// File: @openzeppelin/contracts/token/ERC20/extensions/IERC20Permit.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/extensions/IERC20Permit.sol)

pragma solidity ^0.8.0;

/**
 * @dev Interface of the ERC20 Permit extension allowing approvals to be made via signatures, as defined in
 * https://eips.ethereum.org/EIPS/eip-2612[EIP-2612].
 *
 * Adds the {permit} method, which can be used to change an account's ERC20 allowance (see {IERC20-allowance}) by
 * presenting a message signed by the account. By not relying on {IERC20-approve}, the token holder account doesn't
 * need to send a transaction, and thus is not required to hold Ether at all.
 */
interface IERC20Permit {
    /**
     * @dev Sets `value` as the allowance of `spender` over ``owner``'s tokens,
     * given ``owner``'s signed approval.
     *
     * IMPORTANT: The same issues {IERC20-approve} has related to transaction
     * ordering also apply here.
     *
     * Emits an {Approval} event.
     *
     * Requirements:
     *
     * - `spender` cannot be the zero address.
     * - `deadline` must be a timestamp in the future.
     * - `v`, `r` and `s` must be a valid `secp256k1` signature from `owner`
     * over the EIP712-formatted function arguments.
     * - the signature must use ``owner``'s current nonce (see {nonces}).
     *
     * For more information on the signature format, see the
     * https://eips.ethereum.org/EIPS/eip-2612#specification[relevant EIP
     * section].
     */
    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) external;

    /**
     * @dev Returns the current nonce for `owner`. This value must be
     * included whenever a signature is generated for {permit}.
     *
     * Every successful call to {permit} increases ``owner``'s nonce by one. This
     * prevents a signature from being used multiple times.
     */
    function nonces(address owner) external view returns (uint256);

    /**
     * @dev Returns the domain separator used in the encoding of the signature for {permit}, as defined by {EIP712}.
     */
    // solhint-disable-next-line func-name-mixedcase
    function DOMAIN_SEPARATOR() external view returns (bytes32);
}

// 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: @openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (token/ERC20/utils/SafeERC20.sol)

pragma solidity ^0.8.0;

import "../IERC20.sol";
import "../extensions/IERC20Permit.sol";
import "../../../utils/Address.sol";

/**
 * @title SafeERC20
 * @dev Wrappers around ERC20 operations that throw on failure (when the token
 * contract returns false). Tokens that return no value (and instead revert or
 * throw on failure) are also supported, non-reverting calls are assumed to be
 * successful.
 * To use this library you can add a `using SafeERC20 for IERC20;` statement to your contract,
 * which allows you to call the safe operations as `token.safeTransfer(...)`, etc.
 */
library SafeERC20 {
    using Address for address;

    /**
     * @dev Transfer `value` amount of `token` from the calling contract to `to`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeTransfer(IERC20 token, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transfer.selector, to, value));
    }

    /**
     * @dev Transfer `value` amount of `token` from `from` to `to`, spending the approval given by `from` to the
     * calling contract. If `token` returns no value, non-reverting calls are assumed to be successful.
     */
    function safeTransferFrom(IERC20 token, address from, address to, uint256 value) internal {
        _callOptionalReturn(token, abi.encodeWithSelector(token.transferFrom.selector, from, to, value));
    }

    /**
     * @dev Deprecated. This function has issues similar to the ones found in
     * {IERC20-approve}, and its usage is discouraged.
     *
     * Whenever possible, use {safeIncreaseAllowance} and
     * {safeDecreaseAllowance} instead.
     */
    function safeApprove(IERC20 token, address spender, uint256 value) internal {
        // safeApprove should only be called when setting an initial allowance,
        // or when resetting it to zero. To increase and decrease it, use
        // 'safeIncreaseAllowance' and 'safeDecreaseAllowance'
        require(
            (value == 0) || (token.allowance(address(this), spender) == 0),
            "SafeERC20: approve from non-zero to non-zero allowance"
        );
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, value));
    }

    /**
     * @dev Increase the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeIncreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        uint256 oldAllowance = token.allowance(address(this), spender);
        _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance + value));
    }

    /**
     * @dev Decrease the calling contract's allowance toward `spender` by `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful.
     */
    function safeDecreaseAllowance(IERC20 token, address spender, uint256 value) internal {
        unchecked {
            uint256 oldAllowance = token.allowance(address(this), spender);
            require(oldAllowance >= value, "SafeERC20: decreased allowance below zero");
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, oldAllowance - value));
        }
    }

    /**
     * @dev Set the calling contract's allowance toward `spender` to `value`. If `token` returns no value,
     * non-reverting calls are assumed to be successful. Compatible with tokens that require the approval to be set to
     * 0 before setting it to a non-zero value.
     */
    function forceApprove(IERC20 token, address spender, uint256 value) internal {
        bytes memory approvalCall = abi.encodeWithSelector(token.approve.selector, spender, value);

        if (!_callOptionalReturnBool(token, approvalCall)) {
            _callOptionalReturn(token, abi.encodeWithSelector(token.approve.selector, spender, 0));
            _callOptionalReturn(token, approvalCall);
        }
    }

    /**
     * @dev Use a ERC-2612 signature to set the `owner` approval toward `spender` on `token`.
     * Revert on invalid signature.
     */
    function safePermit(
        IERC20Permit token,
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) internal {
        uint256 nonceBefore = token.nonces(owner);
        token.permit(owner, spender, value, deadline, v, r, s);
        uint256 nonceAfter = token.nonces(owner);
        require(nonceAfter == nonceBefore + 1, "SafeERC20: permit did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     */
    function _callOptionalReturn(IERC20 token, bytes memory data) private {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We use {Address-functionCall} to perform this call, which verifies that
        // the target address contains contract code and also asserts for success in the low-level call.

        bytes memory returndata = address(token).functionCall(data, "SafeERC20: low-level call failed");
        require(returndata.length == 0 || abi.decode(returndata, (bool)), "SafeERC20: ERC20 operation did not succeed");
    }

    /**
     * @dev Imitates a Solidity high-level call (i.e. a regular function call to a contract), relaxing the requirement
     * on the return value: the return value is optional (but if data is returned, it must not be false).
     * @param token The token targeted by the call.
     * @param data The call data (encoded using abi.encode or one of its variants).
     *
     * This is a variant of {_callOptionalReturn} that silents catches all reverts and returns a bool instead.
     */
    function _callOptionalReturnBool(IERC20 token, bytes memory data) private returns (bool) {
        // We need to perform a low level call here, to bypass Solidity's return data size checking mechanism, since
        // we're implementing it ourselves. We cannot use {Address-functionCall} here since this should return false
        // and not revert is the subcall reverts.

        (bool success, bytes memory returndata) = address(token).call(data);
        return
            success && (returndata.length == 0 || abi.decode(returndata, (bool))) && Address.isContract(address(token));
    }
}

// File: @openzeppelin/contracts/utils/Address.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (utils/Address.sol)

pragma solidity ^0.8.1;

/**
 * @dev Collection of functions related to the address type
 */
library Address {
    /**
     * @dev Returns true if `account` is a contract.
     *
     * [IMPORTANT]
     * ====
     * It is unsafe to assume that an address for which this function returns
     * false is an externally-owned account (EOA) and not a contract.
     *
     * Among others, `isContract` will return false for the following
     * types of addresses:
     *
     *  - an externally-owned account
     *  - a contract in construction
     *  - an address where a contract will be created
     *  - an address where a contract lived, but was destroyed
     *
     * Furthermore, `isContract` will also return true if the target contract within
     * the same transaction is already scheduled for destruction by `SELFDESTRUCT`,
     * which only has an effect at the end of a transaction.
     * ====
     *
     * [IMPORTANT]
     * ====
     * You shouldn't rely on `isContract` to protect against flash loan attacks!
     *
     * Preventing calls from contracts is highly discouraged. It breaks composability, breaks support for smart wallets
     * like Gnosis Safe, and does not provide security since it can be circumvented by calling from a contract
     * constructor.
     * ====
     */
    function isContract(address account) internal view returns (bool) {
        // This method relies on extcodesize/address.code.length, which returns 0
        // for contracts in construction, since the code is only stored at the end
        // of the constructor execution.

        return account.code.length > 0;
    }

    /**
     * @dev Replacement for Solidity's `transfer`: sends `amount` wei to
     * `recipient`, forwarding all available gas and reverting on errors.
     *
     * https://eips.ethereum.org/EIPS/eip-1884[EIP1884] increases the gas cost
     * of certain opcodes, possibly making contracts go over the 2300 gas limit
     * imposed by `transfer`, making them unable to receive funds via
     * `transfer`. {sendValue} removes this limitation.
     *
     * https://consensys.net/diligence/blog/2019/09/stop-using-soliditys-transfer-now/[Learn more].
     *
     * IMPORTANT: because control is transferred to `recipient`, care must be
     * taken to not create reentrancy vulnerabilities. Consider using
     * {ReentrancyGuard} or the
     * https://solidity.readthedocs.io/en/v0.8.0/security-considerations.html#use-the-checks-effects-interactions-pattern[checks-effects-interactions pattern].
     */
    function sendValue(address payable recipient, uint256 amount) internal {
        require(address(this).balance >= amount, "Address: insufficient balance");

        (bool success, ) = recipient.call{value: amount}("");
        require(success, "Address: unable to send value, recipient may have reverted");
    }

    /**
     * @dev Performs a Solidity function call using a low level `call`. A
     * plain `call` is an unsafe replacement for a function call: use this
     * function instead.
     *
     * If `target` reverts with a revert reason, it is bubbled up by this
     * function (like regular Solidity function calls).
     *
     * Returns the raw returned data. To convert to the expected return value,
     * use https://solidity.readthedocs.io/en/latest/units-and-global-variables.html?highlight=abi.decode#abi-encoding-and-decoding-functions[`abi.decode`].
     *
     * Requirements:
     *
     * - `target` must be a contract.
     * - calling `target` with `data` must not revert.
     *
     * _Available since v3.1._
     */
    function functionCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, "Address: low-level call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`], but with
     * `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        return functionCallWithValue(target, data, 0, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but also transferring `value` wei to `target`.
     *
     * Requirements:
     *
     * - the calling contract must have an ETH balance of at least `value`.
     * - the called Solidity function must be `payable`.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(address target, bytes memory data, uint256 value) internal returns (bytes memory) {
        return functionCallWithValue(target, data, value, "Address: low-level call with value failed");
    }

    /**
     * @dev Same as {xref-Address-functionCallWithValue-address-bytes-uint256-}[`functionCallWithValue`], but
     * with `errorMessage` as a fallback revert reason when `target` reverts.
     *
     * _Available since v3.1._
     */
    function functionCallWithValue(
        address target,
        bytes memory data,
        uint256 value,
        string memory errorMessage
    ) internal returns (bytes memory) {
        require(address(this).balance >= value, "Address: insufficient balance for call");
        (bool success, bytes memory returndata) = target.call{value: value}(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(address target, bytes memory data) internal view returns (bytes memory) {
        return functionStaticCall(target, data, "Address: low-level static call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a static call.
     *
     * _Available since v3.3._
     */
    function functionStaticCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        (bool success, bytes memory returndata) = target.staticcall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(address target, bytes memory data) internal returns (bytes memory) {
        return functionDelegateCall(target, data, "Address: low-level delegate call failed");
    }

    /**
     * @dev Same as {xref-Address-functionCall-address-bytes-string-}[`functionCall`],
     * but performing a delegate call.
     *
     * _Available since v3.4._
     */
    function functionDelegateCall(
        address target,
        bytes memory data,
        string memory errorMessage
    ) internal returns (bytes memory) {
        (bool success, bytes memory returndata) = target.delegatecall(data);
        return verifyCallResultFromTarget(target, success, returndata, errorMessage);
    }

    /**
     * @dev Tool to verify that a low level call to smart-contract was successful, and revert (either by bubbling
     * the revert reason or using the provided one) in case of unsuccessful call or if target was not a contract.
     *
     * _Available since v4.8._
     */
    function verifyCallResultFromTarget(
        address target,
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal view returns (bytes memory) {
        if (success) {
            if (returndata.length == 0) {
                // only check isContract if the call was successful and the return data is empty
                // otherwise we already know that it was a contract
                require(isContract(target), "Address: call to non-contract");
            }
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    /**
     * @dev Tool to verify that a low level call was successful, and revert if it wasn't, either by bubbling the
     * revert reason or using the provided one.
     *
     * _Available since v4.3._
     */
    function verifyCallResult(
        bool success,
        bytes memory returndata,
        string memory errorMessage
    ) internal pure returns (bytes memory) {
        if (success) {
            return returndata;
        } else {
            _revert(returndata, errorMessage);
        }
    }

    function _revert(bytes memory returndata, string memory errorMessage) private pure {
        // Look for revert reason and bubble it up if present
        if (returndata.length > 0) {
            // The easiest way to bubble the revert reason is using memory via assembly
            /// @solidity memory-safe-assembly
            assembly {
                let returndata_size := mload(returndata)
                revert(add(32, returndata), returndata_size)
            }
        } else {
            revert(errorMessage);
        }
    }
}

// File: contractEthereum/swapEthereumV1.sol



// SPDX-License-Identifier: GPL-3.0
pragma solidity >=0.7.0 <0.9.0;

import "@openzeppelin/contracts/token/ERC20/utils/SafeERC20.sol";

interface IUniswapRouterV2 {
    function getAmountOut(uint amountIn, uint reserveIn, uint reserveOut) external pure returns (uint amountOut);
    function getAmountsOut(uint amountIn, address[] memory path) external view returns (uint[] memory amounts);
    function swapExactETHForTokens(uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    payable
    returns (uint[] memory amounts);

    function swapExactTokensForTokens(
    uint amountIn,
    uint amountOutMin,
    address[] calldata path,
    address to,
    uint deadline) external
    returns (uint[] memory amounts);

    function swapExactTokensForETH(uint amountIn, uint amountOutMin, address[] calldata path, address to, uint deadline)
    external
    returns (uint[] memory amounts);
}

interface IUniswapRouterV3{

    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;
        }

    struct ExactInputParams {
        bytes path;
        address recipient;
        uint256 deadline;
        uint256 amountIn;
        uint256 amountOutMinimum;
        }

    function exactInputSingle(ExactInputSingleParams memory params) external payable returns (uint256 amountOut);
    function exactInput(ExactInputParams memory params) external returns (uint256 amountOut);
}

interface IPancakeRouterV3{
    struct ExactInputSingleParams {
        address tokenIn;
        address tokenOut;
        uint24 fee;
        address recipient;
        uint256 amountIn;
        uint256 amountOutMinimum;
        uint160 sqrtPriceLimitX96;}

    function exactInputSingle(ExactInputSingleParams memory params) external payable returns (uint256 amountOut);
}
interface IBancorNetworkInfo{
    function tradeOutputBySourceAmount(address sourceToken, address targetToken, uint256 sourceAmount)external view returns(uint);
    function tradingEnabled(address pool) external view returns (bool);
    function poolToken(address pool) external view returns (address);
}

interface IBancorNetwork{
        function tradeBySourceAmount(
        address sourceToken,
        address targetToken,
        uint256 sourceAmount,
        uint256 minReturnAmount,
        uint256 deadline,
        address beneficiary
    ) external payable returns(uint);
        function version()external view returns(uint);
        function pendingNetworkFeeAmount()external view returns(uint);
}

 interface IWERC20{
    function deposit()external payable;
    function withdraw(uint256 amount) external payable;
    function approve(address spender, uint256 amount) external returns (bool);
    function allowance(address owner, address spender) external view returns (uint256);
    function balanceOf(address owner)external view returns(uint);
    function transfer(address to , uint value)external view;
 }

interface ItypeData{

    struct EndResult{
        address pool;
        uint price;
        int decimalDifference;
        uint amountIn;
        uint24 fee;
        bool invert; 
        string dexVersion;
    }
}

interface IswapData{

    struct SwapInputs{
    address tokenIn;
    address tokenOut;
    address middleWareToken;
    address receiver;
    bytes pathV3;
    uint amountIn;
    uint24 fee;
    bool isCoin;
    uint deadline;
    uint amountOutMinimum;
    string contractType;
    }
}


contract swapEthereumV1{

    using SafeERC20 for IERC20;

    mapping(string =>mapping(string => address)) dexsToSymbols;
    mapping(string => uint24)feeOfTheDex;

    address admin;
    address Weth = 0xC02aaA39b223FE8D0A0e5C4F27eAD9083C756Cc2;

    event SetNewAddress(string , string);
    event Swap(address indexed user,uint amountIn, address tokenIn , uint indexed amountOut , address indexed tokenOut);
    event SetFeeDex(string , uint24);

    modifier onlyAdmin(){
        require(msg.sender == admin , "not the admin");
        _;
    }

    modifier isAmount(){
        require(msg.value > 0 , "amount does not exist");
        _;
    }

    modifier isToken(address token){
        require(token !=address(0) , "address token does not exits");
        _;
    }

    constructor(){
        admin = msg.sender;
    }

    receive()external payable{}

    function setDexSymbolContracts(string calldata dexName,string calldata symbol,address contractAddress) external onlyAdmin{
        require(dexsToSymbols[dexName][symbol] == address(0) , "dex address is set");
        dexsToSymbols[dexName][symbol] = contractAddress;
        emit SetNewAddress(dexName , symbol);
    }

    function setFeeOfDex(string memory contractType , uint24 feeAmount)external onlyAdmin{
        require(feeOfTheDex[contractType] == 0 ,"fee is set");
        feeOfTheDex[contractType] = feeAmount;
        emit SetFeeDex(contractType , feeAmount);
    }

    function removeFeeOfDex(string memory contractType)external onlyAdmin{
        delete feeOfTheDex[contractType];
    }

    function deletedexContractAddress(string  memory dex , string memory contractType)external onlyAdmin returns(bool){
        
      bool status = dexsToSymbols[dex][contractType] == address(0) ? false : true;
        
      delete dexsToSymbols[dex][contractType];

      return status;
    }

    function executeSwap(IswapData.SwapInputs memory swapInput)
    public payable 
    isToken(swapInput.tokenIn)
    returns(uint amountOut){
        if(swapInput.tokenIn != Weth && swapInput.isCoin != true)require(msg.value == 0 , "no funds accepted");

      if(checkDexName(swapInput.contractType , "UNISWAPV3")){
            
            amountOut = UniswapV3Execute(swapInput);

      }else if(checkDexName(swapInput.contractType , "PANCAKESWAPV3")){

            amountOut = PancakeSwapExecute(swapInput);

      }else if(checkDexName(swapInput.contractType , "UNISWAPV2")
      ||checkDexName(swapInput.contractType , "PANCAKESWAPV2")
      ||checkDexName(swapInput.contractType , "SUSHISWAPV2")){

            amountOut = UniswapV2Execute(swapInput);
        }else{
            amountOut = BancorExecute(swapInput);
        }

      emit Swap(swapInput.receiver , swapInput.amountIn, swapInput.tokenIn , amountOut , swapInput.tokenOut);
    } 

    function UniswapV2Execute(IswapData.SwapInputs memory swapInput)
    public payable 
    isToken(swapInput.tokenIn)
    returns(uint){
        address payable RouterV2 = payable (dexToContractAddress(swapInput.contractType ,"ROUTERV2"));
        address [] memory path;
        uint[] memory amountOut;
        address sender = msg.sender;

        require(RouterV2 != address(0) , "address for dex not found");
        if(swapInput.tokenIn == Weth && swapInput.isCoin)require(msg.value > 0 ,"not enough ETH");

        if(swapInput.middleWareToken != address(0)){
            path = new address[](3);
            path[0] = swapInput.tokenIn;
            path[1] = swapInput.middleWareToken;
            path[2] = swapInput.tokenOut; 
        }else{
            path = new address[](2);
            path[0] = swapInput.tokenIn;
            path[1] = swapInput.tokenOut; 
        }

        
        if(swapInput.tokenIn == Weth && swapInput.isCoin && !(checkDexName(swapInput.contractType,"PANCAKESWAPV2"))){
            
            require(msg.value > 0 ,"not enough ETH");
              
            amountOut = IUniswapRouterV2(RouterV2).swapExactETHForTokens{value: msg.value}(swapInput.amountOutMinimum , path, swapInput.receiver , swapInput.deadline);
            
        }else if(swapInput.tokenOut == Weth && swapInput.isCoin){
            require(IERC20(swapInput.tokenIn).balanceOf(sender)  >= swapInput.amountIn , "not enough tokens");

            IERC20(swapInput.tokenIn).safeTransferFrom(sender ,address(this) ,swapInput.amountIn);
            IERC20(swapInput.tokenIn).safeIncreaseAllowance(RouterV2 ,swapInput.amountIn);

            amountOut = IUniswapRouterV2(RouterV2).swapExactTokensForETH(swapInput.amountIn , swapInput.amountOutMinimum ,path ,swapInput.receiver ,swapInput.deadline);
        }else{

            if(!swapInput.isCoin || !checkDexName(swapInput.contractType,"PANCAKESWAPV2")){

                require(msg.value == 0 , "eth must not be send");
                require(IERC20(swapInput.tokenIn).balanceOf(swapInput.receiver)  >= swapInput.amountIn , "not enough tokens");
            }

            if(swapInput.tokenIn == Weth && swapInput.isCoin && checkDexName(swapInput.contractType,"PANCAKESWAPV2")){
                bool status = ethToWeth(swapInput.amountIn , true);
                require(status , "not deposited");
            }
            
            if(!swapInput.isCoin || !checkDexName(swapInput.contractType,"PANCAKESWAPV2")){
                IERC20(swapInput.tokenIn).safeTransferFrom(sender ,address(this) ,swapInput.amountIn);
                
            }
            
            IERC20(swapInput.tokenIn).safeIncreaseAllowance(RouterV2 ,swapInput.amountIn);
            
            amountOut = IUniswapRouterV2(RouterV2).swapExactTokensForTokens(swapInput.amountIn , swapInput.amountOutMinimum , path , swapInput.receiver ,swapInput.deadline);
        }
        return amountOut[path.length - 1];  
    }

    function ethToWeth( uint amount , bool zeroToOne)public payable returns(bool){
        //zero for withdraw , one for deposit
        if(zeroToOne){
            require(amount == msg.value ,"not the same amount for deposit");
            IWERC20(Weth).deposit{value:msg.value}();
            return true;
        }else{
            IWERC20(Weth).withdraw(amount);
            return true;
        }
    }

    function UniswapV3Execute(IswapData.SwapInputs memory swapInput)
    public payable 
    isToken(swapInput.tokenIn) 
    returns(uint){

        if(swapInput.tokenIn == Weth && swapInput.isCoin) require(msg.value == swapInput.amountIn , "not correct amount");
        
        address  RouterV3 = dexToContractAddress(swapInput.contractType , "ROUTERV3");
        address sender = msg.sender;
        address receiver = swapInput.receiver;
        uint160 sqrtPriceLimitX96 = 0;//for testing
        uint amountOut;
        IUniswapRouterV3.ExactInputSingleParams memory params;

        if(swapInput.tokenOut == Weth && swapInput.isCoin)receiver = address(this);

        params = IUniswapRouterV3.ExactInputSingleParams(swapInput.tokenIn , swapInput.tokenOut , swapInput.fee 
                                                        ,receiver , swapInput.deadline , swapInput.amountIn 
                                                        ,swapInput.amountOutMinimum ,sqrtPriceLimitX96);

        if(swapInput.tokenIn == Weth && swapInput.isCoin){
            
            amountOut = IUniswapRouterV3(RouterV3).exactInputSingle{value : msg.value}(params);
        
        }else {

            approving(swapInput.tokenIn,sender,RouterV3,swapInput.amountIn);

            if(swapInput.middleWareToken ==address(0) && (swapInput.pathV3).length == 0){

                amountOut = IUniswapRouterV3(RouterV3).exactInputSingle(params);

            }else if((swapInput.pathV3).length != 0){

                amountOut = multiHopSwapV3(swapInput,receiver);
                if(receiver != address(this))return(amountOut);

            }

            if(swapInput.tokenOut == Weth && swapInput.isCoin){
                ethToWeth(amountOut , false);
                (payable(swapInput.receiver)).transfer(amountOut);
            }
        }
        return amountOut;
    }

    function PancakeSwapExecute(IswapData.SwapInputs memory swapInput)
    public payable 
    isToken(swapInput.tokenIn) 
    returns(uint){ 
    
    require(swapInput.tokenIn != address(0) , "not correct address");

    if(msg.value > 0) require(msg.value == swapInput.amountIn , "not correct amount");
    
    address  RouterV3 = dexToContractAddress(swapInput.contractType , "ROUTERV3");
    address sender = msg.sender;
    address receiver = swapInput.receiver;
    uint amountOut;
    uint160 sqrtPriceLimitX96 = 0;//for testing
    IPancakeRouterV3.ExactInputSingleParams memory params;

    params = IPancakeRouterV3.ExactInputSingleParams(swapInput.tokenIn , swapInput.tokenOut , swapInput.fee 
                                                    ,receiver , swapInput.amountIn , swapInput.amountOutMinimum 
                                                    ,sqrtPriceLimitX96);

    if(swapInput.tokenIn == Weth && swapInput.isCoin){
            amountOut = IPancakeRouterV3(RouterV3).exactInputSingle{value : msg.value}(params);
        
    }else {

            IERC20(swapInput.tokenIn).transferFrom(sender , address(this) , swapInput.amountIn);
            IERC20(swapInput.tokenIn).safeIncreaseAllowance(RouterV3 ,swapInput.amountIn);
            // approving(swapInput.tokenIn,msg.sender,RouterV3,swapInput.amountIn);

            (bool status , bytes memory data) = RouterV3.call{value:0}(abi.encodeWithSelector(IPancakeRouterV3(RouterV3).exactInputSingle.selector,params));
            require(status , "swap failed");
            amountOut = abi.decode(data , (uint));

            if(swapInput.tokenOut == Weth && swapInput.isCoin){
                ethToWeth(amountOut , false);
                (payable(swapInput.receiver)).transfer(amountOut);
            }
        }
        return amountOut;
    
    }

    function BancorExecute(IswapData.SwapInputs memory swapInput)public payable isToken(swapInput.tokenIn) returns(uint){
        address beneficiary = swapInput.receiver;
        address sender = msg.sender;
        address router = dexToContractAddress(swapInput.contractType,"RouterV3");
        
        require(router !=address(0),"no address for router set");

        if(swapInput.tokenIn == Weth && swapInput.isCoin){
            require(msg.value == swapInput.amountIn , "not correct amount");
        }else{
            require(msg.value == 0 , "not correct amount");
            approving(swapInput.tokenIn , sender , router , swapInput.amountIn);
        }
        uint amountOut = IBancorNetwork(router).tradeBySourceAmount{value:msg.value}(swapInput.tokenIn, swapInput.tokenOut, swapInput.amountIn, swapInput.amountOutMinimum, swapInput.deadline, beneficiary);
        return amountOut;
    }

    function multiHopSwapV3(IswapData.SwapInputs memory swapInput , address recipient)public isToken(swapInput.tokenIn) returns(uint){
        address routerV3 = dexToContractAddress(swapInput.contractType, "ROUTERV3");
        uint amount;
        require(routerV3 !=address(0),"no address for router set");
        if((swapInput.pathV3).length != 0){
            IUniswapRouterV3.ExactInputParams memory params = IUniswapRouterV3.ExactInputParams(swapInput.pathV3 , recipient,swapInput.deadline,swapInput.amountIn,swapInput.amountOutMinimum);
            amount = IUniswapRouterV3(routerV3).exactInput(params);
            
        }
        require(amount > 0 , "not swapped");
        return amount;
    }

    function approving(address token,address sender,address approveAddress,uint amountIn)internal {
        IERC20(token).safeTransferFrom(sender , address(this) , amountIn);
        IERC20(token).safeIncreaseAllowance(approveAddress ,amountIn);
    }


    function checkDexName(string memory name , string memory dex)public pure returns(bool){
        return keccak256(abi.encodePacked(name)) == keccak256(abi.encodePacked(dex));
    }

    function dexToContractAddress(string  memory dex , string memory contractType)public view returns(address){
        return dexsToSymbols[dex][contractType];
    }

    function changeAdmin(address newAdmin)external onlyAdmin{
        admin = newAdmin;
    }
}