const express = require('express');
const bodyParser = require('body-parser');
const jwt = require('jsonwebtoken');
const cors = require('cors');

const { Document, Schema, connect } = require('camo');

// Define the Racers schema
class Racer extends Document {
  constructor() {
    super();

    this.name = String;
    this.gameHandle = String;
  }
}

// Define the Seasons schema
class Season extends Document {
  constructor() {
    super();

    this.name = String;
    this.subtitle = String;
    this.seasonStartDate = Date;
  }
}

// Define the Races schema
class Race extends Document {
  constructor() {
    super();

    this.weekNumber = Number;
    this.raceStartDate = Date;
    this.raceEndDate = Date;
    this.mapName = String;
    this.mapLink = String;
    this.season = Season;
  }
}

// Define the RaceResults schema
class RaceResult extends Document {
  constructor() {
    super();

    this.race = Race;
    this.racer = Racer;
    this.timeInSeconds = Number;
    this.replayPath = String;
  }
}

connect('nedb://./nedb-database.db');

const fs = require('fs');
const app = express();
const upload = require('./backend/routes/upload-replay');

const AdvancableBuffer = require('./backend/utilities/AdvancableBuffer.js');
const gbxHeader = require('./backend/trackmania-replays/gbx-header.js');
  
// handling CORS 
app.use(cors());
app.use(bodyParser.json());

//const RSA_PRIVATE_KEY = fs.readFileSync('./private.key');
const RSA_PRIVATE_KEY = "Secret_KeY";
const RSA_PUBLIC_KEY = fs.readFileSync('./public.key');


const users = [
  { id: 1, username: 'user1', password: 'password1' },
  { id: 2, username: 'user2', password: 'password2' }
];

const seasons = [
  {  id: 1,  seasonName: "Season 1",  seasonTag: "Post Winter Blues",  seasonCardImage: "",  seasonHeaderImage: "",  seasonStartDate: "",  seasonEndDate: "",  seasonDesc: "",},
  {  id: 2,  seasonName: "Season 2",  seasonTag: "Post Winter Blues",  seasonCardImage: "",  seasonHeaderImage: "",  seasonStartDate: "",  seasonEndDate: "",  seasonDesc: "",}
]

const season_details = {
  details: {
    id: 1,
    seasonName: "Season 1",
    seasonTag: "Post Winter Blues",
    seasonCardImage: "",
    seasonHeaderImage: "",
    seasonStartDate: "",
    seasonSendDate: "",
    seasonId: "",
    seasonDesc: "",
  },
  standings: [{
    position: 1,
    points: 4,
    user: {
      realName: "Dan H",
      gamerHandle: "Quildra",
    }
  },
  {
    position: 2,
    points: 2,
    user: {
      realName: "Dan Mc",
      gamerHandle: "Mini-Quildra",
    }
  },
  ],
  weeks:[{
    id: "1",
    map: "bob",
    mapImg: "bob.jpg",
    entries: [
      {
        position: 1,
        runTime: 4.0,
        user: {
          realName: "Dan H",
          gamerHandle: "Quildra",
        }
      }
    ]
  }]
}

function verifyToken(req, res, next) {
  const token = req.headers['authorization'];

  if (!token) {
    return res.status(403).json({ message: 'Token not provided' });
  }

  jwt.verify(token, RSA_PRIVATE_KEY, (err, decoded) => {
    if (err) {
      return res.status(401).json({ message: 'Failed to authenticate token',
    error: err});
    }

    req.userId = decoded.userId;
    next();
  });
}

app.post('/api/login', (req, res) => {
  const { username, password } = req.body;

  // Check if the user exists and the password is correct
  const user = users.find(u => u.username === username && u.password === password);

  if (!user) {
    return res.status(401).json({ message: 'Invalid username or password' });
  }

  // Generate and return a JWT token
  const token = jwt.sign({ userId: user.id, username: user.username }, RSA_PRIVATE_KEY, { expiresIn: '1h' });
  res.json({ token });
});

// Protected route example
app.get('/api/profile', verifyToken, (req, res) => {
  const user = users.find(u => u.id === req.userId);
  res.json({ username: user.username, userId: user.id });
});

app.get('/api/seasons', async (req, res) => {
  const seasons = await Season.find();
  res.json({seasons: seasons});
});

app.get('/api/seasons/:id', (req, res) => {
  res.json({data: season_details});
});

app.post('/api/seasons/add', verifyToken, async (req, res) => {
  console.log("New Seaosn Time");
  const { name, subtitle, seasonStartDate } = req.body;
  const season = await Season.create({ name, subtitle, seasonStartDate });
  console.log(season);
  res.json(season);
});

// route for handling requests from the Angular client 
app.post('/api/upload-replay', upload.single('file'),  (req, res) => {
  let file = req.file;
  console.log("File uploaded: ", req.file);
  fs.readFile(file.path, function(err, buffer)
  {
    buff = new AdvancableBuffer(buffer);
    header = new gbxHeader().parse(buffer);
  })
}); 
  
app.listen(3000, () => { 
    console.log('Server listening on port 3000'); 
});