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

import "@uniswap/v3-core/contracts/libraries/FullMath.sol";

/// @notice Minimal interface for a Uniswap V3 pool (to access slot0)
interface IUniswapV3Pool {
    function safelyGetStateOfAMM()
        external
        view
        returns (
            uint160 sqrtPrice,  // The current sqrt(price) as a Q64.96 value
            int24 tick,
            uint16 lastFee,
            uint8 pluginConfig,
            uint128 activeLiquidity,
            uint24 nextTick,
            uint24 previousTick
        );
}

/// @title USDC Quote for SWAPx
/// @notice Returns the USDC price (scaled to 18 decimals) of 1 token,
///         assuming a pool where token0 is USDC and token1 is the token of interest.
///         The pool is hardcoded as well as the token addresses.
contract UsdcQuoteV3 {
    // Hardcoded addresses
    address public constant POOL_ADDRESS = 0x467865E7Ce29E7ED8f362D51Fd7141117B234b44;
    // token0 is USDC
    address public constant USDC = 0x29219dd400f2Bf60E5a23d13Be72B486D4038894;
    // token1 is the token to be priced (assumed to have 18 decimals)
    address public constant TOKEN = 0xA04BC7140c26fc9BB1F36B1A604C7A5a88fb0E70;

    // Constant representing 2^192 used for fixed‑point math
    uint256 public constant Q192 = 2**192;

    function getSqrtPrice() public view returns (uint256 price) {
        IUniswapV3Pool pool = IUniswapV3Pool(POOL_ADDRESS);
        (uint160 sqrtPrice,,,,,,) = pool.safelyGetStateOfAMM();

        price = sqrtPrice;
    }
    /**
     * @notice Returns the USDC price (scaled to 18 decimals) for exactly 1 TOKEN.
     *
     * @return amount18 The USDC amount (scaled to 18 decimals) per 1 TOKEN.
     */
    function getLatestPrice(address token) external view returns (uint256 amount18) {
        uint256 sqrtPrice = getSqrtPrice();

        uint256 numerator1 = uint256(sqrtPrice) * uint256(sqrtPrice);
        uint256 directPrice = FullMath.mulDiv(numerator1, 10**6, 1 << 192);
        require(directPrice > 0, "Direct price is zero");
        amount18 = 1e36 / directPrice;

    }

}