lovToken
     * @dev Transactions will revert if the resulting A/L is outside of this range
     */
    function userALRange() external view returns (uint128 floor, uint128 ceiling);

    /**
     * @notice The valid range for when a rebalance is not required.
     * When a rebalance occurs, the transaction will revert if the resulting A/L is outside of this range.
     */
    function rebalanceALRange() external view returns (uint128 floor, uint128 ceiling);

    /**
     * @notice The common precision used
     */
    function PRECISION() external view returns (uint256);
    
    /**
     * @notice The reserveToken that the lovToken levers up on
     */
    function reserveToken() external view returns (address);

    /**
     * @notice The token which lovToken borrows to increase the A/L ratio
     */
    function debtToken() external view returns (address);
    
    /**
     * @notice The total balance of reserve tokens this lovToken holds, and also if deployed as collateral
     * in other platforms
     */
    function reservesBalance() external view returns (uint256); 

    /**
     * @notice The debt of the lovToken from the borrower, converted into the reserveToken
     * @dev Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function liabilities(IOrigamiOracle.PriceType debtPriceType) external view returns (uint256);

    /**
     * @notice The current asset/liability (A/L) of this lovToken
     * to `PRECISION` precision
     * @dev = reserves / liabilities
     */
    function assetToLiabilityRatio() external view returns (uint128);

    /**
     * @notice Retrieve the current assets, liabilities and calculate the ratio
     * @dev Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function assetsAndLiabilities(IOrigamiOracle.PriceType debtPriceType) external view returns (
        uint256 assets,
        uint256 liabilities,
        uint256 ratio
    );

    /**
     * @notice The current effective exposure (EE) of this lovToken
     * to `PRECISION` precision
     * @dev = reserves / (reserves - liabilities)
     * Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function effectiveExposure(IOrigamiOracle.PriceType debtPriceType) external view returns (uint128);

    /**
     * @notice The amount of reserves that users may redeem their lovTokens as of this block
     * @dev = reserves - liabilities
     * Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function userRedeemableReserves(IOrigamiOracle.PriceType debtPriceType) external view returns (uint256);

    /**
     * @notice How many reserve tokens would one get given a number of lovToken shares
     * @dev Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function sharesToReserves(uint256 shares, IOrigamiOracle.PriceType debtPriceType) external view returns (uint256);

    /**
     * @notice How many lovToken shares would one get given a number of reserve tokens
     * @dev Use the Oracle `debtPriceType` to value any debt in terms of the reserve token
     */
    function reservesToShares(uint256 reserves, IOrigamiOracle.PriceType debtPriceType) external view returns (uint256);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/investments/util/IOrigamiManagerPausable.sol)

/**
 * @title A mixin to add pause/unpause for Origami manager contracts
 */
interface IOrigamiManagerPausable {
    struct Paused {
        bool investmentsPaused;
        bool exitsPaused;
    }

    event PauserSet(address indexed account, bool canPause);
    event PausedSet(Paused paused);

    /// @notice A set of accounts which are allowed to pause deposits/withdrawals immediately
    /// under emergency
    function pausers(address) external view returns (bool);

    /// @notice Pause/unpause deposits or withdrawals
    /// @dev Can only be called by allowed pausers or governance.
    function setPaused(Paused memory updatedPaused) external;

    /// @notice Allow/Deny an account to pause/unpause deposits or withdrawals
    function setPauser(address account, bool canPause) external;

    /// @notice Check if given account can pause investments/exits
    function isPauser(address account) external view returns (bool canPause);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/investments/IOrigamiOTokenManager.sol)

import { IOrigamiInvestment } from "contracts/interfaces/investments/IOrigamiInvestment.sol";
import { IOrigamiManagerPausable } from "contracts/interfaces/investments/util/IOrigamiManagerPausable.sol";
import { DynamicFees } from "contracts/libraries/DynamicFees.sol";

/**
 * @title Origami oToken Manager (no native ETH/AVAX/etc)
 * @notice The delegated logic to handle deposits/exits into an oToken, and allocating the deposit tokens
 * into the underlying protocol
 */
interface IOrigamiOTokenManager is IOrigamiManagerPausable {
    event InKindFees(DynamicFees.FeeType feeType, uint256 feeBps, uint256 feeAmount);
    
    /**
     * @notice The underlying token this investment wraps. 
     * @dev For informational purposes only, eg integrations/FE
     */
    function baseToken() external view returns (address);

    /**
     * @notice The set of accepted tokens which can be used to invest.
     */
    function acceptedInvestTokens() external view returns (address[] memory);

    /**
     * @notice The set of accepted tokens which can be used to exit into.
     */
    function acceptedExitTokens() external view returns (address[] memory);

    /**
     * @notice Whether new investments are paused.
     */
    function areInvestmentsPaused() external view returns (bool);

    /**
     * @notice Whether exits are temporarily paused.
     */
    function areExitsPaused() external view returns (bool);

    /**
     * @notice Get a quote to buy this oToken using one of the accepted tokens. 
     * @param fromTokenAmount How much of `fromToken` to invest with
     * @param fromToken What ERC20 token to purchase with. This must be one of `acceptedInvestTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received investment amount
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any params required for the underlying investment type.
     * @return investFeeBps Any fees expected when investing with the given token, either from Origami or from the underlying investment.
     */
    function investQuote(
        uint256 fromTokenAmount, 
        address fromToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external view returns (
        IOrigamiInvestment.InvestQuoteData memory quoteData, 
        uint256[] memory investFeeBps
    );

    /** 
      * @notice User buys this Origami investment with an amount of one of the approved ERC20 tokens. 
      * @param account The account to deposit on behalf of
      * @param quoteData The quote data received from investQuote()
      * @return investmentAmount The actual number of this Origami investment tokens received.
      */
    function investWithToken(
        address account,
        IOrigamiInvestment.InvestQuoteData calldata quoteData
    ) external returns (
        uint256 investmentAmount
    );

    /**
     * @notice Get a quote to sell this oToken to receive one of the accepted tokens.
     * @param investmentAmount The number of oTokens to sell
     * @param toToken The token to receive when selling. This must be one of `acceptedExitTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received `toToken`
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any params required for the underlying investment type.
     * @return exitFeeBps Any fees expected when exiting the investment to the nominated token, either from Origami or from the underlying protocol.
     */
    function exitQuote(
        uint256 investmentAmount,
        address toToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external view returns (
        IOrigamiInvestment.ExitQuoteData memory quoteData, 
        uint256[] memory exitFeeBps
    );

    /** 
      * @notice Sell this oToken to receive one of the accepted tokens. 
      * @param account The account to exit on behalf of
      * @param quoteData The quote data received from exitQuote()
      * @param recipient The receiving address of the `toToken`
      * @return toTokenAmount The number of `toToken` tokens received upon selling the oToken
      * @return toBurnAmount The number of oToken to be burnt after exiting this position
      */
    function exitToToken(
        address account,
        IOrigamiInvestment.ExitQuoteData calldata quoteData,
        address recipient
    ) external returns (uint256 toTokenAmount, uint256 toBurnAmount);

    /**
     * @notice The maximum amount of fromToken's that can be deposited
     * taking any other underlying protocol constraints into consideration
     */
    function maxInvest(address fromToken) external view returns (uint256 amount);

    /**
     * @notice The maximum amount of tokens that can be exited into the toToken
     * taking any other underlying protocol constraints into consideration
     */
    function maxExit(address toToken) external view returns (uint256 amount);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/common/oracle/IOrigamiOracle.sol)

import { OrigamiMath } from "contracts/libraries/OrigamiMath.sol";

/**
 * @notice An oracle which returns prices for pairs of assets, where an asset
 * could refer to a token (eg DAI) or a currency (eg USD)
 * Convention is the same as the FX market. Given the DAI/USD pair:
 *   - DAI = Base Asset (LHS of pair)
 *   - USD = Quote Asset (RHS of pair)
 * This price defines how many USD you get if selling 1 DAI
 *
 * Further, an oracle can define two PriceType's:
 *   - SPOT_PRICE: The latest spot price, for example from a chainlink oracle
 *   - HISTORIC_PRICE: An expected (eg 1:1 peg) or calculated historic price (eg TWAP)
 *
 * For assets which do are not tokens (eg USD), an internal address reference will be used
 * since this is for internal purposes only
 */
interface IOrigamiOracle {
    error InvalidPrice(address oracle, int256 price);
    error InvalidOracleData(address oracle);
    error StalePrice(address oracle, uint256 lastUpdatedAt, int256 price);
    error UnknownPriceType(uint8 priceType);
    error BelowMinValidRange(address oracle, uint256 price, uint128 floor);
    error AboveMaxValidRange(address oracle, uint256 price, uint128 ceiling);

    event ValidPriceRangeSet(uint128 validFloor, uint128 validCeiling);

    enum PriceType {
        /// @notice The current spot price of this Oracle
        SPOT_PRICE,

        /// @notice The historic price of this Oracle. 
        /// It may be a fixed expectation (eg DAI/USD would be fixed to 1)
        /// or use a TWAP or some other moving average, etc.
        HISTORIC_PRICE
    }

    /**
     * @dev Wrapped in a struct to remove stack-too-deep constraints
     */
    struct BaseOracleParams {
        string description;
        address baseAssetAddress;
        uint8 baseAssetDecimals;
        address quoteAssetAddress;
        uint8 quoteAssetDecimals;
    }

    /**
     * @notice The address used to reference the baseAsset for amount conversions
     */
    function baseAsset() external view returns (address);

    /**
     * @notice The address used to reference the quoteAsset for amount conversions
     */
    function quoteAsset() external view returns (address);

    /**
     * @notice The number of decimals of precision the price is returned as
     */
    function decimals() external view returns (uint8);

    /**
     * @notice The precision that the cross rate oracle price is returned as: `10^decimals`
     */
    function precision() external view returns (uint256);

    /**
     * @notice When converting from baseAsset<->quoteAsset, the fixed point amounts
     * need to be scaled by this amount.
     */
    function assetScalingFactor() external view returns (uint256);

    /**
     * @notice A human readable description for this oracle
     */
    function description() external view returns (string memory);

    /**
     * @notice Return the latest oracle price, to `decimals` precision
     * @dev This may still revert - eg if deemed stale, div by 0, negative price
     * @param priceType What kind of price - Spot or Historic
     * @param roundingMode Round the price at each intermediate step such that the final price rounds in the specified direction.
     */
    function latestPrice(
        PriceType priceType, 
        OrigamiMath.Rounding roundingMode
    ) external view returns (uint256 price);

    /**
     * @notice Same as `latestPrice()` but for two separate prices from this oracle	
     */
    function latestPrices(
        PriceType priceType1, 
        OrigamiMath.Rounding roundingMode1,
        PriceType priceType2, 
        OrigamiMath.Rounding roundingMode2
    ) external view returns (
        uint256 price1, 
        uint256 price2, 
        address oracleBaseAsset,
        address oracleQuoteAsset
    );

    /**
     * @notice Convert either the baseAsset->quoteAsset or quoteAsset->baseAsset
     * @dev The `fromAssetAmount` needs to be in it's natural fixed point precision (eg USDC=6dp)
     * The `toAssetAmount` will also be returned in it's natural fixed point precision
     */
    function convertAmount(
        address fromAsset,
        uint256 fromAssetAmount,
        PriceType priceType,
        OrigamiMath.Rounding roundingMode
    ) external view returns (uint256 toAssetAmount);

    /**
     * @notice Match whether a pair of assets match the base and quote asset on this oracle, in either order
     */
    function matchAssets(address asset1, address asset2) external view returns (bool);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/common/ITokenPrices.sol)

/// @title Token Prices
/// @notice A utility contract to pull token prices from on-chain.
/// @dev composable functions (uisng encoded function calldata) to build up price formulas
interface ITokenPrices {
    /// @notice How many decimals places are the token prices reported in
    function decimals() external view returns (uint8);

    /// @notice Retrieve the price for a given token.
    /// @dev If not mapped, or an underlying error occurs, FailedPriceLookup will be thrown.
    /// @dev 0x000...0 is the native chain token (ETH/AVAX/etc)
    function tokenPrice(address token) external view returns (uint256 price);

    /// @notice Retrieve the price for a list of tokens.
    /// @dev If any aren't mapped, or an underlying error occurs, FailedPriceLookup will be thrown.
    /// @dev Not particularly gas efficient - wouldn't recommend to use on-chain
    function tokenPrices(address[] memory tokens) external view returns (uint256[] memory prices);
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (interfaces/common/access/Whitelisted.sol)

/**
 * @title Whitelisted abstract contract
 * @notice Functionality to deny non-EOA addresses unless whitelisted
 */
interface IWhitelisted {
    event AllowAllSet(bool value);
    event AllowAccountSet(address indexed account, bool value);

    /**
     * @notice Allow all (both EOAs and contracts) without whitelisting
     */
    function allowAll() external view returns (bool);

    /**
     * @notice A mapping of whitelisted accounts (not required for EOAs)
     */
    function allowedAccounts(address account) external view returns (bool allowed);

    /**
     * @notice Allow all callers without whitelisting
     */
    function setAllowAll(bool value) external;

    /**
     * @notice Set whether a given account is allowed or not
     */
    function setAllowAccount(address account, bool value) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/math/Math.sol)

pragma solidity ^0.8.0;

/**
 * @dev Standard math utilities missing in the Solidity language.
 */
library Math {
    enum Rounding {
        Down, // Toward negative infinity
        Up, // Toward infinity
        Zero // Toward zero
    }

    /**
     * @dev Returns the largest of two numbers.
     */
    function max(uint256 a, uint256 b) internal pure returns (uint256) {
        return a > b ? a : b;
    }

    /**
     * @dev Returns the smallest of two numbers.
     */
    function min(uint256 a, uint256 b) internal pure returns (uint256) {
        return a < b ? a : b;
    }

    /**
     * @dev Returns the average of two numbers. The result is rounded towards
     * zero.
     */
    function average(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b) / 2 can overflow.
        return (a & b) + (a ^ b) / 2;
    }

    /**
     * @dev Returns the ceiling of the division of two numbers.
     *
     * This differs from standard division with `/` in that it rounds up instead
     * of rounding down.
     */
    function ceilDiv(uint256 a, uint256 b) internal pure returns (uint256) {
        // (a + b - 1) / b can overflow on addition, so we distribute.
        return a == 0 ? 0 : (a - 1) / b + 1;
    }

    /**
     * @notice Calculates floor(x * y / denominator) with full precision. Throws if result overflows a uint256 or denominator == 0
     * @dev Original credit to Remco Bloemen under MIT license (https://xn--2-umb.com/21/muldiv)
     * with further edits by Uniswap Labs also under MIT license.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator) internal pure returns (uint256 result) {
        unchecked {
            // 512-bit multiply [prod1 prod0] = x * y. Compute the product mod 2^256 and mod 2^256 - 1, then use
            // use the Chinese Remainder Theorem to reconstruct the 512 bit result. The result is stored in two 256
            // variables such that product = prod1 * 2^256 + prod0.
            uint256 prod0; // Least significant 256 bits of the product
            uint256 prod1; // Most significant 256 bits of the product
            assembly {
                let mm := mulmod(x, y, not(0))
                prod0 := mul(x, y)
                prod1 := sub(sub(mm, prod0), lt(mm, prod0))
            }

            // Handle non-overflow cases, 256 by 256 division.
            if (prod1 == 0) {
                // Solidity will revert if denominator == 0, unlike the div opcode on its own.
                // The surrounding unchecked block does not change this fact.
                // See https://docs.soliditylang.org/en/latest/control-structures.html#checked-or-unchecked-arithmetic.
                return prod0 / denominator;
            }

            // Make sure the result is less than 2^256. Also prevents denominator == 0.
            require(denominator > prod1, "Math: mulDiv overflow");

            ///////////////////////////////////////////////
            // 512 by 256 division.
            ///////////////////////////////////////////////

            // Make division exact by subtracting the remainder from [prod1 prod0].
            uint256 remainder;
            assembly {
                // Compute remainder using mulmod.
                remainder := mulmod(x, y, denominator)

                // Subtract 256 bit number from 512 bit number.
                prod1 := sub(prod1, gt(remainder, prod0))
                prod0 := sub(prod0, remainder)
            }

            // Factor powers of two out of denominator and compute largest power of two divisor of denominator. Always >= 1.
            // See https://cs.stackexchange.com/q/138556/92363.

            // Does not overflow because the denominator cannot be zero at this stage in the function.
            uint256 twos = denominator & (~denominator + 1);
            assembly {
                // Divide denominator by twos.
                denominator := div(denominator, twos)

                // Divide [prod1 prod0] by twos.
                prod0 := div(prod0, twos)

                // Flip twos such that it is 2^256 / twos. If twos is zero, then it becomes one.
                twos := add(div(sub(0, twos), twos), 1)
            }

            // Shift in bits from prod1 into prod0.
            prod0 |= prod1 * twos;

            // Invert denominator mod 2^256. Now that denominator is an odd number, it has an inverse modulo 2^256 such
            // that denominator * inv = 1 mod 2^256. Compute the inverse by starting with a seed that is correct for
            // four bits. That is, denominator * inv = 1 mod 2^4.
            uint256 inverse = (3 * denominator) ^ 2;

            // Use the Newton-Raphson iteration to improve the precision. Thanks to Hensel's lifting lemma, this also works
            // in modular arithmetic, doubling the correct bits in each step.
            inverse *= 2 - denominator * inverse; // inverse mod 2^8
            inverse *= 2 - denominator * inverse; // inverse mod 2^16
            inverse *= 2 - denominator * inverse; // inverse mod 2^32
            inverse *= 2 - denominator * inverse; // inverse mod 2^64
            inverse *= 2 - denominator * inverse; // inverse mod 2^128
            inverse *= 2 - denominator * inverse; // inverse mod 2^256

            // Because the division is now exact we can divide by multiplying with the modular inverse of denominator.
            // This will give us the correct result modulo 2^256. Since the preconditions guarantee that the outcome is
            // less than 2^256, this is the final result. We don't need to compute the high bits of the result and prod1
            // is no longer required.
            result = prod0 * inverse;
            return result;
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision, following the selected rounding direction.
     */
    function mulDiv(uint256 x, uint256 y, uint256 denominator, Rounding rounding) internal pure returns (uint256) {
        uint256 result = mulDiv(x, y, denominator);
        if (rounding == Rounding.Up && mulmod(x, y, denominator) > 0) {
            result += 1;
        }
        return result;
    }

    /**
     * @dev Returns the square root of a number. If the number is not a perfect square, the value is rounded down.
     *
     * Inspired by Henry S. Warren, Jr.'s "Hacker's Delight" (Chapter 11).
     */
    function sqrt(uint256 a) internal pure returns (uint256) {
        if (a == 0) {
            return 0;
        }

        // For our first guess, we get the biggest power of 2 which is smaller than the square root of the target.
        //
        // We know that the "msb" (most significant bit) of our target number `a` is a power of 2 such that we have
        // `msb(a) <= a < 2*msb(a)`. This value can be written `msb(a)=2**k` with `k=log2(a)`.
        //
        // This can be rewritten `2**log2(a) <= a < 2**(log2(a) + 1)`
        // → `sqrt(2**k) <= sqrt(a) < sqrt(2**(k+1))`
        // → `2**(k/2) <= sqrt(a) < 2**((k+1)/2) <= 2**(k/2 + 1)`
        //
        // Consequently, `2**(log2(a) / 2)` is a good first approximation of `sqrt(a)` with at least 1 correct bit.
        uint256 result = 1 << (log2(a) >> 1);

        // At this point `result` is an estimation with one bit of precision. We know the true value is a uint128,
        // since it is the square root of a uint256. Newton's method converges quadratically (precision doubles at
        // every iteration). We thus need at most 7 iteration to turn our partial result with one bit of precision
        // into the expected uint128 result.
        unchecked {
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            result = (result + a / result) >> 1;
            return min(result, a / result);
        }
    }

    /**
     * @notice Calculates sqrt(a), following the selected rounding direction.
     */
    function sqrt(uint256 a, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = sqrt(a);
            return result + (rounding == Rounding.Up && result * result < a ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 2, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 128;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 64;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 32;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 16;
            }
            if (value >> 8 > 0) {
                value >>= 8;
                result += 8;
            }
            if (value >> 4 > 0) {
                value >>= 4;
                result += 4;
            }
            if (value >> 2 > 0) {
                value >>= 2;
                result += 2;
            }
            if (value >> 1 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 2, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log2(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log2(value);
            return result + (rounding == Rounding.Up && 1 << result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 10, rounded down, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >= 10 ** 64) {
                value /= 10 ** 64;
                result += 64;
            }
            if (value >= 10 ** 32) {
                value /= 10 ** 32;
                result += 32;
            }
            if (value >= 10 ** 16) {
                value /= 10 ** 16;
                result += 16;
            }
            if (value >= 10 ** 8) {
                value /= 10 ** 8;
                result += 8;
            }
            if (value >= 10 ** 4) {
                value /= 10 ** 4;
                result += 4;
            }
            if (value >= 10 ** 2) {
                value /= 10 ** 2;
                result += 2;
            }
            if (value >= 10 ** 1) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 10, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log10(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log10(value);
            return result + (rounding == Rounding.Up && 10 ** result < value ? 1 : 0);
        }
    }

    /**
     * @dev Return the log in base 256, rounded down, of a positive value.
     * Returns 0 if given 0.
     *
     * Adding one to the result gives the number of pairs of hex symbols needed to represent `value` as a hex string.
     */
    function log256(uint256 value) internal pure returns (uint256) {
        uint256 result = 0;
        unchecked {
            if (value >> 128 > 0) {
                value >>= 128;
                result += 16;
            }
            if (value >> 64 > 0) {
                value >>= 64;
                result += 8;
            }
            if (value >> 32 > 0) {
                value >>= 32;
                result += 4;
            }
            if (value >> 16 > 0) {
                value >>= 16;
                result += 2;
            }
            if (value >> 8 > 0) {
                result += 1;
            }
        }
        return result;
    }

    /**
     * @dev Return the log in base 256, following the selected rounding direction, of a positive value.
     * Returns 0 if given 0.
     */
    function log256(uint256 value, Rounding rounding) internal pure returns (uint256) {
        unchecked {
            uint256 result = log256(value);
            return result + (rounding == Rounding.Up && 1 << (result << 3) < value ? 1 : 0);
        }
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (common/MintableToken.sol)

import { ERC20 } from "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import { ERC20Permit } from "@openzeppelin/contracts/token/ERC20/extensions/ERC20Permit.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import { IMintableToken } from "contracts/interfaces/common/IMintableToken.sol";
import { CommonEventsAndErrors } from "contracts/libraries/CommonEventsAndErrors.sol";
import { OrigamiElevatedAccess } from "contracts/common/access/OrigamiElevatedAccess.sol";

/// @notice An ERC20 token which can be minted/burnt by approved accounts
abstract contract MintableToken is IMintableToken, ERC20Permit, OrigamiElevatedAccess {
    using SafeERC20 for IERC20;

    /// @notice A set of addresses which are approved to mint/burn
    mapping(address account => bool canMint) internal _minters;

    event AddedMinter(address indexed account);
    event RemovedMinter(address indexed account);

    function isMinter(address account) external view returns (bool) {
        return _minters[account];
    }

    error CannotMintOrBurn(address caller);

    constructor(string memory _name, string memory _symbol, address _initialOwner)
        ERC20(_name, _symbol) 
        ERC20Permit(_name) 
        OrigamiElevatedAccess(_initialOwner)
    {}

    function mint(address _to, uint256 _amount) external override {
        if (!_minters[msg.sender]) revert CannotMintOrBurn(msg.sender);
        _mint(_to, _amount);
    }

    function burn(address account, uint256 amount) external override {
        if (!_minters[msg.sender]) revert CannotMintOrBurn(msg.sender);
        _burn(account, amount);
    }

    function addMinter(address account) external onlyElevatedAccess {
        _minters[account] = true;
        emit AddedMinter(account);
    }

    function removeMinter(address account) external onlyElevatedAccess {
        _minters[account] = false;
        emit RemovedMinter(account);
    }

    /**
     * @notice Recover any token -- this contract should not ordinarily hold any tokens.
     * @param token Token to recover
     * @param to Recipient address
     * @param amount Amount to recover
     */
    function recoverToken(address token, address to, uint256 amount) external virtual onlyElevatedAccess {
        emit CommonEventsAndErrors.TokenRecovered(to, token, amount);
        IERC20(token).safeTransfer(to, amount);
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (common/access/OrigamiElevatedAccessBase.sol)

import { OrigamiElevatedAccessBase } from "contracts/common/access/OrigamiElevatedAccessBase.sol";

/**
 * @notice Inherit to add Owner roles for DAO elevated access.
 */ 
abstract contract OrigamiElevatedAccess is OrigamiElevatedAccessBase {
    constructor(address initialOwner) {
        _init(initialOwner);
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (common/access/OrigamiElevatedAccessBase.sol)

import { IOrigamiElevatedAccess } from "contracts/interfaces/common/access/IOrigamiElevatedAccess.sol";
import { CommonEventsAndErrors } from "contracts/libraries/CommonEventsAndErrors.sol";

/**
 * @notice Inherit to add Owner roles for DAO elevated access.
 */ 
abstract contract OrigamiElevatedAccessBase is IOrigamiElevatedAccess {
    /**
     * @notice The address of the current owner.
     */ 
    address public override owner;

    /**
     * @notice Explicit approval for an address to execute a function.
     * allowedCaller => function selector => true/false
     */
    mapping(address => mapping(bytes4 => bool)) public override explicitFunctionAccess;

    /// @dev Track proposed owner
    address private _proposedNewOwner;

    /// @dev propose this as the new owner before revoking, for 2 step approval
    address private constant PROPOSED_DEAD_ADDRESS = 0x000000000000000000000000000000000000dEaD;

    function _init(address initialOwner) internal {
        if (owner != address(0)) revert CommonEventsAndErrors.InvalidAccess();
        if (initialOwner == address(0)) revert CommonEventsAndErrors.InvalidAddress(address(0));
        owner = initialOwner;
    }

    /**
     * @notice Revoke ownership. 
     * @dev To enforce a two-step revoke, it must first propose to 0x000...dEaD prior to calling.
     * This cannot be undone.
     */
    function revokeOwnership() external override onlyElevatedAccess {
        if (_proposedNewOwner != PROPOSED_DEAD_ADDRESS) revert CommonEventsAndErrors.InvalidAddress(_proposedNewOwner);

        emit NewOwnerAccepted(owner, address(0));
        owner = address(0);
    }

    /**
     * @notice Proposes a new Owner.
     * Can only be called by the current owner
     */
    function proposeNewOwner(address account) external override onlyElevatedAccess {
        if (account == address(0)) revert CommonEventsAndErrors.InvalidAddress(account);
        emit NewOwnerProposed(owner, _proposedNewOwner, account);
        _proposedNewOwner = account;
    }

    /**
     * @notice Caller accepts the role as new Owner.
     * Can only be called by the proposed owner
     */
    function acceptOwner() external override {
        if (msg.sender != _proposedNewOwner) revert CommonEventsAndErrors.InvalidAccess();

        emit NewOwnerAccepted(owner, msg.sender);
        owner = msg.sender;
        delete _proposedNewOwner;
    }

    /**
     * @notice Grant `allowedCaller` the rights to call the function selectors in the access list.
     * @dev fnSelector == bytes4(keccak256("fn(argType1,argType2,...)"))
     */
    function setExplicitAccess(address allowedCaller, ExplicitAccess[] calldata access) external override onlyElevatedAccess {
        if (allowedCaller == address(0)) revert CommonEventsAndErrors.InvalidAddress(allowedCaller);
        ExplicitAccess memory _access;
        for (uint256 i; i < access.length; ++i) {
            _access = access[i];
            emit ExplicitAccessSet(allowedCaller, _access.fnSelector, _access.allowed);
            explicitFunctionAccess[allowedCaller][_access.fnSelector] = _access.allowed;
        }
    }

    function isElevatedAccess(address caller, bytes4 fnSelector) internal view returns (bool) {
        return (
            caller == owner || 
            explicitFunctionAccess[caller][fnSelector]
        );
    }

    /**
     * @notice The owner is allowed to call, or if explicit access has been given to the caller.
     * @dev Important: Only for use when called from an *external* contract. 
     * If a function with this modifier is called internally then the `msg.sig` 
     * will still refer to the top level externally called function.
     */
    modifier onlyElevatedAccess() {
        if (!isElevatedAccess(msg.sender, msg.sig)) revert CommonEventsAndErrors.InvalidAccess();
        _;
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (investments/OrigamiInvestment.sol)

import { IOrigamiInvestment } from "contracts/interfaces/investments/IOrigamiInvestment.sol";
import { MintableToken } from "contracts/common/MintableToken.sol";
import { ReentrancyGuard } from "@openzeppelin/contracts/security/ReentrancyGuard.sol";

/**
 * @title Origami Investment
 * @notice Users invest in the underlying protocol and receive a number of this Origami investment in return.
 * Origami will apply the accepted investment token into the underlying protocol in the most optimal way.
 */
abstract contract OrigamiInvestment is IOrigamiInvestment, MintableToken, ReentrancyGuard {
    string public constant API_VERSION = "0.2.0";
    
    /**
     * @notice Track the depoyed version of this contract. 
     */
    function apiVersion() external override pure returns (string memory) {
        return API_VERSION;
    }

    constructor(
        string memory _name,
        string memory _symbol,
        address _initialOwner
    ) MintableToken(_name, _symbol, _initialOwner) {
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (investments/lovToken/OrigamiLovToken.sol)

import { SafeERC20 } from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import { IERC20 } from "@openzeppelin/contracts/token/ERC20/IERC20.sol";

import { IOrigamiOTokenManager } from "contracts/interfaces/investments/IOrigamiOTokenManager.sol";
import { IOrigamiLovToken } from "contracts/interfaces/investments/lovToken/IOrigamiLovToken.sol";
import { IOrigamiLovTokenManager } from "contracts/interfaces/investments/lovToken/managers/IOrigamiLovTokenManager.sol";
import { ITokenPrices } from "contracts/interfaces/common/ITokenPrices.sol";
import { IOrigamiOracle } from "contracts/interfaces/common/oracle/IOrigamiOracle.sol";

import { CommonEventsAndErrors } from "contracts/libraries/CommonEventsAndErrors.sol";
import { OrigamiInvestment } from "contracts/investments/OrigamiInvestment.sol";
import { OrigamiMath } from "contracts/libraries/OrigamiMath.sol";

/**
 * @title Origami lovToken
 * 
 * @notice Users deposit with an accepted token and are minted lovTokens
 * Origami will rebalance to lever up on the underlying reserve token, targetting a
 * specific A/L (assets / liabilities) range
 *
 * @dev The logic on how to handle the specific deposits/exits for each lovToken is delegated
 * to a manager contract
 */
contract OrigamiLovToken is IOrigamiLovToken, OrigamiInvestment {
    using SafeERC20 for IERC20;

    /**
     * @notice The Origami contract managing the deposits/exits and the application of
     * the deposit tokens into the underlying protocol
     */
    IOrigamiLovTokenManager internal lovManager;

    /**
     * @notice The address used to collect the Origami performance fees.
     */
    address public override feeCollector;

    /**
     * @notice The annual performance fee which Origami takes from harvested rewards before compounding into reserves.
     * @dev Represented in basis points
     */
    uint48 public override annualPerformanceFeeBps;

    /**
     * @notice The last time the performance fee was collected
     */
    uint48 public override lastPerformanceFeeTime;

    /**
     * @notice The helper contract to retrieve Origami USD prices
     * @dev Required for off-chain/subgraph integration
     */
    ITokenPrices public override tokenPrices;

    /**
     * @notice The maximum allowed supply of this token for user investments
     * @dev The actual totalSupply() may be greater than `maxTotalSupply`
     * in order to start organically shrinking supply or from performance fees
     */
    uint256 public override maxTotalSupply;

    constructor(
        address _initialOwner,
        string memory _name,
        string memory _symbol,
        uint48 _annualPerformanceFeeBps,
        address _feeCollector,
        address _tokenPrices,
        uint256 _maxTotalSupply
    ) OrigamiInvestment(_name, _symbol, _initialOwner) {
        if (_annualPerformanceFeeBps > OrigamiMath.BASIS_POINTS_DIVISOR) revert CommonEventsAndErrors.InvalidParam();
        annualPerformanceFeeBps = _annualPerformanceFeeBps;
        lastPerformanceFeeTime = uint48(block.timestamp);
        feeCollector = _feeCollector;
        tokenPrices = ITokenPrices(_tokenPrices);
        maxTotalSupply = _maxTotalSupply;
    }

    /**
     * @notice Set the Origami lovToken Manager.
     */
    function setManager(address _manager) external override onlyElevatedAccess {
        if (_manager == address(0)) revert CommonEventsAndErrors.InvalidAddress(address(0));
        emit ManagerSet(_manager);
        lovManager = IOrigamiLovTokenManager(_manager);
    }

    /**
     * @notice Set the vault annual performance fee
     * @dev Represented in basis points
     */
    function setAnnualPerformanceFee(uint48 _annualPerformanceFeeBps) external override onlyElevatedAccess {
        if (_annualPerformanceFeeBps > OrigamiMath.BASIS_POINTS_DIVISOR) revert CommonEventsAndErrors.InvalidParam();

        // Harvest on the old rate prior to updating the fee
        _collectPerformanceFees();

        emit PerformanceFeeSet(_annualPerformanceFeeBps);
        annualPerformanceFeeBps = _annualPerformanceFeeBps;
    }

    /**
     * @notice Set the max total supply allowed for investments into this lovToken
     */
    function setMaxTotalSupply(uint256 _maxTotalSupply) external onlyElevatedAccess {
        maxTotalSupply = _maxTotalSupply;
        emit MaxTotalSupplySet(_maxTotalSupply);
    }

    /**
     * @notice Set the Origami performance fee collector address
     */
    function setFeeCollector(address _feeCollector) external override onlyElevatedAccess {
        if (_feeCollector == address(0)) revert CommonEventsAndErrors.InvalidAddress(address(0));
        emit FeeCollectorSet(_feeCollector);
        feeCollector = _feeCollector;
    }

    /**
     * @notice Set the helper to calculate current off-chain/subgraph integration
     */
    function setTokenPrices(address _tokenPrices) external override onlyElevatedAccess {
        if (_tokenPrices == address(0)) revert CommonEventsAndErrors.InvalidAddress(address(0));
        emit TokenPricesSet(_tokenPrices);
        tokenPrices = ITokenPrices(_tokenPrices);
    }
    
    /** 
      * @notice User buys this lovToken with an amount of one of the approved ERC20 tokens
      * @param quoteData The quote data received from investQuote()
      * @return investmentAmount The actual number of receipt tokens received, inclusive of any fees.
      */
    function investWithToken(
        InvestQuoteData calldata quoteData
    ) external virtual override nonReentrant returns (uint256 investmentAmount) {
        if (quoteData.fromTokenAmount == 0) revert CommonEventsAndErrors.ExpectedNonZero();

        // Send the investment token to the manager
        IOrigamiLovTokenManager _manager = lovManager;
        IERC20(quoteData.fromToken).safeTransferFrom(msg.sender, address(_manager), quoteData.fromTokenAmount);
        investmentAmount = _manager.investWithToken(msg.sender, quoteData);

        emit Invested(msg.sender, quoteData.fromTokenAmount, quoteData.fromToken, investmentAmount);

        // Mint the lovToken for the user
        if (investmentAmount != 0) {
            _mint(msg.sender, investmentAmount);
            if (totalSupply() > maxTotalSupply) {
                revert CommonEventsAndErrors.BreachedMaxTotalSupply(totalSupply(), maxTotalSupply);
            }
        }
    }

    /** 
      * @notice Sell this lovToken to receive one of the accepted exit tokens. 
      * @param quoteData The quote data received from exitQuote()
      * @param recipient The receiving address of the `toToken`
      * @return toTokenAmount The number of `toToken` tokens received upon selling the lovToken.
      */
    function exitToToken(
        ExitQuoteData calldata quoteData,
        address recipient
    ) external virtual override nonReentrant returns (
        uint256 toTokenAmount
    ) {
        if (quoteData.investmentTokenAmount == 0) revert CommonEventsAndErrors.ExpectedNonZero();
        if (recipient == address(0)) revert CommonEventsAndErrors.InvalidAddress(recipient);

        uint256 lovTokenToBurn;
        (toTokenAmount, lovTokenToBurn) = lovManager.exitToToken(msg.sender, quoteData, recipient);
        
        emit Exited(msg.sender, quoteData.investmentTokenAmount, quoteData.toToken, toTokenAmount, recipient);
        
        // Burn the lovToken
        if (lovTokenToBurn != 0) {
            _burn(msg.sender, lovTokenToBurn);
        }
    }

    /** 
      * @notice Unsupported - cannot invest in this lovToken to the native chain asset (eg ETH)
      * @dev In future, if required, a separate version which does support this flow will be added
      */
    function investWithNative(
        InvestQuoteData calldata /*quoteData*/
    ) external payable virtual override returns (uint256) {
        revert Unsupported();
    }

    /** 
      * @notice Unsupported - cannot exit this lovToken to the native chain asset (eg ETH)
      * @dev In future, if required, a separate version which does support this flow will be added
      */
    function exitToNative(
        ExitQuoteData calldata /*quoteData*/, address payable /*recipient*/
    ) external virtual override returns (uint256 /*nativeAmount*/) {
        revert Unsupported();
    }

    /** 
     * @notice Collect the performance fees to the Origami Treasury
     */
    function collectPerformanceFees() external override onlyElevatedAccess returns (uint256 amount) {
        return _collectPerformanceFees();
    }

    /**
     * @notice The Origami contract managing the deposits/exits and the application of
     * the deposit tokens into the underlying protocol
     */
    function manager() external view returns (IOrigamiOTokenManager) {
        return IOrigamiOTokenManager(address(lovManager));
    }

    /**
     * @notice The token used to track reserves for this investment
     */
    function reserveToken() external view returns (address) {
        return lovManager.reserveToken();
    }

    /**
     * @notice The underlying reserve token this investment wraps. 
     */
    function baseToken() external virtual override view returns (address) {
        return address(lovManager.baseToken());
    }

    /**
     * @notice The set of accepted tokens which can be used to deposit.
     */
    function acceptedInvestTokens() external virtual override view returns (address[] memory) {
        return lovManager.acceptedInvestTokens();
    }

    /**
     * @notice The set of accepted tokens which can be used to exit into.
     */
    function acceptedExitTokens() external virtual override view returns (address[] memory) {
        return lovManager.acceptedExitTokens();
    }
        
    /**
     * @notice Whether new investments are paused.
     */
    function areInvestmentsPaused() external virtual override view returns (bool) {
        return lovManager.areInvestmentsPaused();
    }

    /**
     * @notice Whether exits are temporarily paused.
     */
    function areExitsPaused() external virtual override view returns (bool) {
        return lovManager.areExitsPaused();
    }

    /**
     * @notice Get a quote to buy the lovToken using an accepted deposit token.
     * @param fromTokenAmount How much of the deposit token to invest with
     * @param fromToken What ERC20 token to purchase with. This must be one of `acceptedInvestTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received investment amount
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any params required for the underlying investment type.
     * @return investFeeBps Any fees expected when investing with the given token, either from Origami or from the underlying investment.
     */
    function investQuote(
        uint256 fromTokenAmount,
        address fromToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external virtual override view returns (
        InvestQuoteData memory quoteData, 
        uint256[] memory investFeeBps
    ) {
        (quoteData, investFeeBps) = lovManager.investQuote(fromTokenAmount, fromToken, maxSlippageBps, deadline);
    }

    /**
     * @notice Get a quote to sell this lovToken to receive one of the accepted exit tokens
     * @param investmentTokenAmount The amount of this lovToken to sell
     * @param toToken The token to receive when selling. This must be one of `acceptedExitTokens`
     * @param maxSlippageBps The maximum acceptable slippage of the received `toToken`
     * @param deadline The maximum deadline to execute the exit.
     * @return quoteData The quote data, including any other quote params required for this investment type.
     * @return exitFeeBps Any fees expected when exiting the investment to the nominated token, either from Origami or from the underlying investment.
     */
    function exitQuote(
        uint256 investmentTokenAmount, 
        address toToken,
        uint256 maxSlippageBps,
        uint256 deadline
    ) external virtual override view returns (
        ExitQuoteData memory quoteData, 
        uint256[] memory exitFeeBps
    ) {
        (quoteData, exitFeeBps) = lovManager.exitQuote(investmentTokenAmount, toToken, maxSlippageBps, deadline);
    }

    /**
     * @notice How many reserve tokens would one get given a number of lovToken shares
     * @dev This will use the `SPOT_PRICE` to value any debt in terms of the reserve token
     */
    function sharesToReserves(uint256 shares) external override view returns (uint256) {
        return lovManager.sharesToReserves(shares, IOrigamiOracle.PriceType.SPOT_PRICE);
    }

    /**
     * @notice How many lovToken shares would one get given a number of reserve tokens
     * @dev This will use the Oracle `SPOT_PRICE` to value any debt in terms of the reserve token
     */
    function reservesToShares(uint256 reserves) external override view returns (uint256) {
        return lovManager.reservesToShares(reserves, IOrigamiOracle.PriceType.SPOT_PRICE);
    }

    /**
     * @notice How many reserve tokens would one get given a single share, as of now
     * @dev This will use the Oracle 'HISTORIC_PRICE' to value any debt in terms of the reserve token
     */
    function reservesPerShare() external override view returns (uint256) {
        return lovManager.sharesToReserves(10 ** decimals(), IOrigamiOracle.PriceType.HISTORIC_PRICE);
    }
    
    /**
     * @notice The current amount of available reserves for redemptions
     * @dev This will use the Oracle `SPOT_PRICE` to value any debt in terms of the reserve token
     */
    function totalReserves() external override view returns (uint256) {
        return lovManager.userRedeemableReserves(IOrigamiOracle.PriceType.SPOT_PRICE);
    }

    /**
     * @notice Retrieve the current assets, liabilities and calculate the ratio
     * @dev This will use the Oracle `SPOT_PRICE` to value any debt in terms of the reserve token
     */
    function assetsAndLiabilities() external override view returns (
        uint256 /*assets*/,
        uint256 /*liabilities*/,
        uint256 /*ratio*/
    ) {
        return lovManager.assetsAndLiabilities(IOrigamiOracle.PriceType.SPOT_PRICE);
    }

    /**
     * @notice The current effective exposure (EE) of this lovToken
     * to `PRECISION` precision
     * @dev = reserves / (reserves - liabilities)
     * This will use the Oracle `SPOT_PRICE` to value any debt in terms of the reserve token
     */
    function effectiveExposure() external override view returns (uint128 /*effectiveExposure*/) {
        return lovManager.effectiveExposure(IOrigamiOracle.PriceType.SPOT_PRICE);
    }

    /**
     * @notice The valid lower and upper bounds of A/L allowed when users deposit/exit into lovToken
     * @dev Transactions will revert if the resulting A/L is outside of this range
     */
    function userALRange() external override view returns (uint128 /*floor*/, uint128 /*ceiling*/) {
        return lovManager.userALRange();
    }

    /**
     * @notice The current deposit and exit fee based on market conditions.
     * Fees are the equivalent of burning lovToken shares - benefit remaining vault users
     * @dev represented in basis points
     */
    function getDynamicFeesBps() external override view returns (uint256 depositFeeBps, uint256 exitFeeBps) {
        return lovManager.getDynamicFeesBps();
    }

    /**
     * @notice The maximum amount of fromToken's that can be deposited
     * taking any other underlying protocol constraints into consideration
     */
    function maxInvest(address fromToken) external override view returns (uint256) {
        return lovManager.maxInvest(fromToken);
    }

    /**
     * @notice The maximum amount of tokens that can be exited into the toToken
     * taking any other underlying protocol constraints into consideration
     */
    function maxExit(address toToken) external override view returns (uint256) {
        return lovManager.maxExit(toToken);
    }
    
    /**
     * @notice The accrued performance fee amount which would be minted as of now, 
     * based on the total supply
     */
    function accruedPerformanceFee() public override view returns (uint256) {
        // totalSupply * feeBps * timeDelta / 365 days / 10_000
        // Round down (protocol takes less of a fee)
        uint256 _timeDelta = block.timestamp - lastPerformanceFeeTime;
        return OrigamiMath.mulDiv(
            totalSupply(), 
            annualPerformanceFeeBps * _timeDelta, 
            OrigamiMath.BASIS_POINTS_DIVISOR * 365 days, 
            OrigamiMath.Rounding.ROUND_DOWN
        );
    }

    function _collectPerformanceFees() internal returns (uint256 amount) {
        amount = accruedPerformanceFee();
        if (amount != 0) {
            address _feeCollector = feeCollector;
            emit PerformanceFeesCollected(_feeCollector, amount);

            // Do not need to check vs maxTotalSupply here as it is
            // only for new user investments
            _mint(_feeCollector, amount);
        }

        lastPerformanceFeeTime = uint48(block.timestamp);
    }
}

pragma solidity 0.8.19;
// SPDX-License-Identifier: AGPL-3.0-or-later
// Origami (libraries/OrigamiMath.sol)

import { mulDiv as prbMulDiv, PRBMath_MulDiv_Overflow } from "@prb/math/src/Common.sol";
import { CommonEventsAndErrors } from "contracts/libraries/CommonEventsAndErrors.sol";

/**
 * @notice Utilities to operate on fixed point math multipliation and division
 * taking rounding into consideration
 */
library OrigamiMath {
    enum Rounding {
        ROUND_DOWN,
        ROUND_UP
    }

    uint256 public constant BASIS_POINTS_DIVISOR = 10_000;

    function scaleUp(uint256 amount, uint256 scalar) internal pure returns (uint256) {
        // Special case for scalar == 1, as it's common for token amounts to not need
        // scaling if decimal places are the same
        return scalar == 1 ? amount : amount * scalar;
    }

    function scaleDown(
        uint256 amount, 
        uint256 scalar, 
        Rounding roundingMode
    ) internal pure returns (uint256 result) {
        // Special case for scalar == 1, as it's common for token amounts to not need
        // scaling if decimal places are the same
        unchecked {
            if (scalar == 1) {
                result = amount;
            } else if (roundingMode == Rounding.ROUND_DOWN) {
                result = amount / scalar;
            } else {
                // ROUND_UP uses the same logic as OZ Math.ceilDiv()
                result = amount == 0 ? 0 : (amount - 1) / scalar + 1;
            }
        }
    }

    /**
     * @notice Calculates x * y / denominator with full precision,
     * rounding up
     */
    function mulDiv(
        uint256 x, 
        uint256 y, 
        uint256 denominator,
        Rounding roundingMode
    ) internal pure returns (uint256 result) {
        result = prbMulDiv(x, y, denominator);
        if (roundingMode == Rounding.ROUND_UP) {
            if (mulmod(x, y, denominator) != 0) {
                if (result < type(uint256).max) {
                    unchecked {
                        result = result + 1;
                    }
                } else {
                    revert PRBMath_MulDiv_Overflow(x, y, denominator);
                }
            }
        }
    }

    function subtractBps(
        uint256 inputAmount, 
        uint256 basisPoints,
        Rounding roundingMode
    ) internal pure returns (uint256 result) {
        uint256 numeratorBps;
        unchecked {
            numeratorBps = BASIS_POINTS_DIVISOR - basisPoints;
        }

        result = basisPoints < BASIS_POINTS_DIVISOR
            ? mulDiv(
                inputAmount,
                numeratorBps, 
                BASIS_POINTS_DIVISOR, 
                roundingMode
            ) : 0;
    }

    function addBps(
        uint256 inputAmount,
        uint256 basisPoints,
        Rounding roundingMode
    ) internal pure returns (uint256 result) {
        uint256 numeratorBps;
        unchecked {
            numeratorBps = BASIS_POINTS_DIVISOR + basisPoints;
        }

        // Round up for max amounts out expected
        result = mulDiv(
            inputAmount,
            numeratorBps, 
            BASIS_POINTS_DIVISOR, 
            roundingMode
        );
    }

    /**
     * @notice Split the `inputAmount` into two parts based on the `basisPoints` fraction.
     * eg: 3333 BPS (33.3%) can be used to split an input amount of 600 into: (result=400, removed=200).
     * @dev The rounding mode is applied to the `result`
     */
    function splitSubtractBps(
        uint256 inputAmount, 
        uint256 basisPoints,
        Rounding roundingMode
    ) internal pure returns (uint256 result, uint256 removed) {
        result = subtractBps(inputAmount, basisPoints, roundingMode);
        unchecked {
            removed = inputAmount - result;
        }
    }

    /**
     * @notice Reverse the fractional amount of an input.
     * eg: For 3333 BPS (33.3%) and the remainder=400, the result is 600
     */
    function inverseSubtractBps(
        uint256 remainderAmount, 
        uint256 basisPoints,
        Rounding roundingMode
    ) internal pure returns (uint256 result) {
        if (basisPoints == 0) return remainderAmount; // gas shortcut for 0
        if (basisPoints >= BASIS_POINTS_DIVISOR) revert CommonEventsAndErrors.InvalidParam();

        uint256 denominatorBps;
        unchecked {
            denominatorBps = BASIS_POINTS_DIVISOR - basisPoints;
        }
        result = mulDiv(
            remainderAmount,
            BASIS_POINTS_DIVISOR, 
            denominatorBps, 
            roundingMode
        );
    }

    /**
     * @notice Calculate the relative difference of a value to a reference
     * @dev `value` and `referenceValue` must have the same precision
     * The denominator is always the referenceValue
     */
    function relativeDifferenceBps(
        uint256 value,
        uint256 referenceValue,
        Rounding roundingMode
    ) internal pure returns (uint256) {
        if (referenceValue == 0) revert CommonEventsAndErrors.InvalidParam();

        uint256 absDelta;
        unchecked {
            absDelta = value < referenceValue
                ? referenceValue - value
                : value - referenceValue;
        }

        return mulDiv(
            absDelta,
            BASIS_POINTS_DIVISOR,
            referenceValue,
            roundingMode
        );
    }
}