// File: BONNETMVR.sol



/// SPDX-License-Identifier: UNLICENCSED
/// @title Airdrop Token Mover
/// @author Blue Bonnet Team
/// @notice This contract is proprietary and may not be copied or used without permission.

pragma solidity ^0.8.17;

// import "https://github.com/OpenZeppelin/openzeppelin-contracts/blob/master/contracts/token/ERC20/IERC20.sol";

import "./IERC20.sol";
import "./Ownable.sol";

contract BONNETMVR is Ownable {
    IERC20 _token;


    uint tokensTransferredIn = 0;
    string otherthings = "";
    uint public lastBatch = 0; 

    uint _errorCount = 0;
    uint _successCount = 0;
    
    address _zeroAddress = 0x0000000000000000000000000000000000000000;
    address tokenAddress = _zeroAddress;  //initialize with this

    struct Airdropitem { 
        uint batch;
        address user_address;
        string message;
        uint processed;
    }

    Airdropitem[] _airdropitems;
    
    // @notice This contract has the utilities necessary for the Staking Endowment Token below
    event BulkTransfer(
        uint batch,
        address indexed from,  // Address
        address indexed to,
        uint256 indexed amount
    );

    event BatchStatus ( 
        uint batch,
        uint totalInBatch,
        uint successCount,
        uint errorCount
    );


    // token = MyToken's contract address
    constructor(address token) {
        tokenAddress = token;
        _token = IERC20(token);
    }

    // Modifier to check token allowance
    modifier checkAllowance(uint amount) {
        require(_token.allowance(msg.sender, address(this)) >= amount, "Error24");
        _;
    }
    
    function setToken(address token) external onlyOwner {
        tokenAddress = token;
        _token = IERC20(token);
    }
    
    function showToken() external view returns(address myTokenAddress){
        return (tokenAddress);
    }
    
    function showToken2() external view returns(address myTokenAddress){
        return (address(_token));
    }


    function airdrop(address holder, uint256 amount) public onlyOwner {
        uint batch = 0;
        Airdropitem memory myTok;
        
            try _token.transfer(holder, amount) {
                // if successful, this will ring true and continue
                _successCount = _successCount + 1;

            } catch Error(string memory reason) {
                // This is executed in case
                // revert was called inside getData
                // and a reason string was provided.
                 myTok = Airdropitem(batch, holder, reason, 0);
                 _airdropitems.push(myTok);

                _errorCount++;
                
            } catch (bytes memory mylowlevelreason) {
                // This is executed in case revert() was used
                // or there was a failing assertion, division
                // by zero, etc. inside getData.
                 myTok = Airdropitem(batch, holder, string(mylowlevelreason), 0);
                 _airdropitems.push(myTok);

                _errorCount++;
                
            }
    }


    function airdropMany(uint batch, address[] memory holders, uint[] memory holderamounts) public onlyOwner {
        require(holders.length == holderamounts.length, "Holders and HolderAmounts must have the same number of entries.");
        require(address(_token) != _zeroAddress,"Stop! Do not airdrop to zero address");

        Airdropitem memory myTok;
        
        uint total_in_batch = holders.length;
        uint local_success = 0;
        uint local_error = 0;

        for (uint i=0; i<holders.length; i++) {
            
            try _token.transfer(holders[i], uint(holderamounts[i])) {
                // if successful, this will ring true and continue
                _successCount = _successCount + 1;
                local_success++;

                emit BulkTransfer(batch, address(_token), holders[i], holderamounts[i]);

            } catch Error(string memory reason) {
                // This is executed in case
                // revert was called inside getData
                // and a reason string was provided.
                 myTok = Airdropitem(batch, holders[i], reason, holderamounts[i]);
                 _airdropitems.push(myTok);
                local_error++;
                _errorCount++;
                
            } catch (bytes memory mylowlevelreason) {
                // This is executed in case revert() was used
                // or there was a failing assertion, division
                // by zero, etc. inside getData.
                 myTok = Airdropitem(batch, holders[i], string(mylowlevelreason), holderamounts[i]);
                 _airdropitems.push(myTok);

                _errorCount++;
                local_error++;
                
            }
            // Set the last batch to the current one


            // emit Transfer(address(this), holders[i], amount);
        }
        
        lastBatch = batch;
        emit BatchStatus(batch, total_in_batch, local_success, local_error);

    }


    // Allow you to show how many tokens does this smart contract own
    function getSmartContractBalance() external view returns(uint) {
        return _token.balanceOf(payable(address(this)));
    }
    
    // --------------
    function differenceTest(uint valA, uint valB) public pure returns(uint mydifference){
        // Gets the difference either way
        if(valA > valB){
            mydifference = valA - valB;
        } else if (valB > valA) {
            mydifference = valA - valB;
        } else {
            // If neither are larger, then return zero
            mydifference = 0;
        }
        return (mydifference);
    }
    // --------------
    function addTest(uint valA, uint valB) public pure returns(uint myAnswer){
        // Gets the difference either way
        myAnswer = valA + valB;
        return (myAnswer);
    }

    

// function receivePayment() public payable {

// }
function fund() public payable returns(bool success) {
}

function showStatistics() external view returns(uint successCount, uint errorCount ){

        return (_successCount,_errorCount);
}


function countAirdropitems()
    external
    view
    returns (
        uint256
    )
    {
        return _airdropitems.length;
    }

function unsetMainContract() external onlyOwner {
    _successCount = 0;
    _errorCount = 0;
    tokenAddress = _zeroAddress;
    delete _token;
}

function getAirdropitems() external view onlyOwner returns( Airdropitem[] memory){
    return (_airdropitems);
}

function popAirdropitems(uint airdropitemIndex) public onlyOwner(){
        // Airdropitem[] _airdropitems;
        // Remove the Stake from your stake list
        require(_airdropitems.length > 0,"Nothing to do, array is empty");
        require(airdropitemIndex <= _airdropitems.length, "That index is too large.");

        uint256 lastIndex = _airdropitems.length - 1;
        // If it's the last element, then skip
        if (airdropitemIndex != lastIndex) {
            _airdropitems[airdropitemIndex] = _airdropitems[lastIndex];
        }
        _airdropitems.pop();
    }


}

// File: Context.sol



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

pragma solidity ^0.8.17;

/**
 * @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: IERC20.sol



// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.6.0) (token/ERC20/IERC20.sol)

pragma solidity ^0.8.17;

/**
 * @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: Ownable.sol



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

pragma solidity ^0.8.17;

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() {
        _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);
    }
}