// File: Context.sol



// SPDX-License-Identifier: MIT

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: Ownable.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./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() {
        address msgSender = _msgSender();
        _owner = msgSender;
        emit OwnershipTransferred(address(0), msgSender);
    }

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

    /**
     * @dev Throws if called by any account other than the owner.
     */
    modifier onlyOwner() {
        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 {
        emit OwnershipTransferred(_owner, address(0));
        _owner = 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"
        );
        emit OwnershipTransferred(_owner, newOwner);
        _owner = newOwner;
    }
}

// File: Refund.sol



// SPDX-License-Identifier: MIT

pragma solidity ^0.8.0;

import "./Ownable.sol";

interface IOld {
    function getTokensOfOwner(address _owner)
        external
        view
        returns (uint256[] memory);
}

contract Refund is Ownable {
    uint256 public mintPrice;
    uint16 public BUYER_COUNT;
    address public banditAddress;
    mapping(uint8 => bool) public claimedFrom;

    constructor() {
        BUYER_COUNT = 647;
        mintPrice = 0.025 ether;
    }

    function setContractAddress(address _banditAddress) external onlyOwner {
        banditAddress = _banditAddress;
    }

    function setFreeCount(uint16 _buyer_count) external onlyOwner {
        BUYER_COUNT = _buyer_count;
    }

    function setClaimable(uint8[] memory _ids, bool status) external onlyOwner {
        require(_ids.length > 0, "Empty List");
        for (uint8 i = 0; i < _ids.length; i++) {
            claimedFrom[_ids[i]] = status;
        }
    }

    function getAvailableCount(address owner) public view returns (uint256) {
        uint256[] memory tokenIds = IOld(banditAddress).getTokensOfOwner(owner);

        uint256 availableCount;
        for (uint8 i; i < tokenIds.length; i++) {
            if (tokenIds[i] < BUYER_COUNT && !claimedFrom[uint8(tokenIds[i])]) {
                availableCount++;
            }
        }

        return availableCount;
    }

    function claim() external {
        require(tx.origin == msg.sender, "Only EOA");

        uint8 _numberOfTokens = uint8(getAvailableCount(msg.sender));
        uint256 totalBalance = address(this).balance;
        uint256 refundBalance = mintPrice * _numberOfTokens;
        require(totalBalance >= refundBalance, "Not Enough Fund");

        uint256[] memory tokenIds = IOld(banditAddress).getTokensOfOwner(
            msg.sender
        );

        for (uint8 i = 0; i < _numberOfTokens; i++) {
            claimedFrom[uint8(tokenIds[i])] = true;
        }

        payable(msg.sender).transfer(refundBalance);
    }

    function emergencyWithdrawAll() external onlyOwner {
        uint256 totalBalance = address(this).balance;
        payable(msg.sender).transfer(totalBalance);
    }

    receive() external payable {}
}