// SPDX-License-Identifier: MIT
pragma solidity ^0.8.24;

import "@openzeppelin/contracts/security/ReentrancyGuard.sol";

// \\
// Created by Clodron
// If you want to create a new project, please contact me @
// info@clodron.com
// \\

contract OnChainWinPTA is ReentrancyGuard {
    address public owner;
    mapping(address => uint256) public entryCount;
    address[] public winners;
    address[] public players;
    address[] private playerSelector;
    bool public raffleStatus;
    uint256 public entryFee;
    uint256 public totalEntries;
    uint256 public prizePool;
    uint256 public targetPrizeAmount;
    uint256 public raffleStartTime;
    uint256 public raffleDuration;

    event NewEntry(address indexed player, uint256 numberOfEntries);
    event RaffleStarted(uint256 prizePool, uint256 startTime, uint256 duration);
    event RaffleEnded(address winner, uint256 prizeAmount);
    event BalanceWithdrawn(uint256 amount);

    constructor() {
        owner = msg.sender;
        raffleStatus = false;
    }

    modifier onlyOwner() {
        require(msg.sender == owner, "Just owner!");
        _;
    }

    function setupRaffle(
        uint256 _targetPrizeAmount,
        uint256 _durationInMinutes,
        uint256 _entryFee
    ) public onlyOwner {
        require(!raffleStatus, "Raffle already in progress.");
        require(
            totalEntries == 0,
            "Cannot start a new raffle until the previous one has ended."
        );
        require(_targetPrizeAmount >= _entryFee, "Invalid entry fee.");
        require(_durationInMinutes > 0, "Invalid duration.");
        require(_entryFee > 0, "Invalid entry fee.");
        require(_targetPrizeAmount > 0, "More than 0");
        require(
            _targetPrizeAmount < address(this).balance,
            "Contract balance is not enough."
        );
        targetPrizeAmount = _targetPrizeAmount;
        raffleDuration = _durationInMinutes * 1 minutes;
        entryFee = _entryFee;
        raffleStatus = true;
        raffleStartTime = block.timestamp;
        emit RaffleStarted(prizePool, raffleStartTime, raffleDuration);
    }

    function buyEntry(uint256 _numberOfEntries) public payable {
        require(raffleStatus, "Raffle has not started or finished yet.");
        require(
            prizePool < targetPrizeAmount,
            "Target prize amount has been reached."
        );
        uint256 totalCostWithCommission = (entryFee * _numberOfEntries * 105) /
            100; // %5

        require(
            msg.value >= totalCostWithCommission,
            "You need to pay much more."
        );

        uint256 commission = (totalCostWithCommission -
            (entryFee * _numberOfEntries));
        prizePool += msg.value - commission;

        if (prizePool > targetPrizeAmount) {
            prizePool = targetPrizeAmount;
        }

        for (uint256 i = 0; i < _numberOfEntries; i++) {
            playerSelector.push(msg.sender);
        }
        entryCount[msg.sender] += _numberOfEntries;
        totalEntries += _numberOfEntries;
        emit NewEntry(msg.sender, _numberOfEntries);

        if (prizePool >= targetPrizeAmount || getRemainingTimeSec() == 0) {
            raffleStatus = false;
            selectWinners();
        }
    }

    function selectWinners() private {
        if (
            raffleStatus &&
            (block.timestamp >= raffleStartTime + raffleDuration ||
                prizePool >= targetPrizeAmount)
        ) {
            raffleStatus = false;
        }

        require(
            block.timestamp >= raffleStartTime + raffleDuration ||
                prizePool >= targetPrizeAmount,
            "Raffle is not yet ready to end."
        );
        require(playerSelector.length > 0, "No entries in the raffle.");
        require(
            !raffleStatus,
            "Raffle must be ended before selecting a winner."
        );

        uint256 winnerIndex = random() % playerSelector.length;
        address winner = playerSelector[winnerIndex];

        payable(winner).transfer(prizePool);
        emit RaffleEnded(winner, prizePool);

        winners.push(winner);

        resetsContracts();
    }

    function selectWinner() public onlyOwner {
        if (
            raffleStatus &&
            (block.timestamp >= raffleStartTime + raffleDuration ||
                prizePool >= targetPrizeAmount)
        ) {
            raffleStatus = false;
        }

        require(
            block.timestamp >= raffleStartTime + raffleDuration ||
                prizePool >= targetPrizeAmount,
            "Raffle is not yet ready to end."
        );
        require(playerSelector.length > 0, "No entries in the raffle.");
        require(
            !raffleStatus,
            "Raffle must be ended before selecting a winner."
        );

        uint256 winnerIndex = random() % playerSelector.length;
        address winner = playerSelector[winnerIndex];

        payable(winner).transfer(prizePool);
        emit RaffleEnded(winner, prizePool);

        winners.push(winner);

        resetsContract();
    }

    function getPlayers() public view returns (address[] memory) {
        return playerSelector;
    }

    function getNumberOfTicketsPerPlayer(
        address player
    ) public view returns (uint256) {
        return entryCount[player];
    }

    function hardReset() public onlyOwner {
        resetsContract();
    }

    function resetsContracts() private {
        for (uint256 i = 0; i < playerSelector.length; i++) {
            entryCount[playerSelector[i]] = 0;
        }
        delete playerSelector;
        raffleStatus = false;
        totalEntries = 0;
        entryFee = 0;
        prizePool = 0;
    }

    function resetsContract() private onlyOwner {
        for (uint256 i = 0; i < playerSelector.length; i++) {
            entryCount[playerSelector[i]] = 0;
        }
        delete playerSelector;
        raffleStatus = false;
        totalEntries = 0;
        entryFee = 0;
        prizePool = 0;
    }

    function withdrawBalance() public onlyOwner {
        require(!raffleStatus, "Cannot withdraw before raffle has ended.");
        uint256 balance = address(this).balance;
        require(balance > 0, "No balance to withdraw.");
        payable(owner).transfer(balance);
        emit BalanceWithdrawn(balance);
    }

    function random() private view returns (uint256) {
        return
            uint256(
                keccak256(
                    abi.encodePacked(
                        block.timestamp,
                        block.prevrandao,
                        players.length,
                        address(this)
                    )
                )
            );
    }

    // Utility
    function getPrizePool() public view returns (uint256) {
        return prizePool;
    }

    function getTotalEntries() public view returns (uint256) {
        return totalEntries;
    }

    function initialDeposit() external payable onlyOwner {}

    function getRemainingTimeSec() public view returns (uint256) {
        if (!raffleStatus) {
            return 0;
        } else {
            uint256 endTime = raffleStartTime + raffleDuration;
            if (block.timestamp >= endTime) {
                return 0;
            } else {
                return endTime - block.timestamp;
            }
        }
    }

    function getRemainingTimeMinutes() public view returns (uint256) {
        if (!raffleStatus) {
            return 0;
        } else {
            uint256 endTime = raffleStartTime + raffleDuration;
            if (block.timestamp >= endTime) {
                return 0;
            } else {
                return (endTime - block.timestamp) / 60;
            }
        }
    }

    function getRemainingTimeHours() public view returns (uint256) {
        if (!raffleStatus) {
            return 0;
        } else {
            uint256 endTime = raffleStartTime + raffleDuration;
            if (block.timestamp >= endTime) {
                return 0;
            } else {
                return (endTime - block.timestamp) / 3600;
            }
        }
    }

    function getWinnerCount() public view returns (uint256) {
        return winners.length;
    }

    function getWinnerByIndex(uint256 index) public view returns (address) {
        require(index < winners.length, "Index out of bounds");
        return winners[index];
    }

    function getContractBalance() public view returns (uint256) {
        return address(this).balance;
    }
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (security/ReentrancyGuard.sol)

pragma solidity ^0.8.0;

/**
 * @dev Contract module that helps prevent reentrant calls to a function.
 *
 * Inheriting from `ReentrancyGuard` will make the {nonReentrant} modifier
 * available, which can be applied to functions to make sure there are no nested
 * (reentrant) calls to them.
 *
 * Note that because there is a single `nonReentrant` guard, functions marked as
 * `nonReentrant` may not call one another. This can be worked around by making
 * those functions `private`, and then adding `external` `nonReentrant` entry
 * points to them.
 *
 * TIP: If you would like to learn more about reentrancy and alternative ways
 * to protect against it, check out our blog post
 * https://blog.openzeppelin.com/reentrancy-after-istanbul/[Reentrancy After Istanbul].
 */
abstract contract ReentrancyGuard {
    // Booleans are more expensive than uint256 or any type that takes up a full
    // word because each write operation emits an extra SLOAD to first read the
    // slot's contents, replace the bits taken up by the boolean, and then write
    // back. This is the compiler's defense against contract upgrades and
    // pointer aliasing, and it cannot be disabled.

    // The values being non-zero value makes deployment a bit more expensive,
    // but in exchange the refund on every call to nonReentrant will be lower in
    // amount. Since refunds are capped to a percentage of the total
    // transaction's gas, it is best to keep them low in cases like this one, to
    // increase the likelihood of the full refund coming into effect.
    uint256 private constant _NOT_ENTERED = 1;
    uint256 private constant _ENTERED = 2;

    uint256 private _status;

    constructor() {
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Prevents a contract from calling itself, directly or indirectly.
     * Calling a `nonReentrant` function from another `nonReentrant`
     * function is not supported. It is possible to prevent this from happening
     * by making the `nonReentrant` function external, and making it call a
     * `private` function that does the actual work.
     */
    modifier nonReentrant() {
        _nonReentrantBefore();
        _;
        _nonReentrantAfter();
    }

    function _nonReentrantBefore() private {
        // On the first call to nonReentrant, _status will be _NOT_ENTERED
        require(_status != _ENTERED, "ReentrancyGuard: reentrant call");

        // Any calls to nonReentrant after this point will fail
        _status = _ENTERED;
    }

    function _nonReentrantAfter() private {
        // By storing the original value once again, a refund is triggered (see
        // https://eips.ethereum.org/EIPS/eip-2200)
        _status = _NOT_ENTERED;
    }

    /**
     * @dev Returns true if the reentrancy guard is currently set to "entered", which indicates there is a
     * `nonReentrant` function in the call stack.
     */
    function _reentrancyGuardEntered() internal view returns (bool) {
        return _status == _ENTERED;
    }
}

{
  "compilationTarget": {
    "contracts/PaidTimerOnChainWin.sol": "OnChainWinPTA"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 1000
  },
  "remappings": []
}