// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev The ETH balance of the account is not enough to perform the operation.
     */
    error AddressInsufficientBalance(address account);

    /**
     * @dev There's no code at `target` (it is not a contract).
     */
    error AddressEmptyCode(address target);

    /**
     * @dev A call to an address target failed. The target may have reverted.
     */
    error FailedInnerCall();

    /**
     * @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/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

        (bool success, ) = recipient.call{value: amount}("");
        if (!success) {
            revert FailedInnerCall();
        }
    }

    /**
     * @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 or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * 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.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @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`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

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

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and reverts if the target
     * was not a contract or bubbling up the revert reason (falling back to {FailedInnerCall}) in case of an
     * unsuccessful call.
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata
    ) internal view returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            // only check if target is a contract if the call was successful and the return data is empty
            // otherwise we already know that it was a contract
            if (returndata.length == 0 && target.code.length == 0) {
                revert AddressEmptyCode(target);
            }
            return returndata;
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and reverts if it wasn't, either by bubbling the
     * revert reason or with a default {FailedInnerCall} error.
     */
    function verifyCallResult(bool success, bytes memory returndata) internal pure returns (bytes memory) {
        if (!success) {
            _revert(returndata);
        } else {
            return returndata;
        }
    }

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) 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 FailedInnerCall();
        }
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

library Constants {
    address internal constant CRVUSD_ADDRESS = 0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E;
    address internal constant USDC_ADDRESS = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
    address internal constant USDT_ADDRESS = 0xdAC17F958D2ee523a2206206994597C13D831ec7;
    address internal constant DAI_ADDRESS = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
    address internal constant FRX_ETH_ADDRESS = 0x5E8422345238F34275888049021821E8E08CAa1f;
    address internal constant WETH_ADDRESS = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address internal constant CVX_ADDRESS = 0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B;
    address internal constant CRV_ADDRESS = 0xD533a949740bb3306d119CC777fa900bA034cd52;
    address internal constant FXS_ADDRESS = 0x3432B6A60D23Ca0dFCa7761B7ab56459D9C964D0;
    address internal constant SPELL_ADDRESS = 0x090185f2135308BaD17527004364eBcC2D37e5F6;
    address internal constant SDT_ADDRESS = 0x73968b9a57c6E53d41345FD57a6E6ae27d6CDB2F;
    address internal constant SFRXETH_ADDRESS = 0xac3E018457B222d93114458476f3E3416Abbe38F;
    // Will be added after deployment of zunUSD v2 pool
    address internal constant ZUNUSD_ADDRESS = 0x8C0D76C9B18779665475F3E212D9Ca1Ed6A1A0e6;
    // Will be added after deployment of zunUSD v2 pool controller
    address internal constant zunUSD_CONTROLLER_ADDRESS =
        0x618eee502CDF6b46A2199C21D1411f3F6065c940;
    // Will be added after deployment of zunETH v2 pool
    address internal constant zunETH_ADDRESS = 0xc2e660C62F72c2ad35AcE6DB78a616215E2F2222;
    address internal constant zunETH_CONTROLLER_ADDRESS =
        0x54A00DA65c79DDCe24E7fe4691737FD70F7797DF;

    address public constant CHAINLINK_FEED_REGISTRY_ETH_ADDRESS =
        0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;

    address internal constant CRV_3POOL_ADDRESS = 0xbEbc44782C7dB0a1A60Cb6fe97d0b483032FF1C7;
    address internal constant CRV_3POOL_LP_ADDRESS = 0x6c3F90f043a72FA612cbac8115EE7e52BDe6E490;

    address internal constant CRV_TRICRYPTO2_ADDRESS = 0xD51a44d3FaE010294C616388b506AcdA1bfAAE46;

    address internal constant ETH_frxETH_ADDRESS = 0xa1F8A6807c402E4A15ef4EBa36528A3FED24E577;
    address internal constant ETH_frxETH_LP_ADDRESS = 0xf43211935C781D5ca1a41d2041F397B8A7366C7A;

    address internal constant WETH_frxETH_ADDRESS = 0x9c3B46C0Ceb5B9e304FCd6D88Fc50f7DD24B31Bc;
    address internal constant WETH_frxETH_LP_ADDRESS = 0x9c3B46C0Ceb5B9e304FCd6D88Fc50f7DD24B31Bc;

    address internal constant CRV_FRAX_USDC_POOL_ADDRESS =
        0xDcEF968d416a41Cdac0ED8702fAC8128A64241A2;
    address internal constant CRV_FRAX_USDC_POOL_LP_ADDRESS =
        0x3175Df0976dFA876431C2E9eE6Bc45b65d3473CC;

    address internal constant SDT_CRVUSD_USDT_VAULT_ADDRESS =
        0x37b24ac19504C0c6FC1ADc8deb5D24f5C4F6A2f2;
    address internal constant CRV_CRVUSD_USDT_LP_ADDRESS =
        0x390f3595bCa2Df7d23783dFd126427CCeb997BF4;
    address internal constant CRV_CRVUSD_USDT_ADDRESS = 0x390f3595bCa2Df7d23783dFd126427CCeb997BF4;

    address internal constant SDT_CRVUSD_USDC_VAULT_ADDRESS =
        0xb618EA40cb1F5b08839Ba228C8dd58AC3DCA12F3;
    address internal constant CRV_CRVUSD_USDC_LP_ADDRESS =
        0x4DEcE678ceceb27446b35C672dC7d61F30bAD69E;
    address internal constant CRV_CRVUSD_USDC_ADDRESS = 0x4DEcE678ceceb27446b35C672dC7d61F30bAD69E;

    address internal constant CRV_BOOSTER_ADDRESS = 0xF403C135812408BFbE8713b5A23a04b3D48AAE31;

    address internal constant CRV_ETH_stETH_ADDRESS = 0x21E27a5E5513D6e65C4f830167390997aA84843a;
    address internal constant CRV_ETH_stETH_LP_ADDRESS = 0x21E27a5E5513D6e65C4f830167390997aA84843a;
    address internal constant CVX_ETH_stETH_REWARDS_ADDRESS =
        0x6B27D7BC63F1999D14fF9bA900069ee516669ee8;
    uint256 internal constant CVX_ETH_stETH_PID = 177;

    address internal constant CRV_zunUSD_crvUSD_ADDRESS =
        0x8C24b3213FD851db80245FCCc42c40B94Ac9a745;
    address internal constant CRV_zunUSD_crvUSD_LP_ADDRESS =
        0x8C24b3213FD851db80245FCCc42c40B94Ac9a745;
    address internal constant CVX_zunUSD_crvUSD_REWARDS_ADDRESS =
        0xB0408d1477554268Ece9b0a40290C345196fBf1B;
    uint256 internal constant CVX_zunUSD_crvUSD_PID = 309;

    address internal constant CRV_USDT_crvUSD_ADDRESS = 0x390f3595bCa2Df7d23783dFd126427CCeb997BF4;

    address internal constant LLAMALEND_CRVUSD_ADDRESS = 0xCeA18a8752bb7e7817F9AE7565328FE415C0f2cA;
    address internal constant CVX_LLAMALEND_CRVUSD_REWARDS_ADDRESS =
        0x4bf2d8484474170bff8a8c34475be3d87dFF28cA;
    uint256 internal constant CVX_LLAMALEND_CRVUSD_PID = 325;

    address internal constant CRV_zunETH_frxETH_ADDRESS =
        0x3A65cbaebBFecbeA5D0CB523ab56fDbda7fF9aAA;
    address internal constant CRV_zunETH_frxETH_LP_ADDRESS =
        0x3A65cbaebBFecbeA5D0CB523ab56fDbda7fF9aAA;
    address internal constant CVX_zunETH_frxETH_REWARDS_ADDRESS =
        0x756d67A10974Fa0e0cE63F82AF4E7ef0d46d452D;
    uint256 internal constant CVX_zunETH_frxETH_PID = 330;

    address internal constant SDT_zunETH_frxETH_VAULT_ADDRESS =
        0xAaE1Ae12d4C8b811DDa1188b01be23b4ab7C62D2;

    address internal constant SDT_LLAMALEND_CRVUSD_VAULT_ADDRESS =
        0xfa6D40573082D797CB3cC378c0837fB90eB043e5;

    // Will be added after deployment of zunUSD v2 pool and curve pool for zunUSD
    address internal constant CRV_zunUSD_crvFRAX_ADDRESS = address(0);
    address internal constant CRV_zunUSD_crvFRAX_LP_ADDRESS = address(0);
    address internal constant CVX_zunUSD_crvFRAX_REWARDS_ADDRESS = address(0);
    uint256 internal constant CVX_zunUSD_crvFRAX_PID = 0;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @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 value of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

    /**
     * @dev Moves a `value` amount of 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 value) 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 a `value` amount of tokens 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 value) external returns (bool);

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` 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 value) external returns (bool);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @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.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
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].
     *
     * CAUTION: See Security Considerations above.
     */
    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
pragma solidity ^0.8.23;

import { IERC20 } from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import { IStrategy } from './IStrategy.sol';

interface IPool is IERC20 {
    error WrongDeposit(uint256 sid, uint256[5] amounts);
    error AbsentStrategy(uint256 sid);
    error NotStartedStrategy(uint256 sid);
    error DisabledStrategy(uint256 sid);
    error WrongAmount();
    error WrongWithdrawParams(uint256 sid);
    error WrongRatio();
    error ZeroAddress();
    error DuplicatedStrategy();
    error IncorrectArguments();
    error WrongWithdrawPercent();
    error WrongReceiver();
    error IncorrectSid();
    error WrongTokens();
    error WrongDecimalMultipliers();

    struct StrategyInfo {
        IStrategy strategy;
        uint256 startTime;
        uint256 minted;
        bool enabled;
    }

    event Deposited(
        address indexed depositor,
        uint256 deposited,
        uint256[5] amounts,
        uint256 indexed sid
    );

    event Withdrawn(address indexed withdrawer, uint256 withdrawn, uint256 indexed sid);

    event FailedWithdrawal(address indexed withdrawer, uint256[5] amounts, uint256 withdrawn);

    event AddedStrategy(uint256 indexed sid, address indexed strategyAddr, uint256 startTime);
    event ClaimedRewards(address indexed receiver, IERC20[] rewardTokens);
    event ClaimedExtraGains(address indexed receiver, uint256 amount);
    event EnabledStrategy(address indexed pool);
    event DisableStrategy(address indexed pool);
    event UpdatedToken(
        uint256 indexed tid,
        address indexed token,
        uint256 tokenDecimalMultiplier,
        address tokenOld
    );

    function tokens() external view returns (IERC20[5] memory);

    function token(uint256 tid) external view returns (IERC20);

    function tokenDecimalsMultipliers() external view returns (uint256[5] memory);

    function strategyInfo(uint256 sid) external view returns (StrategyInfo memory);

    function claimRewards(address receiver, IERC20[] memory rewardTokens) external;

    function totalHoldings() external view returns (uint256);

    function strategyCount() external view returns (uint256);

    function deposit(
        uint256 sid,
        uint256[5] memory amounts,
        address receiver
    ) external returns (uint256);

    function depositStrategy(uint256 sid, uint256[5] memory amounts) external returns (uint256);

    function withdraw(
        uint256 sid,
        uint256 stableAmount,
        uint256[5] memory minTokenAmounts,
        address receiver
    ) external;

    function mintAndClaimExtraGains(address receiver) external;
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import { IERC20 } from '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import './IPool.sol';

interface IPoolController is IERC20 {
    function pool() external view returns (IPool);

    function deposit(uint256[5] memory amounts, address receiver) external returns (uint256);

    function withdraw(
        uint256 stableAmount,
        uint256[5] memory minTokenAmounts,
        address receiver
    ) external;
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import { IERC20 } from '@openzeppelin/contracts/token/ERC20/IERC20.sol';

interface IStrategy {
    function deposit(uint256[5] memory amounts) external returns (uint256);

    function withdraw(
        address receiver,
        uint256 userDepositRatio, // multiplied by 1e18
        uint256[5] memory minTokenAmounts
    ) external returns (bool);

    function withdrawAll(uint256[5] memory minTokenAmounts) external;

    function totalHoldings() external view returns (uint256);

    function claimRewards(address receiver, IERC20[] memory rewardTokens) external;

    function calcTokenAmount(
        uint256[5] memory tokenAmounts,
        bool isDeposit
    ) external view returns (uint256 sharesAmount);
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

interface ITokenConverter {
    function handle(
        address tokenIn,
        address tokenOut,
        uint256 amount,
        uint256 minAmountOut
    ) external returns (uint256);

    function valuate(
        address tokenIn_,
        address tokenOut_,
        uint256 amountIn_
    ) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";
import {IERC20Permit} from "../extensions/IERC20Permit.sol";
import {Address} from "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev An operation with an ERC20 token failed.
     */
    error SafeERC20FailedOperation(address token);

    /**
     * @dev Indicates a failed `decreaseAllowance` request.
     */
    error SafeERC20FailedDecreaseAllowance(address spender, uint256 currentAllowance, uint256 requestedDecrease);

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transfer, (to, value)));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeCall(token.transferFrom, (from, to, value)));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        forceApprove(token, spender, oldAllowance + value);
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `requestedDecrease`. If `token` returns no
     * value, non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 requestedDecrease) internal {
        unchecked {
            uint256 currentAllowance = token.allowance(address(this), spender);
            if (currentAllowance < requestedDecrease) {
                revert SafeERC20FailedDecreaseAllowance(spender, currentAllowance, requestedDecrease);
            }
            forceApprove(token, spender, currentAllowance - requestedDecrease);
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Meant to be used with tokens that require the approval
     * to be set to zero before setting it to a non-zero value, such as USDT.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeCall(token.approve, (spender, value));

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeCall(token.approve, (spender, 0)));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data);
        if (returndata.length != 0 && !abi.decode(returndata, (bool))) {
            revert SafeERC20FailedOperation(address(token));
        }
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}

//SPDX-License-Identifier: MIT
pragma solidity ^0.8.23;

import '@openzeppelin/contracts/token/ERC20/IERC20.sol';
import '@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol';
import '../interfaces/IPoolController.sol';
import '../interfaces/ITokenConverter.sol';
import '../utils/Constants.sol';

contract ZunamiDepositZap2 {
    using SafeERC20 for IERC20;

    error ZeroAddress();
    error SameAddress();

    uint8 public constant POOL_ASSETS = 5;

    uint256 constant ZUNAMI_CRVUSD_TOKEN_ID = 3;

    uint256 public constant MIN_AMOUNT_DENOMINATOR = 10000;
    uint256 public constant MIN_AMOUNT = 9950; // 99.50%

    IPool public immutable zunamiPool;
    IPoolController public immutable apsController;
    ITokenConverter public immutable converter;

    constructor(address zunamiPoolAddr, address apsControllerAddr, address tokenConverterAddr) {
        if (
            zunamiPoolAddr == address(0) ||
            apsControllerAddr == address(0) ||
            tokenConverterAddr == address(0)
        ) revert ZeroAddress();
        zunamiPool = IPool(zunamiPoolAddr);
        apsController = IPoolController(apsControllerAddr);
        converter = ITokenConverter(tokenConverterAddr);
    }

    function deposit(
        uint256[POOL_ASSETS] memory amounts,
        address receiver
    ) external returns (uint256 shares) {
        if (receiver == address(0)) {
            receiver = msg.sender;
        }

        IERC20[POOL_ASSETS] memory tokens = zunamiPool.tokens();
        uint256[POOL_ASSETS] memory tokenDecimalsMultipliers = zunamiPool
            .tokenDecimalsMultipliers();
        for (uint256 i = 0; i < amounts.length; i++) {
            uint256 amount = amounts[i];
            IERC20 token = tokens[i];
            uint256 tokenDecimalsMultiplier = tokenDecimalsMultipliers[i];
            if (i == ZUNAMI_CRVUSD_TOKEN_ID) {
                token = IERC20(Constants.CRVUSD_ADDRESS);
                tokenDecimalsMultiplier = 1;
            }
            if (address(token) != address(0) && amount > 0) {
                token.safeTransferFrom(msg.sender, address(this), amount);
                token.safeTransfer(address(converter), amount);
                converter.handle(
                    address(token),
                    address(zunamiPool),
                    amount,
                    (amount * tokenDecimalsMultiplier * MIN_AMOUNT) / MIN_AMOUNT_DENOMINATOR
                );
            }
        }

        uint256 zunStableBalance = zunamiPool.balanceOf(address(this));
        IERC20(address(zunamiPool)).safeIncreaseAllowance(address(apsController), zunStableBalance);
        return apsController.deposit([zunStableBalance, 0, 0, 0, 0], receiver);
    }
}

{
  "compilationTarget": {
    "contracts/utils/ZunamiDepositZap2.sol": "ZunamiDepositZap2"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}