// File: DenkyInuClaim.sol



// SPDX-License-Identifier: MIT
pragma solidity ^0.8.17;

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

contract DenkyInuClaim is Ownable {

    event AddClaims(address depositor, uint256 createdAt, uint256 amount);
    event Claimed(address claimer, uint256 createdAt, uint256 amount);

    struct Claim {
        address claimer;
        uint256 timestamp;
        uint256 deposit; // amount of PlanB that will be locked and able to claim back after 1 week
        uint256 reward; // amount of DenkyInu that will be rewarded
    }

    address PlanBDAO = address(0xe77f82f288A6a7EB4Ac295a86FccB1F6D240499B); // PlanB
    address DenkyInu = address(0x758AF03aD0Bf7F44abe4F804eb6a90EEa9EB7C09); // Denky Inu
    uint multiplyer = 1_000_000;
    mapping(address => Claim) public register;
    uint256 startTime;
    uint256 public endTime;
    uint256 public totalRewards = 0;
    bool public isClose = false;

    constructor() {
        startTime = block.timestamp;
        endTime = startTime + 6 days; 
    }

    modifier onlyWhenClaimPeriodIsDone() {
        require(block.timestamp >= endTime, "Deposit process is still open");
        _;
    }

    modifier isRewardAvaible() {
        require(IERC20(DenkyInu).balanceOf(address(this)) >= totalRewards, "No claim rewards avaible");
        _;
        isClose = totalRewards >= IERC20(DenkyInu).balanceOf(address(this));
    }

    modifier isOpen() {
        require(isClose == false, "no more deposits are allowed");
        _;
    }

    function request(uint256 amount) external isRewardAvaible isOpen {
        uint256 balance = IERC20(DenkyInu).balanceOf(address(this));
        require(amount <= IERC20(PlanBDAO).balanceOf(msg.sender), "Please check the amounnt");
        require(block.timestamp >= startTime, "Claim time didn't not start");
        require(amount >= 10_000, "Minimal deposit amunot is 10000 PLANB");
        IERC20(PlanBDAO).transferFrom(msg.sender, address(this), amount);
        uint256 reward = amount * multiplyer;
        totalRewards += reward;
        if (totalRewards > balance) {
            reward = amount - (totalRewards - balance);
        }

        require(reward > 0, "Nothing to claim");

        register[msg.sender] = Claim(msg.sender, block.timestamp, amount, reward);
        emit AddClaims(msg.sender, block.timestamp, amount);
    }

    function claim() external onlyWhenClaimPeriodIsDone {
        Claim storage user = register[msg.sender];
        require(user.timestamp > 0, "You have not made any claim");

        
        IERC20(DenkyInu).transfer(msg.sender, user.reward);
        IERC20(PlanBDAO).transfer(msg.sender, user.deposit);
        emit Claimed(msg.sender, user.timestamp, user.reward);
        delete register[msg.sender];
    }
    
    function burnRest() external onlyOwner {
        uint256 balance = IERC20(DenkyInu).balanceOf(address(this));
        require(balance - totalRewards > 0, "Nothing to burn");
        IERC20(DenkyInu).transferFrom(address(this), 0x000000000000000000000000000000000000dEaD, balance);
    }

    function isClaimEnabled() public view returns (bool) {
        return block.timestamp >= endTime;
    }
}
// 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/token/ERC20/IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (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/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;
    }
}