// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.4) (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;
    }

    function _contextSuffixLength() internal view virtual returns (uint256) {
        return 0;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "./IAuthorizationUtilsV0.sol";
import "./ITemplateUtilsV0.sol";
import "./IWithdrawalUtilsV0.sol";

interface IAirnodeRrpV0 is
    IAuthorizationUtilsV0,
    ITemplateUtilsV0,
    IWithdrawalUtilsV0
{
    event SetSponsorshipStatus(
        address indexed sponsor,
        address indexed requester,
        bool sponsorshipStatus
    );

    event MadeTemplateRequest(
        address indexed airnode,
        bytes32 indexed requestId,
        uint256 requesterRequestCount,
        uint256 chainId,
        address requester,
        bytes32 templateId,
        address sponsor,
        address sponsorWallet,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        bytes parameters
    );

    event MadeFullRequest(
        address indexed airnode,
        bytes32 indexed requestId,
        uint256 requesterRequestCount,
        uint256 chainId,
        address requester,
        bytes32 endpointId,
        address sponsor,
        address sponsorWallet,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        bytes parameters
    );

    event FulfilledRequest(
        address indexed airnode,
        bytes32 indexed requestId,
        bytes data
    );

    event FailedRequest(
        address indexed airnode,
        bytes32 indexed requestId,
        string errorMessage
    );

    function setSponsorshipStatus(address requester, bool sponsorshipStatus)
        external;

    function makeTemplateRequest(
        bytes32 templateId,
        address sponsor,
        address sponsorWallet,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        bytes calldata parameters
    ) external returns (bytes32 requestId);

    function makeFullRequest(
        address airnode,
        bytes32 endpointId,
        address sponsor,
        address sponsorWallet,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        bytes calldata parameters
    ) external returns (bytes32 requestId);

    function fulfill(
        bytes32 requestId,
        address airnode,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        bytes calldata data,
        bytes calldata signature
    ) external returns (bool callSuccess, bytes memory callData);

    function fail(
        bytes32 requestId,
        address airnode,
        address fulfillAddress,
        bytes4 fulfillFunctionId,
        string calldata errorMessage
    ) external;

    function sponsorToRequesterToSponsorshipStatus(
        address sponsor,
        address requester
    ) external view returns (bool sponsorshipStatus);

    function requesterToRequestCountPlusOne(address requester)
        external
        view
        returns (uint256 requestCountPlusOne);

    function requestIsAwaitingFulfillment(bytes32 requestId)
        external
        view
        returns (bool isAwaitingFulfillment);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IAuthorizationUtilsV0 {
    function checkAuthorizationStatus(
        address[] calldata authorizers,
        address airnode,
        bytes32 requestId,
        bytes32 endpointId,
        address sponsor,
        address requester
    ) external view returns (bool status);

    function checkAuthorizationStatuses(
        address[] calldata authorizers,
        address airnode,
        bytes32[] calldata requestIds,
        bytes32[] calldata endpointIds,
        address[] calldata sponsors,
        address[] calldata requesters
    ) external view returns (bool[] memory statuses);
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface ITemplateUtilsV0 {
    event CreatedTemplate(
        bytes32 indexed templateId,
        address airnode,
        bytes32 endpointId,
        bytes parameters
    );

    function createTemplate(
        address airnode,
        bytes32 endpointId,
        bytes calldata parameters
    ) external returns (bytes32 templateId);

    function getTemplates(bytes32[] calldata templateIds)
        external
        view
        returns (
            address[] memory airnodes,
            bytes32[] memory endpointIds,
            bytes[] memory parameters
        );

    function templates(bytes32 templateId)
        external
        view
        returns (
            address airnode,
            bytes32 endpointId,
            bytes memory parameters
        );
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

interface IWithdrawalUtilsV0 {
    event RequestedWithdrawal(
        address indexed airnode,
        address indexed sponsor,
        bytes32 indexed withdrawalRequestId,
        address sponsorWallet
    );

    event FulfilledWithdrawal(
        address indexed airnode,
        address indexed sponsor,
        bytes32 indexed withdrawalRequestId,
        address sponsorWallet,
        uint256 amount
    );

    function requestWithdrawal(address airnode, address sponsorWallet) external;

    function fulfillWithdrawal(
        bytes32 withdrawalRequestId,
        address airnode,
        address sponsor
    ) external payable;

    function sponsorToWithdrawalRequestCount(address sponsor)
        external
        view
        returns (uint256 withdrawalRequestCount);
}

// SPDX-License-Identifier: MIT
// OpenZeppelin Contracts (last updated v4.9.0) (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. Can only be called by the current owner.
     *
     * NOTE: Renouncing ownership will leave the contract without an owner,
     * thereby disabling 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);
    }
}

// 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;
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;

import "../interfaces/IAirnodeRrpV0.sol";

/// @title The contract to be inherited to make Airnode RRP requests
contract RrpRequesterV0 {
    IAirnodeRrpV0 public immutable airnodeRrp;

    /// @dev Reverts if the caller is not the Airnode RRP contract.
    /// Use it as a modifier for fulfill and error callback methods, but also
    /// check `requestId`.
    modifier onlyAirnodeRrp() {
        require(msg.sender == address(airnodeRrp), "Caller not Airnode RRP");
        _;
    }

    /// @dev Airnode RRP address is set at deployment and is immutable.
    /// RrpRequester is made its own sponsor by default. RrpRequester can also
    /// be sponsored by others and use these sponsorships while making
    /// requests, i.e., using this default sponsorship is optional.
    /// @param _airnodeRrp Airnode RRP contract address
    constructor(address _airnodeRrp) {
        airnodeRrp = IAirnodeRrpV0(_airnodeRrp);
        IAirnodeRrpV0(_airnodeRrp).setSponsorshipStatus(address(this), true);
    }
}

// SPDX-License-Identifier: MIT
pragma solidity ^0.8.19;

import "@openzeppelin/contracts/access/Ownable.sol";
import "@openzeppelin/contracts/security/ReentrancyGuard.sol";
import "@api3/airnode-protocol/contracts/rrp/requesters/RrpRequesterV0.sol";

contract SpinOfWealth is ReentrancyGuard, RrpRequesterV0, Ownable {
    struct UserProfile {
        string nickname;
        string profilePicture;
        string description;
        uint256[] createdPools;
        uint256[] participatedPools;
    }

    struct Project {
        address owner;
        string name;
        string image;
        uint256 minAmount;
        uint256 maxAmount;
        uint256 startTime;
        uint256 endTime;
        uint256 totalAmount;
        address[] participants;
        bool isActive;
    }

    mapping(address => UserProfile) public userProfiles;
    mapping(uint256 => Project) public projects;
    mapping(uint256 => address[]) public projectWinners; // New mapping to store winners for each project
    uint256[] public projectIds;
    uint256 public projectCount;

    address public feeAddress;
    uint256 public creationFee = 0.001 ether; // Static fee for creating a project
    uint256 public constant contributionFeePercentage = 1; // Static 1% fee for contributions

    address public airnode;
    bytes32 public endpointIdUint256Array;
    address public sponsorWallet;

    mapping(bytes32 => uint256) public requestIdToProjectId;

    event ProjectCreated(uint256 projectId, address owner, string name, string image, uint256 minAmount, uint256 maxAmount, uint256 startTime, uint256 endTime);
    event ContributionReceived(uint256 projectId, address contributor, uint256 amount);
    event FundsDistributed(uint256 projectId, address[] winners, uint256 ownerAmount);
    event FeesCollected(address indexed from, uint256 amount);
    event FeeAddressChanged(address indexed oldAddress, address indexed newAddress);
    event RequestedRandomness(bytes32 indexed requestId, uint256 indexed projectId);
    event SponsorWalletSet(address sponsorWallet);
    event RefundProcessed(address participant, uint256 amount);
    event DebugLog(string message);

    constructor(
        address _feeAddress,
        address _airnodeRrp,
        address _airnode,
        bytes32 _endpointIdUint256Array
    ) RrpRequesterV0(_airnodeRrp) {
        require(_feeAddress != address(0), "Invalid fee address");
        feeAddress = _feeAddress;
        projectCount = 0;

        airnode = _airnode;
        endpointIdUint256Array = _endpointIdUint256Array;
    }

    function setFeeAddress(address _newFeeAddress) external onlyOwner {
        require(_newFeeAddress != address(0), "Invalid fee address");
        address oldAddress = feeAddress;
        feeAddress = _newFeeAddress;
        emit FeeAddressChanged(oldAddress, _newFeeAddress);
    }

    function setSponsorWallet(address _sponsorWallet) external onlyOwner {
        require(_sponsorWallet != address(0), "Invalid sponsor wallet address");
        sponsorWallet = _sponsorWallet;
        emit SponsorWalletSet(_sponsorWallet);
    }

    function createProject(string memory _name, string memory _image, uint256 _minAmount, uint256 _maxAmount, uint256 _duration) external payable returns (uint256) {
        require(msg.value >= creationFee, "Minimum fee of 0.001 ETH required to create a project");
        require(_minAmount > 0 && _maxAmount > _minAmount, "Invalid amount ranges");
        require(_duration > 0, "Invalid duration");

        (bool feeSent, ) = feeAddress.call{value: creationFee}("");
        require(feeSent, "Fee transfer failed");

        uint256 startTime = block.timestamp;
        uint256 endTime = startTime + _duration;

        Project storage newProject = projects[projectCount];
        newProject.owner = msg.sender;
        newProject.name = _name;
        newProject.image = _image;
        newProject.minAmount = _minAmount;
        newProject.maxAmount = _maxAmount;
        newProject.startTime = startTime;
        newProject.endTime = endTime;
        newProject.totalAmount = msg.value - creationFee;
        newProject.isActive = true;

        userProfiles[msg.sender].createdPools.push(projectCount);
        projectIds.push(projectCount);
        projectCount++;

        emit ProjectCreated(projectCount - 1, msg.sender, _name, _image, _minAmount, _maxAmount, startTime, endTime);
        emit FeesCollected(msg.sender, creationFee);

        return projectCount - 1;
    }

    function contribute(uint256 _projectId) external payable {
        Project storage project = projects[_projectId];
        require(project.isActive, "Project is not active");
        require(block.timestamp >= project.startTime && block.timestamp <= project.endTime, "Contribution period has ended");
        require(msg.value >= project.minAmount && msg.value <= project.maxAmount, "Contribution amount is out of bounds");

        uint256 feeAmount = (msg.value * contributionFeePercentage) / 100;
        uint256 contribution = msg.value - feeAmount;

        (bool feeSent, ) = feeAddress.call{value: feeAmount}("");
        require(feeSent, "Fee transfer failed");

        project.totalAmount += contribution;
        project.participants.push(msg.sender);

        userProfiles[msg.sender].participatedPools.push(_projectId);

        emit ContributionReceived(_projectId, msg.sender, contribution);
        emit FeesCollected(msg.sender, feeAmount);
    }

    function distributeFunds(uint256 _projectId) external nonReentrant {
        Project storage project = projects[_projectId];
        require(project.isActive, "Project is not active");
        require(block.timestamp > project.endTime, "Project is still ongoing");
        require(project.participants.length >= 10, "Not enough participants");

        project.isActive = false;

        requestRandomness(_projectId);
    }

    function requestRandomness(uint256 _projectId) internal {
        bytes32 requestId = airnodeRrp.makeFullRequest(
            airnode,
            endpointIdUint256Array,
            address(this),
            sponsorWallet,
            address(this),
            this.fulfill.selector,
            abi.encode(bytes32("1u"), bytes32("size"), uint256(9))
        );

        requestIdToProjectId[requestId] = _projectId;
        emit RequestedRandomness(requestId, _projectId);
    }

    function fulfill(bytes32 requestId, bytes calldata data) external onlyAirnodeRrp {
        require(msg.sender == address(airnodeRrp), "Sender not authorized");

        uint256[] memory randomWords = abi.decode(data, (uint256[]));
        uint256 projectId = requestIdToProjectId[requestId];
        Project storage project = projects[projectId];

        emit DebugLog("Fulfillment started");
        emit DebugLog("Random words received");

        uint256 prizeAmount = project.totalAmount / 10;
        uint256 feeAmount = prizeAmount / 100;
        address[] memory winners = new address[](9);
        uint256[] memory randomWordsCopy = new uint256[](randomWords.length);
        for (uint256 i = 0; i < randomWords.length; i++) {
            randomWordsCopy[i] = randomWords[i];
        }

        for (uint256 i = 0; i < 9; i++) {
            uint256 randomIndex = randomWordsCopy[0] % project.participants.length;
            address winner = project.participants[randomIndex];
            winners[i] = winner;

            (bool feeSent, ) = feeAddress.call{value: feeAmount}("");
            require(feeSent, "Fee transfer failed");

            (bool winnerSent, ) = winner.call{value: prizeAmount - feeAmount}("");
            require(winnerSent, "Winner transfer failed");

            randomWordsCopy[0] = uint256(keccak256(abi.encodePacked(randomWordsCopy[0], i)));

            emit DebugLog("Winner selected and transfer done");
        }

        uint256 ownerAmount = project.totalAmount / 10;
        feeAmount = ownerAmount / 100;

        (bool ownerFeeSent, ) = feeAddress.call{value: feeAmount}("");
        require(ownerFeeSent, "Owner fee transfer failed");

        (bool ownerSent, ) = project.owner.call{value: ownerAmount - feeAmount}("");
        require(ownerSent, "Owner transfer failed");

        // Store the winners for the project
        projectWinners[projectId] = winners;

        emit FundsDistributed(projectId, winners, ownerAmount - feeAmount);
        emit FeesCollected(address(this), feeAmount * 10);
    }

    function getUserPools(address _user) external view returns (uint256[] memory createdPools, uint256[] memory participatedPools) {
        UserProfile storage profile = userProfiles[_user];
        return (profile.createdPools, profile.participatedPools);
    }

    function getProjectDetails(uint256 _projectId) external view returns (address owner, string memory name, string memory image, uint256 minAmount, uint256 maxAmount, uint256 startTime, uint256 endTime, uint256 totalAmount, bool isActive, address[] memory participants) {
        Project storage project = projects[_projectId];
        return (project.owner, project.name, project.image, project.minAmount, project.maxAmount, project.startTime, project.endTime, project.totalAmount, project.isActive, project.participants);
    }

    function getAllProjectIds() external view returns (uint256[] memory) {
        return projectIds;
    }

    function getWinners(uint256 _projectId) external view returns (address[] memory) {
        return projectWinners[_projectId];
    }

    function refundParticipants(uint256 _projectId) external nonReentrant {
        Project storage project = projects[_projectId];
        require(block.timestamp > project.endTime, "Project is still ongoing");
        require(project.participants.length < 9, "Enough participants to proceed");
        require(project.isActive, "Project is not active");

        project.isActive = false;

        for (uint256 i = 0; i < project.participants.length; i++) {
            (bool sent, ) = project.participants[i].call{value: project.minAmount}("");
            require(sent, "Refund failed");
            emit RefundProcessed(project.participants[i], project.minAmount);
        }
    }
}

{
  "compilationTarget": {
    "contracts/SpinOfWealth.sol": "SpinOfWealth"
  },
  "evmVersion": "paris",
  "libraries": {},
  "metadata": {
    "bytecodeHash": "ipfs"
  },
  "optimizer": {
    "enabled": true,
    "runs": 200
  },
  "remappings": []
}