// File: @openzeppelin/contracts/access/Ownable.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.7.0) (access/Ownable.sol)

pragma solidity ^0.8.0;

import "../utils/Context.sol";

/**
 * @dev Contract module which provides a basic access control mechanism, where
 * there is an account (an owner) that can be granted exclusive access to
 * specific functions.
 *
 * By default, the owner account will be the one that deploys the contract. This
 * can later be changed with {transferOwnership}.
 *
 * This module is used through inheritance. It will make available the modifier
 * `onlyOwner`, which can be applied to your functions to restrict their use to
 * the owner.
 */
abstract contract Ownable is Context {
    address private _owner;

    event OwnershipTransferred(address indexed previousOwner, address indexed newOwner);

    /**
     * @dev Initializes the contract setting the deployer as the initial owner.
     */
    constructor() {
        _transferOwnership(_msgSender());
    }

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        _checkOwner();
        _;
    }

    /**
     * @dev Returns the address of the current owner.
     */
    function owner() public view virtual returns (address) {
        return _owner;
    }

    /**
     * @dev Throws if the sender is not the owner.
     */
    function _checkOwner() internal view virtual {
        require(owner() == _msgSender(), "Ownable: caller is not the owner");
    }

    /**
     * @dev Leaves the contract without owner. It will not be possible to call
     * `onlyOwner` functions anymore. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby removing any functionality that is only available to the owner.
     */
    function renounceOwnership() public virtual onlyOwner {
        _transferOwnership(address(0));
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Can only be called by the current owner.
     */
    function transferOwnership(address newOwner) public virtual onlyOwner {
        require(newOwner != address(0), "Ownable: new owner is the zero address");
        _transferOwnership(newOwner);
    }

    /**
     * @dev Transfers ownership of the contract to a new account (`newOwner`).
     * Internal function without access restriction.
     */
    function _transferOwnership(address newOwner) internal virtual {
        address oldOwner = _owner;
        _owner = newOwner;
        emit OwnershipTransferred(oldOwner, newOwner);
    }
}

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



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts v4.4.1 (utils/Context.sol)

pragma solidity ^0.8.0;

/**
 * @dev Provides information about the current execution context, including the
 * sender of the transaction and its data. While these are generally available
 * via msg.sender and msg.data, they should not be accessed in such a direct
 * manner, since when dealing with meta-transactions the account sending and
 * paying for execution may not be the actual sender (as far as an application
 * is concerned).
 *
 * This contract is only required for intermediate, library-like contracts.
 */
abstract contract Context {
    function _msgSender() internal view virtual returns (address) {
        return msg.sender;
    }

    function _msgData() internal view virtual returns (bytes calldata) {
        return msg.data;
    }
}

// File: contracts/FeeManager.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;

import '@openzeppelin/contracts/access/Ownable.sol';

import './interfaces/IFeeManager.sol';
import './utils/Splits.sol';
import './utils/Version.sol';

/// @title template NFT contract
contract FeeManager is IFeeManager, Ownable, Splits, Version(1) {

  uint256 public fee;
  uint256 public commissionBPS;

  constructor(uint256 _fee, uint256 _commissionBPS) {
    fee = _fee;
    commissionBPS = _commissionBPS;
  }

  function setFees(uint256 _fee, uint256 _commissionBPS) external onlyOwner {
    fee = _fee;
    commissionBPS = _commissionBPS;
  }

  function _calculateFee(uint256 /* salePrice */, uint256 quantity) private view returns (uint256) {
    return fee == 0 ? 0 : fee * quantity;
  }

  function _calculateCommission(uint256 salePrice, uint256 quantity) private view returns (uint256) {
    return commissionBPS == 0 ? 0 : (salePrice * commissionBPS / 100_00) * quantity;
  }

  function calculateFees(uint256 salePrice, uint256 quantity) external view returns (uint256 fees, uint256 commission) {
    return (
      _calculateFee(salePrice, quantity),
      _calculateCommission(salePrice, quantity)
    );
  }

  function recipient() external view returns (address) {
    return address(this);
  }

  function withdraw() external onlyOwner {
    if ( splitWallet != address(0) ) {
      revert SplitsAreActive();
    }
    (bool success, ) = payable(msg.sender).call{value: address(this).balance}("");
    if ( ! success ) {
      revert  WithdrawFailed();
    }
  }

  receive() external payable { }
}

// File: contracts/interfaces/IFeeManager.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.0;

interface IFeeManager {

  error SplitsAreActive();

  error WithdrawFailed();

  function setFees(uint256 _fee, uint256 _commissionBPS) external;

  function calculateFees(uint256 salePrice, uint256 quantity) external view returns (uint256 fee, uint256 commission);

  function recipient() external view returns (address);

}

// File: contracts/splits/interfaces/ISplitMain.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8.4;

import {ERC20} from "solmate/src/tokens/ERC20.sol";

/**
 * @title ISplitMain
 * @author 0xSplits <will@0xSplits.xyz>
 */
interface ISplitMain {
  /**
   * FUNCTIONS
   */

  function walletImplementation() external returns (address);

  function createSplit(
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address controller
  ) external returns (address);

  function predictImmutableSplitAddress(
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee
  ) external view returns (address);

  function updateSplit(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee
  ) external;

  function transferControl(address split, address newController) external;

  function cancelControlTransfer(address split) external;

  function acceptControl(address split) external;

  function makeSplitImmutable(address split) external;

  function distributeETH(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function updateAndDistributeETH(
    address split,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function distributeERC20(
    address split,
    ERC20 token,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function updateAndDistributeERC20(
    address split,
    ERC20 token,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) external;

  function withdraw(
    address account,
    uint256 withdrawETH,
    ERC20[] calldata tokens
  ) external;

  /**
   * EVENTS
   */

  /** @notice emitted after each successful split creation
   *  @param split Address of the created split
   */
  event CreateSplit(address indexed split);

  /** @notice emitted after each successful split update
   *  @param split Address of the updated split
   */
  event UpdateSplit(address indexed split);

  /** @notice emitted after each initiated split control transfer
   *  @param split Address of the split control transfer was initiated for
   *  @param newPotentialController Address of the split's new potential controller
   */
  event InitiateControlTransfer(
    address indexed split,
    address indexed newPotentialController
  );

  /** @notice emitted after each canceled split control transfer
   *  @param split Address of the split control transfer was canceled for
   */
  event CancelControlTransfer(address indexed split);

  /** @notice emitted after each successful split control transfer
   *  @param split Address of the split control was transferred for
   *  @param previousController Address of the split's previous controller
   *  @param newController Address of the split's new controller
   */
  event ControlTransfer(
    address indexed split,
    address indexed previousController,
    address indexed newController
  );

  /** @notice emitted after each successful ETH balance split
   *  @param split Address of the split that distributed its balance
   *  @param amount Amount of ETH distributed
   *  @param distributorAddress Address to credit distributor fee to
   */
  event DistributeETH(
    address indexed split,
    uint256 amount,
    address indexed distributorAddress
  );

  /** @notice emitted after each successful ERC20 balance split
   *  @param split Address of the split that distributed its balance
   *  @param token Address of ERC20 distributed
   *  @param amount Amount of ERC20 distributed
   *  @param distributorAddress Address to credit distributor fee to
   */
  event DistributeERC20(
    address indexed split,
    ERC20 indexed token,
    uint256 amount,
    address indexed distributorAddress
  );

  /** @notice emitted after each successful withdrawal
   *  @param account Address that funds were withdrawn to
   *  @param ethAmount Amount of ETH withdrawn
   *  @param tokens Addresses of ERC20s withdrawn
   *  @param tokenAmounts Amounts of corresponding ERC20s withdrawn
   */
  event Withdrawal(
    address indexed account,
    uint256 ethAmount,
    ERC20[] tokens,
    uint256[] tokenAmounts
  );
}

// File: contracts/utils/Splits.sol



// SPDX-License-Identifier: GPL-3.0-or-later
pragma solidity ^0.8;

import {ERC20} from "solmate/src/tokens/ERC20.sol";
import "../splits/interfaces/ISplitMain.sol";
import "@openzeppelin/contracts/access/Ownable.sol";

abstract contract Splits is Ownable {

  address public splitMain;
  address public splitWallet;

  function createSplit(
    address _splitMain,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee
  ) public virtual onlyOwner {
    require(splitWallet == address(0), "Split already created");
    splitMain = _splitMain;
    splitWallet = ISplitMain(splitMain).createSplit(
      accounts,
      percentAllocations,
      distributorFee,
      msg.sender
    );
  }

  function distributeETH(
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) public virtual requireSplit {
    _transferETHToSplit();
    ISplitMain(splitMain).distributeETH(
      splitWallet,
      accounts,
      percentAllocations,
      distributorFee,
      distributorAddress
    );
  }

  function distributeERC20(
    ERC20 token,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) public virtual requireSplit {
    _transferERC20ToSplit(token);
    ISplitMain(splitMain).distributeERC20(
      splitWallet,
      token,
      accounts,
      percentAllocations,
      distributorFee,
      distributorAddress
    );
  }

  function distributeAndWithdraw(
    address account,
    uint256 withdrawETH,
    ERC20[] memory tokens,
    address[] calldata accounts,
    uint32[] calldata percentAllocations,
    uint32 distributorFee,
    address distributorAddress
  ) public virtual requireSplit {
    if (withdrawETH != 0) {
      distributeETH(
        accounts,
        percentAllocations,
        distributorFee,
        distributorAddress
      );
    }

    for (uint256 i = 0; i < tokens.length; ++i) {
      distributeERC20(
        tokens[i],
        accounts,
        percentAllocations,
        distributorFee,
        distributorAddress
      );
    }

    _withdraw(account, withdrawETH, tokens);
  }

  function transferToSplit(uint256 transferETH, ERC20[] memory tokens)
    public
    virtual
    requireSplit
  {
    if (transferETH != 0) {
      _transferETHToSplit();
    }

    for (uint256 i = 0; i < tokens.length; ++i) {
      _transferERC20ToSplit(tokens[i]);
    }
  }

  function _transferETHToSplit() internal virtual {
    (bool success, ) = splitWallet.call{value: address(this).balance}("");
    require(success, "Could not transfer ETH to split");
  }

  function _transferERC20ToSplit(ERC20 token) internal virtual {
    uint256 balance = token.balanceOf(address(this));
    token.transfer(splitWallet, balance);
  }

  function _withdraw(
    address account,
    uint256 withdrawETH,
    ERC20[] memory tokens
  ) internal virtual {
    ISplitMain(splitMain).withdraw(
      account,
      withdrawETH,
      tokens
    );
  }

  modifier requireSplit() {
    require(splitWallet != address(0), "Split not created yet");
    _;
  }
}

// File: contracts/utils/Version.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.10;

contract Version {
  uint32 private immutable _version;

  /// @notice The version of the contract
  /// @return The version ID of this contract implementation
  function contractVersion() external view returns (uint32) {
      return _version;
  }

  constructor(uint32 version) {
    _version = version;
  }
}
// File: solmate/src/tokens/ERC20.sol



// SPDX-License-Identifier: AGPL-3.0-only
pragma solidity >=0.8.0;

/// @notice Modern and gas efficient ERC20 + EIP-2612 implementation.
/// @author Solmate (https://github.com/transmissions11/solmate/blob/main/src/tokens/ERC20.sol)
/// @author Modified from Uniswap (https://github.com/Uniswap/uniswap-v2-core/blob/master/contracts/UniswapV2ERC20.sol)
/// @dev Do not manually set balances without updating totalSupply, as the sum of all user balances must not exceed it.
abstract contract ERC20 {
    /*//////////////////////////////////////////////////////////////
                                 EVENTS
    //////////////////////////////////////////////////////////////*/

    event Transfer(address indexed from, address indexed to, uint256 amount);

    event Approval(address indexed owner, address indexed spender, uint256 amount);

    /*//////////////////////////////////////////////////////////////
                            METADATA STORAGE
    //////////////////////////////////////////////////////////////*/

    string public name;

    string public symbol;

    uint8 public immutable decimals;

    /*//////////////////////////////////////////////////////////////
                              ERC20 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 public totalSupply;

    mapping(address => uint256) public balanceOf;

    mapping(address => mapping(address => uint256)) public allowance;

    /*//////////////////////////////////////////////////////////////
                            EIP-2612 STORAGE
    //////////////////////////////////////////////////////////////*/

    uint256 internal immutable INITIAL_CHAIN_ID;

    bytes32 internal immutable INITIAL_DOMAIN_SEPARATOR;

    mapping(address => uint256) public nonces;

    /*//////////////////////////////////////////////////////////////
                               CONSTRUCTOR
    //////////////////////////////////////////////////////////////*/

    constructor(
        string memory _name,
        string memory _symbol,
        uint8 _decimals
    ) {
        name = _name;
        symbol = _symbol;
        decimals = _decimals;

        INITIAL_CHAIN_ID = block.chainid;
        INITIAL_DOMAIN_SEPARATOR = computeDomainSeparator();
    }

    /*//////////////////////////////////////////////////////////////
                               ERC20 LOGIC
    //////////////////////////////////////////////////////////////*/

    function approve(address spender, uint256 amount) public virtual returns (bool) {
        allowance[msg.sender][spender] = amount;

        emit Approval(msg.sender, spender, amount);

        return true;
    }

    function transfer(address to, uint256 amount) public virtual returns (bool) {
        balanceOf[msg.sender] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(msg.sender, to, amount);

        return true;
    }

    function transferFrom(
        address from,
        address to,
        uint256 amount
    ) public virtual returns (bool) {
        uint256 allowed = allowance[from][msg.sender]; // Saves gas for limited approvals.

        if (allowed != type(uint256).max) allowance[from][msg.sender] = allowed - amount;

        balanceOf[from] -= amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(from, to, amount);

        return true;
    }

    /*//////////////////////////////////////////////////////////////
                             EIP-2612 LOGIC
    //////////////////////////////////////////////////////////////*/

    function permit(
        address owner,
        address spender,
        uint256 value,
        uint256 deadline,
        uint8 v,
        bytes32 r,
        bytes32 s
    ) public virtual {
        require(deadline >= block.timestamp, "PERMIT_DEADLINE_EXPIRED");

        // Unchecked because the only math done is incrementing
        // the owner's nonce which cannot realistically overflow.
        unchecked {
            address recoveredAddress = ecrecover(
                keccak256(
                    abi.encodePacked(
                        "\x19\x01",
                        DOMAIN_SEPARATOR(),
                        keccak256(
                            abi.encode(
                                keccak256(
                                    "Permit(address owner,address spender,uint256 value,uint256 nonce,uint256 deadline)"
                                ),
                                owner,
                                spender,
                                value,
                                nonces[owner]++,
                                deadline
                            )
                        )
                    )
                ),
                v,
                r,
                s
            );

            require(recoveredAddress != address(0) && recoveredAddress == owner, "INVALID_SIGNER");

            allowance[recoveredAddress][spender] = value;
        }

        emit Approval(owner, spender, value);
    }

    function DOMAIN_SEPARATOR() public view virtual returns (bytes32) {
        return block.chainid == INITIAL_CHAIN_ID ? INITIAL_DOMAIN_SEPARATOR : computeDomainSeparator();
    }

    function computeDomainSeparator() internal view virtual returns (bytes32) {
        return
            keccak256(
                abi.encode(
                    keccak256("EIP712Domain(string name,string version,uint256 chainId,address verifyingContract)"),
                    keccak256(bytes(name)),
                    keccak256("1"),
                    block.chainid,
                    address(this)
                )
            );
    }

    /*//////////////////////////////////////////////////////////////
                        INTERNAL MINT/BURN LOGIC
    //////////////////////////////////////////////////////////////*/

    function _mint(address to, uint256 amount) internal virtual {
        totalSupply += amount;

        // Cannot overflow because the sum of all user
        // balances can't exceed the max uint256 value.
        unchecked {
            balanceOf[to] += amount;
        }

        emit Transfer(address(0), to, amount);
    }

    function _burn(address from, uint256 amount) internal virtual {
        balanceOf[from] -= amount;

        // Cannot underflow because a user's balance
        // will never be larger than the total supply.
        unchecked {
            totalSupply -= amount;
        }

        emit Transfer(from, address(0), amount);
    }
}