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// SPDX-License-Identifier: GPL-3.0
pragma solidity ^0.8.0;

/* solhint-disable var-name-mixedcase  */

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

/**
 * @title slvlUSDSilo
 * @notice The Silo allows to store lvlUSD during the stake cooldown process.
 *         Forked from Ethena's USDeSilo contract.
 */
contract slvlUSDSilo is IslvlUSDSiloDefinitions {
    address immutable _STAKING_VAULT;
    IERC20 immutable _lvlUSD;

    constructor(address stakingVault, address lvlUSD) {
        _STAKING_VAULT = stakingVault;
        _lvlUSD = IERC20(lvlUSD);
    }

    modifier onlyStakingVault() {
        if (msg.sender != _STAKING_VAULT) revert OnlyStakingVault();
        _;
    }

    function withdraw(address to, uint256 amount) external onlyStakingVault {
        _lvlUSD.transfer(to, amount);
    }
}

// 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: GPL-3.0
pragma solidity >=0.8.19;

interface IslvlUSDSiloDefinitions {
    /// @notice Error emitted when the staking vault is not the caller
    error OnlyStakingVault();
}

{
  "remappings": [
    "ds-test/=lib/ds-test/src/",
    "forge-std/=lib/forge-std/src/",
    "@openzeppelin/contracts/=lib/openzeppelin-contracts/contracts/",
    "@openzeppelin-4.9.0/contracts/=lib/openzeppelin-contracts-4.9.0/contracts/",
    "@solmate/=lib/solmate/",
    "aave-v3-core/=lib/aave-v3-core/",
    "erc4626-tests/=lib/openzeppelin-contracts-4.9.0/lib/erc4626-tests/",
    "openzeppelin-contracts-4.9.0/=lib/openzeppelin-contracts-4.9.0/",
    "openzeppelin-contracts/=lib/openzeppelin-contracts/",
    "openzeppelin/=lib/openzeppelin-contracts-4.9.0/contracts/",
    "solmate/=lib/solmate/src/"
  ],
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "metadata": {
    "useLiteralContent": false,
    "bytecodeHash": "ipfs",
    "appendCBOR": true
  },
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "evmVersion": "cancun",
  "viaIR": false,
  "libraries": {}
}

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[{"inputs":[{"internalType":"address","name":"stakingVault","type":"address"},{"internalType":"address","name":"lvlUSD","type":"address"}],"stateMutability":"nonpayable","type":"constructor"},{"inputs":[],"name":"OnlyStakingVault","type":"error"},{"inputs":[{"internalType":"address","name":"to","type":"address"},{"internalType":"uint256","name":"amount","type":"uint256"}],"name":"withdraw","outputs":[],"stateMutability":"nonpayable","type":"function"}]

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

0000000000000000000000004737d9b4592b40d51e110b94c9c043c6654067ae0000000000000000000000007c1156e515aa1a2e851674120074968c905aaf37

-----Decoded View---------------
Arg [0] : stakingVault (address): 0x4737D9b4592B40d51e110b94c9C043c6654067Ae
Arg [1] : lvlUSD (address): 0x7C1156E515aA1A2E851674120074968C905aAF37

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000004737d9b4592b40d51e110b94c9c043c6654067ae
Arg [1] : 0000000000000000000000007c1156e515aa1a2e851674120074968c905aaf37