// 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/bridge/DepositManager.sol

//SPDX-License-Identifier: MIT

pragma solidity 0.8.19;


interface IDepositManagerStorage {
    function bulkSend(address[] calldata token, address[] calldata user, uint[] calldata amount) external;
}

interface IDepositManagerState {
    function addState(address token, address user, uint amount) external;
}

contract DepositManager {
    address public owner;
    IDepositManagerStorage public _managerStorage;
    IDepositManagerState public _managerState;
    uint256 public _fee;

    constructor(uint fee){
        _fee = fee;
        owner = msg.sender;
    }

    event DepositERC20(address, address, uint);
    event DepositEther(address, uint);

    modifier onlyOwner() {
        require(msg.sender == owner, "You are not the owner!");
        _;
    }

    function depositEther() public payable {
        require(msg.value > _fee, "The amount of eth must be more than the fee");
        
        uint amount = msg.value - _fee;
        (bool sent, ) = payable(address(_managerStorage)).call{value: msg.value}("");
        require(sent, "Failed to send Ether");
        _managerState.addState(address(0), msg.sender, amount);

        emit DepositEther(msg.sender, amount);
    }

    function depositERC20(IERC20 token, uint amount) public payable {
        require(msg.value >= _fee, "Fee is not enough");
        
        (bool sent, ) = payable(address(_managerStorage)).call{value: msg.value}("");
        require(sent, "Failed to send Ether");

        (bool success) = token.transferFrom(msg.sender, address(_managerStorage), amount);
        require(success, "Failed to send token");
        _managerState.addState(address(token), msg.sender, amount);

        emit DepositERC20(msg.sender, address(token) , amount);
    }

    function setManagerStorage(IDepositManagerStorage managerStorage) public onlyOwner {
        _managerStorage = managerStorage;
    }

    function setManagerState(IDepositManagerState managerState) public onlyOwner {
        _managerState = managerState;
    }

    function setNewOwner(address newOwner) external onlyOwner {
        owner = newOwner;
    }

    function setFee(uint fee) external onlyOwner {
        _fee = fee;
    }
}