SparkEthereumLeveragedstETH

{{
  "language": "Solidity",
  "sources": {
    "@openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol": {
      "content": "// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.0.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.20;

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

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

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

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

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

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

pragma solidity ^0.8.20;

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

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

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

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

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

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

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

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

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

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

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

    /**
     * @dev Reverts with returndata if present. Otherwise reverts with {FailedInnerCall}.
     */
    function _revert(bytes memory returndata) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert FailedInnerCall();
        }
    }
}
"
    },
    "@shift-defi/core/contracts/defii/execution/Logic.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.20;

abstract contract Logic {
    error NotImplemented();

    function claimRewards(address recipient) external payable virtual {
        revert NotImplemented();
    }

    function emergencyExit() external payable virtual {
        revert NotImplemented();
    }

    function withdrawLiquidity(
        address recipient,
        uint256 amount
    ) external payable virtual {
        revert NotImplemented();
    }

    function enter() external payable virtual;

    function exit(uint256 liquidity) external payable virtual;

    function accountLiquidity(
        address account
    ) external view virtual returns (uint256);
}
"
    },
    "@shift-defi/core/contracts/libraries/Constants.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.20;

library Constants {
    uint256 constant BPS = 1e4;
}
"
    },
    "@shitam/defi-product-templates/contracts/Errors.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.24;

error NotImplemented();
error EnterFailed();
error ExitFailed();
"
    },
    "@shitam/defi-product-templates/contracts/SelfManagedLogic.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.24;

import {Logic} from "@shift-defi/core/contracts/defii/execution/Logic.sol";
import {UniswapV3Callbacks} from "./UniswapV3Callbacks.sol";

abstract contract SelfManagedLogic is Logic, UniswapV3Callbacks {
    error WrongBuildingBlockId(uint256);

    function enterWithParams(bytes memory params) external payable virtual {
        revert NotImplemented();
    }

    function exitBuildingBlock(
        uint256 buildingBlockId
    ) external payable virtual;

    function allocatedLiquidity(
        address account
    ) external view virtual returns (uint256);

    function exitWithRepay(address lending) external virtual {
        revert NotImplemented();
    }
}
"
    },
    "@shitam/defi-product-templates/contracts/UniswapV3Callbacks.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.24;

import {NotImplemented} from "./Errors.sol";

abstract contract UniswapV3Callbacks {
    function uniswapV3SwapCallback(
        int256 amount0Delta,
        int256 amount1Delta,
        bytes calldata data
    ) external virtual {
        revert NotImplemented();
    }
    function uniswapV3MintCallback(
        uint256 amount0Owed,
        uint256 amount1Owed,
        bytes calldata data
    ) external virtual {
        revert NotImplemented();
    }
    function uniswapV3FlashCallback(
        uint256 fee0,
        uint256 fee1,
        bytes calldata data
    ) external virtual {
        revert NotImplemented();
    }
}
"
    },
    "contracts/constants/ethereum.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.9;

address constant USDC = 0xA0b86991c6218b36c1d19D4a2e9Eb0cE3606eB48;
address constant USDT = 0xdAC17F958D2ee523a2206206994597C13D831ec7;
address constant DAI = 0x6B175474E89094C44Da98b954EedeAC495271d0F;
address constant wstETH = 0x7f39C581F595B53c5cb19bD0b3f8dA6c935E2Ca0;
address constant wETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
address constant crvUSD = 0xf939E0A03FB07F59A73314E73794Be0E57ac1b4E;
address constant XAI = 0xd7C9F0e536dC865Ae858b0C0453Fe76D13c3bEAc;
address constant FRAX = 0x853d955aCEf822Db058eb8505911ED77F175b99e;
address constant eUSD = 0xA0d69E286B938e21CBf7E51D71F6A4c8918f482F;
address constant GHO = 0x40D16FC0246aD3160Ccc09B8D0D3A2cD28aE6C2f;
address constant stETH = 0xae7ab96520DE3A18E5e111B5EaAb095312D7fE84;
address constant fxUSD = 0x085780639CC2cACd35E474e71f4d000e2405d8f6;
address constant btcUSD = 0x9D11ab23d33aD026C466CE3c124928fDb69Ba20E;
address constant wBTC = 0x2260FAC5E5542a773Aa44fBCfeDf7C193bc2C599;
address constant CRV = 0xD533a949740bb3306d119CC777fa900bA034cd52;
address constant CVX = 0x4e3FBD56CD56c3e72c1403e103b45Db9da5B9D2B;
address constant MIM = 0x99D8a9C45b2ecA8864373A26D1459e3Dff1e17F3;
address constant sDAI = 0x83F20F44975D03b1b09e64809B757c47f942BEeA;
address constant scrvUSD = 0x0655977FEb2f289A4aB78af67BAB0d17aAb84367;
address constant USDe = 0x4c9EDD5852cd905f086C759E8383e09bff1E68B3;
address constant sUSDe = 0x9D39A5DE30e57443BfF2A8307A4256c8797A3497;
address constant ACX = 0x44108f0223A3C3028F5Fe7AEC7f9bb2E66beF82F;
address constant ETHPlus = 0xE72B141DF173b999AE7c1aDcbF60Cc9833Ce56a8;
address constant rETH = 0xae78736Cd615f374D3085123A210448E74Fc6393;
address constant ETHx = 0xA35b1B31Ce002FBF2058D22F30f95D405200A15b;
address constant sfrxETH = 0xac3E018457B222d93114458476f3E3416Abbe38F;
address constant frxETH = 0x5E8422345238F34275888049021821E8E08CAa1f;
address constant rlUSD = 0x8292Bb45bf1Ee4d140127049757C2E0fF06317eD;
address constant cUSDO = 0xaD55aebc9b8c03FC43cd9f62260391c13c23e7c0;
address constant unstETH = 0x889edC2eDab5f40e902b864aD4d7AdE8E412F9B1;"
    },
    "contracts/interfaces/ILending.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.9;

interface ILending {
    function repay(address[] calldata tokens) external;
    function currentDebt(address token) external view returns (uint256);
    function totalDebt() external view returns (uint256);
}
"
    },
    "contracts/logic/ethereum/SparkEthereumLeveragedstETH.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0

pragma solidity ^0.8.9;

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

import {AaveV3LikeEthereumLeveragedstETHV2} from "../templates/AaveV3LikeEthereumLeveragedstETHV2.sol";
import {stETH, wETH, wstETH} from "../../constants/ethereum.sol";

contract SparkEthereumLeveragedstETH is AaveV3LikeEthereumLeveragedstETHV2 {

    constructor () AaveV3LikeEthereumLeveragedstETHV2 (
        AaveV3LikeEthereumLeveragedstETHV2.InitialParams({
            pool_: 0xC13e21B648A5Ee794902342038FF3aDAB66BE987,
            collateral_: 0x12B54025C112Aa61fAce2CDB7118740875A566E9,
            debt_: 0x2e7576042566f8D6990e07A1B61Ad1efd86Ae70d,
            borrow_ltv_: 9195,
            borrow_ltv_denominator_: 10000,
            withdraw_ltv_: 9275,
            withdraw_ltv_denominator_: 10000,
            min_amount_to_withdraw_: 10000,
            loops_count_: 30,
            max_ltv_borrow_: 9150,
            max_ltv_withdraw_: 9277
        })
    ) {}
}"
    },
    "contracts/logic/templates/AaveV3LikeEthereumLeveragedstETHV2.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0

pragma solidity ^0.8.9;

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

import {SelfManagedLogicV4WithUtils} from "../templates/SelfManagedLogicV4WithUtils.sol";
import {stETH, wETH, wstETH, unstETH} from "../../constants/ethereum.sol";

/// @notice AaveV3LikeEthereumLeveragedstETHV2 differs from AaveV3LikeEthereumLeveragedstETH in:
/// @dev 1. It has limited loops count to enter
/// @dev 2. It has max_ltv_borrow and max_ltv_withdraw to check the current LTV after enter and exit
contract AaveV3LikeEthereumLeveragedstETHV2 is SelfManagedLogicV4WithUtils {
    struct InitialParams {
        address pool_;
        address collateral_;
        address debt_;
        uint256 borrow_ltv_;
        uint256 borrow_ltv_denominator_;
        uint256 withdraw_ltv_;
        uint256 withdraw_ltv_denominator_;
        uint256 min_amount_to_withdraw_;
        uint256 loops_count_;
        uint256 max_ltv_borrow_;
        uint256 max_ltv_withdraw_;
    }

    address public immutable pool;
    address public immutable collateral;
    address public immutable debt;

    uint256 public immutable borrow_ltv;
    uint256 public immutable borrow_ltv_denominator;
    uint256 public immutable withdraw_ltv;
    uint256 public immutable withdraw_ltv_denominator;
    uint256 public immutable min_amount_to_withdraw;
    uint256 public immutable loops_count;
    uint256 public immutable max_ltv_borrow;
    uint256 public immutable max_ltv_withdraw;

    constructor (
        InitialParams memory params
    ) {
        pool = params.pool_;
        collateral = params.collateral_;
        debt = params.debt_;
        borrow_ltv = params.borrow_ltv_;
        borrow_ltv_denominator = params.borrow_ltv_denominator_;
        withdraw_ltv = params.withdraw_ltv_;
        withdraw_ltv_denominator = params.withdraw_ltv_denominator_;
        min_amount_to_withdraw = params.min_amount_to_withdraw_;
        loops_count = params.loops_count_;
        max_ltv_borrow = params.max_ltv_borrow_;
        max_ltv_withdraw = params.max_ltv_withdraw_;
    }

    function enter() external payable override {
        if (address(this).balance > 0) {
            IstETH(stETH).submit{value:address(this).balance}(address(0));
        }
        uint256 stETHBalance = IstETH(stETH).balanceOf(address(this));
        if (stETHBalance > 0) {
            _approveIfNeeded(stETH, wstETH);
            IwstETH(wstETH).wrap(stETHBalance);
        }

        uint256 wstETHBalanceInit = IwstETH(wstETH).balanceOf(address(this));
        if (wstETHBalanceInit == 0) return;

        _approveIfNeeded(wstETH, pool);

        IPool(pool).setUserEMode(1);

        IPool(pool).supply(
            wstETH,
            wstETHBalanceInit,
            address(this),
            0
        );

        for(uint256 i = 0; i < loops_count; i++) {
            uint256 ethToBorrow = IwstETH(wstETH).getStETHByWstETH(wstETHBalanceInit) * borrow_ltv / borrow_ltv_denominator;
            IPool(pool).borrow(
                wETH,
                ethToBorrow,
                uint256(IPool.InterestRateMode.VARIABLE),
                0,
                address(this)
            );
            IwETH(wETH).withdraw(IwETH(wETH).balanceOf(address(this)));
            IstETH(stETH).submit{value:address(this).balance}(address(0));
            IwstETH(wstETH).wrap(IstETH(stETH).balanceOf(address(this)));
            wstETHBalanceInit = IwstETH(wstETH).balanceOf(address(this));
            IPool(pool).supply(
                wstETH,
                wstETHBalanceInit,
                address(this),
                0
            );
        }

        uint256 currentLTV = _calcLTV(borrow_ltv_denominator);
        require(currentLTV < max_ltv_borrow, "current ltv is greater than max ltv");
    }

    function getRequestId() public view returns (uint256) {
        uint256[] memory data = IunstETH(unstETH).getWithdrawalRequests(address(this));
        if (data.length > 0) {
            return data[data.length-1];
        }
        return 0;
    }

    function _unstakeIfPossible() internal {
        uint256 requestId = getRequestId();

        if (requestId != 0) {
            if (IunstETH(unstETH).getLastFinalizedRequestId() >= requestId) {
                IunstETH(unstETH).claimWithdrawal(requestId);
            } else {
                revert("Not ready to claim eth");
            }
        }
    }

    function exit(uint256 liquidity) public payable override {
        _unstakeIfPossible();

        _repay();

        uint256 supplyDelta = IwstETH(wstETH).getWstETHByStETH(
            (withdraw_ltv * IwstETH(wstETH).getStETHByWstETH(IERC20(collateral).balanceOf(address(this))) - withdraw_ltv_denominator * IERC20(debt).balanceOf(address(this))) / withdraw_ltv
        );
        IPool(pool).withdraw(wstETH, supplyDelta, address(this));

        IwstETH(wstETH).unwrap(IwstETH(wstETH).balanceOf(address(this)));

        uint256[] memory param = new uint256[](1);
        param[0] = IERC20(stETH).balanceOf(address(this));

        _approveIfNeeded(stETH, unstETH);
        IunstETH(unstETH).requestWithdrawals(
            param,
            address(this)
        );

        uint256 currentLTV = _calcLTV(withdraw_ltv_denominator);
        require(currentLTV < max_ltv_withdraw, "current ltv is greater than max ltv");
    }

    function _repay() internal {
        if (address(this).balance > min_amount_to_withdraw) {
            IwETH(wETH).deposit{value: address(this).balance}();
        }

        uint256 amount = IwETH(wETH).balanceOf(address(this));

        if (amount > min_amount_to_withdraw) {
            uint256 paybackAmount = IERC20(debt).balanceOf(address(this));
            _approveIfNeeded(wETH, pool);

            if (amount < paybackAmount) {
                paybackAmount = amount;
            }
            IPool(pool).repay(
                wETH,
                paybackAmount,
                uint256(IPool.InterestRateMode.VARIABLE),
                address(this)
            );
        }
    }

    function claimRewards(address recipient) external payable override {}

    function exitBuildingBlock(
        uint256 buildingBlockId
    ) external payable override {}

    function accountLiquidity(
        address account
    ) public view override returns (uint256) {
        return allocatedLiquidity(account);
    }

    function allocatedLiquidity(
        address account
    ) public view override returns (uint256) {
        return IERC20(collateral).balanceOf(account);
    }

    receive() external payable {}

    function _calcLTV(uint256 denominator) internal view returns (uint256) {
        return IERC20(debt).balanceOf(address(this)) * denominator / (IwstETH(wstETH).getStETHByWstETH(IERC20(collateral).balanceOf(address(this))));
    }
}

interface IstETH is IERC20 {
    function submit(address _referral) external payable returns (uint256);
}

interface IwstETH is IERC20 {
    function wrap(uint256 _stETHAmount) external returns (uint256);
    function unwrap(uint256 _wstETHAmount) external returns (uint256);
    function getStETHByWstETH(uint256 _wstETHAmount) external view returns (uint256);
    function getWstETHByStETH(uint256 _stETHAmount) external view returns (uint256);
}

interface IwETH is IERC20 {
    function withdraw(uint wad) external;
    function deposit() external payable;
}

interface IunstETH is IERC20 {
    function requestWithdrawals(uint256[] calldata _amounts, address _owner) external returns (uint256[] memory requestIds);
    function getLastFinalizedRequestId() external view returns (uint256);
    function claimWithdrawal(uint256 _requestId) external;
    function getWithdrawalRequests(address _owner) external view returns (uint256[] memory requestsIds);
}

interface IPool {
    enum InterestRateMode {
        NONE,
        __DEPRECATED,
        VARIABLE
    }
    function borrow(
        address asset,
        uint256 amount,
        uint256 interestRateMode,
        uint16 referralCode,
        address onBehalfOf
    ) external;
    function supply(
        address asset,
        uint256 amount,
        address onBehalfOf,
        uint16 referralCode
    ) external;
    function setUserEMode(uint8 categoryId) external;
    function repay(
        address asset,
        uint256 amount,
        uint256 interestRateMode,
        address onBehalfOf
    ) external returns (uint256);
    function withdraw(address asset, uint256 amount, address to) external returns (uint256);
}"
    },
    "contracts/logic/templates/SelfManagedLogicV2WithUtils.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.9;

import {IERC20} from "@openzeppelin/contracts/token/ERC20/IERC20.sol";
import {SafeERC20} from "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

import {SelfManagedLogic, UniswapV3Callbacks} from "@shitam/defi-product-templates/contracts/SelfManagedLogic.sol";
import {Constants} from "@shift-defi/core/contracts/libraries/Constants.sol";

import {ILending} from "../../interfaces/ILending.sol";

abstract contract SelfManagedLogicV2WithUtils is SelfManagedLogic {
    using SafeERC20 for IERC20;

    function exit(uint256) public payable override virtual;
    function allocatedLiquidity(address) public view override virtual returns(uint256);

    function _approveIfNeeded(address token, address recipient) internal {
        uint256 allowance = IERC20(token).allowance(address(this), recipient);
        if (allowance < type(uint256).max) {
            IERC20(token).forceApprove(recipient, type(uint256).max);
        }
    }

    function _transferAll(address token, address recipient) internal {
        uint256 balance = IERC20(token).balanceOf(address(this));
        if (balance > 0) {
            IERC20(token).safeTransfer(recipient, balance);
        }
    }

    function _exitWithRepay(address lending, address[] memory tokens) internal virtual {
        require(ILending(lending).totalDebt() > 0);
        if (allocatedLiquidity(address(this)) > 0) {
            exit(allocatedLiquidity(address(this)));
        }
        for (uint i = 0; i < tokens.length; i++) {
            if (IERC20(tokens[i]).balanceOf(address(this)) > 0) {
                _transferAll(tokens[i], lending);
            }
        }
        ILending(lending).repay(tokens);
    }
}
"
    },
    "contracts/logic/templates/SelfManagedLogicV4WithUtils.sol": {
      "content": "// SPDX-License-Identifier: SHIFT-1.0
pragma solidity ^0.8.9;

import {SelfManagedLogicV2WithUtils} from "./SelfManagedLogicV2WithUtils.sol";

abstract contract SelfManagedLogicV4WithUtils is SelfManagedLogicV2WithUtils {
    function rebalance(bytes calldata) external virtual {
        revert NotImplemented();
    }
}
"
    }
  },
  "settings": {
    "optimizer": {
      "enabled": true,
      "runs": 1
    },
    "evmVersion": "paris",
    "outputSelection": {
      "*": {
        "*": [
          "evm.bytecode",
          "evm.deployedBytecode",
          "devdoc",
          "userdoc",
          "metadata",
          "abi"
        ]
      }
    }
  }
}}