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// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */
pragma solidity 0.7.6;

import "../interfaces/IPendleRouter.sol";
import "../interfaces/IPendleForge.sol";
import "../interfaces/IPendleLiquidityMining.sol";
import "../interfaces/IPendleYieldToken.sol";

contract PendleRedeemProxy {
    IPendleRouter public immutable router;

    constructor(address _router) {
        require(_router != address(0), "ZERO_ADDRESS");
        router = IPendleRouter(_router);
    }

    function redeem(
        address[] calldata _xyts,
        address[] calldata _markets,
        address[] calldata _liqMiningContracts,
        uint256[] calldata _expiries,
        uint256 _liqMiningRewardsCount
    )
        external
        returns (
            uint256[] memory xytInterests,
            uint256[] memory marketInterests,
            uint256[] memory rewards,
            uint256[] memory liqMiningInterests
        )
    {
        xytInterests = redeemXyts(_xyts);
        marketInterests = redeemMarkets(_markets);

        (rewards, liqMiningInterests) = redeemLiqMining(
            _liqMiningContracts,
            _expiries,
            _liqMiningRewardsCount
        );
    }

    function redeemXyts(address[] calldata xyts) public returns (uint256[] memory xytInterests) {
        xytInterests = new uint256[](xyts.length);
        for (uint256 i = 0; i < xyts.length; i++) {
            IPendleYieldToken xyt = IPendleYieldToken(xyts[i]);
            bytes32 forgeId = IPendleForge(xyt.forge()).forgeId();
            address underlyingAsset = xyt.underlyingAsset();
            uint256 expiry = xyt.expiry();
            xytInterests[i] = router.redeemDueInterests(
                forgeId,
                underlyingAsset,
                expiry,
                msg.sender
            );
        }
    }

    function redeemMarkets(address[] calldata markets)
        public
        returns (uint256[] memory marketInterests)
    {
        uint256 marketCount = markets.length;
        marketInterests = new uint256[](marketCount);
        for (uint256 i = 0; i < marketCount; i++) {
            marketInterests[i] = router.redeemLpInterests(markets[i], msg.sender);
        }
    }

    function redeemLiqMining(
        address[] calldata liqMiningContracts,
        uint256[] calldata expiries,
        uint256 liqMiningRewardsCount
    ) public returns (uint256[] memory rewards, uint256[] memory liqMiningInterests) {
        require(liqMiningRewardsCount <= liqMiningContracts.length, "INVALID_REWARDS_COUNT");
        require(expiries.length == liqMiningContracts.length, "ARRAY_LENGTH_MISMATCH");

        rewards = new uint256[](liqMiningRewardsCount);
        for (uint256 i = 0; i < liqMiningRewardsCount; i++) {
            rewards[i] = IPendleLiquidityMining(liqMiningContracts[i]).redeemRewards(
                expiries[i],
                msg.sender
            );
        }

        uint256 liqMiningInterestsCount = liqMiningContracts.length - liqMiningRewardsCount;
        liqMiningInterests = new uint256[](liqMiningInterestsCount);
        for (uint256 i = 0; i < liqMiningInterestsCount; i++) {
            uint256 arrayIndex = i + liqMiningRewardsCount;
            liqMiningInterests[i] = IPendleLiquidityMining(liqMiningContracts[arrayIndex])
                .redeemLpInterests(expiries[arrayIndex], msg.sender);
        }
    }
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;
pragma abicoder v2;

import "../interfaces/IWETH.sol";
import "./IPendleData.sol";
import "../libraries/PendleStructs.sol";
import "./IPendleMarketFactory.sol";

interface IPendleRouter {
    /**
     * @notice Emitted when a market for a future yield token and an ERC20 token is created.
     * @param marketFactoryId Forge identifier.
     * @param xyt The address of the tokenized future yield token as the base asset.
     * @param token The address of an ERC20 token as the quote asset.
     * @param market The address of the newly created market.
     **/
    event MarketCreated(
        bytes32 marketFactoryId,
        address indexed xyt,
        address indexed token,
        address indexed market
    );

    /**
     * @notice Emitted when a swap happens on the market.
     * @param trader The address of msg.sender.
     * @param inToken The input token.
     * @param outToken The output token.
     * @param exactIn The exact amount being traded.
     * @param exactOut The exact amount received.
     * @param market The market address.
     **/
    event SwapEvent(
        address indexed trader,
        address inToken,
        address outToken,
        uint256 exactIn,
        uint256 exactOut,
        address market
    );

    /**
     * @dev Emitted when user adds liquidity
     * @param sender The user who added liquidity.
     * @param token0Amount the amount of token0 (xyt) provided by user
     * @param token1Amount the amount of token1 provided by user
     * @param market The market address.
     * @param exactOutLp The exact LP minted
     */
    event Join(
        address indexed sender,
        uint256 token0Amount,
        uint256 token1Amount,
        address market,
        uint256 exactOutLp
    );

    /**
     * @dev Emitted when user removes liquidity
     * @param sender The user who removed liquidity.
     * @param token0Amount the amount of token0 (xyt) given to user
     * @param token1Amount the amount of token1 given to user
     * @param market The market address.
     * @param exactInLp The exact Lp to remove
     */
    event Exit(
        address indexed sender,
        uint256 token0Amount,
        uint256 token1Amount,
        address market,
        uint256 exactInLp
    );

    /**
     * @notice Gets a reference to the PendleData contract.
     * @return Returns the data contract reference.
     **/
    function data() external view returns (IPendleData);

    /**
     * @notice Gets a reference of the WETH9 token contract address.
     * @return WETH token reference.
     **/
    function weth() external view returns (IWETH);

    /***********
     *  FORGE  *
     ***********/

    function newYieldContracts(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external returns (address ot, address xyt);

    function redeemAfterExpiry(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external returns (uint256 redeemedAmount);

    function redeemDueInterests(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        address user
    ) external returns (uint256 interests);

    function redeemUnderlying(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        uint256 amountToRedeem
    ) external returns (uint256 redeemedAmount);

    function renewYield(
        bytes32 forgeId,
        uint256 oldExpiry,
        address underlyingAsset,
        uint256 newExpiry,
        uint256 renewalRate
    )
        external
        returns (
            uint256 redeemedAmount,
            uint256 amountRenewed,
            address ot,
            address xyt,
            uint256 amountTokenMinted
        );

    function tokenizeYield(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        uint256 amountToTokenize,
        address to
    )
        external
        returns (
            address ot,
            address xyt,
            uint256 amountTokenMinted
        );

    /***********
     *  MARKET *
     ***********/

    function addMarketLiquidityDual(
        bytes32 _marketFactoryId,
        address _xyt,
        address _token,
        uint256 _desiredXytAmount,
        uint256 _desiredTokenAmount,
        uint256 _xytMinAmount,
        uint256 _tokenMinAmount
    )
        external
        payable
        returns (
            uint256 amountXytUsed,
            uint256 amountTokenUsed,
            uint256 lpOut
        );

    function addMarketLiquiditySingle(
        bytes32 marketFactoryId,
        address xyt,
        address token,
        bool forXyt,
        uint256 exactInAsset,
        uint256 minOutLp
    ) external payable returns (uint256 exactOutLp);

    function removeMarketLiquidityDual(
        bytes32 marketFactoryId,
        address xyt,
        address token,
        uint256 exactInLp,
        uint256 minOutXyt,
        uint256 minOutToken
    ) external returns (uint256 exactOutXyt, uint256 exactOutToken);

    function removeMarketLiquiditySingle(
        bytes32 marketFactoryId,
        address xyt,
        address token,
        bool forXyt,
        uint256 exactInLp,
        uint256 minOutAsset
    ) external returns (uint256 exactOutXyt, uint256 exactOutToken);

    /**
     * @notice Creates a market given a protocol ID, future yield token, and an ERC20 token.
     * @param marketFactoryId Market Factory identifier.
     * @param xyt Token address of the future yield token as base asset.
     * @param token Token address of an ERC20 token as quote asset.
     * @return market Returns the address of the newly created market.
     **/
    function createMarket(
        bytes32 marketFactoryId,
        address xyt,
        address token
    ) external returns (address market);

    function bootstrapMarket(
        bytes32 marketFactoryId,
        address xyt,
        address token,
        uint256 initialXytLiquidity,
        uint256 initialTokenLiquidity
    ) external payable;

    function swapExactIn(
        address tokenIn,
        address tokenOut,
        uint256 inTotalAmount,
        uint256 minOutTotalAmount,
        bytes32 marketFactoryId
    ) external payable returns (uint256 outTotalAmount);

    function swapExactOut(
        address tokenIn,
        address tokenOut,
        uint256 outTotalAmount,
        uint256 maxInTotalAmount,
        bytes32 marketFactoryId
    ) external payable returns (uint256 inTotalAmount);

    function redeemLpInterests(address market, address user) external returns (uint256 interests);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

import "./IPendleRouter.sol";
import "./IPendleRewardManager.sol";
import "./IPendleYieldContractDeployer.sol";

interface IPendleForge {
    /**
     * @dev Emitted when the Forge has minted the OT and XYT tokens.
     * @param forgeId The forgeId
     * @param underlyingAsset The address of the underlying yield token.
     * @param expiry The expiry of the XYT token
     * @param amountToTokenize The amount of yield bearing assets to tokenize
     * @param amountTokenMinted The amount of OT/XYT minted
     **/
    event MintYieldTokens(
        bytes32 forgeId,
        address indexed underlyingAsset,
        uint256 indexed expiry,
        uint256 amountToTokenize,
        uint256 amountTokenMinted,
        address indexed user
    );

    /**
     * @dev Emitted when the Forge has created new yield token contracts.
     * @param forgeId The forgeId
     * @param underlyingAsset The address of the underlying asset.
     * @param expiry The date in epoch time when the contract will expire.
     * @param ot The address of the ownership token.
     * @param xyt The address of the new future yield token.
     **/
    event NewYieldContracts(
        bytes32 forgeId,
        address indexed underlyingAsset,
        uint256 indexed expiry,
        address ot,
        address xyt,
        address yieldBearingAsset
    );

    /**
     * @dev Emitted when the Forge has redeemed the OT and XYT tokens.
     * @param forgeId The forgeId
     * @param underlyingAsset the address of the underlying asset
     * @param expiry The expiry of the XYT token
     * @param amountToRedeem The amount of OT to be redeemed.
     * @param redeemedAmount The amount of yield token received
     **/
    event RedeemYieldToken(
        bytes32 forgeId,
        address indexed underlyingAsset,
        uint256 indexed expiry,
        uint256 amountToRedeem,
        uint256 redeemedAmount,
        address indexed user
    );

    /**
     * @dev Emitted when interest claim is settled
     * @param forgeId The forgeId
     * @param underlyingAsset the address of the underlying asset
     * @param expiry The expiry of the XYT token
     * @param user Interest receiver Address
     * @param amount The amount of interest claimed
     **/
    event DueInterestsSettled(
        bytes32 forgeId,
        address indexed underlyingAsset,
        uint256 indexed expiry,
        uint256 amount,
        uint256 forgeFeeAmount,
        address indexed user
    );

    /**
     * @dev Emitted when forge fee is withdrawn
     * @param forgeId The forgeId
     * @param underlyingAsset the address of the underlying asset
     * @param expiry The expiry of the XYT token
     * @param amount The amount of interest claimed
     **/
    event ForgeFeeWithdrawn(
        bytes32 forgeId,
        address indexed underlyingAsset,
        uint256 indexed expiry,
        uint256 amount
    );

    function setUpEmergencyMode(
        address _underlyingAsset,
        uint256 _expiry,
        address spender
    ) external;

    function newYieldContracts(address underlyingAsset, uint256 expiry)
        external
        returns (address ot, address xyt);

    function redeemAfterExpiry(
        address user,
        address underlyingAsset,
        uint256 expiry
    ) external returns (uint256 redeemedAmount);

    function redeemDueInterests(
        address user,
        address underlyingAsset,
        uint256 expiry
    ) external returns (uint256 interests);

    function updateDueInterests(
        address underlyingAsset,
        uint256 expiry,
        address user
    ) external;

    function updatePendingRewards(
        address _underlyingAsset,
        uint256 _expiry,
        address _user
    ) external;

    function redeemUnderlying(
        address user,
        address underlyingAsset,
        uint256 expiry,
        uint256 amountToRedeem
    ) external returns (uint256 redeemedAmount);

    function mintOtAndXyt(
        address underlyingAsset,
        uint256 expiry,
        uint256 amountToTokenize,
        address to
    )
        external
        returns (
            address ot,
            address xyt,
            uint256 amountTokenMinted
        );

    function withdrawForgeFee(address underlyingAsset, uint256 expiry) external;

    function getYieldBearingToken(address underlyingAsset) external returns (address);

    /**
     * @notice Gets a reference to the PendleRouter contract.
     * @return Returns the router contract reference.
     **/
    function router() external view returns (IPendleRouter);

    function data() external view returns (IPendleData);

    function rewardManager() external view returns (IPendleRewardManager);

    function yieldContractDeployer() external view returns (IPendleYieldContractDeployer);

    function rewardToken() external view returns (IERC20);

    /**
     * @notice Gets the bytes32 ID of the forge.
     * @return Returns the forge and protocol identifier.
     **/
    function forgeId() external view returns (bytes32);

    function dueInterests(
        address _underlyingAsset,
        uint256 expiry,
        address _user
    ) external view returns (uint256);

    function yieldTokenHolders(address _underlyingAsset, uint256 _expiry)
        external
        view
        returns (address yieldTokenHolder);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

interface IPendleLiquidityMining {
    event Funded(uint256[] _rewards, uint256 numberOfEpochs);
    event RewardsToppedUp(uint256[] _epochIds, uint256[] _rewards);
    event AllocationSettingSet(uint256[] _expiries, uint256[] _allocationNumerators);
    event Staked(uint256 expiry, address user, uint256 amount);
    event Withdrawn(uint256 expiry, address user, uint256 amount);
    event PendleRewardsSettled(uint256 expiry, address user, uint256 amount);

    /**
     * @notice fund new epochs
     */
    function fund(uint256[] calldata rewards) external;

    /**
    @notice top up rewards for any funded future epochs (but not to create new epochs)
    */
    function topUpRewards(uint256[] calldata _epochIds, uint256[] calldata _rewards) external;

    /**
     * @notice Stake an exact amount of LP_expiry
     */
    function stake(uint256 expiry, uint256 amount) external returns (address);

    /**
     * @notice Stake an exact amount of LP_expiry, using a permit
     */
    function stakeWithPermit(
        uint256 expiry,
        uint256 amount,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external returns (address);

    /**
     * @notice Withdraw an exact amount of LP_expiry
     */
    function withdraw(uint256 expiry, uint256 amount) external;

    /**
     * @notice Get the pending rewards for a user
     * @return rewards Returns rewards[0] as the rewards available now, as well as rewards
     that can be claimed for subsequent epochs (size of rewards array is numberOfEpochs)
     */
    function redeemRewards(uint256 expiry, address user) external returns (uint256 rewards);

    /**
     * @notice Get the pending LP interests for a staker
     * @return dueInterests Returns the interest amount
     */
    function redeemLpInterests(uint256 expiry, address user)
        external
        returns (uint256 dueInterests);

    /**
     * @notice Let the liqMiningEmergencyHandler call to approve spender to spend tokens from liqMiningContract
     *          and to spend tokensForLpHolder from the respective lp holders for expiries specified
     */
    function setUpEmergencyMode(uint256[] calldata expiries, address spender) external;

    /**
     * @notice Read the all the expiries that user has staked LP for
     */
    function readUserExpiries(address user) external view returns (uint256[] memory expiries);

    /**
     * @notice Read the amount of LP_expiry staked for a user
     */
    function getBalances(uint256 expiry, address user) external view returns (uint256);

    function lpHolderForExpiry(uint256 expiry) external view returns (address);

    function startTime() external view returns (uint256);

    function epochDuration() external view returns (uint256);

    function totalRewardsForEpoch(uint256) external view returns (uint256);

    function numberOfEpochs() external view returns (uint256);

    function vestingEpochs() external view returns (uint256);

    function baseToken() external view returns (address);

    function underlyingAsset() external view returns (address);

    function underlyingYieldToken() external view returns (address);

    function pendleTokenAddress() external view returns (address);

    function marketFactoryId() external view returns (bytes32);

    function forgeId() external view returns (bytes32);

    function forge() external view returns (address);

    function readAllExpiriesLength() external view returns (uint256);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import "./IPendleBaseToken.sol";
import "./IPendleForge.sol";

interface IPendleYieldToken is IERC20, IPendleBaseToken {
    /**
     * @notice Emitted when burning OT or XYT tokens.
     * @param user The address performing the burn.
     * @param amount The amount to be burned.
     **/
    event Burn(address indexed user, uint256 amount);

    /**
     * @notice Emitted when minting OT or XYT tokens.
     * @param user The address performing the mint.
     * @param amount The amount to be minted.
     **/
    event Mint(address indexed user, uint256 amount);

    /**
     * @notice Burns OT or XYT tokens from user, reducing the total supply.
     * @param user The address performing the burn.
     * @param amount The amount to be burned.
     **/
    function burn(address user, uint256 amount) external;

    /**
     * @notice Mints new OT or XYT tokens for user, increasing the total supply.
     * @param user The address to send the minted tokens.
     * @param amount The amount to be minted.
     **/
    function mint(address user, uint256 amount) external;

    /**
     * @notice Gets the forge address of the PendleForge contract for this yield token.
     * @return Retuns the forge address.
     **/
    function forge() external view returns (IPendleForge);

    /**
     * @notice Returns the address of the underlying asset.
     * @return Returns the underlying asset address.
     **/
    function underlyingAsset() external view returns (address);

    /**
     * @notice Returns the address of the underlying yield token.
     * @return Returns the underlying yield token address.
     **/
    function underlyingYieldToken() external view returns (address);

    /**
     * @notice let the router approve itself to spend OT/XYT/LP from any wallet
     * @param user user to approve
     **/
    function approveRouter(address user) external;
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */
pragma solidity 0.7.6;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IWETH is IERC20 {
    function deposit() external payable;

    function withdraw(uint256 wad) external;
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

import "./IPendleRouter.sol";
import "./IPendleYieldToken.sol";
import "./IPendlePausingManager.sol";
import "./IPendleMarket.sol";

interface IPendleData {
    /**
     * @notice Emitted when validity of a forge-factory pair is updated
     * @param _forgeId the forge id
     * @param _marketFactoryId the market factory id
     * @param _valid valid or not
     **/
    event ForgeFactoryValiditySet(bytes32 _forgeId, bytes32 _marketFactoryId, bool _valid);

    /**
     * @notice Emitted when Pendle and PendleFactory addresses have been updated.
     * @param treasury The address of the new treasury contract.
     **/
    event TreasurySet(address treasury);

    /**
     * @notice Emitted when LockParams is changed
     **/
    event LockParamsSet(uint256 lockNumerator, uint256 lockDenominator);

    /**
     * @notice Emitted when ExpiryDivisor is changed
     **/
    event ExpiryDivisorSet(uint256 expiryDivisor);

    /**
     * @notice Emitted when forge fee is changed
     **/
    event ForgeFeeSet(uint256 forgeFee);

    /**
     * @notice Emitted when interestUpdateRateDeltaForMarket is changed
     * @param interestUpdateRateDeltaForMarket new interestUpdateRateDeltaForMarket setting
     **/
    event InterestUpdateRateDeltaForMarketSet(uint256 interestUpdateRateDeltaForMarket);

    /**
     * @notice Emitted when market fees are changed
     * @param _swapFee new swapFee setting
     * @param _protocolSwapFee new protocolSwapFee setting
     **/
    event MarketFeesSet(uint256 _swapFee, uint256 _protocolSwapFee);

    /**
     * @notice Emitted when the curve shift block delta is changed
     * @param _blockDelta new block delta setting
     **/
    event CurveShiftBlockDeltaSet(uint256 _blockDelta);

    /**
     * @dev Emitted when new forge is added
     * @param marketFactoryId Human Readable Market Factory ID in Bytes
     * @param marketFactoryAddress The Market Factory Address
     */
    event NewMarketFactory(bytes32 indexed marketFactoryId, address indexed marketFactoryAddress);

    /**
     * @notice Set/update validity of a forge-factory pair
     * @param _forgeId the forge id
     * @param _marketFactoryId the market factory id
     * @param _valid valid or not
     **/
    function setForgeFactoryValidity(
        bytes32 _forgeId,
        bytes32 _marketFactoryId,
        bool _valid
    ) external;

    /**
     * @notice Sets the PendleTreasury contract addresses.
     * @param newTreasury Address of new treasury contract.
     **/
    function setTreasury(address newTreasury) external;

    /**
     * @notice Gets a reference to the PendleRouter contract.
     * @return Returns the router contract reference.
     **/
    function router() external view returns (IPendleRouter);

    /**
     * @notice Gets a reference to the PendleRouter contract.
     * @return Returns the router contract reference.
     **/
    function pausingManager() external view returns (IPendlePausingManager);

    /**
     * @notice Gets the treasury contract address where fees are being sent to.
     * @return Address of the treasury contract.
     **/
    function treasury() external view returns (address);

    /***********
     *  FORGE  *
     ***********/

    /**
     * @notice Emitted when a forge for a protocol is added.
     * @param forgeId Forge and protocol identifier.
     * @param forgeAddress The address of the added forge.
     **/
    event ForgeAdded(bytes32 indexed forgeId, address indexed forgeAddress);

    /**
     * @notice Adds a new forge for a protocol.
     * @param forgeId Forge and protocol identifier.
     * @param forgeAddress The address of the added forge.
     **/
    function addForge(bytes32 forgeId, address forgeAddress) external;

    /**
     * @notice Store new OT and XYT details.
     * @param forgeId Forge and protocol identifier.
     * @param ot The address of the new XYT.
     * @param xyt The address of the new XYT.
     * @param underlyingAsset Token address of the underlying asset.
     * @param expiry Yield contract expiry in epoch time.
     **/
    function storeTokens(
        bytes32 forgeId,
        address ot,
        address xyt,
        address underlyingAsset,
        uint256 expiry
    ) external;

    /**
     * @notice Set a new forge fee
     * @param _forgeFee new forge fee
     **/
    function setForgeFee(uint256 _forgeFee) external;

    /**
     * @notice Gets the OT and XYT tokens.
     * @param forgeId Forge and protocol identifier.
     * @param underlyingYieldToken Token address of the underlying yield token.
     * @param expiry Yield contract expiry in epoch time.
     * @return ot The OT token references.
     * @return xyt The XYT token references.
     **/
    function getPendleYieldTokens(
        bytes32 forgeId,
        address underlyingYieldToken,
        uint256 expiry
    ) external view returns (IPendleYieldToken ot, IPendleYieldToken xyt);

    /**
     * @notice Gets a forge given the identifier.
     * @param forgeId Forge and protocol identifier.
     * @return forgeAddress Returns the forge address.
     **/
    function getForgeAddress(bytes32 forgeId) external view returns (address forgeAddress);

    /**
     * @notice Checks if an XYT token is valid.
     * @param forgeId The forgeId of the forge.
     * @param underlyingAsset Token address of the underlying asset.
     * @param expiry Yield contract expiry in epoch time.
     * @return True if valid, false otherwise.
     **/
    function isValidXYT(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external view returns (bool);

    /**
     * @notice Checks if an OT token is valid.
     * @param forgeId The forgeId of the forge.
     * @param underlyingAsset Token address of the underlying asset.
     * @param expiry Yield contract expiry in epoch time.
     * @return True if valid, false otherwise.
     **/
    function isValidOT(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external view returns (bool);

    function validForgeFactoryPair(bytes32 _forgeId, bytes32 _marketFactoryId)
        external
        view
        returns (bool);

    /**
     * @notice Gets a reference to a specific OT.
     * @param forgeId Forge and protocol identifier.
     * @param underlyingYieldToken Token address of the underlying yield token.
     * @param expiry Yield contract expiry in epoch time.
     * @return ot Returns the reference to an OT.
     **/
    function otTokens(
        bytes32 forgeId,
        address underlyingYieldToken,
        uint256 expiry
    ) external view returns (IPendleYieldToken ot);

    /**
     * @notice Gets a reference to a specific XYT.
     * @param forgeId Forge and protocol identifier.
     * @param underlyingAsset Token address of the underlying asset
     * @param expiry Yield contract expiry in epoch time.
     * @return xyt Returns the reference to an XYT.
     **/
    function xytTokens(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external view returns (IPendleYieldToken xyt);

    /***********
     *  MARKET *
     ***********/

    event MarketPairAdded(address indexed market, address indexed xyt, address indexed token);

    function addMarketFactory(bytes32 marketFactoryId, address marketFactoryAddress) external;

    function isMarket(address _addr) external view returns (bool result);

    function isXyt(address _addr) external view returns (bool result);

    function addMarket(
        bytes32 marketFactoryId,
        address xyt,
        address token,
        address market
    ) external;

    function setMarketFees(uint256 _swapFee, uint256 _protocolSwapFee) external;

    function setInterestUpdateRateDeltaForMarket(uint256 _interestUpdateRateDeltaForMarket)
        external;

    function setLockParams(uint256 _lockNumerator, uint256 _lockDenominator) external;

    function setExpiryDivisor(uint256 _expiryDivisor) external;

    function setCurveShiftBlockDelta(uint256 _blockDelta) external;

    /**
     * @notice Displays the number of markets currently existing.
     * @return Returns markets length,
     **/
    function allMarketsLength() external view returns (uint256);

    function forgeFee() external view returns (uint256);

    function interestUpdateRateDeltaForMarket() external view returns (uint256);

    function expiryDivisor() external view returns (uint256);

    function lockNumerator() external view returns (uint256);

    function lockDenominator() external view returns (uint256);

    function swapFee() external view returns (uint256);

    function protocolSwapFee() external view returns (uint256);

    function curveShiftBlockDelta() external view returns (uint256);

    function getMarketByIndex(uint256 index) external view returns (address market);

    /**
     * @notice Gets a market given a future yield token and an ERC20 token.
     * @param xyt Token address of the future yield token as base asset.
     * @param token Token address of an ERC20 token as quote asset.
     * @return market Returns the market address.
     **/
    function getMarket(
        bytes32 marketFactoryId,
        address xyt,
        address token
    ) external view returns (address market);

    /**
     * @notice Gets a market factory given the identifier.
     * @param marketFactoryId MarketFactory identifier.
     * @return marketFactoryAddress Returns the factory address.
     **/
    function getMarketFactoryAddress(bytes32 marketFactoryId)
        external
        view
        returns (address marketFactoryAddress);

    function getMarketFromKey(
        address xyt,
        address token,
        bytes32 marketFactoryId
    ) external view returns (address market);
}

// SPDX-License-Identifier: GPL-2.0-or-later
pragma solidity 0.7.6;

struct TokenReserve {
    uint256 weight;
    uint256 balance;
}

struct PendingTransfer {
    uint256 amount;
    bool isOut;
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

import "./IPendleRouter.sol";

interface IPendleMarketFactory {
    /**
     * @notice Creates a market given a protocol ID, future yield token, and an ERC20 token.
     * @param xyt Token address of the futuonlyCorere yield token as base asset.
     * @param token Token address of an ERC20 token as quote asset.
     * @return market Returns the address of the newly created market.
     **/
    function createMarket(address xyt, address token) external returns (address market);

    /**
     * @notice Gets a reference to the PendleRouter contract.
     * @return Returns the router contract reference.
     **/
    function router() external view returns (IPendleRouter);

    function marketFactoryId() external view returns (bytes32);
}

// SPDX-License-Identifier: MIT

pragma solidity >=0.6.0 <0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
interface IERC20 {
    /**
     * @dev Returns the amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

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

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

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

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

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

    /**
     * @dev Emitted when `value` tokens are moved from one account (`from`) to
     * another (`to`).
     *
     * Note that `value` may be zero.
     */
    event Transfer(address indexed from, address indexed to, uint256 value);

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

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */
pragma solidity 0.7.6;

interface IPendlePausingManager {
    event AddPausingAdmin(address admin);
    event RemovePausingAdmin(address admin);
    event PendingForgeEmergencyHandler(address _pendingForgeHandler);
    event PendingMarketEmergencyHandler(address _pendingMarketHandler);
    event PendingLiqMiningEmergencyHandler(address _pendingLiqMiningHandler);
    event ForgeEmergencyHandlerSet(address forgeEmergencyHandler);
    event MarketEmergencyHandlerSet(address marketEmergencyHandler);
    event LiqMiningEmergencyHandlerSet(address liqMiningEmergencyHandler);

    event PausingManagerLocked();
    event ForgeHandlerLocked();
    event MarketHandlerLocked();
    event LiqMiningHandlerLocked();

    event SetForgePaused(bytes32 forgeId, bool settingToPaused);
    event SetForgeAssetPaused(bytes32 forgeId, address underlyingAsset, bool settingToPaused);
    event SetForgeAssetExpiryPaused(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        bool settingToPaused
    );

    event SetForgeLocked(bytes32 forgeId);
    event SetForgeAssetLocked(bytes32 forgeId, address underlyingAsset);
    event SetForgeAssetExpiryLocked(bytes32 forgeId, address underlyingAsset, uint256 expiry);

    event SetMarketFactoryPaused(bytes32 marketFactoryId, bool settingToPaused);
    event SetMarketPaused(bytes32 marketFactoryId, address market, bool settingToPaused);

    event SetMarketFactoryLocked(bytes32 marketFactoryId);
    event SetMarketLocked(bytes32 marketFactoryId, address market);

    event SetLiqMiningPaused(address liqMiningContract, bool settingToPaused);
    event SetLiqMiningLocked(address liqMiningContract);

    function forgeEmergencyHandler()
        external
        view
        returns (
            address handler,
            address pendingHandler,
            uint256 timelockDeadline
        );

    function marketEmergencyHandler()
        external
        view
        returns (
            address handler,
            address pendingHandler,
            uint256 timelockDeadline
        );

    function liqMiningEmergencyHandler()
        external
        view
        returns (
            address handler,
            address pendingHandler,
            uint256 timelockDeadline
        );

    function permLocked() external view returns (bool);

    function permForgeHandlerLocked() external view returns (bool);

    function permMarketHandlerLocked() external view returns (bool);

    function permLiqMiningHandlerLocked() external view returns (bool);

    function isPausingAdmin(address) external view returns (bool);

    function setPausingAdmin(address admin, bool isAdmin) external;

    function requestForgeHandlerChange(address _pendingForgeHandler) external;

    function requestMarketHandlerChange(address _pendingMarketHandler) external;

    function requestLiqMiningHandlerChange(address _pendingLiqMiningHandler) external;

    function applyForgeHandlerChange() external;

    function applyMarketHandlerChange() external;

    function applyLiqMiningHandlerChange() external;

    function lockPausingManagerPermanently() external;

    function lockForgeHandlerPermanently() external;

    function lockMarketHandlerPermanently() external;

    function lockLiqMiningHandlerPermanently() external;

    function setForgePaused(bytes32 forgeId, bool paused) external;

    function setForgeAssetPaused(
        bytes32 forgeId,
        address underlyingAsset,
        bool paused
    ) external;

    function setForgeAssetExpiryPaused(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        bool paused
    ) external;

    function setForgeLocked(bytes32 forgeId) external;

    function setForgeAssetLocked(bytes32 forgeId, address underlyingAsset) external;

    function setForgeAssetExpiryLocked(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external;

    function checkYieldContractStatus(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry
    ) external returns (bool _paused, bool _locked);

    function setMarketFactoryPaused(bytes32 marketFactoryId, bool paused) external;

    function setMarketPaused(
        bytes32 marketFactoryId,
        address market,
        bool paused
    ) external;

    function setMarketFactoryLocked(bytes32 marketFactoryId) external;

    function setMarketLocked(bytes32 marketFactoryId, address market) external;

    function checkMarketStatus(bytes32 marketFactoryId, address market)
        external
        returns (bool _paused, bool _locked);

    function setLiqMiningPaused(address liqMiningContract, bool settingToPaused) external;

    function setLiqMiningLocked(address liqMiningContract) external;

    function checkLiqMiningStatus(address liqMiningContract)
        external
        returns (bool _paused, bool _locked);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;
pragma abicoder v2;

import "./IPendleRouter.sol";
import "./IPendleBaseToken.sol";
import "../libraries/PendleStructs.sol";
import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IPendleMarket is IERC20 {
    /**
     * @notice Emitted when reserves pool has been updated
     * @param reserve0 The XYT reserves.
     * @param weight0  The XYT weight
     * @param reserve1 The generic token reserves.
     * For the generic Token weight it can be inferred by (2^40) - weight0
     **/
    event Sync(uint256 reserve0, uint256 weight0, uint256 reserve1);

    function setUpEmergencyMode(address spender) external;

    function bootstrap(
        address user,
        uint256 initialXytLiquidity,
        uint256 initialTokenLiquidity
    ) external returns (PendingTransfer[2] memory transfers, uint256 exactOutLp);

    function addMarketLiquiditySingle(
        address user,
        address inToken,
        uint256 inAmount,
        uint256 minOutLp
    ) external returns (PendingTransfer[2] memory transfers, uint256 exactOutLp);

    function addMarketLiquidityDual(
        address user,
        uint256 _desiredXytAmount,
        uint256 _desiredTokenAmount,
        uint256 _xytMinAmount,
        uint256 _tokenMinAmount
    ) external returns (PendingTransfer[2] memory transfers, uint256 lpOut);

    function removeMarketLiquidityDual(
        address user,
        uint256 inLp,
        uint256 minOutXyt,
        uint256 minOutToken
    ) external returns (PendingTransfer[2] memory transfers);

    function removeMarketLiquiditySingle(
        address user,
        address outToken,
        uint256 exactInLp,
        uint256 minOutToken
    ) external returns (PendingTransfer[2] memory transfers);

    function swapExactIn(
        address inToken,
        uint256 inAmount,
        address outToken,
        uint256 minOutAmount
    ) external returns (uint256 outAmount, PendingTransfer[2] memory transfers);

    function swapExactOut(
        address inToken,
        uint256 maxInAmount,
        address outToken,
        uint256 outAmount
    ) external returns (uint256 inAmount, PendingTransfer[2] memory transfers);

    function redeemLpInterests(address user) external returns (uint256 interests);

    function getReserves()
        external
        view
        returns (
            uint256 xytBalance,
            uint256 xytWeight,
            uint256 tokenBalance,
            uint256 tokenWeight,
            uint256 currentBlock
        );

    function factoryId() external view returns (bytes32);

    function token() external view returns (address);

    function xyt() external view returns (address);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */

pragma solidity 0.7.6;

import "@openzeppelin/contracts/token/ERC20/IERC20.sol";

interface IPendleBaseToken is IERC20 {
    /**
     * @notice Decreases the allowance granted to spender by the caller.
     * @param spender The address to reduce the allowance from.
     * @param subtractedValue The amount allowance to subtract.
     * @return Returns true if allowance has decreased, otherwise false.
     **/
    function decreaseAllowance(address spender, uint256 subtractedValue) external returns (bool);

    /**
     * @notice The yield contract start in epoch time.
     * @return Returns the yield start date.
     **/
    function start() external view returns (uint256);

    /**
     * @notice The yield contract expiry in epoch time.
     * @return Returns the yield expiry date.
     **/
    function expiry() external view returns (uint256);

    /**
     * @notice Increases the allowance granted to spender by the caller.
     * @param spender The address to increase the allowance from.
     * @param addedValue The amount allowance to add.
     * @return Returns true if allowance has increased, otherwise false
     **/
    function increaseAllowance(address spender, uint256 addedValue) external returns (bool);

    /**
     * @notice Returns the number of decimals the token uses.
     * @return Returns the token's decimals.
     **/
    function decimals() external view returns (uint8);

    /**
     * @notice Returns the name of the token.
     * @return Returns the token's name.
     **/
    function name() external view returns (string memory);

    /**
     * @notice Returns the symbol of the token.
     * @return Returns the token's symbol.
     **/
    function symbol() external view returns (string memory);

    /**
     * @notice approve using the owner's signature
     **/
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */
pragma solidity 0.7.6;

interface IPendleRewardManager {
    event UpdateFrequencySet(address[], uint256[]);
    event SkippingRewardsSet(bool);

    event DueRewardsSettled(
        bytes32 forgeId,
        address underlyingAsset,
        uint256 expiry,
        uint256 amountOut,
        address user
    );

    function redeemRewards(
        address _underlyingAsset,
        uint256 _expiry,
        address _user
    ) external returns (uint256 dueRewards);

    function updatePendingRewards(
        address _underlyingAsset,
        uint256 _expiry,
        address _user
    ) external;

    function updateParamLManual(address _underlyingAsset, uint256 _expiry) external;

    function setUpdateFrequency(
        address[] calldata underlyingAssets,
        uint256[] calldata frequencies
    ) external;

    function setSkippingRewards(bool skippingRewards) external;

    function forgeId() external returns (bytes32);
}

// SPDX-License-Identifier: MIT
/*
 * MIT License
 * ===========
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 */
pragma solidity 0.7.6;

interface IPendleYieldContractDeployer {
    function forgeId() external returns (bytes32);

    function forgeOwnershipToken(
        address _underlyingAsset,
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        uint256 _expiry
    ) external returns (address ot);

    function forgeFutureYieldToken(
        address _underlyingAsset,
        string memory _name,
        string memory _symbol,
        uint8 _decimals,
        uint256 _expiry
    ) external returns (address xyt);

    function deployYieldTokenHolder(address yieldToken, uint256 expiry)
        external
        returns (address yieldTokenHolder);
}

{
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "abi"
      ]
    }
  },
  "libraries": {}
}

• No Contract Security Audit Submitted- Submit Audit Here

[{"inputs":[{"internalType":"address","name":"_router","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[{"internalType":"address[]","name":"_xyts","type":"address[]"},{"internalType":"address[]","name":"_markets","type":"address[]"},{"internalType":"address[]","name":"_liqMiningContracts","type":"address[]"},{"internalType":"uint256[]","name":"_expiries","type":"uint256[]"},{"internalType":"uint256","name":"_liqMiningRewardsCount","type":"uint256"}],"name":"redeem","outputs":[{"internalType":"uint256[]","name":"xytInterests","type":"uint256[]"},{"internalType":"uint256[]","name":"marketInterests","type":"uint256[]"},{"internalType":"uint256[]","name":"rewards","type":"uint256[]"},{"internalType":"uint256[]","name":"liqMiningInterests","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"liqMiningContracts","type":"address[]"},{"internalType":"uint256[]","name":"expiries","type":"uint256[]"},{"internalType":"uint256","name":"liqMiningRewardsCount","type":"uint256"}],"name":"redeemLiqMining","outputs":[{"internalType":"uint256[]","name":"rewards","type":"uint256[]"},{"internalType":"uint256[]","name":"liqMiningInterests","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"markets","type":"address[]"}],"name":"redeemMarkets","outputs":[{"internalType":"uint256[]","name":"marketInterests","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address[]","name":"xyts","type":"address[]"}],"name":"redeemXyts","outputs":[{"internalType":"uint256[]","name":"xytInterests","type":"uint256[]"}],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"router","outputs":[{"internalType":"contract IPendleRouter","name":"","type":"address"}],"stateMutability":"view","type":"function"}]

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0000000000000000000000001b6d3e5da9004668e14ca39d1553e9a46fe842b3

-----Decoded View---------------
Arg [0] : _router (address): 0x1b6d3E5Da9004668E14Ca39d1553E9a46Fe842B3

-----Encoded View---------------
1 Constructor Arguments found :
Arg [0] : 0000000000000000000000001b6d3e5da9004668e14ca39d1553e9a46fe842b3