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// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

import "@openzeppelin-v4/contracts/access/Ownable.sol";
import "./interfaces/IZFStableSwap.sol";
import "./interfaces/IZFStableSwapLP.sol";
import "./interfaces/IZFStableSwapDeployer.sol";
import "./interfaces/IZFStableSwapLPFactory.sol";

contract ZFStableSwapFactory is Ownable {
    struct StableSwapPairInfo {
        address swapContract;
        address token0;
        address token1;
        address LPContract;
    }
    struct StableSwapThreePoolPairInfo {
        address swapContract;
        address token0;
        address token1;
        address token2;
        address LPContract;
    }

    mapping(address => mapping(address => mapping(address => StableSwapThreePoolPairInfo))) public stableSwapPairInfo;
    // Query three pool pair infomation by two tokens.
    mapping(address => mapping(address => StableSwapThreePoolPairInfo)) threePoolInfo;
    mapping(uint256 => address) public swapPairContract;

    IZFStableSwapLPFactory public immutable LPFactory;
    IZFStableSwapDeployer public immutable SwapTwoPoolDeployer;
    IZFStableSwapDeployer public immutable SwapThreePoolDeployer;

    address constant ZEROADDRESS = address(0);

    uint256 public pairLength;

    event NewStableSwapPair(address indexed swapContract, address tokenA, address tokenB, address tokenC, address LP);

    /**
     * @notice constructor
     * _LPFactory: LP factory
     * _SwapTwoPoolDeployer: Swap two pool deployer
     * _SwapThreePoolDeployer: Swap three pool deployer
     */
    constructor(
        IZFStableSwapLPFactory _LPFactory,
        IZFStableSwapDeployer _SwapTwoPoolDeployer,
        IZFStableSwapDeployer _SwapThreePoolDeployer
    ) {
        LPFactory = _LPFactory;
        SwapTwoPoolDeployer = _SwapTwoPoolDeployer;
        SwapThreePoolDeployer = _SwapThreePoolDeployer;
    }

    // returns sorted token addresses, used to handle return values from pairs sorted in this order
    function sortTokens(address tokenA, address tokenB) internal pure returns (address token0, address token1) {
        require(tokenA != tokenB, "IDENTICAL_ADDRESSES");
        (token0, token1) = tokenA < tokenB ? (tokenA, tokenB) : (tokenB, tokenA);
    }

    function sortTokens(
        address tokenA,
        address tokenB,
        address tokenC
    )
        internal
        pure
        returns (
            address,
            address,
            address
        )
    {
        require(tokenA != tokenB && tokenA != tokenC && tokenB != tokenC, "IDENTICAL_ADDRESSES");
        address tmp;
        if (tokenA > tokenB) {
            tmp = tokenA;
            tokenA = tokenB;
            tokenB = tmp;
        }
        if (tokenB > tokenC) {
            tmp = tokenB;
            tokenB = tokenC;
            tokenC = tmp;
            if (tokenA > tokenB) {
                tmp = tokenA;
                tokenA = tokenB;
                tokenB = tmp;
            }
        }
        return (tokenA, tokenB, tokenC);
    }

    /**
     * @notice createSwapPair
     * @param _tokenA: Addresses of ERC20 conracts .
     * @param _tokenB: Addresses of ERC20 conracts .
     * @param _A: Amplification coefficient multiplied by n * (n - 1)
     * @param _fee: Fee to charge for exchanges
     * @param _protocol_fee: Protocol fee
     */
    function createSwapPair(
        address _tokenA,
        address _tokenB,
        uint256 _A,
        uint256 _fee,
        uint256 _protocol_fee
    ) external onlyOwner {
        require(_tokenA != ZEROADDRESS && _tokenB != ZEROADDRESS && _tokenA != _tokenB, "Illegal token");
        (address t0, address t1) = sortTokens(_tokenA, _tokenB);
        address LP = LPFactory.createSwapLP(t0, t1, ZEROADDRESS, address(this));
        address swapContract = SwapTwoPoolDeployer.createSwapPair(t0, t1, _A, _fee, _protocol_fee, msg.sender, LP);
        IZFStableSwapLP(LP).setMinter(swapContract);
        addPairInfoInternal(swapContract, t0, t1, ZEROADDRESS, LP);
    }

    /**
     * @notice createThreePoolPair
     * @param _tokenA: Addresses of ERC20 conracts .
     * @param _tokenB: Addresses of ERC20 conracts .
     * @param _tokenC: Addresses of ERC20 conracts .
     * @param _A: Amplification coefficient multiplied by n * (n - 1)
     * @param _fee: Fee to charge for exchanges
     * @param _protocol_fee: Protocol fee
     */
    function createThreePoolPair(
        address _tokenA,
        address _tokenB,
        address _tokenC,
        uint256 _A,
        uint256 _fee,
        uint256 _protocol_fee
    ) external onlyOwner {
        require(
            _tokenA != ZEROADDRESS &&
                _tokenB != ZEROADDRESS &&
                _tokenC != ZEROADDRESS &&
                _tokenA != _tokenB &&
                _tokenA != _tokenC &&
                _tokenB != _tokenC,
            "Illegal token"
        );
        (address t0, address t1, address t2) = sortTokens(_tokenA, _tokenB, _tokenC);
        address LP = LPFactory.createSwapLP(t0, t1, t2, address(this));
        address swapContract = SwapThreePoolDeployer.createSwapPair(t0, t1, t2, _A, _fee, _protocol_fee, msg.sender, LP);
        IZFStableSwapLP(LP).setMinter(swapContract);
        addPairInfoInternal(swapContract, t0, t1, t2, LP);
    }

    function addPairInfoInternal(
        address _swapContract,
        address _t0,
        address _t1,
        address _t2,
        address _LP
    ) internal {
        StableSwapThreePoolPairInfo storage info = stableSwapPairInfo[_t0][_t1][_t2];
        info.swapContract = _swapContract;
        info.token0 = _t0;
        info.token1 = _t1;
        info.token2 = _t2;
        info.LPContract = _LP;
        swapPairContract[pairLength] = _swapContract;
        pairLength += 1;
        if (_t2 != ZEROADDRESS) {
            addThreePoolPairInfo(_t0, _t1, _t2, info);
        }

        emit NewStableSwapPair(_swapContract, _t0, _t1, _t2, _LP);
    }

    function addThreePoolPairInfo(
        address _t0,
        address _t1,
        address _t2,
        StableSwapThreePoolPairInfo memory info
    ) internal {
        threePoolInfo[_t0][_t1] = info;
        threePoolInfo[_t0][_t2] = info;
        threePoolInfo[_t1][_t2] = info;
    }

    function addPairInfo(address _swapContract) external onlyOwner {
        IZFStableSwap swap = IZFStableSwap(_swapContract);
        uint256 N_COINS = swap.N_COINS();
        if (N_COINS == 2) {
            addPairInfoInternal(_swapContract, swap.coins(0), swap.coins(1), ZEROADDRESS, swap.token());
        } else if (N_COINS == 3) {
            addPairInfoInternal(_swapContract, swap.coins(0), swap.coins(1), swap.coins(2), swap.token());
        }
    }

    function getPairInfo(address _tokenA, address _tokenB) external view returns (StableSwapPairInfo memory info) {
        (address t0, address t1) = sortTokens(_tokenA, _tokenB);
        StableSwapThreePoolPairInfo memory pairInfo = stableSwapPairInfo[t0][t1][ZEROADDRESS];
        info.swapContract = pairInfo.swapContract;
        info.token0 = pairInfo.token0;
        info.token1 = pairInfo.token1;
        info.LPContract = pairInfo.LPContract;
    }

    function getThreePoolPairInfo(address _tokenA, address _tokenB)
        external
        view
        returns (StableSwapThreePoolPairInfo memory info)
    {
        (address t0, address t1) = sortTokens(_tokenA, _tokenB);
        info = threePoolInfo[t0][t1];
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

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

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

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

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

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

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

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

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions. 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 {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

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

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IZFStableSwap {
    function token() external view returns (address);

    function balances(uint256 i) external view returns (uint256);

    function N_COINS() external view returns (uint256);

    function RATES(uint256 i) external view returns (uint256);

    function coins(uint256 i) external view returns (address);

    function PRECISION_MUL(uint256 i) external view returns (uint256);

    function fee() external view returns (uint256);

    function protocol_fee() external view returns (uint256);

    function A() external view returns (uint256);

    function get_D_mem(uint256[2] memory _balances, uint256 amp) external view returns (uint256);

    function get_y(
        uint256 i,
        uint256 j,
        uint256 x,
        uint256[2] memory xp_
    ) external view returns (uint256);

    function calc_withdraw_one_coin(uint256 _token_amount, uint256 i) external view returns (uint256);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

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

    function mint(address _to, uint256 _amount) external;

    function burnFrom(address _to, uint256 _amount) external;

    function setMinter(address _newMinter) external;
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IZFStableSwapDeployer {
    function createSwapPair(
        address _tokenA,
        address _tokenB,
        uint256 _A,
        uint256 _fee,
        uint256 _protocol_fee,
        address _admin,
        address _LP
    ) external returns (address);

    function createSwapPair(
        address _tokenA,
        address _tokenB,
        address _tokenC,
        uint256 _A,
        uint256 _fee,
        uint256 _protocol_fee,
        address _admin,
        address _LP
    ) external returns (address);
}

// SPDX-License-Identifier: MIT
pragma solidity 0.8.23;

interface IZFStableSwapLPFactory {
    function createSwapLP(
        address _tokenA,
        address _tokenB,
        address _tokenC,
        address _minter
    ) external returns (address);
}

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

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

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

{
  "remappings": [
    "@zf/=lib/@zf/",
    "base64-sol/=lib/base64/",
    "forge-std/=lib/forge-std/src/",
    "@openzeppelin-v4/=lib/openzeppelin-contracts-4.9.3/",
    "@openzeppelin-v5/=lib/openzeppelin-contracts-5.2.0/",
    "#@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@uniswap/lib/contracts/=lib/solidity-lib.git/contracts/",
    "solmate/src/=lib/solmate/src/",
    "solidity-bytes-utils/contracts/=lib/solidity-bytes-utils/contracts/",
    "base64/=lib/base64/",
    "devtools/=lib/devtools/packages/toolbox-foundry/src/",
    "ds-test/=lib/solmate/lib/ds-test/src/",
    "erc4626-tests/=lib/openzeppelin-contracts/lib/erc4626-tests/",
    "halmos-cheatcodes/=lib/openzeppelin-contracts/lib/halmos-cheatcodes/src/",
    "layerzero-v2/=lib/layerzero-v2/",
    "openzeppelin-contracts-4.9.3/=lib/openzeppelin-contracts-4.9.3/",
    "openzeppelin-contracts-5.2.0/=lib/openzeppelin-contracts-5.2.0/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/contracts/",
    "solidity-lib.git/=lib/solidity-lib.git/contracts/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "shanghai",
  "viaIR": true,
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

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IZFStableSwapDeployer","name":"_SwapThreePoolDeployer","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"swapContract","type":"address"},{"indexed":false,"internalType":"address","name":"tokenA","type":"address"},{"indexed":false,"internalType":"address","name":"tokenB","type":"address"},{"indexed":false,"internalType":"address","name":"tokenC","type":"address"},{"indexed":false,"internalType":"address","name":"LP","type":"address"}],"name":"NewStableSwapPair","type":"event"},{"anonymous":false,"inputs":[{"indexed":true,"internalType":"address","name":"previousOwner","type":"address"},{"indexed":true,"internalType":"address","name":"newOwner","type":"address"}],"name":"OwnershipTransferred","type":"event"},{"inputs":[],"name":"LPFactory","outputs":[{"internalType":"contract IZFStableSwapLPFactory","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SwapThreePoolDeployer","outputs":[{"internalType":"contract IZFStableSwapDeployer","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"SwapTwoPoolDeployer","outputs":[{"internalType":"contract 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ZFStableSwapFactory.StableSwapPairInfo","name":"info","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_tokenA","type":"address"},{"internalType":"address","name":"_tokenB","type":"address"}],"name":"getThreePoolPairInfo","outputs":[{"components":[{"internalType":"address","name":"swapContract","type":"address"},{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"address","name":"token2","type":"address"},{"internalType":"address","name":"LPContract","type":"address"}],"internalType":"struct ZFStableSwapFactory.StableSwapThreePoolPairInfo","name":"info","type":"tuple"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"pairLength","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"},{"internalType":"address","name":"","type":"address"}],"name":"stableSwapPairInfo","outputs":[{"internalType":"address","name":"swapContract","type":"address"},{"internalType":"address","name":"token0","type":"address"},{"internalType":"address","name":"token1","type":"address"},{"internalType":"address","name":"token2","type":"address"},{"internalType":"address","name":"LPContract","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"swapPairContract","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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0000000000000000000000005271d6f66d4d881421fc2b1c48d4f99a9ba1d04c000000000000000000000000f43fc445204174ea98cf45b21504463d32c28189000000000000000000000000c19a303f856847e60aeddfc5b773017110b06e37

-----Decoded View---------------
Arg [0] : _LPFactory (address): 0x5271D6f66D4d881421fC2b1c48D4f99A9bA1D04c
Arg [1] : _SwapTwoPoolDeployer (address): 0xf43FC445204174EA98CF45B21504463d32C28189
Arg [2] : _SwapThreePoolDeployer (address): 0xC19A303f856847e60AeddfC5b773017110b06e37

-----Encoded View---------------
3 Constructor Arguments found :
Arg [0] : 0000000000000000000000005271d6f66d4d881421fc2b1c48d4f99a9ba1d04c
Arg [1] : 000000000000000000000000f43fc445204174ea98cf45b21504463d32c28189
Arg [2] : 000000000000000000000000c19a303f856847e60aeddfc5b773017110b06e37