// SPDX-License-Identifier: MIT

pragma solidity ^0.8.23;

import {IERC20Metadata} from "@openzeppelin-4/contracts/token/ERC20/extensions/IERC20Metadata.sol";
import {SafeERC20} from "@openzeppelin-4/contracts/token/ERC20/utils/SafeERC20.sol";
import {StratFeeManagerInitializable, IFeeConfig} from "../StratFeeManagerInitializable.sol";
import {IRewardPool} from "../../interfaces/beefy/IRewardPool.sol";
import {IBeefyVaultConcLiq} from "../../interfaces/beefy/IBeefyVaultConcLiq.sol";
import {IStrategyConcLiq} from "../../interfaces/beefy/IStrategyConcLiq.sol";
import {IBeefySwapper} from "../../interfaces/beefy/IBeefySwapper.sol";
import {IStrategyFactory} from "../../interfaces/beefy/IStrategyFactory.sol";

/// @title Beefy Reward Pool Strategy. Version: Beefy Reward Pool
/// @author kexley, Beefy
/// @notice This contract compounds rewards for a Beefy CLM.
contract StrategyRewardPool is StratFeeManagerInitializable {
    using SafeERC20 for IERC20Metadata;

    /// @notice clm token address
    address public want;

    /// @notice token0
    address public token0;

    /// @notice token1
    address public token1;

    /// @notice Reward token array
    address[] public rewards;

    /// @dev Location of a reward in the token array
    mapping(address => uint256) index;

    /// @notice Reward pool for clm rewards
    address public rewardPool;

    /// @notice Whether to harvest on deposit
    bool public harvestOnDeposit;
    
    /// @notice Total profit locked on the strategy
    uint256 public totalLocked;

    /// @notice Length of time in seconds to linearly unlock the profit from a harvest
    uint256 public duration;

    /// @notice Allowed slippage when adding liquidity
    uint256 public slippage;

    /// @dev Underlying LP is volatile
    error NotCalm();
    /// @dev Reward entered is a protected token
    error RewardNotAllowed(address reward);
    /// @dev Reward is already in the array
    error RewardAlreadySet(address reward);
    /// @dev Reward is not found in the array
    error RewardNotFound(address reward);
    /// @dev Set slippage is out of bounds
    error SlippageOutOfBounds(uint256 slippage);

    /// @notice Strategy has been harvested
    /// @param harvester Caller of the harvest
    /// @param wantHarvested Amount of want harvested in this tx
    /// @param tvl Total amount of deposits at the time of harvest
    event StratHarvest(address indexed harvester, uint256 wantHarvested, uint256 tvl);
    /// @notice Want tokens have been deposited into the underlying platform
    /// @param tvl Total amount of deposits at the time of deposit 
    event Deposit(uint256 tvl);
    /// @notice Want tokens have been withdrawn by a user
    /// @param tvl Total amount of deposits at the time of withdrawal
    event Withdraw(uint256 tvl);
    /// @notice Fees were charged
    /// @param callFees Amount of native sent to the caller as a harvest reward
    /// @param beefyFees Amount of native sent to the beefy fee recipient
    /// @param strategistFees Amount of native sent to the strategist
    event ChargedFees(uint256 callFees, uint256 beefyFees, uint256 strategistFees);
    /// @notice Duration of the locked profit degradation has been set
    /// @param duration Duration of the locked profit degradation
    event SetDuration(uint256 duration);
    /// @notice A new reward has been added to the array
    /// @param reward New reward
    event SetReward(address reward);
    /// @notice A reward has been removed from the array
    /// @param reward Reward that has been removed
    event RemoveReward(address reward);
    /// @notice Set the slippage to a new value
    /// @param slippage Slippage when adding liquidity
    event SetSlippage(uint256 slippage);

    /// @notice Initialize the contract, callable only once
    /// @param _want clm address
    /// @param _rewardPool Reward pool address
    /// @param _commonAddresses The typical addresses required by a strategy (see StratManager)
    function initialize(
        address _want,
        address _rewardPool,
        CommonAddresses calldata _commonAddresses
    ) external initializer {
        __StratFeeManager_init(_commonAddresses);
        want = _want;
        native = IStrategyFactory(_commonAddresses.factory).native();
        rewardPool = _rewardPool;
        duration = 3 days;
        slippage = 0.98 ether;

        (token0, token1) = IBeefyVaultConcLiq(want).wants();

        harvestOnDeposit = true;

        _giveAllowances();
    }

    /// @notice Deposit all available want on this contract into the underlying platform
    function deposit() public whenNotPaused {
        uint256 wantBal = IERC20Metadata(want).balanceOf(address(this));

        if (wantBal > 0) {
            IRewardPool(rewardPool).stake(wantBal);
            emit Deposit(balanceOf());
        }
    }

    /// @notice Withdraw some amount of want back to the vault
    /// @param _amount Some amount to withdraw back to vault
    function withdraw(uint256 _amount) external {
        require(msg.sender == vault, "!vault");

        uint256 wantBal = IERC20Metadata(want).balanceOf(address(this));

        if (wantBal < _amount) {
            IRewardPool(rewardPool).withdraw(_amount - wantBal);
            wantBal = IERC20Metadata(want).balanceOf(address(this));
        }

        if (wantBal > _amount) {
            wantBal = _amount;
        }

        IERC20Metadata(want).safeTransfer(vault, wantBal);
        emit Withdraw(balanceOf());
    }

    /// @notice Hook called by the vault before shares are calculated on a deposit
    function beforeDeposit() external {
        if (harvestOnDeposit) {
            require(msg.sender == vault, "!vault");
            _harvest(tx.origin);
        }
    }

    /// @notice Harvest rewards and collect a call fee reward
    function harvest() external {
        _harvest(tx.origin);
    }

    /// @notice Harvest rewards and send the call fee reward to a specified recipient
    /// @param _callFeeRecipient Recipient of the call fee reward
    function harvest(address _callFeeRecipient) external {
        _harvest(_callFeeRecipient);
    }

    /// @dev Harvest rewards, charge fees and compound back into more want
    /// @param _callFeeRecipient Recipient of the call fee reward 
    function _harvest(address _callFeeRecipient) internal whenNotPaused {
        IRewardPool(rewardPool).getReward();
        _swapToNative();
        if (IERC20Metadata(native).balanceOf(address(this)) > 0) {
            if (!IBeefyVaultConcLiq(want).isCalm()) revert NotCalm();
            _chargeFees(_callFeeRecipient);
            _swapToWant();
            uint256 wantHarvested = balanceOfWant();
            (uint256 locked,) = lockedProfit();
            totalLocked = wantHarvested + locked;
            deposit();

            lastHarvest = block.timestamp;
            emit StratHarvest(msg.sender, wantHarvested, balanceOf());
        }
    }

    /// @dev Swap any extra rewards into native
    function _swapToNative() internal {
        for (uint i; i < rewards.length; ++i) {
            address reward = rewards[i];
            uint256 rewardBal = IERC20Metadata(reward).balanceOf(address(this));
            if (rewardBal > 0) IBeefySwapper(unirouter).swap(reward, native, rewardBal);
        }
    }

    /// @dev Charge performance fees and send to recipients
    /// @param _callFeeRecipient Recipient of the call fee reward 
    function _chargeFees(address _callFeeRecipient) internal {
        IFeeConfig.FeeCategory memory fees = getFees();
        uint256 nativeBal = IERC20Metadata(native).balanceOf(address(this)) * fees.total / DIVISOR;

        uint256 callFeeAmount = nativeBal * fees.call / DIVISOR;
        IERC20Metadata(native).safeTransfer(_callFeeRecipient, callFeeAmount);

        uint256 strategistFeeAmount = nativeBal * fees.strategist / DIVISOR;
        IERC20Metadata(native).safeTransfer(strategist, strategistFeeAmount);

        uint256 beefyFeeAmount = nativeBal - callFeeAmount - strategistFeeAmount;
        IERC20Metadata(native).safeTransfer(beefyFeeRecipient(), beefyFeeAmount);

        emit ChargedFees(callFeeAmount, beefyFeeAmount, strategistFeeAmount);
    }

    /// @dev Swap all native into want
    function _swapToWant() internal {
        uint256 nativeBal = IERC20Metadata(native).balanceOf(address(this));
        uint256 price = IStrategyConcLiq(IBeefyVaultConcLiq(want).strategy()).price();
        (uint bal0, uint bal1) = IBeefyVaultConcLiq(want).balances();
        uint256 PRECISION = 1e36;
        uint256 bal0InBal1 = (bal0 * price) / PRECISION;

        uint256 balRequired;
        uint256 nativeToLp0Amount;
        uint256 nativeToLp1Amount;
        uint256 nativeToTokenAmount;
        address tokenRequired;

        // check which side we need to fill more
        if (bal1 > bal0InBal1) {
            tokenRequired = token0;
            balRequired = (bal1 - bal0InBal1) * PRECISION / price;
        } else {
            tokenRequired = token1;
            balRequired = bal0InBal1 - bal1;
        }

        // calculate how much native we should swap from to fill the one side
        if (tokenRequired != native) {
            nativeToTokenAmount = IBeefySwapper(unirouter).getAmountOut(
                tokenRequired, native, balRequired
            );
        } else {
            nativeToTokenAmount = balRequired;
        }

        // only swap up to the amount of native we have
        if (nativeToTokenAmount > nativeBal) nativeToTokenAmount = nativeBal;

        // add in the amount to fill the one side
        if (tokenRequired == token0) {
            nativeToLp0Amount = nativeToTokenAmount;
        } else {
            nativeToLp1Amount = nativeToTokenAmount;
        }

        // whatever native is leftover after filling one side, do the half-half swap calculation
        nativeBal -= nativeToTokenAmount;
        if (nativeBal > 0) {
            uint256 halfNative = nativeBal / 2;
            nativeToLp0Amount += (nativeBal - halfNative);
            nativeToLp1Amount += halfNative;
        }
        
        // do swaps
        if (nativeToLp0Amount > 0 && token0 != native) 
            IBeefySwapper(unirouter).swap(native, token0, nativeToLp0Amount);
        if (nativeToLp1Amount > 0 && token1 != native) 
            IBeefySwapper(unirouter).swap(native, token1, nativeToLp1Amount);

        uint256 amount0 = IERC20Metadata(token0).balanceOf(address(this));
        uint256 amount1 = IERC20Metadata(token1).balanceOf(address(this));
        (uint256 shares,,,,) = IBeefyVaultConcLiq(want).previewDeposit(amount0, amount1);

        // deposit to want, we should be protected by isCalm() and slippage
        IBeefyVaultConcLiq(want).deposit(amount0, amount1, shares * slippage / DIVISOR);
    }

    /// @notice Total want controlled by the strategy in the underlying platform and this contract
    /// @return balance Total want controlled by the strategy 
    function balanceOf() public view returns (uint256 balance) {
        (uint256 locked,) = lockedProfit();
        
        if (harvestOnDeposit) balance = balanceOfWant() + balanceOfPool();
        else balance = balanceOfWant() + balanceOfPool() - locked;
    }

    /// @notice Amount of want held on this contract
    /// @return balanceHeld Amount of want held
    function balanceOfWant() public view returns (uint256 balanceHeld) {
        balanceHeld = IERC20Metadata(want).balanceOf(address(this));
    }

    /// @notice Amount of want controlled by the strategy in the underlying platform
    /// @return balanceInvested Amount of want in the underlying platform
    function balanceOfPool() public view returns (uint256 balanceInvested) {
        balanceInvested = IERC20Metadata(rewardPool).balanceOf(address(this));
    }

    /// @notice Amount of locked profit degrading over time
    /// @return left Amount of locked profit still remaining
    function lockedProfit() public override view returns (uint256 left, uint256 unusedVariable) {
        uint256 elapsed = block.timestamp - lastHarvest;
        uint256 remaining = elapsed < duration ? duration - elapsed : 0;
        left = totalLocked * remaining / duration;
        return (left, unusedVariable);
    }

    /// @notice Unclaimed reward amount from the underlying platform
    /// @return unclaimedReward Amount of reward left unclaimed
    function rewardsAvailable() public view returns (uint256 unclaimedReward) {
        unclaimedReward = IRewardPool(rewardPool).earned(address(this), rewards[0]);
    }

    /// @notice Estimated call fee reward for calling harvest
    /// @return callFee Amount of native reward a harvest caller could claim
    function callReward() public view returns (uint256 callFee) {
        IFeeConfig.FeeCategory memory fees = getFees();
        callFee = rewardsAvailable() * fees.total / DIVISOR * fees.call / DIVISOR;
    }

    /// @notice Manager function to toggle on harvesting on deposits
    /// @param _harvestOnDeposit Turn harvesting on deposit on or off
    function setHarvestOnDeposit(bool _harvestOnDeposit) external onlyManager {
        harvestOnDeposit = _harvestOnDeposit;
    }

    /// @notice Called by the vault as part of strategy migration, all funds are sent to the vault
    function retireStrat() external {
        require(msg.sender == vault, "!vault");

        IRewardPool(rewardPool).withdraw(balanceOfPool());

        uint256 wantBal = IERC20Metadata(want).balanceOf(address(this));
        IERC20Metadata(want).transfer(vault, wantBal);
    }

    /// @notice Pauses deposits and withdraws all funds from the underlying platform
    function panic() public onlyManager {
        pause();
        IRewardPool(rewardPool).withdraw(balanceOfPool());
    }

    /// @notice Pauses deposits but leaves funds still invested
    function pause() public onlyManager {
        _pause();

        _removeAllowances();
    }

    /// @notice Unpauses deposits and reinvests any idle funds
    function unpause() external onlyManager {
        _unpause();

        _giveAllowances();

        deposit();
    }

    /// @notice Set the duration for the degradation of the locked profit
    /// @param _duration Duration for the degradation of the locked profit
    function setDuration(uint256 _duration) external onlyOwner {
        duration = _duration;
        emit SetDuration(_duration);
    }

    /// @notice Add a new reward to the array
    /// @param _reward New reward
    function setReward(address _reward) external onlyOwner {
        if (_reward == want || _reward == native || _reward == rewardPool) {
            revert RewardNotAllowed(_reward);
        }
        if (rewards.length > 0) {
            if (_reward == rewards[index[_reward]]) revert RewardAlreadySet(_reward);
        }
        index[_reward] = rewards.length;
        rewards.push(_reward);
        IERC20Metadata(_reward).forceApprove(unirouter, type(uint).max);
        emit SetReward(_reward);
    }

    /// @notice Remove a reward from the array
    /// @param _reward Removed reward
    function removeReward(address _reward) external onlyManager {
        if (_reward != rewards[index[_reward]]) revert RewardNotFound(_reward);
        address endReward = rewards[rewards.length - 1];
        uint256 replacedIndex = index[_reward];
        index[endReward] = replacedIndex;
        rewards[replacedIndex] = endReward;
        rewards.pop();
        IERC20Metadata(_reward).forceApprove(unirouter, 0);
        emit RemoveReward(_reward);
    }

    /// @notice Set slippage when adding liquidity
    /// @param _slippage Slippage amount
    function setSlippage(uint256 _slippage) external onlyManager {
        if (_slippage > 1 ether) revert SlippageOutOfBounds(_slippage);
        slippage = _slippage;
        emit SetSlippage(_slippage);
    }

    /// @dev Give out allowances to third party contracts
    function _giveAllowances() internal {
        IERC20Metadata(want).forceApprove(rewardPool, type(uint).max);
        IERC20Metadata(native).forceApprove(unirouter, type(uint).max);
        IERC20Metadata(token0).forceApprove(want, 0);
        IERC20Metadata(token0).forceApprove(want, type(uint).max);
        IERC20Metadata(token1).forceApprove(want, 0);
        IERC20Metadata(token1).forceApprove(want, type(uint).max);
        for (uint i; i < rewards.length; ++i) {
            IERC20Metadata(rewards[i]).forceApprove(unirouter, 0);
            IERC20Metadata(rewards[i]).forceApprove(unirouter, type(uint).max);
        }
    }

    /// @dev Revoke allowances from third party contracts
    function _removeAllowances() internal {
        IERC20Metadata(want).forceApprove(rewardPool, 0);
        IERC20Metadata(native).forceApprove(unirouter, 0);
        IERC20Metadata(token0).forceApprove(want, 0);
        IERC20Metadata(token1).forceApprove(want, 0);

        for (uint i; i < rewards.length; ++i) {
            IERC20Metadata(rewards[i]).forceApprove(unirouter, 0);
        }
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Metadata.sol)

pragma solidity ^0.8.20;

import {IERC20} from "../IERC20.sol";

/**
 * @dev Interface for the optional metadata functions from the ERC20 standard.
 */
interface IERC20Metadata is IERC20 {
    /**
     * @dev Returns the name of the token.
     */
    function name() external view returns (string memory);

    /**
     * @dev Returns the symbol of the token.
     */
    function symbol() external view returns (string memory);

    /**
     * @dev Returns the decimals places of the token.
     */
    function decimals() external view returns (uint8);
}

// 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);
}

// 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);
}

// 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;
    }
}

// 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();
        }
    }
}

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

pragma solidity ^0.8.0;

import "../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.
 *
 * 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 OwnableUpgradeable is Initializable, ContextUpgradeable {
    address private _owner;

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

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

    function __Ownable_init_unchained() internal onlyInitializing {
        _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);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (proxy/utils/Initializable.sol)

pragma solidity ^0.8.2;

import "../../utils/AddressUpgradeable.sol";

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (security/Pausable.sol)

pragma solidity ^0.8.0;

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

/**
 * @dev Contract module which allows children to implement an emergency stop
 * mechanism that can be triggered by an authorized account.
 *
 * This module is used through inheritance. It will make available the
 * modifiers `whenNotPaused` and `whenPaused`, which can be applied to
 * the functions of your contract. Note that they will not be pausable by
 * simply including this module, only once the modifiers are put in place.
 */
abstract contract PausableUpgradeable is Initializable, ContextUpgradeable {
    /**
     * @dev Emitted when the pause is triggered by `account`.
     */
    event Paused(address account);

    /**
     * @dev Emitted when the pause is lifted by `account`.
     */
    event Unpaused(address account);

    bool private _paused;

    /**
     * @dev Initializes the contract in unpaused state.
     */
    function __Pausable_init() internal onlyInitializing {
        __Pausable_init_unchained();
    }

    function __Pausable_init_unchained() internal onlyInitializing {
        _paused = false;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is not paused.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    modifier whenNotPaused() {
        _requireNotPaused();
        _;
    }

    /**
     * @dev Modifier to make a function callable only when the contract is paused.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    modifier whenPaused() {
        _requirePaused();
        _;
    }

    /**
     * @dev Returns true if the contract is paused, and false otherwise.
     */
    function paused() public view virtual returns (bool) {
        return _paused;
    }

    /**
     * @dev Throws if the contract is paused.
     */
    function _requireNotPaused() internal view virtual {
        require(!paused(), "Pausable: paused");
    }

    /**
     * @dev Throws if the contract is not paused.
     */
    function _requirePaused() internal view virtual {
        require(paused(), "Pausable: not paused");
    }

    /**
     * @dev Triggers stopped state.
     *
     * Requirements:
     *
     * - The contract must not be paused.
     */
    function _pause() internal virtual whenNotPaused {
        _paused = true;
        emit Paused(_msgSender());
    }

    /**
     * @dev Returns to normal state.
     *
     * Requirements:
     *
     * - The contract must be paused.
     */
    function _unpause() internal virtual whenPaused {
        _paused = false;
        emit Unpaused(_msgSender());
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

pragma solidity ^0.8.1;

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

        return account.code.length > 0;
    }

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

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

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

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

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

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

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

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

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

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

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

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

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

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (utils/Context.sol)

pragma solidity ^0.8.0;
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;
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[50] private __gap;
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

interface IBeefySwapper {
    function swap(
        address fromToken,
        address toToken,
        uint256 amountIn
    ) external returns (uint256 amountOut);

    function swap(
        address fromToken,
        address toToken,
        uint256 amountIn,
        uint256 minAmountOut
    ) external returns (uint256 amountOut);

    function getAmountOut(
        address _fromToken,
        address _toToken,
        uint256 _amountIn
    ) external view returns (uint256 amountOut);

    struct SwapInfo {
        address router;
        bytes data;
        uint256 amountIndex;
        uint256 minIndex;
        int8 minAmountSign;
    }
}

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

interface IBeefyVaultConcLiq {
    function previewDeposit(uint256 _amount0, uint256 _amount1) external view returns (uint256 shares, uint256 amount0, uint256 amount1, uint256 fee0, uint256 fee1);
    function previewWithdraw(uint256 shares) external view returns (uint256 amount0, uint256 amount1);
    function strategy() external view returns (address);
    function totalSupply() external view returns (uint256);
    function wants() external view returns (address, address);
    function balances() external view returns (uint256, uint256);
    function deposit(uint256 amount0, uint256 amount1, uint256 minShares) external;
    function isCalm() external view returns (bool);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IFeeConfig {
    struct FeeCategory {
        uint256 total;
        uint256 beefy;
        uint256 call;
        uint256 strategist;
        string label;
        bool active;
    }
    struct AllFees {
        FeeCategory performance;
        uint256 deposit;
        uint256 withdraw;
    }
    function getFees(address strategy) external view returns (FeeCategory memory);
    function stratFeeId(address strategy) external view returns (uint256);
    function setStratFeeId(uint256 feeId) external;
}

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

interface IRewardPool {
    function stake(uint256 amount) external;
    function withdraw(uint256 amount) external;
    function getReward() external;
    function notifyRewardAmount(address token, uint256 reward, uint256 duration) external;
    function earned(address user, address token) external view returns (uint256);
}

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

interface IStrategyConcLiq {
    function balances() external view returns (uint256, uint256);
    function beforeAction() external;
    function deposit() external;
    function withdraw(uint256 _amount0, uint256 _amount1) external;
    function pool() external view returns (address);
    function lpToken0() external view returns (address);
    function lpToken1() external view returns (address);
    function isCalm() external view returns (bool);
    function swapFee() external view returns (uint256);
    
    /// @notice The current price of the pool in token1, encoded with 36 decimals.
    /// @return _price The current price of the pool in token1.
    function price() external view returns (uint256 _price);

}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IStrategyFactory {
    function native() external view returns (address);
    function globalPause() external view returns (bool);
    function keeper() external view returns (address);
    function beefyFeeRecipient() external view returns (address);
    function beefyFeeConfig() external view returns (address);
    function rebalancers(address) external view returns (bool);
}

// SPDX-License-Identifier: MIT

pragma solidity ^0.8.23;

import {OwnableUpgradeable} from "@openzeppelin/contracts-upgradeable/access/OwnableUpgradeable.sol";
import {PausableUpgradeable} from "@openzeppelin/contracts-upgradeable/security/PausableUpgradeable.sol";
import {IFeeConfig} from "../interfaces/beefy/IFeeConfig.sol";
import {IStrategyFactory} from "../interfaces/beefy/IStrategyFactory.sol";

contract StratFeeManagerInitializable is OwnableUpgradeable, PausableUpgradeable {
    struct CommonAddresses {
        address vault;
        address unirouter;
        address strategist;
        address factory;
    }

    /// @notice The native address of the chain
    address public native;

    /// @notice The address of the vault
    address public vault;

    /// @notice The address of the unirouter
    address public unirouter;

    /// @notice The address of the strategist
    address public strategist;

    /// @notice The address of the strategy factory
    IStrategyFactory public factory;

    /// @notice The total amount of token0 locked in the vault
    uint256 public totalLocked0;

    /// @notice The total amount of token1 locked in the vault
    uint256 public totalLocked1;

    /// @notice The last time the strat harvested
    uint256 public lastHarvest;

    /// @notice The last time we adjusted the position
    uint256 public lastPositionAdjusment;

    /// @notice The duration of the locked rewards
    uint256 constant DURATION = 1 hours;

    /// @notice The divisor used to calculate the fee
    uint256 constant DIVISOR = 1 ether;


    // Events
    event SetStratFeeId(uint256 feeId);
    event SetUnirouter(address unirouter);
    event SetStrategist(address strategist);

    // Errors
    error NotManager();
    error NotStrategist();
    error OverLimit();
    error StrategyPaused();

    /**
     * @notice Initialize the Strategy Fee Manager inherited contract with the common addresses
     * @param _commonAddresses The common addresses of the vault, unirouter, keeper, strategist, beefyFeeRecipient and beefyFeeConfig
     */
    function __StratFeeManager_init(CommonAddresses calldata _commonAddresses) internal onlyInitializing {
        __Ownable_init();
        __Pausable_init();
        vault = _commonAddresses.vault;
        unirouter = _commonAddresses.unirouter;
        strategist = _commonAddresses.strategist;
        factory = IStrategyFactory(_commonAddresses.factory);
        native = factory.native();
    }

    /**
     * @notice function that throws if the strategy is paused
     */
    function _whenStrategyNotPaused() internal view {
        if (paused() || factory.globalPause()) revert StrategyPaused();
    }

    /**
     * @notice function that returns true if the strategy is paused
     */
    function _isPaused() internal view returns (bool) {
        return paused() || factory.globalPause();
    }

    /** 
     * @notice Modifier that throws if called by any account other than the manager or the owner
    */
    modifier onlyManager() {
        if (msg.sender != owner() && msg.sender != keeper()) revert NotManager();
        _;
    }

    /// @notice The address of the keeper, set on the factory. 
    function keeper() public view returns (address) {
        return factory.keeper();
    }

    /// @notice The address of the beefy fee recipient, set on the factory.
    function beefyFeeRecipient() public view returns (address) {
        return factory.beefyFeeRecipient();
    }

    /// @notice The address of the beefy fee config, set on the factory.
    function beefyFeeConfig() public view returns (IFeeConfig) {
        return IFeeConfig(factory.beefyFeeConfig());
    }

    /**
     * @notice get the fees breakdown from the fee config for this contract
     * @return IFeeConfig.FeeCategory The fees breakdown
     */
    function getFees() internal view returns (IFeeConfig.FeeCategory memory) {
        return beefyFeeConfig().getFees(address(this));
    }

    /**
     * @notice get all the fees from the fee config for this contract
     * @return IFeeConfig.AllFees The fees
     */
    function getAllFees() external view returns (IFeeConfig.AllFees memory) {
        return IFeeConfig.AllFees(getFees(), depositFee(), withdrawFee());
    }

    /**
     * @notice get the strat fee id from the fee config
     * @return uint256 The strat fee id
     */
    function getStratFeeId() external view returns (uint256) {
        return beefyFeeConfig().stratFeeId(address(this));
    }

    /**
     * @notice set the strat fee id in the fee config
     * @param _feeId The new strat fee id
     */
    function setStratFeeId(uint256 _feeId) external onlyManager {
        beefyFeeConfig().setStratFeeId(_feeId);
        emit SetStratFeeId(_feeId);
    }

    /**
     * @notice set the unirouter address
     * @param _unirouter The new unirouter address
     */
    function setUnirouter(address _unirouter) external virtual onlyOwner {
        unirouter = _unirouter;
        emit SetUnirouter(_unirouter);
    }

    /**
     * @notice set the strategist address
     * @param _strategist The new strategist address
     */
    function setStrategist(address _strategist) external {
        if (msg.sender != strategist) revert NotStrategist();
        strategist = _strategist;
        emit SetStrategist(_strategist);
    }

    /**
     * @notice The deposit fee variable will alwasy be 0. This is used by the UI. 
     * @return uint256 The deposit fee
     */
    function depositFee() public virtual view returns (uint256) {
        return 0;
    }

    /**
     * @notice The withdraw fee variable will alwasy be 0. This is used by the UI. 
     * @return uint256 The withdraw fee
     */
    function withdrawFee() public virtual view returns (uint256) {
        return 0;
    }

    /**
     * @notice The locked profit is the amount of token0 and token1 that is locked in the vault, this can be overriden by the strategy contract.
     * @return locked0 The amount of token0 locked
     * @return locked1 The amount of token1 locked
     */
    function lockedProfit() public virtual view returns (uint256 locked0, uint256 locked1) {
        uint256 elapsed = block.timestamp - lastHarvest;
        uint256 remaining = elapsed < DURATION ? DURATION - elapsed : 0;
        return (totalLocked0 * remaining / DURATION, totalLocked1 * remaining / DURATION);
    }

    /**
     * @dev This empty reserved space is put in place to allow future versions to add new
     * variables without shifting down storage in the inheritance chain.
     * See https://docs.openzeppelin.com/contracts/4.x/upgradeable#storage_gaps
     */
    uint256[49] private __gap;
}

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

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StratFeeManagerInitializable.CommonAddresses","name":"_commonAddresses","type":"tuple"}],"name":"initialize","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"keeper","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastHarvest","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lastPositionAdjusment","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"lockedProfit","outputs":[{"internalType":"uint256","name":"left","type":"uint256"},{"internalType":"uint256","name":"unusedVariable","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"native","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"owner","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"panic","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"pause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"paused","outputs":[{"internalType":"bool","name":"","type":"bool"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"_reward","type":"address"}],"name":"removeReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"renounceOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"retireStrat","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"rewardPool","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"","type":"uint256"}],"name":"rewards","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"rewardsAvailable","outputs":[{"internalType":"uint256","name":"unclaimedReward","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_duration","type":"uint256"}],"name":"setDuration","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"bool","name":"_harvestOnDeposit","type":"bool"}],"name":"setHarvestOnDeposit","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_reward","type":"address"}],"name":"setReward","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_slippage","type":"uint256"}],"name":"setSlippage","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"uint256","name":"_feeId","type":"uint256"}],"name":"setStratFeeId","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_strategist","type":"address"}],"name":"setStrategist","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[{"internalType":"address","name":"_unirouter","type":"address"}],"name":"setUnirouter","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"slippage","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"strategist","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token0","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"token1","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalLocked","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalLocked0","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"totalLocked1","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"address","name":"newOwner","type":"address"}],"name":"transferOwnership","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"unirouter","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"unpause","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"vault","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[],"name":"want","outputs":[{"internalType":"address","name":"","type":"address"}],"stateMutability":"view","type":"function"},{"inputs":[{"internalType":"uint256","name":"_amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"},{"inputs":[],"name":"withdrawFee","outputs":[{"internalType":"uint256","name":"","type":"uint256"}],"stateMutability":"view","type":"function"}]