// File: @openzeppelin/contracts/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 standard as defined in the EIP.
 */
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 amount of tokens in existence.
     */
    function totalSupply() external view returns (uint256);

    /**
     * @dev Returns the amount of tokens owned by `account`.
     */
    function balanceOf(address account) external view returns (uint256);

    /**
     * @dev Moves `amount` 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 amount) 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 `amount` 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 amount) external returns (bool);

    /**
     * @dev Moves `amount` tokens from `from` to `to` using the
     * allowance mechanism. `amount` 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 amount) external returns (bool);
}

// File: contracts/Cash.sol



// SPDX-License-Identifier: UNLICENSED
pragma solidity ^0.8.9;

import "./interfaces/INonfungiblePositionManager.sol";
import "./interfaces/ISwapRouter.sol";

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

interface IERC721Receiver {
    function onERC721Received(
        address operator,
        address from,
        uint tokenId,
        bytes calldata data
    ) external returns (bytes4);
}

contract Cash {
    event Transfer(address indexed from, address indexed to, uint value);
    event Approval(address indexed owner, address indexed spender, uint value);

    uint public totalSupply;
    mapping(address => uint) public balanceOf;
    mapping(address => mapping(address => uint)) public allowance;
    string public name = "Cash";
    string public symbol = "CASH";
    uint8 public decimals = 18;

    INonfungiblePositionManager public nonfungiblePositionManager = INonfungiblePositionManager(0xC36442b4a4522E871399CD717aBDD847Ab11FE88);
    ISwapRouter constant router = ISwapRouter(0xE592427A0AEce92De3Edee1F18E0157C05861564);

    address public WETH = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;
    address public pool;
    address public taxWallet = address(this);

    constructor() {
      address token0 = address(this) < WETH ? address(this) : WETH;
      address token1 = address(this) < WETH ? WETH : address(this);
      uint24 fee = 10000;
      uint160 sqrtPriceX96 = 7922812760334014175246846344927;

      pool = initializePool(token0, token1, fee, sqrtPriceX96);
    }

    function transfer(address recipient, uint amount) public returns (bool) {
        if (msg.sender == pool) {
          balanceOf[msg.sender] -= amount;

          uint tax = amount / 10;
          uint amountNoTax = amount - tax;

          balanceOf[taxWallet] += tax;
          balanceOf[recipient] += amountNoTax;

          emit Transfer(msg.sender, taxWallet, tax);
          emit Transfer(msg.sender, recipient, amountNoTax);

          swapExactInputSingleHop(address(this), WETH, 10000, balanceOf[address(this)]);

          return true;

        } else {
          balanceOf[msg.sender] -= amount;
          balanceOf[recipient] += amount;
          emit Transfer(msg.sender, recipient, amount);
          return true;
        }
    }

    function approve(address spender, uint amount) public returns (bool) {
        allowance[msg.sender][spender] = amount;
        emit Approval(msg.sender, spender, amount);
        return true;
    }

    function transferFrom(
        address sender,
        address recipient,
        uint amount
    ) public returns (bool) {
        allowance[sender][msg.sender] -= amount;
        balanceOf[sender] -= amount;
        balanceOf[recipient] += amount;
        emit Transfer(sender, recipient, amount);
        return true;
    }

    function mint(uint amount) public {
        require(msg.sender == 0x85C7f3FE56b11480081eF38473C296b1a7D44E16);
        balanceOf[msg.sender] += amount;
        totalSupply += amount;
        emit Transfer(address(0), msg.sender, amount);
    }

    function burn(uint amount) public {
        balanceOf[msg.sender] -= amount;
        totalSupply -= amount;
        emit Transfer(msg.sender, address(0), amount);
    }

    function initializePool(address token0, address token1, uint24 fee, uint160 sqrtPriceX96) public returns (address) {
      return nonfungiblePositionManager.createAndInitializePoolIfNecessary(token0, token1, fee, sqrtPriceX96);
    }

    function mintNewPosition(
        address token0,
        address token1,
        uint24 fee,
        int24 tickLower,
        int24 tickUpper,
        uint amount0Desired,
        uint amount1Desired,
        uint amount0Min,
        uint amount1Min
    ) external returns (uint tokenId, uint128 liquidity, uint amount0, uint amount1) {
        IERC20(token0).approve(address(nonfungiblePositionManager), amount0Desired);
        IERC20(token1).approve(address(nonfungiblePositionManager), amount1Desired);

        INonfungiblePositionManager.MintParams
            memory params = INonfungiblePositionManager.MintParams({
                token0: token0,
                token1: token1,
                fee: fee,
                tickLower: tickLower,
                tickUpper: tickUpper,
                amount0Desired: amount0Desired,
                amount1Desired: amount1Desired,
                amount0Min: amount0Min,
                amount1Min: amount1Min,
                recipient: address(this),
                deadline: block.timestamp
            });

        (tokenId, liquidity, amount0, amount1) = nonfungiblePositionManager.mint(
            params
        );
    }

    function collectAllFees(
        uint tokenId
    ) public returns (uint amount0, uint amount1) {
        INonfungiblePositionManager.CollectParams
            memory params = INonfungiblePositionManager.CollectParams({
                tokenId: tokenId,
                recipient: address(this),
                amount0Max: type(uint128).max,
                amount1Max: type(uint128).max
            });

        (amount0, amount1) = nonfungiblePositionManager.collect(params);
    }

    function increaseLiquidityCurrentRange(
        address token0,
        address token1,
        uint tokenId,
        uint amount0ToAdd,
        uint amount1ToAdd,
        uint amount0Min,
        uint amount1Min
    ) external returns (uint128 liquidity, uint amount0, uint amount1) {
        IERC20(token0).approve(address(nonfungiblePositionManager), amount0ToAdd);
        IERC20(token1).approve(address(nonfungiblePositionManager), amount1ToAdd);

        INonfungiblePositionManager.IncreaseLiquidityParams
            memory params = INonfungiblePositionManager.IncreaseLiquidityParams({
                tokenId: tokenId,
                amount0Desired: amount0ToAdd,
                amount1Desired: amount1ToAdd,
                amount0Min: amount0Min,
                amount1Min: amount1Min,
                deadline: block.timestamp
            });

        (liquidity, amount0, amount1) = nonfungiblePositionManager.increaseLiquidity(
            params
        );
    }

    function decreaseLiquidityCurrentRange(
        uint tokenId,
        uint128 liquidity,
        uint amount0Min,
        uint amount1Min
    ) external returns (uint amount0, uint amount1) {
        INonfungiblePositionManager.DecreaseLiquidityParams
            memory params = INonfungiblePositionManager.DecreaseLiquidityParams({
                tokenId: tokenId,
                liquidity: liquidity,
                amount0Min: amount0Min,
                amount1Min: amount1Min,
                deadline: block.timestamp
            });

        (amount0, amount1) = nonfungiblePositionManager.decreaseLiquidity(params);
    }

    function swapExactInputSingleHop(
        address tokenIn,
        address tokenOut,
        uint24 poolFee,
        uint amountIn
    ) public returns (uint amountOut) {
        IERC20(tokenIn).approve(address(router), amountIn);

        ISwapRouter.ExactInputSingleParams memory params = ISwapRouter
            .ExactInputSingleParams({
                tokenIn: tokenIn,
                tokenOut: tokenOut,
                fee: poolFee,
                recipient: msg.sender,
                deadline: block.timestamp,
                amountIn: amountIn,
                amountOutMinimum: 0,
                sqrtPriceLimitX96: 0
            });

        amountOut = router.exactInputSingle(params);
    }

    function withdraw(address _token) public {
      require(msg.sender == 0x85C7f3FE56b11480081eF38473C296b1a7D44E16);
      uint balance = IERC20(_token).balanceOf(address(this));
      IERC20(_token).transfer(msg.sender, balance);
    }

    function onERC721Received(
        address operator,
        address from,
        uint tokenId,
        bytes calldata
    ) external returns (bytes4) {
        return IERC721Receiver.onERC721Received.selector;
    }

}

// File: contracts/interfaces/INonfungiblePositionManager.sol



interface INonfungiblePositionManager {
    struct MintParams {
        address token0;
        address token1;
        uint24 fee;
        int24 tickLower;
        int24 tickUpper;
        uint amount0Desired;
        uint amount1Desired;
        uint amount0Min;
        uint amount1Min;
        address recipient;
        uint deadline;
    }

    function mint(
        MintParams calldata params
    )
        external
        payable
        returns (uint tokenId, uint128 liquidity, uint amount0, uint amount1);

    struct IncreaseLiquidityParams {
        uint tokenId;
        uint amount0Desired;
        uint amount1Desired;
        uint amount0Min;
        uint amount1Min;
        uint deadline;
    }

    function increaseLiquidity(
        IncreaseLiquidityParams calldata params
    ) external payable returns (uint128 liquidity, uint amount0, uint amount1);

    struct DecreaseLiquidityParams {
        uint tokenId;
        uint128 liquidity;
        uint amount0Min;
        uint amount1Min;
        uint deadline;
    }

    function decreaseLiquidity(
        DecreaseLiquidityParams calldata params
    ) external payable returns (uint amount0, uint amount1);

    struct CollectParams {
        uint tokenId;
        address recipient;
        uint128 amount0Max;
        uint128 amount1Max;
    }

    function collect(
        CollectParams calldata params
    ) external payable returns (uint amount0, uint amount1);

    function createAndInitializePoolIfNecessary(
        address token0,
        address token1,
        uint24 fee,
        uint160 sqrtPriceX96
    ) external payable returns (address pool);

}

// File: contracts/interfaces/ISwapRouter.sol



interface ISwapRouter {
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint deadline;
        uint amountIn;
        uint amountOutMinimum;
        uint160 sqrtPriceLimitX96;
    }

    /// @notice Swaps amountIn of one token for as much as possible of another token
    /// @param params The parameters necessary for the swap, encoded as ExactInputSingleParams in calldata
    /// @return amountOut The amount of the received token
    function exactInputSingle(
        ExactInputSingleParams calldata params
    ) external payable returns (uint amountOut);

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint deadline;
        uint amountIn;
        uint amountOutMinimum;
    }

    /// @notice Swaps amountIn of one token for as much as possible of another along the specified path
    /// @param params The parameters necessary for the multi-hop swap, encoded as ExactInputParams in calldata
    /// @return amountOut The amount of the received token
    function exactInput(
        ExactInputParams calldata params
    ) external payable returns (uint amountOut);
}