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const asyncHandler = require("express-async-handler");
const Room = require("../models/RoomModel");
const Question = require("../models/QuestionsModel");
const Leaderboard = require("../models/LeaderboardModel");
const collaborativeLeaderboard = require("../models/CollaborativeLeaderboardModel");
const Round = require("../models/RoundsModel");
const { getRoomLeaderBoardR1R2 } = require("../helpers/LeaderBoardPreFetch");
const Team = require("../models/TeamModel");
const User = require("../models/UserModel");
const UserQuestionModel = require("../models/UserQuestionModel");




//Random array retunrer
const randomUniqueArray = (n, array) => {
    var arr = [];
    while (arr.length < n) {
        var r = Math.floor(Math.random() * array.length) + 0;
        if (arr.indexOf(array[r]) === -1) arr.push(array[r]);
    }
    return arr;
}






//MULTI BIG FUNCTION :: INITIAL ASSIGNMENT
module.exports.roundThreeAssign = asyncHandler(async (req, res) => {
    try {
        let date = new Date();
        let roundNumber = 3;
        let round = await Round.findOne({ Round: 3 });

        if (!round.Enabled) {
            res.send("Round is disabled");
            return;
        }
        if (date >= round.StartTime && date <= round.EndTime) {

            let board = await collaborativeLeaderboard.findOne({
                $or: [{ TeamID1: req.team._id }, { TeamID2: req.team._id }]
            });

            if (board === null) {
                res.send("You are not selected for this round");
                return;
            }
            if (!board.Enabled) {
                res.send("This round is no longer available");
                return;
            }

            //ASSIGNING QUESTIONS 

            let temp = await Round.findOne({ Round: roundNumber });
            let roundQs = temp.Questions

            if (board.Questions.Unsolved.length === 0) {
                let room = await Room.findOne({ _id: board.RoomID })
                let questions = room.Questions;
                board.Questions.Unsolved = randomUniqueArray(roundQs, questions);
                console.log(board.Questions.Unsolved)
                //ASSIGNING HINTADDRESS FROM 0 TO 12
                arr = []
                let countr = 1;
                for (let i = 0; i < board.Questions.Unsolved.length; i++) {
                    var r = Math.floor(Math.random() * 5) + 1;

                    if (arr.indexOf(r) === -1) {
                        arr.push(r);
                        let question = await Question.findOne({ _id: board.Questions.Unsolved[i] });
                        let UserQuestion = await UserQuestionModel.findOne({ QuestionNumber: question.QuestionNumber, TeamID: board.TeamID1 });

                        if (UserQuestion === null) {

                            UserQuestion = new UserQuestionModel({
                                TeamID: board.TeamID1,
                                QuestionID: question._id,
                                QuestionNumber: question.QuestionNumber,
                                Question: question.Question,
                                Description: question.Description,
                                Answer: question.Answer,
                                Hint: question.Hint,
                                HintAddress: r,
                                Round: question.Round,
                                Points: question.Points,
                                RoomID: question.RoomID,
                                num: countr++
                            })

                            await UserQuestion.save();

                        }

                         question = await Question.findOne({ _id: board.Questions.Unsolved[i] });
                         UserQuestion = await UserQuestionModel.findOne({ QuestionNumber: question.QuestionNumber, TeamID: board.TeamID2 });

                        if (UserQuestion === null) {

                            UserQuestion = new UserQuestionModel({
                                TeamID: board.TeamID1,
                                QuestionID: question._id,
                                QuestionNumber: question.QuestionNumber,
                                Question: question.Question,
                                Description: question.Description,
                                Answer: question.Answer,
                                Hint: question.Hint,
                                HintAddress: r,
                                Round: question.Round,
                                Points: question.Points,
                                RoomID: question.RoomID,
                                num: countr++
                            })

                            await UserQuestion.save();

                        }

                    }
                    else {

                        i--;
                    }
                }
                await board.save();

            }

            //SENDING QUESTIONS AS RESPONSE

            let UnSqsnsID = board.Questions.Unsolved;
            let SqsnsID = board.Questions.Solved;
            let qsns = { Solved: [], Unsolved: [] }

            //for unsolved
            for (let i in UnSqsnsID) {

                let question = await UserQuestionModel.findOne({ QuestionID: UnSqsnsID[i], TeamID: req.team._id })
                if (question) {
                    let obj = {
                        QuestionNumber: question.QuestionNumber,
                        Question: question.Question,
                        Description: question.Description,
                        HintAddress: question.HintAddress,
                        Points: question.Points,
                        num: question.num
                    }
                    qsns.Unsolved.push(obj);
                }
            }

            //for solved
            for (let i in SqsnsID) {

                let question = await UserQuestionModel.findOne({ QuestionID: SqsnsID[i], TeamID: req.team._id })
                if (question) {
                    let obj = {
                        QuestionNumber: question.QuestionNumber,
                        Question: question.Question,
                        Description: question.Description,
                        HintAddress: question.HintAddress,
                        Points: question.Points,
                        num: question.num
                    }
                    qsns.Solved.push(obj);
                }
            }
            res.json({
                Questions: qsns,
                ServerTime: new Date(),
                RoundEnd: round.EndTime,
                status: true
            })

        }
        else {
            //router should be closed
            res.send("Round is closed");
        }


    }
    catch (error) {
        console.log(error)
        res.status(500).json({
            message: error.message
        })
    }
})