Contract

0x491A140c185Feb0C0BbF90Fa4bBF6b0A3CF019D1

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0xe872E7E3...77bfEf088 at txn 0x93677cc2fad7dfe60aece64f3f4fb8d38e092737ae25b34e740c5355afee58ae

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	Transaction Hash	Method	Block		From		To
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Parent Transaction Hash	Method	Block		From		To
0x93677cc2fad7dfe60aece64f3f4fb8d38e092737ae25b34e740c5355afee58ae	0x60a06040	17934748	2023-08-17 13:10:23	576 days ago	1692277823	0x491A140c...A3CF019D1		Contract Creation	0 ETH$0.00

This contract may be a proxy contract. Click on More Options and select Is this a proxy? to confirm and enable the "Read as Proxy" & "Write as Proxy" tabs.

Contract Source Code Verified (Exact Match)

Contract Name:

OpenPeerEscrowsDeployer

Compiler Version

v0.8.18+commit.87f61d96

Optimization Enabled:

Yes with 200 runs

Other Settings:

default evmVersion, MIT license

Contract Source Code (Solidity)

IDE

/**
 *Submitted for verification at Etherscan.io on 2023-08-17
*/

// File: interfaces/IOpenPeerDeployer.sol


pragma solidity ^0.8.17;

interface IOpenPeerDeployer {
  function partnerFeeBps(address _partner) external view returns (uint256);
}
// File: libs/ERC2771Context.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) {
        this; // silence state mutability warning without generating bytecode - see https://github.com/ethereum/solidity/issues/2691
        return msg.data;
    }
}

/**
 * @dev Context variant with ERC2771 support.
 */
abstract contract ERC2771Context is Context {
    /// @custom:oz-upgrades-unsafe-allow state-variable-immutable
    address internal _trustedForwarder;

    /// @custom:oz-upgrades-unsafe-allow constructor
    constructor(address trustedForwarder) {
        _trustedForwarder = trustedForwarder;
    }

    function isTrustedForwarder(address forwarder) public view virtual returns (bool) {
        return forwarder == _trustedForwarder;
    }

    function _msgSender() internal view virtual override returns (address sender) {
        if (isTrustedForwarder(msg.sender)) {
            // The assembly code is more direct than the Solidity version using `abi.decode`.
            assembly {
                sender := shr(96, calldataload(sub(calldatasize(), 20)))
            }
        } else {
            return super._msgSender();
        }
    }

    function _msgData() internal view virtual override returns (bytes calldata) {
        if (isTrustedForwarder(msg.sender)) {
            return msg.data[:msg.data.length - 20];
        } else {
            return super._msgData();
        }
    }
}
// File: libs/Ownable.sol


// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

/**
 * @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 ERC2771Context {
    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);
    }
}
// File: @openzeppelin/contracts/utils/Address.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol


// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

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

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

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

// File: @openzeppelin/contracts-upgradeable/utils/AddressUpgradeable.sol


// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts-upgradeable/proxy/utils/Initializable.sol


// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;


/**
 * @dev This is a base contract to aid in writing upgradeable contracts, or any kind of contract that will be deployed
 * behind a proxy. Since proxied contracts do not make use of a constructor, it's common to move constructor logic to an
 * external initializer function, usually called `initialize`. It then becomes necessary to protect this initializer
 * function so it can only be called once. The {initializer} modifier provided by this contract will have this effect.
 *
 * The initialization functions use a version number. Once a version number is used, it is consumed and cannot be
 * reused. This mechanism prevents re-execution of each "step" but allows the creation of new initialization steps in
 * case an upgrade adds a module that needs to be initialized.
 *
 * For example:
 *
 * [.hljs-theme-light.nopadding]
 * ```solidity
 * contract MyToken is ERC20Upgradeable {
 *     function initialize() initializer public {
 *         __ERC20_init("MyToken", "MTK");
 *     }
 * }
 *
 * contract MyTokenV2 is MyToken, ERC20PermitUpgradeable {
 *     function initializeV2() reinitializer(2) public {
 *         __ERC20Permit_init("MyToken");
 *     }
 * }
 * ```
 *
 * TIP: To avoid leaving the proxy in an uninitialized state, the initializer function should be called as early as
 * possible by providing the encoded function call as the `_data` argument to {ERC1967Proxy-constructor}.
 *
 * CAUTION: When used with inheritance, manual care must be taken to not invoke a parent initializer twice, or to ensure
 * that all initializers are idempotent. This is not verified automatically as constructors are by Solidity.
 *
 * [CAUTION]
 * ====
 * Avoid leaving a contract uninitialized.
 *
 * An uninitialized contract can be taken over by an attacker. This applies to both a proxy and its implementation
 * contract, which may impact the proxy. To prevent the implementation contract from being used, you should invoke
 * the {_disableInitializers} function in the constructor to automatically lock it when it is deployed:
 *
 * [.hljs-theme-light.nopadding]
 * ```
 * /// @custom:oz-upgrades-unsafe-allow constructor
 * constructor() {
 *     _disableInitializers();
 * }
 * ```
 * ====
 */
abstract contract Initializable {
    /**
     * @dev Indicates that the contract has been initialized.
     * @custom:oz-retyped-from bool
     */
    uint8 private _initialized;

    /**
     * @dev Indicates that the contract is in the process of being initialized.
     */
    bool private _initializing;

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint8 version);

    /**
     * @dev A modifier that defines a protected initializer function that can be invoked at most once. In its scope,
     * `onlyInitializing` functions can be used to initialize parent contracts.
     *
     * Similar to `reinitializer(1)`, except that functions marked with `initializer` can be nested in the context of a
     * constructor.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        bool isTopLevelCall = !_initializing;
        require(
            (isTopLevelCall && _initialized < 1) || (!AddressUpgradeable.isContract(address(this)) && _initialized == 1),
            "Initializable: contract is already initialized"
        );
        _initialized = 1;
        if (isTopLevelCall) {
            _initializing = true;
        }
        _;
        if (isTopLevelCall) {
            _initializing = false;
            emit Initialized(1);
        }
    }

    /**
     * @dev A modifier that defines a protected reinitializer function that can be invoked at most once, and only if the
     * contract hasn't been initialized to a greater version before. In its scope, `onlyInitializing` functions can be
     * used to initialize parent contracts.
     *
     * A reinitializer may be used after the original initialization step. This is essential to configure modules that
     * are added through upgrades and that require initialization.
     *
     * When `version` is 1, this modifier is similar to `initializer`, except that functions marked with `reinitializer`
     * cannot be nested. If one is invoked in the context of another, execution will revert.
     *
     * Note that versions can jump in increments greater than 1; this implies that if multiple reinitializers coexist in
     * a contract, executing them in the right order is up to the developer or operator.
     *
     * WARNING: setting the version to 255 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint8 version) {
        require(!_initializing && _initialized < version, "Initializable: contract is already initialized");
        _initialized = version;
        _initializing = true;
        _;
        _initializing = false;
        emit Initialized(version);
    }

    /**
     * @dev Modifier to protect an initialization function so that it can only be invoked by functions with the
     * {initializer} and {reinitializer} modifiers, directly or indirectly.
     */
    modifier onlyInitializing() {
        require(_initializing, "Initializable: contract is not initializing");
        _;
    }

    /**
     * @dev Locks the contract, preventing any future reinitialization. This cannot be part of an initializer call.
     * Calling this in the constructor of a contract will prevent that contract from being initialized or reinitialized
     * to any version. It is recommended to use this to lock implementation contracts that are designed to be called
     * through proxies.
     *
     * Emits an {Initialized} event the first time it is successfully executed.
     */
    function _disableInitializers() internal virtual {
        require(!_initializing, "Initializable: contract is initializing");
        if (_initialized != type(uint8).max) {
            _initialized = type(uint8).max;
            emit Initialized(type(uint8).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint8) {
        return _initialized;
    }

    /**
     * @dev Returns `true` if the contract is currently initializing. See {onlyInitializing}.
     */
    function _isInitializing() internal view returns (bool) {
        return _initializing;
    }
}

// File: @openzeppelin/contracts/utils/introspection/IERC165.sol


// OpenZeppelin Contracts v4.4.1 (utils/introspection/IERC165.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC165 standard, as defined in the
 * https://eips.ethereum.org/EIPS/eip-165[EIP].
 *
 * Implementers can declare support of contract interfaces, which can then be
 * queried by others ({ERC165Checker}).
 *
 * For an implementation, see {ERC165}.
 */
interface IERC165 {
    /**
     * @dev Returns true if this contract implements the interface defined by
     * `interfaceId`. See the corresponding
     * https://eips.ethereum.org/EIPS/eip-165#how-interfaces-are-identified[EIP section]
     * to learn more about how these ids are created.
     *
     * This function call must use less than 30 000 gas.
     */
    function supportsInterface(bytes4 interfaceId) external view returns (bool);
}

// File: @openzeppelin/contracts/token/ERC721/IERC721.sol


// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.0;


/**
 * @dev Required interface of an ERC721 compliant contract.
 */
interface IERC721 is IERC165 {
    /**
     * @dev Emitted when `tokenId` token is transferred from `from` to `to`.
     */
    event Transfer(address indexed from, address indexed to, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables `approved` to manage the `tokenId` token.
     */
    event Approval(address indexed owner, address indexed approved, uint256 indexed tokenId);

    /**
     * @dev Emitted when `owner` enables or disables (`approved`) `operator` to manage all of its assets.
     */
    event ApprovalForAll(address indexed owner, address indexed operator, bool approved);

    /**
     * @dev Returns the number of tokens in ``owner``'s account.
     */
    function balanceOf(address owner) external view returns (uint256 balance);

    /**
     * @dev Returns the owner of the `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function ownerOf(uint256 tokenId) external view returns (address owner);

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId, bytes calldata data) external;

    /**
     * @dev Safely transfers `tokenId` token from `from` to `to`, checking first that contract recipients
     * are aware of the ERC721 protocol to prevent tokens from being forever locked.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must exist and be owned by `from`.
     * - If the caller is not `from`, it must have been allowed to move this token by either {approve} or {setApprovalForAll}.
     * - If `to` refers to a smart contract, it must implement {IERC721Receiver-onERC721Received}, which is called upon a safe transfer.
     *
     * Emits a {Transfer} event.
     */
    function safeTransferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Transfers `tokenId` token from `from` to `to`.
     *
     * WARNING: Note that the caller is responsible to confirm that the recipient is capable of receiving ERC721
     * or else they may be permanently lost. Usage of {safeTransferFrom} prevents loss, though the caller must
     * understand this adds an external call which potentially creates a reentrancy vulnerability.
     *
     * Requirements:
     *
     * - `from` cannot be the zero address.
     * - `to` cannot be the zero address.
     * - `tokenId` token must be owned by `from`.
     * - If the caller is not `from`, it must be approved to move this token by either {approve} or {setApprovalForAll}.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 tokenId) external;

    /**
     * @dev Gives permission to `to` to transfer `tokenId` token to another account.
     * The approval is cleared when the token is transferred.
     *
     * Only a single account can be approved at a time, so approving the zero address clears previous approvals.
     *
     * Requirements:
     *
     * - The caller must own the token or be an approved operator.
     * - `tokenId` must exist.
     *
     * Emits an {Approval} event.
     */
    function approve(address to, uint256 tokenId) external;

    /**
     * @dev Approve or remove `operator` as an operator for the caller.
     * Operators can call {transferFrom} or {safeTransferFrom} for any token owned by the caller.
     *
     * Requirements:
     *
     * - The `operator` cannot be the caller.
     *
     * Emits an {ApprovalForAll} event.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns the account approved for `tokenId` token.
     *
     * Requirements:
     *
     * - `tokenId` must exist.
     */
    function getApproved(uint256 tokenId) external view returns (address operator);

    /**
     * @dev Returns if the `operator` is allowed to manage all of the assets of `owner`.
     *
     * See {setApprovalForAll}
     */
    function isApprovedForAll(address owner, address operator) external view returns (bool);
}

// File: @openzeppelin/contracts/interfaces/IERC721.sol


// OpenZeppelin Contracts v4.4.1 (interfaces/IERC721.sol)

pragma solidity ^0.8.0;


// File: @openzeppelin/contracts/proxy/Clones.sol


// OpenZeppelin Contracts (last updated v4.9.0) (proxy/Clones.sol)

pragma solidity ^0.8.0;

/**
 * @dev https://eips.ethereum.org/EIPS/eip-1167[EIP 1167] is a standard for
 * deploying minimal proxy contracts, also known as "clones".
 *
 * > To simply and cheaply clone contract functionality in an immutable way, this standard specifies
 * > a minimal bytecode implementation that delegates all calls to a known, fixed address.
 *
 * The library includes functions to deploy a proxy using either `create` (traditional deployment) or `create2`
 * (salted deterministic deployment). It also includes functions to predict the addresses of clones deployed using the
 * deterministic method.
 *
 * _Available since v3.4._
 */
library Clones {
    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create opcode, which should never revert.
     */
    function clone(address implementation) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create(0, 0x09, 0x37)
        }
        require(instance != address(0), "ERC1167: create failed");
    }

    /**
     * @dev Deploys and returns the address of a clone that mimics the behaviour of `implementation`.
     *
     * This function uses the create2 opcode and a `salt` to deterministically deploy
     * the clone. Using the same `implementation` and `salt` multiple time will revert, since
     * the clones cannot be deployed twice at the same address.
     */
    function cloneDeterministic(address implementation, bytes32 salt) internal returns (address instance) {
        /// @solidity memory-safe-assembly
        assembly {
            // Cleans the upper 96 bits of the `implementation` word, then packs the first 3 bytes
            // of the `implementation` address with the bytecode before the address.
            mstore(0x00, or(shr(0xe8, shl(0x60, implementation)), 0x3d602d80600a3d3981f3363d3d373d3d3d363d73000000))
            // Packs the remaining 17 bytes of `implementation` with the bytecode after the address.
            mstore(0x20, or(shl(0x78, implementation), 0x5af43d82803e903d91602b57fd5bf3))
            instance := create2(0, 0x09, 0x37, salt)
        }
        require(instance != address(0), "ERC1167: create2 failed");
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt,
        address deployer
    ) internal pure returns (address predicted) {
        /// @solidity memory-safe-assembly
        assembly {
            let ptr := mload(0x40)
            mstore(add(ptr, 0x38), deployer)
            mstore(add(ptr, 0x24), 0x5af43d82803e903d91602b57fd5bf3ff)
            mstore(add(ptr, 0x14), implementation)
            mstore(ptr, 0x3d602d80600a3d3981f3363d3d373d3d3d363d73)
            mstore(add(ptr, 0x58), salt)
            mstore(add(ptr, 0x78), keccak256(add(ptr, 0x0c), 0x37))
            predicted := keccak256(add(ptr, 0x43), 0x55)
        }
    }

    /**
     * @dev Computes the address of a clone deployed using {Clones-cloneDeterministic}.
     */
    function predictDeterministicAddress(
        address implementation,
        bytes32 salt
    ) internal view returns (address predicted) {
        return predictDeterministicAddress(implementation, salt, address(this));
    }
}

// File: @openzeppelin/contracts/token/ERC20/IERC20.sol


// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

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

// File: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol


// OpenZeppelin Contracts (last updated v4.9.3) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;




/**
 * @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 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.encodeWithSelector(token.transfer.selector, 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.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));
    }

    /**
     * @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);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    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");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @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.encodeWithSelector(token.approve.selector, spender, value);

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

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @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");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @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.isContract(address(token));
    }
}

// File: OpenPeerEscrow.sol


pragma solidity ^0.8.17;







contract OpenPeerEscrow is ERC2771Context, Initializable {
    using SafeERC20 for IERC20;
    mapping(bytes32 => Escrow) public escrows;

    address payable public seller;
    address public deployer;
    address public arbitrator;
    address payable public feeRecipient;
    address public feeDiscountNFT;
    uint256 public feeBps;
    uint256 public immutable disputeFee = 0.001 ether;
    mapping(bytes32 => mapping(address => bool)) public disputePayments;

    /**********************
    +   Events            +
    ***********************/
    event EscrowCreated(bytes32 indexed _orderHash);
    event Released(bytes32 indexed _orderHash);
    event CancelledByBuyer(bytes32 indexed _orderHash);
    event SellerCancelDisabled(bytes32 indexed _orderHash);
    event CancelledBySeller(bytes32 indexed _orderHash);
    event DisputeOpened(bytes32 indexed _orderHash, address indexed _sender);
    event DisputeResolved(bytes32 indexed _orderHash, address indexed _winner);

    struct Escrow {
        // So we know the escrow exists
        bool exists;
        // This is the timestamp in which the seller can cancel the escrow after.
        // It has a special value:
        // 1 : Permanently locked by the buyer (i.e. marked as paid; the seller can never cancel)
        uint32 sellerCanCancelAfter;
        uint256 fee;
        bool dispute;
        address payable partner;
        uint256 openPeerFee;
    }

    /// @param _trustedForwarder Forwarder address
    constructor(address _trustedForwarder) ERC2771Context(_trustedForwarder) {
        _disableInitializers();
    }

    /// @param _seller Seller address
    /// @param _feeBps OP fee (bps) ex: 30 == 0.3%
    /// @param _arbitrator Address of the arbitrator (currently OP staff)
    /// @param _feeRecipient Address to receive the fees
    /// @param trustedForwarder Forwarder address
    function initialize(
        address payable _seller,
        uint256 _feeBps,
        address _arbitrator,
        address payable _feeRecipient,
        address trustedForwarder,
        address _feeDiscountNFT
    ) external virtual initializer {
        require(_seller != address(0), "Invalid seller");
        require(_feeRecipient != address(0), "Invalid fee recipient");
        require(_arbitrator != address(0), "Invalid arbitrator");
        require(trustedForwarder != address(0), "Invalid trust forwarder");

        seller = _seller;
        feeBps = _feeBps;
        arbitrator = _arbitrator;
        feeRecipient = _feeRecipient;
        _trustedForwarder = trustedForwarder;
        feeDiscountNFT = _feeDiscountNFT;
        deployer = _msgSender();
    }

    // Modifiers
    modifier onlySeller() {
        require(_msgSender() == seller, "Must be seller");
        _;
    }

    modifier onlyArbitrator() {
        require(_msgSender() == arbitrator, "Must be arbitrator");
        _;
    }

    // Errors
    error EscrowNotFound();

    function createNativeEscrow(
        bytes32 _orderID,
        address payable _buyer,
        uint256 _amount,
        address payable _partner,
        uint32 _sellerWaitingTime
    ) external payable {
        create(
            _orderID,
            _buyer,
            address(0),
            _amount,
            _partner,
            _sellerWaitingTime
        );
    }

    function createERC20Escrow(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount,
        address payable _partner,
        uint32 _sellerWaitingTime
    ) external {
        create(_orderID, _buyer, _token, _amount, _partner, _sellerWaitingTime);
    }

    function create(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount,
        address payable _partner,
        uint32 _sellerWaitingTime
    ) private {
        require(_amount > 0, "Invalid amount");
        require(_buyer != address(0), "Invalid buyer");
        require(_buyer != seller, "Seller and buyer must be different");
        require(
            _sellerWaitingTime >= 15 minutes && _sellerWaitingTime <= 1 days,
            "Invalid seller waiting time"
        );

        bytes32 _orderHash = keccak256(
            abi.encodePacked(_orderID, seller, _buyer, _token, _amount)
        );
        require(!escrows[_orderHash].exists, "Order already exists");

        uint256 opFee = ((_amount * openPeerFee()) / 10_000);
        uint256 orderFee = ((_amount * sellerFee(_partner)) / 10_000);
        uint256 amount = orderFee + _amount;

        if (_token == address(0)) {
            require(msg.value == amount, "Incorrect MATIC sent");
        } else {
            uint256 balanceBefore = IERC20(_token).balanceOf(address(this));
            IERC20(_token).safeTransferFrom(
                _msgSender(),
                address(this),
                amount
            );
            uint256 balanceAfter = IERC20(_token).balanceOf(address(this));
            require(
                (balanceAfter - balanceBefore) == amount,
                "Wrong ERC20 amount"
            );
        }

        Escrow memory escrow = Escrow(
            true,
            uint32(block.timestamp) + _sellerWaitingTime,
            orderFee,
            false,
            _partner,
            opFee
        );
        escrows[_orderHash] = escrow;
        emit EscrowCreated(_orderHash);
    }

    /// @notice Disable the seller from cancelling
    /// @return bool
    function markAsPaid(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount
    ) external returns (bool) {
        require(_msgSender() == _buyer, "Must be buyer");

        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }
        if (_escrow.sellerCanCancelAfter == 1) return false;

        escrows[_orderHash].sellerCanCancelAfter = 1;
        emit SellerCancelDisabled(_orderHash);
        return true;
    }

    /// @notice Release ether or token in escrow to the buyer.
    /// @return bool
    function release(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount
    ) external onlySeller returns (bool) {
        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }

        transferEscrowAndFees(
            _orderHash,
            _buyer,
            _token,
            _buyer,
            _amount,
            _escrow.fee,
            _escrow.partner,
            _escrow.openPeerFee,
            false
        );
        emit Released(_orderHash);
        return true;
    }

    /// @notice Cancel the escrow as a buyer with 0 fees
    /// @return bool
    function buyerCancel(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount
    ) external returns (bool) {
        require(_msgSender() == _buyer, "Must be buyer");

        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }

        transferEscrowAndFees(
            _orderHash,
            _buyer,
            _token,
            seller,
            _amount + _escrow.fee,
            0,
            _escrow.partner,
            0,
            false
        );
        emit CancelledByBuyer(_orderHash);
        return true;
    }

    /// @notice Cancel the escrow as a seller
    /// @return bool
    function sellerCancel(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount
    ) external onlySeller returns (bool) {
        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }

        if (
            _escrow.sellerCanCancelAfter <= 1 ||
            _escrow.sellerCanCancelAfter > block.timestamp
        ) {
            return false;
        }

        transferEscrowAndFees(
            _orderHash,
            _buyer,
            _token,
            seller,
            _amount + _escrow.fee,
            0,
            _escrow.partner,
            0,
            false
        );
        emit CancelledBySeller(_orderHash);
        return true;
    }

    /// @notice Allow seller or buyer to open a dispute
    function openDispute(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount
    ) external payable returns (bool) {
        require(
            _msgSender() == seller || _msgSender() == _buyer,
            "Must be seller or buyer"
        );
        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }

        require(_escrow.sellerCanCancelAfter == 1, "Cannot open a dispute yet");
        require(
            msg.value == disputeFee,
            "To open a dispute, you must pay 1 MATIC"
        );
        require(
            !disputePayments[_orderHash][_msgSender()],
            "This address already paid for the dispute"
        );

        escrows[_orderHash].dispute = true;
        disputePayments[_orderHash][_msgSender()] = true;
        emit DisputeOpened(_orderHash, _msgSender());
        return true;
    }

    /// @notice Allow arbitrator to resolve a dispute
    /// @param _winner Address to receive the escrowed values - fees
    function resolveDispute(
        bytes32 _orderID,
        address payable _buyer,
        address _token,
        uint256 _amount,
        address payable _winner
    ) external onlyArbitrator returns (bool) {
        Escrow memory _escrow;
        bytes32 _orderHash;
        (_escrow, _orderHash) = getEscrowAndHash(
            _orderID,
            _buyer,
            _token,
            _amount
        );
        if (!_escrow.exists) {
            revert EscrowNotFound();
        }

        require(_escrow.dispute, "Dispute is not open");
        require(
            _winner == seller || _winner == _buyer,
            "Winner must be seller or buyer"
        );

        emit DisputeResolved(_orderHash, _winner);
        transferEscrowAndFees(
            _orderHash,
            _buyer,
            _token,
            _winner,
            _amount,
            _escrow.fee,
            _escrow.partner,
            _escrow.openPeerFee,
            true
        );
        return true;
    }

    /// @notice Transfer the value of an escrow
    /// @param _to Recipient address
    /// @param _amount Amount to be transfered
    /// @param _fee Fee to be transfered
    /// @param _disputeResolution Is a dispute being resolved?
    function transferEscrowAndFees(
        bytes32 _orderHash,
        address payable _buyer,
        address _token,
        address payable _to,
        uint256 _amount,
        uint256 _fee,
        address payable _partner,
        uint256 _openPeerFee,
        bool _disputeResolution
    ) private {
        delete escrows[_orderHash];
        bool sellerPaid = disputePayments[_orderHash][seller];
        bool buyerPaid = disputePayments[_orderHash][_buyer];
        delete disputePayments[_orderHash][seller];
        delete disputePayments[_orderHash][_buyer];

        // transfers the amount to the seller | buyer
        withdraw(_token, _to, _amount);
        if (_openPeerFee > 0) {
            // transfers the OP fee to the fee recipient
            withdraw(_token, feeRecipient, _openPeerFee);
        }

        if (_fee - _openPeerFee > 0) {
            // transfers the OP fee to the fee recipient
            withdraw(_token, _partner, _fee - _openPeerFee);
        }

        if (_disputeResolution) {
            (bool sentToWinner, ) = _to.call{value: disputeFee}("");
            require(sentToWinner, "Failed to send the fee MATIC to the winner");

            if (sellerPaid && buyerPaid) {
                (bool sent, ) = feeRecipient.call{value: disputeFee}("");
                require(
                    sent,
                    "Failed to send the fee MATIC to the fee recipient"
                );
            }
        } else if (sellerPaid && !buyerPaid) {
            // only the seller paid for the dispute, returns the fee to the seller
            (bool sent, ) = seller.call{value: disputeFee}("");
            require(sent, "Failed to send the fee MATIC to the seller");
        } else if (buyerPaid && !sellerPaid) {
            // only the buyer paid for the dispute, returns the fee to the buyer
            (bool sent, ) = _buyer.call{value: disputeFee}("");
            require(sent, "Failed to send the fee MATIC to the buyer");
        } else if (buyerPaid && sellerPaid) {
            // seller and buyer paid for the dispute, split the fee between the winner and the fee recipient
            (bool sentToWinner, ) = _to.call{value: disputeFee}("");
            require(sentToWinner, "Failed to send the fee MATIC to winner");

            (bool sent, ) = feeRecipient.call{value: disputeFee}("");
            require(sent, "Failed to send the fee MATIC to the fee recipient");
        }
    }

    /// @notice Withdraw values in the contract
    /// @param _token Address of the token to withdraw fees in to
    /// @param _to Address to withdraw fees in to
    /// @param _amount Amount to withdraw
    function withdraw(
        address _token,
        address payable _to,
        uint256 _amount
    ) private {
        if (_token == address(0)) {
            (bool sent, ) = _to.call{value: _amount}("");
            require(sent, "Failed to send MATIC");
        } else {
            require(
                IERC20(_token).transfer(_to, _amount),
                "Failed to send tokens"
            );
        }
    }

    /// @notice Version recipient
    function versionRecipient() external pure returns (string memory) {
        return "1.0";
    }

    /// @notice Hashes the values and returns the matching escrow object and trade hash.
    /// @dev Returns an empty escrow struct and 0 _orderHash if not found.
    /// @param _orderID Escrow "_orderID" parameter
    /// @param _buyer Escrow "buyer" parameter
    /// @param _token Escrow "token" parameter
    /// @param _amount Escrow "amount" parameter
    /// @return Escrow
    function getEscrowAndHash(
        bytes32 _orderID,
        address _buyer,
        address _token,
        uint256 _amount
    ) private view returns (Escrow memory, bytes32) {
        bytes32 _orderHash = keccak256(
            abi.encodePacked(_orderID, seller, _buyer, _token, _amount)
        );
        return (escrows[_orderHash], _orderHash);
    }

    /***********************
    +   Getters           +
    ***********************/

    function openPeerFee() public view returns (uint256) {
        IERC721 discountNFT = IERC721(feeDiscountNFT);

        if (
            feeDiscountNFT != address(0) &&
            discountNFT.balanceOf(_msgSender()) > 0
        ) {
            return 0;
        }

        return feeBps;
    }

    function sellerFee(address _partner) public view returns (uint256) {
        return
            openPeerFee() + IOpenPeerDeployer(deployer).partnerFeeBps(_partner);
    }
}

// File: OpenPeerEscrowsDeployer.sol


pragma solidity ^0.8.17;







contract OpenPeerEscrowsDeployer is ERC2771Context, Ownable {
    mapping(address => address) public sellerContracts;
    mapping(address => uint256) public partnerFeeBps;

    /***********************
    +   Global settings   +
    ***********************/
    address public arbitrator;
    address payable public feeRecipient;
    uint256 private fee;

    bool public stopped;

    address public implementation;

    // NFT contract for fee discounts
    address public feeDiscountNFT;

    /**********************
    +   Events            +
    ***********************/
    event ContractCreated(address _seller, address _deployment);

    /// @notice Settings
    /// @param _arbitrator Address of the arbitrator (currently OP staff)
    /// @param _feeRecipient Address to receive the fees
    /// @param _fee OP fee (bps) ex: 30 == 0.3%
    /// @param _trustedForwarder Forwarder address
    /// @param _feeDiscountNFT NFT contract for fee discounts
    constructor(
        address _arbitrator,
        address payable _feeRecipient,
        uint256 _fee,
        address _trustedForwarder,
        address _feeDiscountNFT
    ) ERC2771Context(_trustedForwarder) {
        arbitrator = _arbitrator;
        feeRecipient = _feeRecipient;
        fee = _fee;
        feeDiscountNFT = _feeDiscountNFT;
        implementation = address(new OpenPeerEscrow(_trustedForwarder));
    }

    /***********************
    +   Modifiers          +
    ***********************/

    // circuit breaker modifiers
    modifier stopInEmergency() {
        if (stopped) {
            revert("Paused");
        } else {
            _;
        }
    }

    function deploy() external returns (address) {
        address deployment = Clones.clone(implementation);
        OpenPeerEscrow(payable(deployment)).initialize(
            payable(_msgSender()),
            fee,
            arbitrator,
            feeRecipient,
            _trustedForwarder,
            feeDiscountNFT
        );
        sellerContracts[_msgSender()] = deployment;
        emit ContractCreated(_msgSender(), deployment);

        return deployment;
    }

    /***********************
    +   Setters           +
    ***********************/

    /// @notice Updates the arbitrator
    /// @param _arbitrator Address of the arbitrator
    function setArbitrator(address _arbitrator) public onlyOwner {
        require(_arbitrator != address(0), "Invalid arbitrator");
        arbitrator = _arbitrator;
    }

    /// @notice Updates the fee recipient
    /// @param _feeRecipient Address of the arbitrator
    function setFeeRecipient(address payable _feeRecipient) public onlyOwner {
        require(_feeRecipient != address(0), "Invalid fee recipient");
        feeRecipient = _feeRecipient;
    }

    /// @notice Updates the fee
    /// @param _fee fee amount (bps)
    function setFee(uint256 _fee) public onlyOwner {
        require(_fee <= 100);

        fee = _fee;
    }

    /// @notice Updates the forwarder
    /// @param trustedForwarder biconomy forwarder
    function setTrustedForwarder(address trustedForwarder) external onlyOwner {
        require(trustedForwarder != address(0), "Invalid trust forwarder");
        _trustedForwarder = trustedForwarder;
    }

    /// @notice Updates the implementation
    /// @param _implementation Address of the implementation
    function setImplementation(
        address payable _implementation
    ) public onlyOwner {
        require(_implementation != address(0), "Invalid implementation");
        implementation = _implementation;
    }

    /// @notice Pauses and activate the contract
    function toggleContractActive() public onlyOwner {
        stopped = !stopped;
    }

    /// @notice Version recipient
    function versionRecipient() external pure returns (string memory) {
        return "1.0";
    }

    /// @notice Updates the NFT contract for fee discounts
    function setFeeDiscountNFT(address _feeDiscountNFT) external onlyOwner {
        feeDiscountNFT = _feeDiscountNFT;
    }

    function updatePartnerFeeBps(
        address[] calldata _partners,
        uint256[] calldata _fees
    ) external onlyOwner {
        require(_partners.length == _fees.length, "Invalid input");

        for (uint256 i = 0; i < _partners.length; i++) {
            require(_fees[i] <= 100, "Invalid fee bps");
            require(_partners[i] != address(0), "Invalid partner address");

            partnerFeeBps[_partners[i]] = _fees[i];
        }
    }

    /***********************
    +   Getters           +
    ***********************/

    function openPeerFee() public view returns (uint256) {
        IERC721 discountNFT = IERC721(feeDiscountNFT);

        if (
            feeDiscountNFT != address(0) &&
            discountNFT.balanceOf(_msgSender()) > 0
        ) {
            return 0;
        }

        return fee;
    }

    function sellerFee(address _partner) public view returns (uint256) {
        return openPeerFee() + partnerFeeBps[_partner];
    }
}

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Contract ABI

API

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Contract Creation Code

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Constructor Arguments (ABI-Encoded and is the last bytes of the Contract Creation Code above)

000000000000000000000000630220d00cf136270f553c8577af18300f7b812c000000000000000000000000e872e7e3664f6ae78b62b360aca667877bfef088000000000000000000000000000000000000000000000000000000000000001e00000000000000000000000084a0856b038eaad1cc7e297cf34a7e72685a86930000000000000000000000000000000000000000000000000000000000000000

-----Decoded View---------------
Arg [0] : _arbitrator (address): 0x630220d00Cf136270f553c8577aF18300F7b812c
Arg [1] : _feeRecipient (address): 0xe872E7E3664F6AE78b62B360ACa667877bfEf088
Arg [2] : _fee (uint256): 30
Arg [3] : _trustedForwarder (address): 0x84a0856b038eaAd1cC7E297cF34A7e72685A8693
Arg [4] : _feeDiscountNFT (address): 0x0000000000000000000000000000000000000000

-----Encoded View---------------
5 Constructor Arguments found :
Arg [0] : 000000000000000000000000630220d00cf136270f553c8577af18300f7b812c
Arg [1] : 000000000000000000000000e872e7e3664f6ae78b62b360aca667877bfef088
Arg [2] : 000000000000000000000000000000000000000000000000000000000000001e
Arg [3] : 00000000000000000000000084a0856b038eaad1cc7e297cf34a7e72685a8693
Arg [4] : 0000000000000000000000000000000000000000000000000000000000000000

Deployed Bytecode Sourcemap

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Swarm Source

ipfs://5a7a56027b6753248e5787c3bb2b812f124fb3986819251d4d62ac42db64b3e2

Block		Transaction	Difficulty	Gas Used	Reward

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Block		Uncle Number	Difficulty	Gas Used	Reward

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Validator Index	Block		Amount

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Transaction Hash	Block		Value	Eth2 PubKey	Valid

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Multichain Portfolio | 35 Chains

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Last updated: less than 1 sec ago

Chain	Token	Portfolio %	Price	Amount	Value

A contract address hosts a smart contract, which is a set of code stored on the blockchain that runs when predetermined conditions are met. Learn more about addresses in our Knowledge Base.

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