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// SPDX-License-Identifier: MIT

pragma solidity 0.8.23;

import "./Wrapper.sol";

contract BaseCoinWrapper is Wrapper {
    constructor(IERC20 base, IERC20 wBase) Wrapper(base, wBase) {} // solhint-disable-line no-empty-blocks

    function _wrap() internal view virtual override returns (IERC20 wrappedToken, uint256 rate) {
        return (WBASE, 1e18);
    }

    function _unwrap() internal view virtual override returns (IERC20 unwrappedToken, uint256 rate) {
        return (BASE, 1e18);
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v5.1.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.20;

/**
 * @dev Interface of the ERC-20 standard as defined in the ERC.
 */
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

pragma solidity 0.8.23;

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

interface IWrapper {
    error NotSupportedToken();
    error NotAddedMarket();
    error NotRemovedMarket();

    function wrap(IERC20 token) external view returns (IERC20 wrappedToken, uint256 rate);
}

// SPDX-License-Identifier: MIT

pragma solidity 0.8.23;

import "../interfaces/IWrapper.sol";

abstract contract Wrapper is IWrapper {
    IERC20 public immutable BASE;
    IERC20 public immutable WBASE;

    constructor(IERC20 base, IERC20 wBase) {
        BASE = base;
        WBASE = wBase;
    }

    function wrap(IERC20 token) external view override returns (IERC20 wrappedToken, uint256 rate) {
        if(token == BASE) {
            return _wrap();
        } else if (token == WBASE) {
            return _unwrap();
        } else {
            revert NotSupportedToken();
        }
    }

    function _wrap() internal view virtual returns (IERC20 wrappedToken, uint256 rate) {} // solhint-disable-line no-empty-blocks

    function _unwrap() internal view virtual returns (IERC20 unwrappedToken, uint256 rate) {} // solhint-disable-line no-empty-blocks
}

{
  "optimizer": {
    "enabled": true,
    "runs": 1000000
  },
  "evmVersion": "shanghai",
  "viaIR": true,
  "outputSelection": {
    "*": {
      "*": [
        "evm.bytecode",
        "evm.deployedBytecode",
        "devdoc",
        "userdoc",
        "metadata",
        "abi"
      ]
    }
  },
  "metadata": {
    "useLiteralContent": true
  },
  "libraries": {}
}

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00000000000000000000000000000000000000000000000000000000000000000000000000000000000000004200000000000000000000000000000000000006

-----Decoded View---------------
Arg [0] : base (address): 0x0000000000000000000000000000000000000000
Arg [1] : wBase (address): 0x4200000000000000000000000000000000000006

-----Encoded View---------------
2 Constructor Arguments found :
Arg [0] : 0000000000000000000000000000000000000000000000000000000000000000
Arg [1] : 0000000000000000000000004200000000000000000000000000000000000006