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// SPDX-License-Identifier: MIT

pragma solidity 0.8.17;

import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";
import "@openzeppelin/contracts/utils/Address.sol";
import "@openzeppelin/contracts/utils/Context.sol";

/**
 * @title PaymentSplitter
 * @dev This contract allows to split Ether and ERC20 payments among a group of accounts. The sender does not need to be aware
 * that the Ether or token will be split in this way, since it is handled transparently by the contract.
 *
 * The split can be in equal parts or in any other arbitrary proportion. The way this is specified is by assigning each
 * account to a number of shares. Of all the Ether that this contract receives, each account will then be able to claim
 * an amount proportional to the percentage of total shares they were assigned.
 *
 * `PaymentSplitter` follows a _pull payment_ model. This means that payments are not automatically forwarded to the
 * accounts but kept in this contract, and the actual transfer is triggered as a separate step by calling the {release}
 * function.
 *
 * NOTE: This contract assumes that ERC20 tokens will behave similarly to native tokens (Ether). Rebasing tokens, and
 * tokens that apply fees during transfers, are likely to not be supported as expected. If in doubt, we encourage you
 * to run tests before sending real value to this contract.
 */
contract PaymentSplitterConfigurable is Context {
    event PayeeAdded(address account, uint256 shares);
    event PaymentReleased(address to, uint256 amount);
    event ERC20PaymentReleased(
        IERC20 indexed token,
        address to,
        uint256 amount
    );
    event PaymentReceived(address from, uint256 amount);
    event AccountProposed(
        address indexed currentAccount,
        address indexed proposedAccount,
        bytes32 proposalId
    );
    event AccountApproved(
        address indexed currentAccount,
        address indexed proposedAccount,
        bytes32 indexed proposalId
    );
    event AccountReplaced(
        address indexed previousAccount,
        address indexed currentAccount,
        bytes32 indexed proposalId
    );

    struct Proposal {
        address proposerAccount;
        address currentAccount;
        address proposedAccount;
        address[] approvals;
        uint256 deadline;
    }

    uint256 private _totalShares;
    uint256 private _totalReleased;

    mapping(uint256 => uint256) private _shares;
    mapping(uint256 => uint256) private _released;
    address[] private _payees;

    mapping(IERC20 => uint256) private _erc20TotalReleased;
    mapping(IERC20 => mapping(uint256 => uint256)) private _erc20Released;

    mapping(address => uint256) private _addressIndex;

    mapping(bytes32 => Proposal) private _proposals;

    mapping(uint256 => uint256) private noncesUsed;

    /**
     * @dev Creates an instance of `PaymentSplitter` where each account in `payees` is assigned the number of shares at
     * the matching position in the `shares` array.
     *
     * All addresses in `payees` must be non-zero. Both arrays must have the same non-zero length, and there must be no
     * duplicates in `payees`.
     */
    constructor(address[] memory payees, uint256[] memory shares_) payable {
        require(
            payees.length == shares_.length,
            "PaymentSplitter: payees and shares length mismatch"
        );
        require(payees.length > 0, "PaymentSplitter: no payees");

        for (uint256 i = 0; i < payees.length; i++) {
            _addPayee(payees[i], shares_[i]);
        }
    }

    /**
     * @dev The Ether received will be logged with {PaymentReceived} events. Note that these events are not fully
     * reliable: it's possible for a contract to receive Ether without triggering this function. This only affects the
     * reliability of the events, and not the actual splitting of Ether.
     *
     * To learn more about this see the Solidity documentation for
     * https://solidity.readthedocs.io/en/latest/contracts.html#fallback-function[fallback
     * functions].
     */
    receive() external payable virtual {
        emit PaymentReceived(_msgSender(), msg.value);
    }

    /**
     * @dev Getter for the total shares held by payees.
     */
    function totalShares() public view returns (uint256) {
        return _totalShares;
    }

    /**
     * @dev Getter for the total amount of Ether already released.
     */
    function totalReleased() public view returns (uint256) {
        return _totalReleased;
    }

    /**
     * @dev Getter for the total amount of `token` already released. `token` should be the address of an IERC20
     * contract. The `account` address can change over time, but the released amount wil be cumulative over the index.
     */
    function totalReleased(IERC20 token) public view returns (uint256) {
        return _erc20TotalReleased[token];
    }

    /**
     * @dev Getter for the amount of shares held by an account.
     */
    function shares(address account) public view returns (uint256) {
        uint256 index = _addressIndex[account];
        if (index == 0 && _payees[index] != account) {
            return 0;
        }
        return _shares[index];
    }

    /**
     * @dev Getter for the amount of Ether already released to a payee.
     */
    function released(address account) public view returns (uint256) {
        uint256 index = _addressIndex[account];
        if (index == 0 && _payees[index] != account) {
            return 0;
        }
        return _released[index];
    }

    /**
     * @dev Getter for the amount of `token` tokens already released to a payee. `token` should be the address of an
     * IERC20 contract. The `account` address can change over time, but the released amount wil be cumulative over the index.
     */
    function released(IERC20 token, address account)
        public
        view
        returns (uint256)
    {
        uint256 index = _addressIndex[account];
        if (index == 0 && _payees[index] != account) {
            return 0;
        }
        return _erc20Released[token][index];
    }

    /**
     * @dev Getter for the address of the payee number `index`.
     */
    function payee(uint256 index) public view returns (address) {
        return _payees[index];
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of Ether they are owed, according to their percentage of the
     * total shares and their previous withdrawals.
     */
    function release(address payable account) public virtual {
        uint256 index = _addressIndex[account];
        require(
            _payees[index] == account && _shares[index] > 0,
            "PaymentSplitter: account has no shares"
        );

        uint256 totalReceived = address(this).balance + totalReleased();
        uint256 payment = _pendingPayment(
            account,
            totalReceived,
            released(account)
        );

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _released[index] += payment;
        _totalReleased += payment;

        Address.sendValue(account, payment);
        emit PaymentReleased(account, payment);
    }

    /**
     * @dev Triggers a transfer to `account` of the amount of `token` tokens they are owed, according to their
     * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20
     * contract.
     */
    function release(IERC20 token, address account) public virtual {
        uint256 index = _addressIndex[account];
        require(
            _payees[index] == account && _shares[index] > 0,
            "PaymentSplitter: account has no shares"
        );

        uint256 totalReceived = token.balanceOf(address(this)) +
            totalReleased(token);
        uint256 payment = _pendingPayment(
            account,
            totalReceived,
            released(token, account)
        );

        require(payment != 0, "PaymentSplitter: account is not due payment");

        _erc20Released[token][index] += payment;
        _erc20TotalReleased[token] += payment;

        SafeERC20.safeTransfer(token, account, payment);
        emit ERC20PaymentReleased(token, account, payment);
    }

    /**
     * @dev Views a pending transfer to `account` of the amount of Ether they are owed, according to their percentage of the
     * total shares and their previous withdrawals.
     */
    function pendingRelease(address account)
        public
        view
        virtual
        returns (uint256)
    {
        require(shares(account) > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = address(this).balance + totalReleased();
        uint256 payment = _pendingPayment(
            account,
            totalReceived,
            released(account)
        );
        return payment;
    }

    /**
     * @dev Views a pending transfer to `account` of the amount of `token` tokens they are owed, according to their
     * percentage of the total shares and their previous withdrawals. `token` must be the address of an IERC20
     * contract.
     */
    function pendingRelease(IERC20 token, address account)
        public
        view
        virtual
        returns (uint256)
    {
        require(shares(account) > 0, "PaymentSplitter: account has no shares");

        uint256 totalReceived = token.balanceOf(address(this)) +
            totalReleased(token);
        uint256 payment = _pendingPayment(
            account,
            totalReceived,
            released(token, account)
        );
        return payment;
    }

    /**
     * @dev internal logic for computing the pending payment of an `account` given the token historical balances and
     * already released amounts.
     */
    function _pendingPayment(
        address account,
        uint256 totalReceived,
        uint256 alreadyReleased
    ) private view returns (uint256) {
        uint256 index = _addressIndex[account];
        return
            (totalReceived * _shares[index]) / _totalShares - alreadyReleased;
    }

    /**
     * @dev Add a new payee to the contract.
     * @param account The address of the payee to add.
     * @param shares_ The number of shares owned by the payee.
     */
    function _addPayee(address account, uint256 shares_) private {
        require(
            account != address(0),
            "PaymentSplitter: account is the zero address"
        );
        require(shares_ > 0, "PaymentSplitter: shares are 0");
        uint256 index = _payees.length;
        require(
            _shares[index] == 0,
            "PaymentSplitter: account already has shares"
        );
        _addressIndex[account] = index;
        _payees.push(account);
        _shares[index] = shares_;
        _totalShares = _totalShares + shares_;

        emit PayeeAdded(account, shares_);
    }

    function proposePayeeReplacement(
        address currentAccount,
        address proposedAccount
    ) public {
        require(
            shares(_msgSender()) > 0,
            "PaymentSplitter: caller is not a payee"
        );
        require(
            proposedAccount != address(0),
            "PaymentSplitter: account is the zero address"
        );
        uint256 index = _addressIndex[currentAccount];
        require(
            currentAccount == _payees[index],
            "PaymentSplitter: current account does not match"
        );
        require(
            shares(proposedAccount) == 0,
            "PaymentSplitter: proposed account has shares"
        );
        uint256 proposerIndex = _addressIndex[_msgSender()];
        uint256 nonce = noncesUsed[proposerIndex];
        noncesUsed[proposerIndex] += 1;
        bytes32 proposalId = keccak256(
            abi.encodePacked(
                _msgSender(),
                currentAccount,
                proposedAccount,
                nonce
            )
        );
        _proposals[proposalId] = Proposal({
            proposerAccount: _msgSender(),
            currentAccount: currentAccount,
            proposedAccount: proposedAccount,
            approvals: new address[](0),
            deadline: block.timestamp + 3 days
        });
        emit AccountProposed(currentAccount, proposedAccount, proposalId);
    }

    function approvePayeeReplacement(bytes32 proposalId) public {
        require(
            shares(_msgSender()) > 0,
            "PaymentSplitter: caller is not a payee"
        );
        Proposal storage proposal = _proposals[proposalId];
        require(
            proposal.deadline > block.timestamp,
            "PaymentSplitter: proposal deadline has passed"
        );
        require(
            proposal.proposerAccount != _msgSender(),
            "PaymentSplitter: caller cannot be proposer account"
        );
        for (uint256 i; i < proposal.approvals.length; i++) {
            require(
                proposal.approvals[i] != _msgSender(),
                "PaymentSplitter: caller already approved"
            );
        }
        proposal.approvals.push(_msgSender());
        emit AccountApproved(
            proposal.currentAccount,
            proposal.proposedAccount,
            proposalId
        );
    }

    function executePayeeReplacement(bytes32 proposalId) public {
        require(
            shares(_msgSender()) > 0,
            "PaymentSplitter: caller is not a payee"
        );
        Proposal storage proposal = _proposals[proposalId];
        uint256 index = _addressIndex[proposal.currentAccount];
        require(
            proposal.currentAccount == _payees[index],
            "PaymentSplitter: invalid proposal"
        );
        require(
            proposal.approvals.length >= 2,
            "PaymentSplitter: insufficient approvals"
        );
        _payees[index] = proposal.proposedAccount;
        _addressIndex[proposal.proposedAccount] = index;
        delete _addressIndex[proposal.currentAccount];

        emit AccountReplaced(
            proposal.currentAccount,
            proposal.proposedAccount,
            proposalId
        );
    }

    function viewProposal(bytes32 proposalId)
        public
        view
        returns (Proposal memory proposal)
    {
        proposal = _proposals[proposalId];
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../../../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;

    function safeTransfer(
        IERC20 token,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    function safeTransferFrom(
        IERC20 token,
        address from,
        address to,
        uint256 value
    ) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    function safeIncreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        uint256 newAllowance = token.allowance(address(this), spender) + value;
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
    }

    function safeDecreaseAllowance(
        IERC20 token,
        address spender,
        uint256 value
    ) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            uint256 newAllowance = oldAllowance - value;
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));
        }
    }

    /**
     * @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, "SafeERC20: low-level call failed");
        if (returndata.length > 0) {
            // Return data is optional
            require(abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.5.0) (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
     * ====
     *
     * [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://diligence.consensys.net/posts/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/v0.5.11/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 functionCall(target, data, "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");
        require(isContract(target), "Address: call to non-contract");

        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: static call to non-contract");

        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResult(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) {
        require(isContract(target), "Address: delegate call to non-contract");

        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResult(success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verifies that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason 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 {
            // 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

                assembly {
                    let returndata_size := mload(returndata)
                    revert(add(32, returndata), returndata_size)
                }
            } else {
                revert(errorMessage);
            }
        }
    }
}

// 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 (last updated v4.5.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @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);

    /**
     * @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);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 500
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address[]","name":"payees","type":"address[]"},{"internalType":"uint256[]","name":"shares_","type":"uint256[]"}],"stateMutability":"payable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"currentAccount","type":"address"},{"indexed":true,"internalType":"address","name":"proposedAccount","type":"address"},{"indexed":true,"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"AccountApproved","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"currentAccount","type":"address"},{"indexed":true,"internalType":"address","name":"proposedAccount","type":"address"},{"indexed":false,"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"AccountProposed","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousAccount","type":"address"},{"indexed":true,"internalType":"address","name":"currentAccount","type":"address"},{"indexed":true,"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"AccountReplaced","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"contract IERC20","name":"token","type":"address"},{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"ERC20PaymentReleased","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"account","type":"address"},{"indexed":false,"internalType":"uint256","name":"shares","type":"uint256"}],"name":"PayeeAdded","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"from","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReceived","type":"event"},{"anonymous":false,"inputs":[{"indexed":false,"internalType":"address","name":"to","type":"address"},{"indexed":false,"internalType":"uint256","name":"amount","type":"uint256"}],"name":"PaymentReleased","type":"event"},{"inputs":[{"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"approvePayeeReplacement","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"executePayeeReplacement","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"index","type":"uint256"}],"name":"payee","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"pendingRelease","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"pendingRelease","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"currentAccount","type":"address"},{"internalType":"address","name":"proposedAccount","type":"address"}],"name":"proposePayeeReplacement","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address payable","name":"account","type":"address"}],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"release","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"},{"internalType":"address","name":"account","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"released","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"account","type":"address"}],"name":"shares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"contract IERC20","name":"token","type":"address"}],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalReleased","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalShares","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"bytes32","name":"proposalId","type":"bytes32"}],"name":"viewProposal","outputs":[{"components":[{"internalType":"address","name":"proposerAccount","type":"address"},{"internalType":"address","name":"currentAccount","type":"address"},{"internalType":"address","name":"proposedAccount","type":"address"},{"internalType":"address[]","name":"approvals","type":"address[]"},{"internalType":"uint256","name":"deadline","type":"uint256"}],"internalType":"struct PaymentSplitterConfigurable.Proposal","name":"proposal","type":"tuple"}],"stateMutability":"view","type":"function"},{"stateMutability":"payable","type":"receive"}]

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

-----Decoded View---------------
Arg [0] : payees (address[]): 0x2278de986e7F4d3cD31463e3f5cb3A10f985B511,0x361eD1C2a8BBde0f8b3C96202fbC03E81A3Ae3d7,0xfEEdBF87479E80f344900818CE191322DF8A23a0,0x2d44b137534c8D4BA71635fc8A0E941fECE9E302,0x26F2314b26693Ef585e95954240CCf2b4500477a,0x6F1f02415Ff9CB3C39Ecddf03b79D724897e597d
Arg [1] : shares_ (uint256[]): 1850,1850,12350,12350,9870,61730

-----Encoded View---------------
16 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000040
Arg [1] : 0000000000000000000000000000000000000000000000000000000000000120
Arg [2] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [3] : 0000000000000000000000002278de986e7f4d3cd31463e3f5cb3a10f985b511
Arg [4] : 000000000000000000000000361ed1c2a8bbde0f8b3c96202fbc03e81a3ae3d7
Arg [5] : 000000000000000000000000feedbf87479e80f344900818ce191322df8a23a0
Arg [6] : 0000000000000000000000002d44b137534c8d4ba71635fc8a0e941fece9e302
Arg [7] : 00000000000000000000000026f2314b26693ef585e95954240ccf2b4500477a
Arg [8] : 0000000000000000000000006f1f02415ff9cb3c39ecddf03b79d724897e597d
Arg [9] : 0000000000000000000000000000000000000000000000000000000000000006
Arg [10] : 000000000000000000000000000000000000000000000000000000000000073a
Arg [11] : 000000000000000000000000000000000000000000000000000000000000073a
Arg [12] : 000000000000000000000000000000000000000000000000000000000000303e
Arg [13] : 000000000000000000000000000000000000000000000000000000000000303e
Arg [14] : 000000000000000000000000000000000000000000000000000000000000268e
Arg [15] : 000000000000000000000000000000000000000000000000000000000000f122