// SPDX-License-Identifier: MIT
pragma solidity ^0.8.20;

import "../interfaces/IAdapter.sol";

/**
 * @title UniswapAdapter
 * @notice Adapter for Uniswap V3 swaps
 */
contract UniswapAdapter is IAdapter {
    string public constant override name = "Uniswap V3";
    
    // Mock Uniswap router (in production, use actual Uniswap V3 router)
    address public router;

    constructor(address _router) {
        router = _router;
    }

    function executeStep(bytes calldata data) external override returns (bool success, bytes memory returnData) {
        // Decode swap parameters
        // (address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOutMin, uint24 fee)
        (address tokenIn, address tokenOut, uint256 amountIn, uint256 amountOutMin, uint24 fee) = 
            abi.decode(data, (address, address, uint256, uint256, uint24));

        // In production, call Uniswap router
        // (success, returnData) = router.call(abi.encodeWithSignature("exactInputSingle(...)"));
        
        // Mock implementation
        success = true;
        returnData = abi.encode(amountOutMin); // Return amount out
    }

    function prepareStep(bytes calldata data) external override returns (bool prepared) {
        // Check if swap can be prepared (liquidity check, etc.)
        return true;
    }

    function adapterType() external pure override returns (uint8) {
        return 0; // DEFI
    }
}