const express = require('express')
const crypto = require('crypto')
const mail = require('../config/MailConfig.js')
const Team = require('../models/TeamModel.js')
const User = require('../models/UserModel.js')
const LeaderBoard = require('../models/LeaderboardModel.js')
const Coupon = require('../models/CouponModel.js')
const validator = require('../middlewares/UserValidator.js')
const dotenv = require("dotenv");
dotenv.config({ path: "./config.env" });
var successTeam, successUser, successLeaderBoard;






module.exports.createTeam = async function createTeam(req, res) {
    try {
        let data = (req.body)

        let TeamName = data.TeamName
        let Code = crypto.randomBytes(4).toString("hex");

        let teamobj = {
            TeamName: TeamName.toLowerCase(),
            Code: Code,
            Password: data.Password
        }
        let team = await Team.create(teamobj);
        successTeam = team;
        console.log("Team Created")
        let url =process.env.FRONTEND+ `/register/:${Code}`
        
        
        let leader = {
            Name: data.Name,
            Email: data.Email.toLowerCase(),
            Password: data.Password,
            RollNumber: data.RollNumber,
            PhoneNumber: data.PhoneNumber,
            Branch: data.Branch,
            Year: data.Year,
            DiscordID: data.DiscordId,
            Role: "Leader",
            Password: data.Password,
            TeamID: team._id
        }
        var err = await validator.validateUser(leader)
        if (err) {
            console.log("User Not Validated")
            throw new Error(err)
        }
        else {
            console.log("User Validated")
        
        console.log(leader)
        let user = await User.create(leader);
        successUser = user;
        let leaderboard = new LeaderBoard({
            TeamID: team._id,
            TeamName: TeamName.toLowerCase(),
            Points: 0
        })
        await LeaderBoard.create(leaderboard);
        successLeaderBoard = leaderboard;
        var qresp = Team.findByIdAndUpdate(team._id, { $push: { Members: user._id } }).exec();
        mail.sendMailLeader(data.Email,"Successfully Created team for Raptus!" ,TeamName, Code,data.Name);
        res.json({
            message: "Team Registered Successfully",
            status: true,
            Code: Code,
            URL: url,
            TeamName: TeamName,
            Resp: qresp
        });
    }

    } catch (error) {
        if (successTeam)
            Team.findByIdAndDelete(successTeam._id).exec();
        if (successUser)
            User.findByIdAndDelete(successUser._id).exec();
        if (successLeaderBoard)
            LeaderBoard.findByIdAndDelete(successLeaderBoard._id).exec();
        if (error.code === 11000) {
            var message = error;
            if (error.keyValue.TeamName)
                message = "Team Name already exists"
            if (error.keyValue.Code)
                message = "Team Code already exists"
            if (error.keyValue.Email)
                message = "Email already exists"
            if (error.keyValue.RollNumber)
                message = "Roll Number already exists"
            if (error.keyValue.PhoneNumber)
                message = "Phone Number already exists"
            if (error.keyValue.DiscordID)
                message = "Discord Id already exists"

            res.json({
                message: message
            })
            return
        }
        // console.log(error)
        else
        res.json({
                    status: false,
                    message: error.message
        })
    }
}







module.exports.verifyTeam = async function verifyTeam(req, res) {
    try {
        let data = req.body
        let team = await Team.findOne({ Code: data.Code })

        if (team) {
            if (team.Members.length <= 3) {
                res.json({
                    status: true,
                    url: process.env.FRONTEND+`/register/:${team.Code}`,
                    TeamName: team.TeamName,
                    Code: data.Code
                })
            }
            else if (team.Members.length == 4) {
                res.json({
                    status: false,
                    message: "Team is Full !!"
                });
            }
        }
        else {
            res.json({
                    status: false,
                    message: "Invalid Team Code"
            });
        }
    } catch (error) {
        res.json({
                    status: false,
                    message: error.message
        })
    }
}












module.exports.info = async function info(req, res) {
    try {
        let data = req.body;
        let team = await Team.findOne({ Code: data.code })

        if (team) {
            if (team.Members.length <= 3) {
                res.json({
                    status: true,
                    url: process.env.FRONTEND+`/register/:${team.Code}`,
                    TeamName: team.TeamName,
                    Code: data.Code
                })
            }
            else if (team.Members.length == 4) {
                res.json({
                    status: false,
                    message: "Team is Full !!"
                });
            }
        }
        else {
            res.json({
                status: false,
                message: "Invalid URL"
            });
        }
    } catch (error) {
        res.json({
            status: false,
            message: error.message
        })
    }
}












module.exports.joinTeam = async function joinTeam(req, res) {
    try {
        let data = (req.body)
        let Code = req.params.id.substring(1);
        let team = await Team.findOne({ Code: Code })

        let member = {
            Name: data.Name,
            Email: data.Email,
            Password: team.Password,
            RollNumber: data.RollNumber,
            PhoneNumber: data.PhoneNumber,
            Branch: data.Branch,
            Year: data.Year,
            DiscordID: data.DiscordId,
            Role: "Member",
            Password: team.Password,
            TeamID: team._id
        }
        var err = await validator.validateUser(member)
//console.log(err)
        if (err) {
            console.log("User Not Validated")
            throw new Error(err)
        }
        else {
            console.log("User Validated")
        

        let user;
        if (team.Members.length <= 3) {
            user = await User.create(member);
            successUser = user;
            team.Members.push(user._id)
            await team.save()
            console.log(team)
            console.log(user)
            mail.sendMailMember(data.Email, "Successfully Joined team for Raptus!", team.TeamName, team.Code, data.Name);
        }
        else {
            res.json({
                status: false,
                message: "Team is already full !!",
            });
        }
    
        res.json({
            status: true,
            message: "Member registered successfully",
            TeamName: team.TeamName,
        });}

    } catch (error) {

        if (successUser)
            User.findByIdAndDelete(successUser._id).exec();

        if (error.code === 11000) {
            var message = error;
            if (error.keyValue.Email)
                message = "Email already exists"
            if (error.keyValue.RollNumber)
                message = "Roll Number already exists"
            if (error.keyValue.PhoneNumber)
                message = "Phone Number already exists"
            if (error.keyValue.DiscordID)
                message = "Discord Id already exists"

            res.json({
                    status: false,
                    message: message
            })
            return
        }
        // console.log(error)
        else
        res.json({
            status: false,
            message: error.message
        })
    }
}



module.exports.coupon = async function coupon(req, res) {
    try {
        let couponCode = crypto.randomBytes(6).toString("hex");
        res.json({
            status: true,
            Coupon: couponCode
        });
        let couponCreated = await Coupon.create({ Coupon: couponCode })
    } catch (error) {
        res.status(500).json({
            message: error.message
        })
    }
}