// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;
pragma abicoder v1;

/// @title Library that implements address array on mapping, stores array length at 0 index.
library AddressArray {
    error IndexOutOfBounds();
    error PopFromEmptyArray();
    error OutputArrayTooSmall();

    /// @dev Data struct containing raw mapping.
    struct Data {
        mapping(uint256 => uint256) _raw;
    }

    /// @dev Length of array.
    function length(Data storage self) internal view returns (uint256) {
        return self._raw[0] >> 160;
    }

    /// @dev Returns data item from `self` storage at `i`.
    function at(Data storage self, uint256 i) internal view returns (address) {
        return address(uint160(self._raw[i]));
    }

    /// @dev Returns list of addresses from storage `self`.
    function get(Data storage self) internal view returns (address[] memory arr) {
        uint256 lengthAndFirst = self._raw[0];
        arr = new address[](lengthAndFirst >> 160);
        _get(self, arr, lengthAndFirst);
    }

    /// @dev Puts list of addresses from `self` storage into `output` array.
    function get(Data storage self, address[] memory output) internal view returns (address[] memory) {
        return _get(self, output, self._raw[0]);
    }

    function _get(
        Data storage self,
        address[] memory output,
        uint256 lengthAndFirst
    ) private view returns (address[] memory) {
        uint256 len = lengthAndFirst >> 160;
        if (len > output.length) revert OutputArrayTooSmall();
        if (len > 0) {
            output[0] = address(uint160(lengthAndFirst));
            unchecked {
                for (uint256 i = 1; i < len; i++) {
                    output[i] = address(uint160(self._raw[i]));
                }
            }
        }
        return output;
    }

    /// @dev Array push back `account` operation on storage `self`.
    function push(Data storage self, address account) internal returns (uint256) {
        unchecked {
            uint256 lengthAndFirst = self._raw[0];
            uint256 len = lengthAndFirst >> 160;
            if (len == 0) {
                self._raw[0] = (1 << 160) + uint160(account);
            } else {
                self._raw[0] = lengthAndFirst + (1 << 160);
                self._raw[len] = uint160(account);
            }
            return len + 1;
        }
    }

    /// @dev Array pop back operation for storage `self`.
    function pop(Data storage self) internal {
        unchecked {
            uint256 lengthAndFirst = self._raw[0];
            uint256 len = lengthAndFirst >> 160;
            if (len == 0) revert PopFromEmptyArray();
            self._raw[len - 1] = 0;
            if (len > 1) {
                self._raw[0] = lengthAndFirst - (1 << 160);
            }
        }
    }

    /// @dev Set element for storage `self` at `index` to `account`.
    function set(
        Data storage self,
        uint256 index,
        address account
    ) internal {
        uint256 len = length(self);
        if (index >= len) revert IndexOutOfBounds();

        if (index == 0) {
            self._raw[0] = (len << 160) | uint160(account);
        } else {
            self._raw[index] = uint160(account);
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;
pragma abicoder v1;

import "./AddressArray.sol";

/** @title Library that is using AddressArray library for AddressArray.Data
 * and allows Set operations on address storage data:
 * 1. add
 * 2. remove
 * 3. contains
 */
library AddressSet {
    using AddressArray for AddressArray.Data;

    /** @dev Data struct from AddressArray.Data items
     * and lookup mapping address => index in data array.
     */
    struct Data {
        AddressArray.Data items;
        mapping(address => uint256) lookup;
    }

    /// @dev Length of data storage.
    function length(Data storage s) internal view returns (uint256) {
        return s.items.length();
    }

    /// @dev Returns data item from `s` storage at `index`.
    function at(Data storage s, uint256 index) internal view returns (address) {
        return s.items.at(index);
    }

    /// @dev Returns true if storage `s` has `item`.
    function contains(Data storage s, address item) internal view returns (bool) {
        return s.lookup[item] != 0;
    }

    /// @dev Adds `item` into storage `s` and returns true if successful.
    function add(Data storage s, address item) internal returns (bool) {
        if (s.lookup[item] > 0) {
            return false;
        }
        s.lookup[item] = s.items.push(item);
        return true;
    }

    /// @dev Removes `item` from storage `s` and returns true if successful.
    function remove(Data storage s, address item) internal returns (bool) {
        uint256 index = s.lookup[item];
        if (index == 0) {
            return false;
        }
        if (index < s.items.length()) {
            unchecked {
                address lastItem = s.items.at(s.items.length() - 1);
                s.items.set(index - 1, lastItem);
                s.lookup[lastItem] = index;
            }
        }
        s.items.pop();
        delete s.lookup[item];
        return true;
    }
}

// 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

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@1inch/erc20-pods/contracts/ERC20Pods.sol";
import "./interfaces/IDelegatedShare.sol";

contract DelegatedShare is IDelegatedShare, ERC20Pods {
    error ApproveDisabled();
    error TransferDisabled();
    error NotOwner();

    address immutable private _owner;

    modifier onlyOwner {
        if (msg.sender != _owner) revert NotOwner();
        _;
    }

    constructor(
        string memory name,
        string memory symbol,
        uint256 maxUserPods,
        uint256 podCallGasLimit
    ) ERC20(name, symbol) ERC20Pods(maxUserPods, podCallGasLimit) {
        _owner = msg.sender;
    }

    function addDefaultFarmIfNeeded(address account, address farm) external onlyOwner {
        if (!hasPod(account, farm)) {
            _addPod(account, farm);
        }
    }

    function mint(address account, uint256 amount) external onlyOwner {
        _mint(account, amount);
    }

    function burn(address account, uint256 amount) external onlyOwner {
        _burn(account, amount);
    }

    function approve(address /* spender */, uint256 /* amount */) public pure override(ERC20, IERC20) returns (bool) {
        revert ApproveDisabled();
    }

    function transfer(address /* to */, uint256 /* amount */) public pure override(IERC20, ERC20) returns (bool) {
        revert TransferDisabled();
    }

    function transferFrom(address /* from */, address /* to */, uint256 /* amount */) public pure override(IERC20, ERC20) returns (bool) {
        revert TransferDisabled();
    }

    function increaseAllowance(address /* spender */, uint256 /* addedValue */) public pure override returns (bool) {
        revert ApproveDisabled();
    }

    function decreaseAllowance(address /* spender */, uint256 /* subtractedValue */) public pure override returns (bool) {
        revert ApproveDisabled();
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.8.0) (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].
 *
 * 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}.
     *
     * The default value of {decimals} is 18. To select a different value for
     * {decimals} you should overload it.
     *
     * 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 value {ERC20} uses, unless this function is
     * 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

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/ERC20.sol";
import "@1inch/solidity-utils/contracts/libraries/AddressSet.sol";

import "./interfaces/IERC20Pods.sol";
import "./interfaces/IPod.sol";
import "./libs/ReentrancyGuard.sol";

abstract contract ERC20Pods is ERC20, IERC20Pods, ReentrancyGuardExt {
    using AddressSet for AddressSet.Data;
    using AddressArray for AddressArray.Data;
    using ReentrancyGuardLib for ReentrancyGuardLib.Data;

    error PodAlreadyAdded();
    error PodNotFound();
    error InvalidPodAddress();
    error PodsLimitReachedForAccount();
    error InsufficientGas();
    error ZeroPodsLimit();

    uint256 public immutable podsLimit;
    uint256 public immutable podCallGasLimit;

    ReentrancyGuardLib.Data private _guard;
    mapping(address => AddressSet.Data) private _pods;

    constructor(uint256 podsLimit_, uint256 podCallGasLimit_) {
        if (podsLimit_ == 0) revert ZeroPodsLimit();
        podsLimit = podsLimit_;
        podCallGasLimit = podCallGasLimit_;
        _guard.init();
    }

    function hasPod(address account, address pod) public view virtual returns(bool) {
        return _pods[account].contains(pod);
    }

    function podsCount(address account) public view virtual returns(uint256) {
        return _pods[account].length();
    }

    function podAt(address account, uint256 index) public view virtual returns(address) {
        return _pods[account].at(index);
    }

    function pods(address account) public view virtual returns(address[] memory) {
        return _pods[account].items.get();
    }

    function balanceOf(address account) public nonReentrantView(_guard) view override(IERC20, ERC20) virtual returns(uint256) {
        return super.balanceOf(account);
    }

    function podBalanceOf(address pod, address account) public nonReentrantView(_guard) view virtual returns(uint256) {
        if (hasPod(account, pod)) {
            return super.balanceOf(account);
        }
        return 0;
    }

    function addPod(address pod) public virtual {
        _addPod(msg.sender, pod);
    }

    function removePod(address pod) public virtual {
        _removePod(msg.sender, pod);
    }

    function removeAllPods() public virtual {
        _removeAllPods(msg.sender);
    }

    function _addPod(address account, address pod) internal virtual {
        if (pod == address(0)) revert InvalidPodAddress();
        if (!_pods[account].add(pod)) revert PodAlreadyAdded();
        if (_pods[account].length() > podsLimit) revert PodsLimitReachedForAccount();

        emit PodAdded(account, pod);
        uint256 balance = balanceOf(account);
        if (balance > 0) {
            _updateBalances(pod, address(0), account, balance);
        }
    }

    function _removePod(address account, address pod) internal virtual {
        if (!_pods[account].remove(pod)) revert PodNotFound();

        emit PodRemoved(account, pod);
        uint256 balance = balanceOf(account);
        if (balance > 0) {
            _updateBalances(pod, account, address(0), balance);
        }
    }

    function _removeAllPods(address account) internal virtual {
        address[] memory items = _pods[account].items.get();
        uint256 balance = balanceOf(account);
        unchecked {
            for (uint256 i = items.length; i > 0; i--) {
                _pods[account].remove(items[i - 1]);
                emit PodRemoved(account, items[i - 1]);
                if (balance > 0) {
                    _updateBalances(items[i - 1], account, address(0), balance);
                }
            }
        }
    }

    /// @notice Assembly implementation of the gas limited call to avoid return gas bomb,
    // moreover call to a destructed pod would also revert even inside try-catch block in Solidity 0.8.17
    /// @dev try IPod(pod).updateBalances{gas: _POD_CALL_GAS_LIMIT}(from, to, amount) {} catch {}
    function _updateBalances(address pod, address from, address to, uint256 amount) private {
        bytes4 selector = IPod.updateBalances.selector;
        bytes4 exception = InsufficientGas.selector;
        uint256 gasLimit = podCallGasLimit;
        assembly {  // solhint-disable-line no-inline-assembly
            let ptr := mload(0x40)
            mstore(ptr, selector)
            mstore(add(ptr, 0x04), from)
            mstore(add(ptr, 0x24), to)
            mstore(add(ptr, 0x44), amount)

            if lt(div(mul(gas(), 63), 64), gasLimit) {
                mstore(0, exception)
                revert(0, 4)
            }
            pop(call(gasLimit, pod, 0, ptr, 0x64, 0, 0))
        }
    }

    // ERC20 Overrides

    function _afterTokenTransfer(address from, address to, uint256 amount) internal nonReentrant(_guard) override virtual {
        super._afterTokenTransfer(from, to, amount);

        unchecked {
            if (amount > 0 && from != to) {
                address[] memory a = _pods[from].items.get();
                address[] memory b = _pods[to].items.get();
                uint256 aLength = a.length;
                uint256 bLength = b.length;

                for (uint256 i = 0; i < aLength; i++) {
                    address pod = a[i];

                    uint256 j;
                    for (j = 0; j < bLength; j++) {
                        if (pod == b[j]) {
                            // Both parties are participating of the same Pod
                            _updateBalances(pod, from, to, amount);
                            b[j] = address(0);
                            break;
                        }
                    }

                    if (j == bLength) {
                        // Sender is participating in a Pod, but receiver is not
                        _updateBalances(pod, from, address(0), amount);
                    }
                }

                for (uint256 j = 0; j < bLength; j++) {
                    address pod = b[j];
                    if (pod != address(0)) {
                        // Receiver is participating in a Pod, but sender is not
                        _updateBalances(pod, address(0), to, amount);
                    }
                }
            }
        }
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "@1inch/erc20-pods/contracts/interfaces/IERC20Pods.sol";

interface IDelegatedShare is IERC20Pods {
    function addDefaultFarmIfNeeded(address account, address farm) external; // onlyOwner
    function mint(address account, uint256 amount) external; // onlyOwner
    function burn(address account, uint256 amount) external; // onlyOwner
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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

pragma solidity ^0.8.0;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IERC20Pods is IERC20 {
    event PodAdded(address account, address pod);
    event PodRemoved(address account, address pod);

    function hasPod(address account, address pod) external view returns(bool);
    function podsCount(address account) external view returns(uint256);
    function podAt(address account, uint256 index) external view returns(address);
    function pods(address account) external view returns(address[] memory);
    function podBalanceOf(address pod, address account) external view returns(uint256);

    function addPod(address pod) external;
    function removePod(address pod) external;
    function removeAllPods() external;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IPod {
    function updateBalances(address from, address to, uint256 amount) external;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

library ReentrancyGuardLib {
    error ReentrantCall();

    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    struct Data {
        uint256 _status;
    }

    function init(Data storage self) internal {
        self._status = _NOT_ENTERED;
    }

    function enter(Data storage self) internal {
        if (self._status == _ENTERED) revert ReentrantCall();
        self._status = _ENTERED;
    }

    function exit(Data storage self) internal {
        self._status = _NOT_ENTERED;
    }

    function check(Data storage self) internal view returns (bool) {
        return self._status == _ENTERED;
    }
}

contract ReentrancyGuardExt {
    using ReentrancyGuardLib for ReentrancyGuardLib.Data;

    modifier nonReentrant(ReentrancyGuardLib.Data storage self) {
        self.enter();
        _;
        self.exit();
    }

    modifier nonReentrantView(ReentrancyGuardLib.Data storage self) {
        if (self.check()) revert ReentrancyGuardLib.ReentrantCall();
        _;
    }
}

{
  "compilationTarget": {
    "contracts/DelegatedShare.sol": "DelegatedShare"
  },
  "evmVersion": "london",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs",
    "useLiteralContent": true
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "remappings": []
}