SwarmBuyerBurner

{{
  "language": "Solidity",
  "sources": {
    "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorInterface.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// solhint-disable-next-line interface-starts-with-i
interface AggregatorInterface {
  function latestAnswer() external view returns (int256);

  function latestTimestamp() external view returns (uint256);

  function latestRound() external view returns (uint256);

  function getAnswer(uint256 roundId) external view returns (int256);

  function getTimestamp(uint256 roundId) external view returns (uint256);

  event AnswerUpdated(int256 indexed current, uint256 indexed roundId, uint256 updatedAt);

  event NewRound(uint256 indexed roundId, address indexed startedBy, uint256 startedAt);
}
"
    },
    "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV2V3Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import {AggregatorInterface} from "./AggregatorInterface.sol";
import {AggregatorV3Interface} from "./AggregatorV3Interface.sol";

// solhint-disable-next-line interface-starts-with-i
interface AggregatorV2V3Interface is AggregatorInterface, AggregatorV3Interface {}
"
    },
    "@chainlink/contracts/src/v0.8/shared/interfaces/AggregatorV3Interface.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

// solhint-disable-next-line interface-starts-with-i
interface AggregatorV3Interface {
  function decimals() external view returns (uint8);

  function description() external view returns (string memory);

  function version() external view returns (uint256);

  function getRoundData(
    uint80 _roundId
  ) external view returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);

  function latestRoundData()
    external
    view
    returns (uint80 roundId, int256 answer, uint256 startedAt, uint256 updatedAt, uint80 answeredInRound);
}
"
    },
    "@openzeppelin-v5/contracts-upgradeable/access/OwnableUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (access/Ownable.sol)

pragma solidity ^0.8.20;

import {ContextUpgradeable} from "../utils/ContextUpgradeable.sol";
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * The initial owner is set to the address provided by the deployer. 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    /// @custom:storage-location erc7201:openzeppelin.storage.Ownable
    struct OwnableStorage {
        address _owner;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Ownable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant OwnableStorageLocation = 0x9016d09d72d40fdae2fd8ceac6b6234c7706214fd39c1cd1e609a0528c199300;

    function _getOwnableStorage() private pure returns (OwnableStorage storage $) {
        assembly {
            $.slot := OwnableStorageLocation
        }
    }

    /**
     * @dev The caller account is not authorized to perform an operation.
     */
    error OwnableUnauthorizedAccount(address account);

    /**
     * @dev The owner is not a valid owner account. (eg. `address(0)`)
     */
    error OwnableInvalidOwner(address owner);

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

    /**
     * @dev Initializes the contract setting the address provided by the deployer as the initial owner.
     */
    function __Ownable_init(address initialOwner) internal onlyInitializing {
        __Ownable_init_unchained(initialOwner);
    }

    function __Ownable_init_unchained(address initialOwner) internal onlyInitializing {
        if (initialOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(initialOwner);
    }

    /**
     * @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) {
        OwnableStorage storage $ = _getOwnableStorage();
        return $._owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        if (owner() != _msgSender()) {
            revert OwnableUnauthorizedAccount(_msgSender());
        }
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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 {
        if (newOwner == address(0)) {
            revert OwnableInvalidOwner(address(0));
        }
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        OwnableStorage storage $ = _getOwnableStorage();
        address oldOwner = $._owner;
        $._owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}
"
    },
    "@openzeppelin-v5/contracts-upgradeable/proxy/utils/Initializable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.20;

/**
 * @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 Storage of the initializable contract.
     *
     * It's implemented on a custom ERC-7201 namespace to reduce the risk of storage collisions
     * when using with upgradeable contracts.
     *
     * @custom:storage-location erc7201:openzeppelin.storage.Initializable
     */
    struct InitializableStorage {
        /**
         * @dev Indicates that the contract has been initialized.
         */
        uint64 _initialized;
        /**
         * @dev Indicates that the contract is in the process of being initialized.
         */
        bool _initializing;
    }

    // keccak256(abi.encode(uint256(keccak256("openzeppelin.storage.Initializable")) - 1)) & ~bytes32(uint256(0xff))
    bytes32 private constant INITIALIZABLE_STORAGE = 0xf0c57e16840df040f15088dc2f81fe391c3923bec73e23a9662efc9c229c6a00;

    /**
     * @dev The contract is already initialized.
     */
    error InvalidInitialization();

    /**
     * @dev The contract is not initializing.
     */
    error NotInitializing();

    /**
     * @dev Triggered when the contract has been initialized or reinitialized.
     */
    event Initialized(uint64 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 in the context of a constructor an `initializer` may be invoked any
     * number of times. This behavior in the constructor can be useful during testing and is not expected to be used in
     * production.
     *
     * Emits an {Initialized} event.
     */
    modifier initializer() {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        // Cache values to avoid duplicated sloads
        bool isTopLevelCall = !$._initializing;
        uint64 initialized = $._initialized;

        // Allowed calls:
        // - initialSetup: the contract is not in the initializing state and no previous version was
        //                 initialized
        // - construction: the contract is initialized at version 1 (no reininitialization) and the
        //                 current contract is just being deployed
        bool initialSetup = initialized == 0 && isTopLevelCall;
        bool construction = initialized == 1 && address(this).code.length == 0;

        if (!initialSetup && !construction) {
            revert InvalidInitialization();
        }
        $._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 2**64 - 1 will prevent any future reinitialization.
     *
     * Emits an {Initialized} event.
     */
    modifier reinitializer(uint64 version) {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing || $._initialized >= version) {
            revert InvalidInitialization();
        }
        $._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() {
        _checkInitializing();
        _;
    }

    /**
     * @dev Reverts if the contract is not in an initializing state. See {onlyInitializing}.
     */
    function _checkInitializing() internal view virtual {
        if (!_isInitializing()) {
            revert NotInitializing();
        }
    }

    /**
     * @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 {
        // solhint-disable-next-line var-name-mixedcase
        InitializableStorage storage $ = _getInitializableStorage();

        if ($._initializing) {
            revert InvalidInitialization();
        }
        if ($._initialized != type(uint64).max) {
            $._initialized = type(uint64).max;
            emit Initialized(type(uint64).max);
        }
    }

    /**
     * @dev Returns the highest version that has been initialized. See {reinitializer}.
     */
    function _getInitializedVersion() internal view returns (uint64) {
        return _getInitializableStorage()._initialized;
    }

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

    /**
     * @dev Returns a pointer to the storage namespace.
     */
    // solhint-disable-next-line var-name-mixedcase
    function _getInitializableStorage() private pure returns (InitializableStorage storage $) {
        assembly {
            $.slot := INITIALIZABLE_STORAGE
        }
    }
}
"
    },
    "@openzeppelin-v5/contracts-upgradeable/utils/ContextUpgradeable.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (utils/Context.sol)

pragma solidity ^0.8.20;
import {Initializable} from "../proxy/utils/Initializable.sol";

/**
 * @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 ContextUpgradeable is Initializable {
    function __Context_init() internal onlyInitializing {
    }

    function __Context_init_unchained() internal onlyInitializing {
    }
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}
"
    },
    "@openzeppelin-v5/contracts/token/ERC1155/IERC1155.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.1) (token/ERC1155/IERC1155.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @dev Required interface of an ERC1155 compliant contract, as defined in the
 * https://eips.ethereum.org/EIPS/eip-1155[EIP].
 */
interface IERC1155 is IERC165 {
    /**
     * @dev Emitted when `value` amount of tokens of type `id` are transferred from `from` to `to` by `operator`.
     */
    event TransferSingle(address indexed operator, address indexed from, address indexed to, uint256 id, uint256 value);

    /**
     * @dev Equivalent to multiple {TransferSingle} events, where `operator`, `from` and `to` are the same for all
     * transfers.
     */
    event TransferBatch(
        address indexed operator,
        address indexed from,
        address indexed to,
        uint256[] ids,
        uint256[] values
    );

    /**
     * @dev Emitted when `account` grants or revokes permission to `operator` to transfer their tokens, according to
     * `approved`.
     */
    event ApprovalForAll(address indexed account, address indexed operator, bool approved);

    /**
     * @dev Emitted when the URI for token type `id` changes to `value`, if it is a non-programmatic URI.
     *
     * If an {URI} event was emitted for `id`, the standard
     * https://eips.ethereum.org/EIPS/eip-1155#metadata-extensions[guarantees] that `value` will equal the value
     * returned by {IERC1155MetadataURI-uri}.
     */
    event URI(string value, uint256 indexed id);

    /**
     * @dev Returns the value of tokens of token type `id` owned by `account`.
     *
     * Requirements:
     *
     * - `account` cannot be the zero address.
     */
    function balanceOf(address account, uint256 id) external view returns (uint256);

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {balanceOf}.
     *
     * Requirements:
     *
     * - `accounts` and `ids` must have the same length.
     */
    function balanceOfBatch(
        address[] calldata accounts,
        uint256[] calldata ids
    ) external view returns (uint256[] memory);

    /**
     * @dev Grants or revokes permission to `operator` to transfer the caller's tokens, according to `approved`,
     *
     * Emits an {ApprovalForAll} event.
     *
     * Requirements:
     *
     * - `operator` cannot be the caller.
     */
    function setApprovalForAll(address operator, bool approved) external;

    /**
     * @dev Returns true if `operator` is approved to transfer ``account``'s tokens.
     *
     * See {setApprovalForAll}.
     */
    function isApprovedForAll(address account, address operator) external view returns (bool);

    /**
     * @dev Transfers a `value` amount of tokens of type `id` from `from` to `to`.
     *
     * WARNING: This function can potentially allow a reentrancy attack when transferring tokens
     * to an untrusted contract, when invoking {onERC1155Received} on the receiver.
     * Ensure to follow the checks-effects-interactions pattern and consider employing
     * reentrancy guards when interacting with untrusted contracts.
     *
     * Emits a {TransferSingle} event.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - If the caller is not `from`, it must have been approved to spend ``from``'s tokens via {setApprovalForAll}.
     * - `from` must have a balance of tokens of type `id` of at least `value` amount.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155Received} and return the
     * acceptance magic value.
     */
    function safeTransferFrom(address from, address to, uint256 id, uint256 value, bytes calldata data) external;

    /**
     * @dev xref:ROOT:erc1155.adoc#batch-operations[Batched] version of {safeTransferFrom}.
     *
     * WARNING: This function can potentially allow a reentrancy attack when transferring tokens
     * to an untrusted contract, when invoking {onERC1155BatchReceived} on the receiver.
     * Ensure to follow the checks-effects-interactions pattern and consider employing
     * reentrancy guards when interacting with untrusted contracts.
     *
     * Emits either a {TransferSingle} or a {TransferBatch} event, depending on the length of the array arguments.
     *
     * Requirements:
     *
     * - `ids` and `values` must have the same length.
     * - If `to` refers to a smart contract, it must implement {IERC1155Receiver-onERC1155BatchReceived} and return the
     * acceptance magic value.
     */
    function safeBatchTransferFrom(
        address from,
        address to,
        uint256[] calldata ids,
        uint256[] calldata values,
        bytes calldata data
    ) external;
}
"
    },
    "@openzeppelin-v5/contracts/token/ERC20/extensions/IERC20Permit.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 *
 * ==== Security Considerations
 *
 * There are two important considerations concerning the use of `permit`. The first is that a valid permit signature
 * expresses an allowance, and it should not be assumed to convey additional meaning. In particular, it should not be
 * considered as an intention to spend the allowance in any specific way. The second is that because permits have
 * built-in replay protection and can be submitted by anyone, they can be frontrun. A protocol that uses permits should
 * take this into consideration and allow a `permit` call to fail. Combining these two aspects, a pattern that may be
 * generally recommended is:
 *
 * ```solidity
 * function doThingWithPermit(..., uint256 value, uint256 deadline, uint8 v, bytes32 r, bytes32 s) public {
 *     try token.permit(msg.sender, address(this), value, deadline, v, r, s) {} catch {}
 *     doThing(..., value);
 * }
 *
 * function doThing(..., uint256 value) public {
 *     token.safeTransferFrom(msg.sender, address(this), value);
 *     ...
 * }
 * ```
 *
 * Observe that: 1) `msg.sender` is used as the owner, leaving no ambiguity as to the signer intent, and 2) the use of
 * `try/catch` allows the permit to fail and makes the code tolerant to frontrunning. (See also
 * {SafeERC20-safeTransferFrom}).
 *
 * Additionally, note that smart contract wallets (such as Argent or Safe) are not able to produce permit signatures, so
 * contracts should have entry points that don't rely on permit.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     *
     * CAUTION: See Security Considerations above.
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

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

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}
"
    },
    "@openzeppelin-v5/contracts/token/ERC20/IERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

    /**
     * @dev Moves a `value` amount of tokens from `from` to `to` using the
     * allowance mechanism. `value` is then deducted from the caller's
     * allowance.
     *
     * Returns a boolean value indicating whether the operation succeeded.
     *
     * Emits a {Transfer} event.
     */
    function transferFrom(address from, address to, uint256 value) external returns (bool);
}
"
    },
    "@openzeppelin-v5/contracts/token/ERC20/utils/SafeERC20.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

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

        (bool success, bytes memory returndata) = address(token).call(data);
        return success && (returndata.length == 0 || abi.decode(returndata, (bool))) && address(token).code.length > 0;
    }
}
"
    },
    "@openzeppelin-v5/contracts/token/ERC721/IERC721.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC721/IERC721.sol)

pragma solidity ^0.8.20;

import {IERC165} from "../../utils/introspection/IERC165.sol";

/**
 * @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 address zero.
     *
     * 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);
}
"
    },
    "@openzeppelin-v5/contracts/utils/Address.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/Address.sol)

pragma solidity ^0.8.20;

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

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

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

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.20/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        if (address(this).balance < amount) {
            revert AddressInsufficientBalance(address(this));
        }

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

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason or custom error, it is bubbled
     * up by this function (like regular Solidity function calls). However, if
     * the call reverted with no returned reason, this function reverts with a
     * {FailedInnerCall} error.
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        if (address(this).balance < value) {
            revert AddressInsufficientBalance(address(this));
        }
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata);
    }

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

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

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

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

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}
"
    },
    "@openzeppelin-v5/contracts/utils/introspection/IERC165.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (utils/introspection/IERC165.sol)

pragma solidity ^0.8.20;

/**
 * @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);
}
"
    },
    "contracts/buyer-burner/extensions/BuyerBurnerOfferMaker.sol": {
      "content": "// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.25;

import { SafeTransferLib } from "solady/src/utils/SafeTransferLib.sol";

import { DotcV2 } from "../../OpenDotc/v2/DotcV2.sol";
import { Asset, AssetType, AssetPrice, OfferStruct, TakingOfferType, OfferPrice, OfferPricingType, PercentageType } from "../../OpenDotc/v2/structures/DotcStructuresV2.sol";

import { TokenInfo } from "../structures/BuyerBurnerStructures.sol";

abstract contract BuyerBurnerOfferMaker {
    using SafeTransferLib for address;

    event DotcSet(address dotc);
    event PoolNotExistOfferMade(uint256 offerId, address depositToken, uint256 amountIn, address withdrawalToken);

    string private constant TERMS = "https://docs.swarmx.net/";
    string private constant COMMS = "help@swarm.com";

    DotcV2 internal _dotc;

    function _setDotc(address dotc) internal {
        _dotc = DotcV2(payable(dotc));
        emit DotcSet(dotc);
    }

    function _makeOffer(
        TokenInfo memory depositToken,
        uint256 amountIn,
        TokenInfo memory withdrawalToken
    ) internal virtual {
        Asset memory depositAsset = Asset({
            assetType: AssetType.ERC20,
            assetAddress: depositToken.token,
            amount: amountIn,
            tokenId: 0,
            assetPrice: AssetPrice(depositToken.priceFeed, 0, 0)
        });

        Asset memory withdrawalAsset = Asset({
            assetType: AssetType.ERC20,
            assetAddress: withdrawalToken.token,
            amount: 1,
            tokenId: 0,
            assetPrice: AssetPrice(withdrawalToken.priceFeed, 0, 0)
        });

        address[] memory addresses = new address[](0);

        OfferStruct memory offer = OfferStruct({
            takingOfferType: TakingOfferType.PartialOffer,
            offerPrice: OfferPrice(OfferPricingType.DynamicPricing, 0, 0, PercentageType.Plus),
            specialAddresses: addresses,
            authorizationAddresses: addresses,
            expiryTimestamp: block.timestamp + 365 days,
            timelockPeriod: 0,
            terms: TERMS,
            commsLink: COMMS
        });

        DotcV2 dotc = _dotc;

        uint256 offerId = dotc.currentOfferId();

        depositToken.token.safeApprove(address(dotc), amountIn);

        dotc.makeOffer(depositAsset, withdrawalAsset, offer);

        emit PoolNotExistOfferMade(offerId, depositToken.token, amountIn, withdrawalToken.token);
    }

    function _cancelOffer(uint256 offerId) internal {
        _dotc.cancelOffer(offerId);
    }
}
"
    },
    "contracts/buyer-burner/extensions/BuyerBurnerSwapper.sol": {
      "content": "// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.25;

import { SafeTransferLib } from "solady/src/utils/SafeTransferLib.sol";

import { IV3SwapFactory } from "../interfaces/IV3SwapFactory.sol";
import { IV3SwapRouter } from "../interfaces/IV3SwapRouter.sol";
import { IV3SwapQuoterV2 } from "../interfaces/IV3SwapQuoterV2.sol";
import { IV3SwapPool } from "../interfaces/IV3SwapPool.sol";

import { BuyerBurnerWhitelistedTokens } from "./BuyerBurnerWhitelistedTokens.sol";
import { BuyerBurnerOfferMaker } from "./BuyerBurnerOfferMaker.sol";
import { TokenInfo } from "../structures/BuyerBurnerStructures.sol";
import { PathSanity } from "./PathSanity.sol";

abstract contract BuyerBurnerSwapper is BuyerBurnerWhitelistedTokens, BuyerBurnerOfferMaker {
    using SafeTransferLib for address;

    error SwapFailed(address tokenIn, address tokenOut, uint256 amountIn);
    event DexConfigSet(DEXType dexType, DexConfig config);
    event DexConfigRemoved(DEXType dexType);
    /// @notice Emitted when a `token` is swapped to SMT using WETH9 as an intermediary.
    /// @param amountOut The amount of SMT received.
    event Swapped(address tokenFrom, address tokenTo, uint256 amountOut);
    event ZeroBalance(address token);

    enum DEXType {
        NoType,
        UniswapV3,
        PancakeswapV3
    }

    struct PoolFees {
        uint24 tier1; // e.g. Uni: 100 (0.01%) | PCS: 100 (optional/not always)
        uint24 tier2; // 500  (0.05%)
        uint24 tier3; // Uni: 3000 (0.30%) | PCS: 2500 (0.25%)
        uint24 tier4; // 10000 (1.00%)
    }

    struct DexConfig {
        DEXType dexType;
        PoolFees poolFees;
        address intermediateToken;
        TokenInfo finalToken;
        address swapV3Router;
        address swapV3Quoter;
        IV3SwapFactory swapV3Factory;
    }

    mapping(DEXType dexType => DexConfig config) internal _dexConfigs;

    function _setDexConfigs(DexConfig[] calldata dexConfigs) internal {
        for (uint256 i; i < dexConfigs.length; ++i) {
            _dexConfigs[dexConfigs[i].dexType] = dexConfigs[i];
            emit DexConfigSet(dexConfigs[i].dexType, dexConfigs[i]);
        }
    }

    function _removeDexConfigs(DEXType dexType) internal {
        delete _dexConfigs[dexType];
        emit DexConfigRemoved(dexType);
    }

    function _swap(DEXType dexType) internal virtual returns (uint256 fullAmountOut) {
        TokenInfo[] memory tokens = _tokens;
        DexConfig memory config = _dexConfigs[dexType];

        for (uint256 i = 0; i < tokens.length; ) {
            uint256 amountIn = tokens[i].token.balanceOf(address(this));
            if (amountIn == 0) {
                emit ZeroBalance(tokens[i].token);
                unchecked {
                    ++i;
                }
                continue;
            }
            if (tokens[i].token == config.finalToken.token) {
                unchecked {
                    ++i;
                }
                continue;
            }

            bytes memory path;
            if (tokens[i].token == config.intermediateToken) {
                (bool ok, uint24 fee) = _firstLivePool(
                    config.swapV3Factory,
                    config.intermediateToken,
                    config.finalToken.token,
                    config.poolFees
                );
                if (!ok) {
                    _makeOffer(tokens[i], amountIn, config.finalToken);
                    unchecked {
                        ++i;
                    }
                    continue;
                }
                path = abi.encodePacked(config.intermediateToken, fee, config.finalToken.token);
            } else {
                (bool ok1, uint24 fee1) = _firstLivePool(
                    config.swapV3Factory,
                    tokens[i].token,
                    config.intermediateToken,
                    config.poolFees
                );
                (bool ok2, uint24 fee2) = _firstLivePool(
                    config.swapV3Factory,
                    config.intermediateToken,
                    config.finalToken.token,
                    config.poolFees
                );
                if (!ok1 || !ok2) {
                    _makeOffer(tokens[i], amountIn, config.finalToken);
                    unchecked {
                        ++i;
                    }
                    continue;
                }
                path = abi.encodePacked(tokens[i].token, fee1, config.intermediateToken, fee2, config.finalToken.token);
            }

            PathSanity.validateNoAdjacentEqualTokens(path);

            uint256 amountOutMinimum;
            try IV3SwapQuoterV2(config.swapV3Quoter).quoteExactInput(path, amountIn) returns (
                uint256 out,
                uint160[] memory,
                uint32[] memory,
                uint256
            ) {
                if (out == 0) {
                    _makeOffer(tokens[i], amountIn, config.finalToken);
                    unchecked {
                        ++i;
                    }
                    continue;
                }
                amountOutMinimum = out;
            } catch {
                _makeOffer(tokens[i], amountIn, config.finalToken);
                unchecked {
                    ++i;
                }
                continue;
            }

            IV3SwapRouter.ExactInputParamsV1 memory swapParamsV1 = IV3SwapRouter.ExactInputParamsV1({
                path: path,
                recipient: address(this),
                deadline: block.timestamp,
                amountIn: amountIn,
                amountOutMinimum: amountOutMinimum
            });

            tokens[i].token.safeApproveWithRetry(config.swapV3Router, amountIn);
            uint256 amountOut;

            try IV3SwapRouter(config.swapV3Router).exactInput(swapParamsV1) returns (uint256 swapped) {
                amountOut = swapped;
            } catch {
                IV3SwapRouter.ExactInputParamsV2 memory swapParamsV2 = IV3SwapRouter.ExactInputParamsV2({
                    path: path,
                    recipient: address(this),
                    amountIn: amountIn,
                    amountOutMinimum: amountOutMinimum
                });
                try IV3SwapRouter(config.swapV3Router).exactInput(swapParamsV2) returns (uint256 swapped) {
                    amountOut = swapped;
                } catch {
                    revert SwapFailed(tokens[i].token, config.finalToken.token, amountIn);
                }
            }
            fullAmountOut += amountOut;

            // reset approval to zero (safer pattern)
            tokens[i].token.safeApprove(config.swapV3Router, 0);

            emit Swapped(tokens[i].token, config.finalToken.token, amountOut);

            unchecked {
                ++i;
            }
        }

        _finishSwap(config.finalToken.token, fullAmountOut);
    }

    function _firstLivePool(
        IV3SwapFactory factory,
        address tokenA,
        address tokenB,
        PoolFees memory fees
    ) internal view virtual returns (bool ok, uint24 feeChosen) {
        (ok, feeChosen) = _checkFee(factory, tokenA, tokenB, fees.tier3);
        if (ok) return (true, feeChosen);

        (ok, feeChosen) = _checkFee(factory, tokenA, tokenB, fees.tier2);
        if (ok) return (true, feeChosen);

        (ok, feeChosen) = _checkFee(factory, tokenA, tokenB, fees.tier4);
        if (ok) return (true, feeChosen);

        (ok, feeChosen) = _checkFee(factory, tokenA, tokenB, fees.tier1);
        if (ok) return (true, feeChosen);

        return (false, 0);
    }

    function _checkFee(
        IV3SwapFactory factory,
        address tokenA,
        address tokenB,
        uint24 fee
    ) internal view virtual returns (bool, uint24) {
        address pool;
        try factory.getPool(tokenA, tokenB, fee) returns (address poolReturned) {
            pool = poolReturned;
        } catch {
            return (false, 0);
        }
        if (pool == address(0)) return (false, 0);
        if (IV3SwapPool(pool).liquidity() == 0) return (false, 0);
        return (true, fee);
    }

    function _finishSwap(address token, uint256 amount) internal virtual;
}
"
    },
    "contracts/buyer-burner/extensions/BuyerBurnerWhitelistedTokens.sol": {
      "content": "// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.25;

import { TokenInfo } from "../structures/BuyerBurnerStructures.sol";

abstract contract BuyerBurnerWhitelistedTokens {
    error TokenWhitelisted(address token);
    error TokenNotWhitelisted(address token);

    event Whitelisted(TokenInfo tokenInfo);
    event Unwhitelisted(address token);

    TokenInfo[] internal _tokens;
    mapping(address token => uint256 index) internal _indexOfToken;

    /// @notice Add a single token + its Chainlink feed
    function _addToken(TokenInfo calldata tokenInfo) internal virtual {
        if (_indexOfToken[tokenInfo.token] != 0) {
            revert TokenWhitelisted(tokenInfo.token);
        }

        _tokens.push(tokenInfo);
        _indexOfToken[tokenInfo.token] = _tokens.length; // 1-based

        emit Whitelisted(tokenInfo);
    }

    /// @notice Remove a single token
    function _removeToken(address token) internal virtual {
        uint256 index = _indexOfToken[token];
        if (index == 0) {
            revert TokenNotWhitelisted(token);
        }

        // swap-and-pop
        uint256 last = _tokens.length;
        TokenInfo memory lastTokenInfo = _tokens[last - 1];
        _tokens[index - 1] = lastTokenInfo;
        _indexOfToken[lastTokenInfo.token] = index;

        _tokens.pop();

        delete _indexOfToken[token];

        emit Unwhitelisted(token);
    }

    /// @notice Batch add
    function _addTokens(TokenInfo[] calldata tokensInfos) internal {
        for (uint256 i; i < tokensInfos.length; ++i) {
            _addToken(tokensInfos[i]);
        }
    }

    /// @notice Batch remove
    function _removeTokens(address[] calldata tokensToRemove) internal {
        for (uint256 i; i < tokensToRemove.length; ++i) {
            _removeToken(tokensToRemove[i]);
        }
    }
}
"
    },
    "contracts/buyer-burner/extensions/PathSanity.sol": {
      "content": "// SPDX-License-Identifier: GPL-3.0-only
pragma solidity ^0.8.25;

library PathSanity {
    error BadPath();
    error InvalidHopSameToken();
    error ZeroToken();
    error AddrOOB();
    error FeeOOB();

    uint256 internal constant ADDR_LEN = 20;
    uint256 internal constant FEE_LEN = 3;
    uint256 internal constant HOP_LEN = 23;

    /// @dev Path: token(20) | fee(3) | token(20) | [fee(3) | token(20)]...
    /// Ensures structure is valid and no adjacent tokens are equal/zero.
    function validateNoAdjacentEqualTokens(bytes memory path) internal pure {
        uint256 len = path.length;
        // Must be 20 + k*(3+20), k>=1  => min = 43 bytes
        if (!(len >= (ADDR_LEN + HOP_LEN) && (len - ADDR_LEN) % HOP_LEN == 0)) {
            revert BadPath();
        }

        address prev = _addrAt(path, 0);
        if (prev == address(0)) revert ZeroToken();

        // next token starts after 20 (addr) + 3 (fee)
        uint256 i = HOP_LEN;

        while (i + ADDR_LEN <= len) {
            address next_ = _addrAt(path, i);
            if (next_ == address(0)) revert ZeroToken();
            if (prev == next_) revert InvalidHopSameToken();
            prev = next_;
            i += HOP_LEN;
        }
    }

    /// @dev Read an address from `path` at byte offset `index`.
    function _addrAt(bytes memory path, uint256 index) private pure returns (address a) {
        if (path.length < index + ADDR_LEN) revert AddrOOB();
        assembly {
            a := shr(96, mload(add(add(path, 0x20), index)))
        }
    }

    /// @dev Read a uint24 fee from `path` at byte offset `index`.
    function feeAt(bytes memory path, uint256 index) internal pure returns (uint24 f) {
        if (path.length < index + FEE_LEN) revert FeeOOB();
        assembly {
            f := shr(232, mload(add(add(path, 0x20), index)))
        }
    }
}
"
    },
    "contracts/buyer-burner/interfaces/IERC20Burnable.sol": {
      "content": "// SPDX-License-Identifier: MIT
pragma solidity ^0.8.25;

interface IERC20Burnable {
    /**
     * @dev See {IERC20-transfer}.
     *
     * Requirements:
     *
     * - `to` cannot be the zero address.
     * - the caller must have a balance of at least `value`.
     */
    function transfer(address to, uint256 value) external returns (bool);

    /**
     * @dev Destroys a `value` amount of tokens from the caller.
     *
     * See {ERC20-_burn}.
     */
    function burn(uint256 value) external;

    /**
     * @dev Destroys a `value` amount of tokens from `account`, deducting from
     * the caller's allowance.
     *
     * See {ERC20-_burn} and {ERC20-allowance}.
     *
     * Requirements:
     *
     * - the caller must have allowance for ``accounts``'s tokens of at least
     * `value`.
     */
    function burnFrom(address account, uint256 value) external;
}
"
    },
    "contracts/buyer-burner/interfaces/IV3SwapFactory.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.25;

/// @title IV3SwapFactory
/// @notice Minimal V3-like factory interface to unify Uniswap V3 / Pancake V3 usage.
interface IV3SwapFactory {
    /// @notice Returns the canonical pool address for a token pair and fee tier, or zero if none exists.
    /// @param tokenA Address of token A.
    /// @param tokenB Address of token B.
    /// @param fee The pool fee tier expressed in hundredths of a bip, e.g. 500, 3000, 10000.
    /// @return pool The pool address for the given pair and fee, or address(0) if not deployed.
    function getPool(address tokenA, address tokenB, uint24 fee) external view returns (address pool);
}
"
    },
    "contracts/buyer-burner/interfaces/IV3SwapPool.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.25;

interface IV3SwapPool {
    function liquidity() external view returns (uint128);
}
"
    },
    "contracts/buyer-burner/interfaces/IV3SwapQuoterV2.sol": {
      "content": "// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.25;

/// @title IV3SwapQuoterV2
/// @notice Minimal V3-like quoter interface to unify Uniswap V3 / Pancake V3 quoting.
interface IV3SwapQuoterV2 {
    /// @notice Returns a quote for an exact-input swap along the provided path.
    /// @param path ABI-encoded path of token addresses and fee tiers.
    /// @param amountIn Exact amount of input tokens to quote.
    /// @return amountOut The quoted amount of output tokens.
    function quoteExactInput(
        bytes calldata path,
        uint256 amountIn
    ) exter