{
  "language": "Solidity",
  "sources": {
    "contracts/interfaces/IInterestRateCredit.sol": {
      "content": "pragma solidity ^0.8.9;\n\ninterface IInterestRateCredit {\n    struct Rate {\n        // The interest rate charged to a Borrower on borrowed / drawn down funds\n        // in bps, 4 decimals\n        uint128 dRate;\n        // The interest rate charged to a Borrower on the remaining funds available, but not yet drawn down (rate charged on the available headroom)\n        // in bps, 4 decimals\n        uint128 fRate;\n        // The time stamp at which accrued interest was last calculated on an ID and then added to the overall interestAccrued (interest due but not yet repaid)\n        uint256 lastAccrued;\n    }\n\n    /**\n     * @notice - allows `lineContract to calculate how much interest is owed since it was last calculated charged at time `lastAccrued`\n     * @dev    - pure function that only calculates interest owed. Line is responsible for actually updating credit balances with returned value\n     * @dev    - callable by `lineContract`\n     * @param id - position id on Line to look up interest rates for\n     * @param drawnBalance the balance of funds that a Borrower has drawn down on the credit line\n     * @param facilityBalance the remaining balance of funds that a Borrower can still drawn down on a credit line (aka headroom)\n     *\n     * @return - the amount of interest to be repaid for this interest period\n     */\n    function accrueInterest(bytes32 id, uint256 drawnBalance, uint256 facilityBalance) external returns (uint256);\n\n    /**\n     * @notice - updates interest rates on a lender's position. Updates lastAccrued time to block.timestamp\n     * @dev    - MUST call accrueInterest() on Line before changing rates. If not, lender will not accrue interest over previous interest period.\n     * @dev    - callable by `line`\n     * @return - if call was successful or not\n     */\n    function setRate(bytes32 id, uint128 dRate, uint128 fRate) external returns (bool);\n}\n"
    },
    "contracts/interfaces/ILineOfCredit.sol": {
      "content": "pragma solidity 0.8.9;\n\nimport {LineLib} from \"../utils/LineLib.sol\";\nimport {IOracle} from \"../interfaces/IOracle.sol\";\n\ninterface ILineOfCredit {\n    // Lender data\n    struct Credit {\n        //  all denominated in token, not USD\n        uint256 deposit; // The total liquidity provided by a Lender in a given token on a Line of Credit\n        uint256 principal; // The amount of a Lender's Deposit on a Line of Credit that has actually been drawn down by the Borrower (USD)\n        uint256 interestAccrued; // Interest due by a Borrower but not yet repaid to the Line of Credit contract\n        uint256 interestRepaid; // Interest repaid by a Borrower to the Line of Credit contract but not yet withdrawn by a Lender\n        uint8 decimals; // Decimals of Credit Token for calcs\n        address token; // The token being lent out (Credit Token)\n        address lender; // The person to repay\n        bool isOpen; // Status of position\n    }\n\n    // General Events\n    event UpdateStatus(uint256 indexed status); // store as normal uint so it can be indexed in subgraph\n\n    event DeployLine(address indexed oracle, address indexed arbiter, address indexed borrower);\n\n    // MutualConsent borrower/lender events\n\n    event AddCredit(address indexed lender, address indexed token, uint256 indexed deposit, bytes32 id);\n    // can only reference id once AddCredit is emitted because it will be indexed offchain\n\n    event SetRates(bytes32 indexed id, uint128 indexed dRate, uint128 indexed fRate);\n\n    event IncreaseCredit(bytes32 indexed id, uint256 indexed deposit);\n\n    // Lender Events\n\n    // Emits data re Lender removes funds (principal) - there is no corresponding function, just withdraw()\n    event WithdrawDeposit(bytes32 indexed id, uint256 indexed amount);\n\n    // Emits data re Lender withdraws interest - there is no corresponding function, just withdraw()\n    event WithdrawProfit(bytes32 indexed id, uint256 indexed amount);\n\n    // Emitted when any credit line is closed by the line's borrower or the position's lender\n    event CloseCreditPosition(bytes32 indexed id);\n\n    // After accrueInterest runs, emits the amount of interest added to a Borrower's outstanding balance of interest due\n    // but not yet repaid to the Line of Credit contract\n    event InterestAccrued(bytes32 indexed id, uint256 indexed amount);\n\n    // Borrower Events\n\n    // receive full line or drawdown on credit\n    event Borrow(bytes32 indexed id, uint256 indexed amount);\n\n    // Emits that a Borrower has repaid an amount of interest Results in an increase in interestRepaid, i.e. interest not yet withdrawn by a Lender). There is no corresponding function\n    event RepayInterest(bytes32 indexed id, uint256 indexed amount);\n\n    // Emits that a Borrower has repaid an amount of principal - there is no corresponding function\n    event RepayPrincipal(bytes32 indexed id, uint256 indexed amount);\n\n    event Default(bytes32 indexed id);\n\n    // Access Errors\n    error NotActive();\n    error NotBorrowing();\n    error CallerAccessDenied();\n\n    // Tokens\n    error TokenTransferFailed();\n    error NoTokenPrice();\n\n    // Line\n    error BadModule(address module);\n    error NoLiquidity();\n    error PositionExists();\n    error CloseFailedWithPrincipal();\n    error NotInsolvent(address module);\n    error NotLiquidatable();\n    error AlreadyInitialized();\n    error PositionIsClosed();\n    error RepayAmountExceedsDebt(uint256 totalAvailable);\n    error CantStepQ();\n\n    // Fully public functions\n\n    function init() external returns (LineLib.STATUS);\n\n    // MutualConsent functions\n\n    /**\n    * @notice        - On first call, creates proposed terms and emits MutualConsentRegistsered event. No position is created.\n                      - On second call, creates position and stores in Line contract, sets interest rates, and starts accruing facility rate fees.\n    * @dev           - Requires mutualConsent participants send EXACT same params when calling addCredit\n    * @dev           - Fully executes function after a Borrower and a Lender have agreed terms, both Lender and borrower have agreed through mutualConsent\n    * @dev           - callable by `lender` and `borrower`\n    * @param drate   - The interest rate charged to a Borrower on borrowed / drawn down funds. In bps, 4 decimals.\n    * @param frate   - The interest rate charged to a Borrower on the remaining funds available, but not yet drawn down \n                        (rate charged on the available headroom). In bps, 4 decimals.\n    * @param amount  - The amount of Credit Token to initially deposit by the Lender\n    * @param token   - The Credit Token, i.e. the token to be lent out\n    * @param lender  - The address that will manage credit line\n    * @return id     - Lender's position id to look up in `credits`\n  */\n    function addCredit(\n        uint128 drate,\n        uint128 frate,\n        uint256 amount,\n        address token,\n        address lender\n    ) external payable returns (bytes32);\n\n    /**\n     * @notice           - lets Lender and Borrower update rates on the lender's position\n     *                   - accrues interest before updating terms, per InterestRate docs\n     *                   - can do so even when LIQUIDATABLE for the purpose of refinancing and/or renego\n     * @dev              - callable by Borrower or Lender\n     * @param id         - position id that we are updating\n     * @param drate      - new drawn rate. In bps, 4 decimals\n     * @param frate      - new facility rate. In bps, 4 decimals\n     * @return - if function executed successfully\n     */\n    function setRates(bytes32 id, uint128 drate, uint128 frate) external returns (bool);\n\n    /**\n     * @notice           - Lets a Lender and a Borrower increase the credit limit on a position\n     * @dev              - line status must be ACTIVE\n     * @dev              - callable by borrower\n     * @param id         - position id that we are updating\n     * @param amount     - amount to deposit by the Lender\n     * @return - if function executed successfully\n     */\n    function increaseCredit(bytes32 id, uint256 amount) external payable returns (bool);\n\n    // Borrower functions\n\n    /**\n     * @notice       - Borrower chooses which lender position draw down on and transfers tokens from Line contract to Borrower\n     * @dev          - callable by borrower\n     * @param id     - the position to draw down on\n     * @param amount - amount of tokens the borrower wants to withdraw\n     * @return - if function executed successfully\n     */\n    function borrow(bytes32 id, uint256 amount) external returns (bool);\n\n    /**\n     * @notice       - Transfers token used in position id from msg.sender to Line contract.\n     * @dev          - Available for anyone to deposit Credit Tokens to be available to be withdrawn by Lenders\n     * @notice       - see LineOfCredit._repay() for more details\n     * @param amount - amount of `token` in `id` to pay back\n     * @return - if function executed successfully\n     */\n    function depositAndRepay(uint256 amount) external payable returns (bool);\n\n    /**\n     * @notice       - A Borrower deposits enough tokens to repay and close a credit line.\n     * @dev          - callable by borrower\n     * @return - if function executed successfully\n     */\n    function depositAndClose() external payable returns (bool);\n\n    /**\n     * @notice - Removes and deletes a position, preventing any more borrowing or interest.\n     *         - Requires that the position principal has already been repais in full\n     * @dev      - MUST repay accrued interest from facility fee during call\n     * @dev - callable by `borrower` or Lender\n     * @param id -the position id to be closed\n     * @return - if function executed successfully\n     */\n    function close(bytes32 id) external payable returns (bool);\n\n    // Lender functions\n\n    /**\n     * @notice - Withdraws liquidity from a Lender's position available to the Borrower.\n     *         - Lender is only allowed to withdraw tokens not already lent out\n     *         - Withdraws from repaid interest (profit) first and then deposit is reduced\n     * @dev - can only withdraw tokens from their own position. If multiple lenders lend DAI, the lender1 can't withdraw using lender2's tokens\n     * @dev - callable by Lender on `id`\n     * @param id - the position id that Lender is withdrawing from\n     * @param amount - amount of tokens the Lender would like to withdraw (withdrawn amount may be lower)\n     * @return - if function executed successfully\n     */\n    function withdraw(bytes32 id, uint256 amount) external returns (bool);\n\n    // Arbiter functions\n    /**\n     * @notice - Allow the Arbiter to signify that the Borrower is incapable of repaying debt permanently.\n     *         - Recoverable funds for Lender after declaring insolvency = deposit + interestRepaid - principal\n     * @dev    - Needed for onchain impairment accounting e.g. updating ERC4626 share price\n     *         - MUST NOT have collateral left for call to succeed. Any collateral must already have been liquidated.\n     * @dev    - Callable only by Arbiter.\n     * @return bool - If Borrower has been declared insolvent or not\n     */\n    function declareInsolvent() external returns (bool);\n\n    /**\n     *\n     * @notice - Updates accrued interest for the whole Line of Credit facility (i.e. for all credit lines)\n     * @dev    - Loops over all position ids and calls related internal functions during which InterestRateCredit.sol\n     *           is called with the id data and then 'interestAccrued' is updated.\n     * @dev    - The related internal function _accrue() is called by other functions any time the balance on an individual\n     *           credit line changes or if the interest rates of a credit line are changed by mutual consent\n     *           between a Borrower and a Lender.\n     * @return - if function executed successfully\n     */\n    function accrueInterest() external returns (bool);\n\n    function healthcheck() external returns (LineLib.STATUS);\n\n    /**\n     * @notice - Cycles through position ids andselects first position with non-null principal to the zero index\n     * @dev - Only works if the first element in the queue is null\n     * @return bool - if call suceeded or not\n     */\n    function stepQ() external returns (bool);\n\n    /**\n     * @notice - Returns the total debt of a Borrower across all positions for all Lenders.\n     * @dev    - Denominated in USD, 8 decimals.\n     * @dev    - callable by anyone\n     * @return totalPrincipal - total amount of principal, in USD, owed across all positions\n     * @return totalInterest - total amount of interest, in USD,  owed across all positions\n     */\n    function updateOutstandingDebt() external returns (uint256, uint256);\n\n    // State getters\n\n    function status() external returns (LineLib.STATUS);\n\n    function borrower() external returns (address);\n\n    function arbiter() external returns (address);\n\n    function oracle() external returns (IOracle);\n\n    /**\n     * @notice - getter for amount of active ids + total ids in list\n     * @return - (uint, uint) - active credit lines, total length\n     */\n    function counts() external view returns (uint256, uint256);\n}\n"
    },
    "contracts/interfaces/IOracle.sol": {
      "content": "pragma solidity 0.8.9;\n\ninterface IOracle {\n    /** current price for token asset. denominated in USD */\n    function getLatestAnswer(address token) external returns (int);\n}\n"
    },
    "contracts/utils/LineLib.sol": {
      "content": "pragma solidity 0.8.9;\nimport {IInterestRateCredit} from \"../interfaces/IInterestRateCredit.sol\";\nimport {ILineOfCredit} from \"../interfaces/ILineOfCredit.sol\";\nimport {IOracle} from \"../interfaces/IOracle.sol\";\nimport {IERC20} from \"openzeppelin/token/ERC20/IERC20.sol\";\nimport {SafeERC20} from \"openzeppelin/token/ERC20/utils/SafeERC20.sol\";\nimport {Denominations} from \"chainlink/Denominations.sol\";\n\n/**\n * @title Debt DAO Line of Credit Library\n * @author Kiba Gateaux\n * @notice Core logic and variables to be reused across all Debt DAO Marketplace Line of Credit contracts\n */\nlibrary LineLib {\n    using SafeERC20 for IERC20;\n\n    error EthSentWithERC20();\n    error TransferFailed();\n    error SendingEthFailed();\n    error RefundEthFailed();\n\n    error BadToken();\n\n    event RefundIssued(address indexed recipient, uint256 value);\n\n    enum STATUS {\n        UNINITIALIZED,\n        ACTIVE,\n        LIQUIDATABLE,\n        REPAID,\n        INSOLVENT\n    }\n\n    /**\n     * @notice - Send ETH or ERC20 token from this contract to an external contract\n     * @param token - address of token to send out. Denominations.ETH for raw ETH\n     * @param receiver - address to send tokens to\n     * @param amount - amount of tokens to send\n     */\n    function sendOutTokenOrETH(address token, address receiver, uint256 amount) external returns (bool) {\n        if (token == address(0)) {\n            revert TransferFailed();\n        }\n\n        // both branches revert if call failed\n        if (token != Denominations.ETH) {\n            // ERC20\n            IERC20(token).safeTransfer(receiver, amount);\n        } else {\n            // ETH\n            bool success = _safeTransferFunds(receiver, amount);\n            if (!success) {\n                revert SendingEthFailed();\n            }\n        }\n        return true;\n    }\n\n    /**\n     * @notice - Receive ETH or ERC20 token at this contract from an external contract\n     * @dev    - If the sender overpays, the difference will be refunded to the sender\n     * @dev    - If the sender is unable to receive the refund, it will be diverted to the calling contract\n     * @param token - address of token to receive. Denominations.ETH for raw ETH\n     * @param sender - address that is sendingtokens/ETH\n     * @param amount - amount of tokens to send\n     */\n    function receiveTokenOrETH(address token, address sender, uint256 amount) external returns (bool) {\n        if (token == address(0)) {\n            revert TransferFailed();\n        }\n        if (token != Denominations.ETH) {\n            // ERC20\n            if (msg.value > 0) {\n                revert EthSentWithERC20();\n            }\n            IERC20(token).safeTransferFrom(sender, address(this), amount);\n        } else {\n            // ETH\n            if (msg.value < amount) {\n                revert TransferFailed();\n            }\n\n            if (msg.value > amount) {\n                uint256 refund = msg.value - amount;\n\n                if (_safeTransferFunds(msg.sender, refund)) {\n                    emit RefundIssued(msg.sender, refund);\n                }\n            }\n        }\n        return true;\n    }\n\n    /**\n     * @notice - Helper function to get current balance of this contract for ERC20 or ETH\n     * @param token - address of token to check. Denominations.ETH for raw ETH\n     */\n    function getBalance(address token) external view returns (uint256) {\n        if (token == address(0)) return 0;\n        return token != Denominations.ETH ? IERC20(token).balanceOf(address(this)) : address(this).balance;\n    }\n\n    /**\n     * @notice  - Helper function to safely transfer Eth using native call\n     * @dev     - Errors should be handled in the calling function\n     * @param recipient - address of the recipient\n     * @param value - value to be sent (in wei)\n     */\n    function _safeTransferFunds(address recipient, uint256 value) internal returns (bool success) {\n        (success, ) = payable(recipient).call{value: value}(\"\");\n    }\n}\n"
    },
    "lib/chainlink/contracts/src/v0.8/Denominations.sol": {
      "content": "// SPDX-License-Identifier: MIT\n\npragma solidity ^0.8.0;\n\nlibrary Denominations {\n  address public constant ETH = 0xEeeeeEeeeEeEeeEeEeEeeEEEeeeeEeeeeeeeEEeE;\n  address public constant BTC = 0xbBbBBBBbbBBBbbbBbbBbbbbBBbBbbbbBbBbbBBbB;\n\n  // Fiat currencies follow https://en.wikipedia.org/wiki/ISO_4217\n  address public constant USD = address(840);\n  address public constant GBP = address(826);\n  address public constant EUR = address(978);\n  address public constant JPY = address(392);\n  address public constant KRW = address(410);\n  address public constant CNY = address(156);\n  address public constant AUD = address(36);\n  address public constant CAD = address(124);\n  address public constant CHF = address(756);\n  address public constant ARS = address(32);\n  address public constant PHP = address(608);\n  address public constant NZD = address(554);\n  address public constant SGD = address(702);\n  address public constant NGN = address(566);\n  address public constant ZAR = address(710);\n  address public constant RUB = address(643);\n  address public constant INR = address(356);\n  address public constant BRL = address(986);\n}\n"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 standard as defined in the EIP.\n */\ninterface IERC20 {\n    /**\n     * @dev Emitted when `value` tokens are moved from one account (`from`) to\n     * another (`to`).\n     *\n     * Note that `value` may be zero.\n     */\n    event Transfer(address indexed from, address indexed to, uint256 value);\n\n    /**\n     * @dev Emitted when the allowance of a `spender` for an `owner` is set by\n     * a call to {approve}. `value` is the new allowance.\n     */\n    event Approval(address indexed owner, address indexed spender, uint256 value);\n\n    /**\n     * @dev Returns the amount of tokens in existence.\n     */\n    function totalSupply() external view returns (uint256);\n\n    /**\n     * @dev Returns the amount of tokens owned by `account`.\n     */\n    function balanceOf(address account) external view returns (uint256);\n\n    /**\n     * @dev Moves `amount` tokens from the caller's account to `to`.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transfer(address to, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Returns the remaining number of tokens that `spender` will be\n     * allowed to spend on behalf of `owner` through {transferFrom}. This is\n     * zero by default.\n     *\n     * This value changes when {approve} or {transferFrom} are called.\n     */\n    function allowance(address owner, address spender) external view returns (uint256);\n\n    /**\n     * @dev Sets `amount` as the allowance of `spender` over the caller's tokens.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * IMPORTANT: Beware that changing an allowance with this method brings the risk\n     * that someone may use both the old and the new allowance by unfortunate\n     * transaction ordering. One possible solution to mitigate this race\n     * condition is to first reduce the spender's allowance to 0 and set the\n     * desired value afterwards:\n     * https://github.com/ethereum/EIPs/issues/20#issuecomment-263524729\n     *\n     * Emits an {Approval} event.\n     */\n    function approve(address spender, uint256 amount) external returns (bool);\n\n    /**\n     * @dev Moves `amount` tokens from `from` to `to` using the\n     * allowance mechanism. `amount` is then deducted from the caller's\n     * allowance.\n     *\n     * Returns a boolean value indicating whether the operation succeeded.\n     *\n     * Emits a {Transfer} event.\n     */\n    function transferFrom(\n        address from,\n        address to,\n        uint256 amount\n    ) external returns (bool);\n}\n"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/extensions/draft-IERC20Permit.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts v4.4.1 (token/ERC20/extensions/draft-IERC20Permit.sol)\n\npragma solidity ^0.8.0;\n\n/**\n * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in\n * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].\n *\n * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by\n * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't\n * need to send a transaction, and thus is not required to hold Ether at all.\n */\ninterface IERC20Permit {\n    /**\n     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,\n     * given ``owner``'s signed approval.\n     *\n     * IMPORTANT: The same issues {IERC20-approve} has related to transaction\n     * ordering also apply here.\n     *\n     * Emits an {Approval} event.\n     *\n     * Requirements:\n     *\n     * - `spender` cannot be the zero address.\n     * - `deadline` must be a timestamp in the future.\n     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`\n     * over the EIP712-formatted function arguments.\n     * - the signature must use ``owner``'s current nonce (see {nonces}).\n     *\n     * For more information on the signature format, see the\n     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP\n     * section].\n     */\n    function permit(\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) external;\n\n    /**\n     * @dev Returns the current nonce for `owner`. This value must be\n     * included whenever a signature is generated for {permit}.\n     *\n     * Every successful call to {permit} increases ``owner``'s nonce by one. This\n     * prevents a signature from being used multiple times.\n     */\n    function nonces(address owner) external view returns (uint256);\n\n    /**\n     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.\n     */\n    // solhint-disable-next-line func-name-mixedcase\n    function DOMAIN_SEPARATOR() external view returns (bytes32);\n}\n"
    },
    "lib/openzeppelin-contracts/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (token/ERC20/utils/SafeERC20.sol)\n\npragma solidity ^0.8.0;\n\nimport \"../IERC20.sol\";\nimport \"../extensions/draft-IERC20Permit.sol\";\nimport \"../../../utils/Address.sol\";\n\n/**\n * @title SafeERC20\n * @dev Wrappers around ERC20 operations that throw on failure (when the token\n * contract returns false). Tokens that return no value (and instead revert or\n * throw on failure) are also supported, non-reverting calls are assumed to be\n * successful.\n * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,\n * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.\n */\nlibrary SafeERC20 {\n    using Address for address;\n\n    function safeTransfer(\n        IERC20 token,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));\n    }\n\n    function safeTransferFrom(\n        IERC20 token,\n        address from,\n        address to,\n        uint256 value\n    ) internal {\n        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));\n    }\n\n    /**\n     * @dev Deprecated. This function has issues similar to the ones found in\n     * {IERC20-approve}, and its usage is discouraged.\n     *\n     * Whenever possible, use {safeIncreaseAllowance} and\n     * {safeDecreaseAllowance} instead.\n     */\n    function safeApprove(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        // safeApprove should only be called when setting an initial allowance,\n        // or when resetting it to zero. To increase and decrease it, use\n        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'\n        require(\n            (value == 0) || (token.allowance(address(this), spender) == 0),\n            \"SafeERC20: approve from non-zero to non-zero allowance\"\n        );\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));\n    }\n\n    function safeIncreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        uint256 newAllowance = token.allowance(address(this), spender) + value;\n        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n    }\n\n    function safeDecreaseAllowance(\n        IERC20 token,\n        address spender,\n        uint256 value\n    ) internal {\n        unchecked {\n            uint256 oldAllowance = token.allowance(address(this), spender);\n            require(oldAllowance >= value, \"SafeERC20: decreased allowance below zero\");\n            uint256 newAllowance = oldAllowance - value;\n            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, newAllowance));\n        }\n    }\n\n    function safePermit(\n        IERC20Permit token,\n        address owner,\n        address spender,\n        uint256 value,\n        uint256 deadline,\n        uint8 v,\n        bytes32 r,\n        bytes32 s\n    ) internal {\n        uint256 nonceBefore = token.nonces(owner);\n        token.permit(owner, spender, value, deadline, v, r, s);\n        uint256 nonceAfter = token.nonces(owner);\n        require(nonceAfter == nonceBefore + 1, \"SafeERC20: permit did not succeed\");\n    }\n\n    /**\n     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement\n     * on the return value: the return value is optional (but if data is returned, it must not be false).\n     * @param token The token targeted by the call.\n     * @param data The call data (encoded using abi.encode or one of its variants).\n     */\n    function _callOptionalReturn(IERC20 token, bytes memory data) private {\n        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since\n        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that\n        // the target address contains contract code and also asserts for success in the low-level call.\n\n        bytes memory returndata = address(token).functionCall(data, \"SafeERC20: low-level call failed\");\n        if (returndata.length > 0) {\n            // Return data is optional\n            require(abi.decode(returndata, (bool)), \"SafeERC20: ERC20 operation did not succeed\");\n        }\n    }\n}\n"
    },
    "lib/openzeppelin-contracts/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT\n// OpenZeppelin Contracts (last updated v4.7.0) (utils/Address.sol)\n\npragma solidity ^0.8.1;\n\n/**\n * @dev Collection of functions related to the address type\n */\nlibrary Address {\n    /**\n     * @dev Returns true if `account` is a contract.\n     *\n     * [IMPORTANT]\n     * ====\n     * It is unsafe to assume that an address for which this function returns\n     * false is an externally-owned account (EOA) and not a contract.\n     *\n     * Among others, `isContract` will return false for the following\n     * types of addresses:\n     *\n     *  - an externally-owned account\n     *  - a contract in construction\n     *  - an address where a contract will be created\n     *  - an address where a contract lived, but was destroyed\n     * ====\n     *\n     * [IMPORTANT]\n     * ====\n     * You shouldn't rely on `isContract` to protect against flash loan attacks!\n     *\n     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets\n     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract\n     * constructor.\n     * ====\n     */\n    function isContract(address account) internal view returns (bool) {\n        // This method relies on extcodesize/address.code.length, which returns 0\n        // for contracts in construction, since the code is only stored at the end\n        // of the constructor execution.\n\n        return account.code.length > 0;\n    }\n\n    /**\n     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to\n     * `recipient`, forwarding all available gas and reverting on errors.\n     *\n     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost\n     * of certain opcodes, possibly making contracts go over the 2300 gas limit\n     * imposed by `transfer`, making them unable to receive funds via\n     * `transfer`. {sendValue} removes this limitation.\n     *\n     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].\n     *\n     * IMPORTANT: because control is transferred to `recipient`, care must be\n     * taken to not create reentrancy vulnerabilities. Consider using\n     * {ReentrancyGuard} or the\n     * https://solidity.readthedocs.io/en/v0.5.11/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].\n     */\n    function sendValue(address payable recipient, uint256 amount) internal {\n        require(address(this).balance >= amount, \"Address: insufficient balance\");\n\n        (bool success, ) = recipient.call{value: amount}(\"\");\n        require(success, \"Address: unable to send value, recipient may have reverted\");\n    }\n\n    /**\n     * @dev Performs a Solidity function call using a low level `call`. A\n     * plain `call` is an unsafe replacement for a function call: use this\n     * function instead.\n     *\n     * If `target` reverts with a revert reason, it is bubbled up by this\n     * function (like regular Solidity function calls).\n     *\n     * Returns the raw returned data. To convert to the expected return value,\n     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].\n     *\n     * Requirements:\n     *\n     * - `target` must be a contract.\n     * - calling `target` with `data` must not revert.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, \"Address: low-level call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with\n     * `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, 0, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but also transferring `value` wei to `target`.\n     *\n     * Requirements:\n     *\n     * - the calling contract must have an ETH balance of at least `value`.\n     * - the called Solidity function must be `payable`.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value\n    ) internal returns (bytes memory) {\n        return functionCallWithValue(target, data, value, \"Address: low-level call with value failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but\n     * with `errorMessage` as a fallback revert reason when `target` reverts.\n     *\n     * _Available since v3.1._\n     */\n    function functionCallWithValue(\n        address target,\n        bytes memory data,\n        uint256 value,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        require(address(this).balance >= value, \"Address: insufficient balance for call\");\n        (bool success, bytes memory returndata) = target.call{value: value}(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {\n        return functionStaticCall(target, data, \"Address: low-level static call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a static call.\n     *\n     * _Available since v3.3._\n     */\n    function functionStaticCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.staticcall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {\n        return functionDelegateCall(target, data, \"Address: low-level delegate call failed\");\n    }\n\n    /**\n     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],\n     * but performing a delegate call.\n     *\n     * _Available since v3.4._\n     */\n    function functionDelegateCall(\n        address target,\n        bytes memory data,\n        string memory errorMessage\n    ) internal returns (bytes memory) {\n        (bool success, bytes memory returndata) = target.delegatecall(data);\n        return verifyCallResultFromTarget(target, success, returndata, errorMessage);\n    }\n\n    /**\n     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling\n     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.\n     *\n     * _Available since v4.8._\n     */\n    function verifyCallResultFromTarget(\n        address target,\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal view returns (bytes memory) {\n        if (success) {\n            if (returndata.length == 0) {\n                // only check isContract if the call was successful and the return data is empty\n                // otherwise we already know that it was a contract\n                require(isContract(target), \"Address: call to non-contract\");\n            }\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    /**\n     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the\n     * revert reason or using the provided one.\n     *\n     * _Available since v4.3._\n     */\n    function verifyCallResult(\n        bool success,\n        bytes memory returndata,\n        string memory errorMessage\n    ) internal pure returns (bytes memory) {\n        if (success) {\n            return returndata;\n        } else {\n            _revert(returndata, errorMessage);\n        }\n    }\n\n    function _revert(bytes memory returndata, string memory errorMessage) private pure {\n        // Look for revert reason and bubble it up if present\n        if (returndata.length > 0) {\n            // The easiest way to bubble the revert reason is using memory via assembly\n            /// @solidity memory-safe-assembly\n            assembly {\n                let returndata_size := mload(returndata)\n                revert(add(32, returndata), returndata_size)\n            }\n        } else {\n            revert(errorMessage);\n        }\n    }\n}\n"
    }
  },
  "settings": {
    "remappings": [
      "chainlink/=lib/chainlink/contracts/src/v0.8/",
      "ds-test/=lib/forge-std/lib/ds-test/src/",
      "forge-std/=lib/forge-std/src/",
      "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
      "openzeppelin/=lib/openzeppelin-contracts/contracts/"
    ],
    "optimizer": {
      "enabled": true,
      "runs": 200
    },
    "metadata": {
      "bytecodeHash": "ipfs"
    },
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    },
    "evmVersion": "london",
    "libraries": {
      "contracts/utils/CreditLib.sol": {
        "CreditLib": "0x075893244f3e18658be71ea00e7bd4f5228abcfd"
      },
      "contracts/utils/CreditListLib.sol": {
        "CreditListLib": "0x639e0ca021d551047eb5c8ed67e004e58acbe3ee"
      },
      "contracts/utils/EscrowLib.sol": {
        "EscrowLib": "0xee2c848181ea4a26b0cb06f0cbf472126f6d5097"
      },
      "contracts/utils/LineFactoryLib.sol": {
        "LineFactoryLib": "0xe6456660c621ee0108679b83a729f861fa5f62e7"
      },
      "contracts/utils/LineLib.sol": {
        "LineLib": "0x3cbe25f3a84cd3f65ee759d6938dbb4fc935ac06"
      },
      "contracts/utils/SpigotLib.sol": {
        "SpigotLib": "0x916ad101ad15815e1badedb58daf22dcae2fbc2b"
      },
      "contracts/utils/SpigotedLineLib.sol": {
        "SpigotedLineLib": "0xdb8a90c397febc83d5840a02703a3c62d3e234c4"
      }
    }
  }
}