// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.19;

import { Kraiken } from "../../src/Kraiken.sol";

import { LiquidityManager } from "../../src/LiquidityManager.sol";

import "../../src/Optimizer.sol";
import { Stake } from "../../src/Stake.sol";
import "../../src/abstracts/ThreePositionStrategy.sol";

import "../../src/helpers/UniswapHelpers.sol";
import "../../src/interfaces/IWETH9.sol";

import "../../test/mocks/MockOptimizer.sol";
import "@aperture/uni-v3-lib/TickMath.sol";
import "@uniswap-v3-core/interfaces/IUniswapV3Factory.sol";
import "@uniswap-v3-core/interfaces/IUniswapV3Pool.sol";
import "forge-std/Test.sol";
import { WETH } from "solmate/tokens/WETH.sol";

// Constants
uint24 constant FEE = uint24(10_000); // 1% fee
uint256 constant INITIAL_LM_ETH_BALANCE = 50 ether;
uint256 constant ORACLE_UPDATE_INTERVAL = 5 hours;

/**
 * @title TestConstants
 * @notice Base contract providing shared constants and default parameters for tests
 * @dev Consolidates common test constants to reduce code duplication
 */
abstract contract TestConstants is Test {
    /**
     * @notice Returns default parameters for ThreePositionStrategy testing
     * @return Default PositionParams structure with standard values
     * @dev Used across multiple test files to ensure consistency
     */
    function getDefaultParams() internal pure returns (ThreePositionStrategy.PositionParams memory) {
        return ThreePositionStrategy.PositionParams({
            capitalInefficiency: 5 * 10 ** 17, // 50%
            anchorShare: 5 * 10 ** 17, // 50%
            anchorWidth: 50, // 50%
            discoveryDepth: 5 * 10 ** 17 // 50%
        });
    }

    /**
     * @notice Helper function to convert value to basis points
     * @param val Value to convert
     * @return Value in basis points
     */
    function bp(uint256 val) internal pure returns (uint256) {
        return val / 1e15;
    }

    /**
     * @notice Helper function to denormalize tax rate
     * @param normalizedTaxRate Normalized tax rate
     * @return Denormalized tax rate
     */
    function denormTR(uint256 normalizedTaxRate) internal pure returns (uint256) {
        return normalizedTaxRate * 97;
    }
}

/**
 * @title TestEnvironment
 * @notice Helper contract that provides test environment setup for LiquidityManager tests and scripts
 * @dev Extracted from LiquidityManager.t.sol to enable reuse without inheritance
 */
contract TestEnvironment is TestConstants {
    using UniswapHelpers for IUniswapV3Pool;

    // Core contracts
    IUniswapV3Factory internal factory;
    IUniswapV3Pool internal pool;
    IWETH9 internal weth;
    Kraiken internal harberg;
    Stake internal stake;
    LiquidityManager internal lm;
    Optimizer internal optimizer;

    // State variables
    bool internal token0isWeth;
    address internal feeDestination;

    constructor(address _feeDestination) {
        feeDestination = _feeDestination;
    }

    /**
     * @notice Deploy all contracts and set up the environment
     * @param token0shouldBeWeth Whether WETH should be token0
     * @return _factory The deployed Uniswap factory
     * @return _pool The created Uniswap pool
     * @return _weth The WETH token contract
     * @return _harberg The Kraiken token contract
     * @return _stake The staking contract
     * @return _lm The liquidity manager contract
     * @return _optimizer The optimizer contract
     * @return _token0isWeth Whether token0 is WETH
     */
    function setupEnvironment(bool token0shouldBeWeth)
        external
        returns (
            IUniswapV3Factory _factory,
            IUniswapV3Pool _pool,
            IWETH9 _weth,
            Kraiken _harberg,
            Stake _stake,
            LiquidityManager _lm,
            Optimizer _optimizer,
            bool _token0isWeth
        )
    {
        // Deploy factory
        factory = UniswapHelpers.deployUniswapFactory();

        // Deploy tokens in correct order
        _deployTokensWithOrder(token0shouldBeWeth);

        // Create and initialize pool
        _createAndInitializePool();

        // Deploy protocol contracts
        _deployProtocolContracts();

        // Configure permissions
        _configurePermissions();

        return (factory, pool, weth, harberg, stake, lm, optimizer, token0isWeth);
    }

    /**
     * @notice Deploy tokens ensuring the desired ordering
     * @param token0shouldBeWeth Whether WETH should be token0
     */
    function _deployTokensWithOrder(bool token0shouldBeWeth) internal {
        bool setupComplete = false;
        uint256 retryCount = 0;

        while (!setupComplete && retryCount < 20) {
            // Clean slate if retrying
            if (retryCount > 0) {
                // Deploy a dummy contract to shift addresses
                new WETH(); // Use WETH as dummy to avoid declaring new contract
            }

            weth = IWETH9(address(new WETH()));
            harberg = new Kraiken("KRAIKEN", "KRAIKEN");

            // Check if the setup meets the required condition
            if (token0shouldBeWeth == (address(weth) < address(harberg))) {
                setupComplete = true;
            } else {
                // Clear current instances for re-deployment
                delete weth;
                delete harberg;
                retryCount++;
            }
        }
        require(setupComplete, "Setup failed to meet the condition after several retries");
    }

    /**
     * @notice Create and initialize the Uniswap pool
     * @dev Warp 61 seconds after pool init so _isPriceStable()'s 30-second TWAP window
     *      has sufficient history AND the 60-second recenter cooldown is satisfied
     *      for any subsequent recenter() call.
     */
    function _createAndInitializePool() internal {
        pool = IUniswapV3Pool(factory.createPool(address(weth), address(harberg), FEE));
        token0isWeth = address(weth) < address(harberg);
        pool.initializePoolFor1Cent(token0isWeth);
        vm.warp(block.timestamp + 61);
    }

    /**
     * @notice Deploy protocol contracts (Stake, Optimizer, LiquidityManager)
     */
    function _deployProtocolContracts() internal {
        stake = new Stake(address(harberg), feeDestination);
        optimizer = Optimizer(address(new MockOptimizer()));
        optimizer.initialize(address(harberg), address(stake));
        lm = new LiquidityManager(address(factory), address(weth), address(harberg), address(optimizer));
        lm.setFeeDestination(feeDestination);
    }

    /**
     * @notice Configure permissions and initial funding
     */
    function _configurePermissions() internal {
        harberg.setStakingPool(address(stake));
        harberg.setLiquidityManager(address(lm));
        vm.deal(address(lm), INITIAL_LM_ETH_BALANCE);
    }

    /**
     * @notice Setup environment with specific optimizer
     * @param token0shouldBeWeth Whether WETH should be token0
     * @param optimizerAddress Address of the optimizer to use
     * @return _factory The deployed Uniswap factory
     * @return _pool The created Uniswap pool
     * @return _weth The WETH token contract
     * @return _harberg The Kraiken token contract
     * @return _stake The staking contract
     * @return _lm The liquidity manager contract
     * @return _optimizer The optimizer contract
     * @return _token0isWeth Whether token0 is WETH
     */
    function setupEnvironmentWithOptimizer(
        bool token0shouldBeWeth,
        address optimizerAddress
    )
        external
        returns (
            IUniswapV3Factory _factory,
            IUniswapV3Pool _pool,
            IWETH9 _weth,
            Kraiken _harberg,
            Stake _stake,
            LiquidityManager _lm,
            Optimizer _optimizer,
            bool _token0isWeth
        )
    {
        // Deploy factory
        factory = UniswapHelpers.deployUniswapFactory();

        // Deploy tokens in correct order
        _deployTokensWithOrder(token0shouldBeWeth);

        // Create and initialize pool
        _createAndInitializePool();

        // Deploy protocol contracts with custom optimizer
        stake = new Stake(address(harberg), feeDestination);
        optimizer = Optimizer(optimizerAddress);
        lm = new LiquidityManager(address(factory), address(weth), address(harberg), optimizerAddress);
        lm.setFeeDestination(feeDestination);

        // Configure permissions
        _configurePermissions();

        return (factory, pool, weth, harberg, stake, lm, optimizer, token0isWeth);
    }

    /**
     * @notice Deploy all contracts with feeDestination set to the LiquidityManager itself.
     * @dev Useful for testing the "fees accrue as liquidity" path introduced in issue #533.
     *      When feeDestination == address(lm), _scrapePositions skips fee transfers and
     *      _getOutstandingSupply skips the feeDestination KRK subtraction (already excluded
     *      by outstandingSupply()).
     * @param token0shouldBeWeth Whether WETH should be token0
     */
    function setupEnvironmentWithSelfFeeDestination(bool token0shouldBeWeth)
        external
        returns (
            IUniswapV3Factory _factory,
            IUniswapV3Pool _pool,
            IWETH9 _weth,
            Kraiken _harberg,
            Stake _stake,
            LiquidityManager _lm,
            Optimizer _optimizer,
            bool _token0isWeth
        )
    {
        // Deploy factory and tokens
        factory = UniswapHelpers.deployUniswapFactory();
        _deployTokensWithOrder(token0shouldBeWeth);
        _createAndInitializePool();

        // Deploy protocol contracts; Stake gets a throwaway feeDestination address
        address stakeFee = makeAddr("stakeFeeDestination");
        stake = new Stake(address(harberg), stakeFee);
        optimizer = Optimizer(address(new MockOptimizer()));
        optimizer.initialize(address(harberg), address(stake));
        lm = new LiquidityManager(address(factory), address(weth), address(harberg), address(optimizer));

        // Set feeDestination to the LM itself — this is the self-referencing mode under test
        lm.setFeeDestination(address(lm));

        harberg.setStakingPool(address(stake));
        harberg.setLiquidityManager(address(lm));
        vm.deal(address(lm), INITIAL_LM_ETH_BALANCE);

        return (factory, pool, weth, harberg, stake, lm, optimizer, token0isWeth);
    }

    /**
     * @notice Deploy all contracts WITHOUT calling setFeeDestination — feeDestination stays address(0).
     * @dev Regression helper for issue #624: verifies that _scrapePositions gracefully handles
     *      an uninitialized feeDestination instead of attempting safeTransfer to address(0).
     * @param token0shouldBeWeth Whether WETH should be token0
     */
    function setupEnvironmentWithUnsetFeeDestination(bool token0shouldBeWeth)
        external
        returns (
            IUniswapV3Factory _factory,
            IUniswapV3Pool _pool,
            IWETH9 _weth,
            Kraiken _harberg,
            Stake _stake,
            LiquidityManager _lm,
            Optimizer _optimizer,
            bool _token0isWeth
        )
    {
        // Deploy factory and tokens
        factory = UniswapHelpers.deployUniswapFactory();
        _deployTokensWithOrder(token0shouldBeWeth);
        _createAndInitializePool();

        // Deploy protocol contracts; Stake gets a throwaway feeDestination address
        address stakeFee = makeAddr("stakeFeeDestination");
        stake = new Stake(address(harberg), stakeFee);
        optimizer = Optimizer(address(new MockOptimizer()));
        optimizer.initialize(address(harberg), address(stake));
        lm = new LiquidityManager(address(factory), address(weth), address(harberg), address(optimizer));

        // Intentionally do NOT call lm.setFeeDestination() — feeDestination stays address(0)

        harberg.setStakingPool(address(stake));
        harberg.setLiquidityManager(address(lm));
        vm.deal(address(lm), INITIAL_LM_ETH_BALANCE);

        return (factory, pool, weth, harberg, stake, lm, optimizer, token0isWeth);
    }

    /**
     * @notice Setup environment with existing factory and specific optimizer
     * @param existingFactory The existing Uniswap factory to use
     * @param token0shouldBeWeth Whether WETH should be token0
     * @param optimizerAddress Address of the optimizer to use
     * @return _factory The existing Uniswap factory
     * @return _pool The created Uniswap pool
     * @return _weth The WETH token contract
     * @return _harberg The Kraiken token contract
     * @return _stake The staking contract
     * @return _lm The liquidity manager contract
     * @return _optimizer The optimizer contract
     * @return _token0isWeth Whether token0 is WETH
     */
    function setupEnvironmentWithExistingFactory(
        IUniswapV3Factory existingFactory,
        bool token0shouldBeWeth,
        address optimizerAddress
    )
        external
        returns (
            IUniswapV3Factory _factory,
            IUniswapV3Pool _pool,
            IWETH9 _weth,
            Kraiken _harberg,
            Stake _stake,
            LiquidityManager _lm,
            Optimizer _optimizer,
            bool _token0isWeth
        )
    {
        // Use existing factory
        factory = existingFactory;

        // Deploy tokens in correct order
        _deployTokensWithOrder(token0shouldBeWeth);

        // Create and initialize pool
        _createAndInitializePool();

        // Deploy protocol contracts with custom optimizer
        stake = new Stake(address(harberg), feeDestination);
        optimizer = Optimizer(optimizerAddress);
        lm = new LiquidityManager(address(factory), address(weth), address(harberg), optimizerAddress);
        lm.setFeeDestination(feeDestination);

        // Configure permissions
        _configurePermissions();

        return (factory, pool, weth, harberg, stake, lm, optimizer, token0isWeth);
    }
}
