LeagueStats/server/src/server.js

require('dotenv').config({ path: __dirname + '/./../.env' })
const express = require('express')
const request = require('request');
const bodyParser = require('body-parser');
const rp = require('request-promise');
const Promise = require("bluebird");
const responseTime = require('response-time')
const cors = require('cors');
const app = express()
import { Jax } from "./Jax";

/* Global Variables */
const data = {
  key: process.env.API_KEY,
  region: 'euw1',
  summonerID: '',
  accountID: '',
  username: '',
  JSONMatches: [],
  finalJSON: {}
}

/* Set Port */
app.set('port', (process.env.PORT || 5000))

/* Setup Cors */
app.use(cors({
  origin: [
    'http://localhost:8080',
    'https://leaguestats-gg.netlify.com',
    'https://leaguestats.valentinkaelin.ch/'
  ]
}));

/* To retrieve data of post request */
app.use(bodyParser.json());    // to support JSON-encoded bodies
app.use(bodyParser.urlencoded({  // to support URL-encoded bodies
  extended: true
}));

// Create a middleware that adds a X-Response-Time header to responses
app.use(responseTime());

// Setup Jax
let jax

/* Launch app */
app.listen(app.get('port'), async () => {
  console.log(`RiotAPI app listening on port ${app.get('port')}!`)
  jax = await new Jax()
})

// Send data of a summoner
app.post('/api', function (req, res) {
  console.log('API Request');
  console.log(req.body.summoner);
  console.log(req.body.region);
  console.time('all')
  data.region = req.body.region;
  data.username = req.body.summoner;

  data.finalJSON = {};
  // getAccountInfos(res);
  jax.regionName = data.region
  getAccountInfosNew(res)
});

/* Get static file from Riot API */
app.post('/ddragon', async function (req, res) {
  console.log('DDragon Request')
  const endpoint = req.body.endpoint
  const result = await jax.DDragon[endpoint].list()
  res.send(result)
})

/* Get account infos of an username - Refactor with the Jax Wrapper */
async function getAccountInfosNew(res) {
  try {
    const account = await jax.Summoner.summonerName(data.username)
    data.summonerID = account.id
    data.accountID = account.accountId
    data.finalJSON.account = account
    getRanked(res)
  } catch (error) {
    console.log('username not found')
    console.log(error)
    res.send(null)
  }
}

// Get account infos of an username - Old version
const getAccountInfos = function (res) {
  request(`https://${data.region}.api.riotgames.com/lol/summoner/v4/summoners/by-name/${encodeURIComponent(data.username)}?api_key=${data.key}`, function (error, response, body) {
    if (!error && response.statusCode == 200) {
      let JSONBody = JSON.parse(body);
      data.summonerID = JSONBody.id;
      data.accountID = JSONBody.accountId;
      data.finalJSON.account = JSONBody
      getRanked(res);
    }
    else {
      console.log(response.statusCode);
      console.log('username not found');
      res.send(null);
    }
  });
}

// Get data of rankeds stats
const getRanked = function (res) {
  request(`https://${data.region}.api.riotgames.com/lol/league/v4/entries/by-summoner/${data.summonerID}?api_key=${data.key}`, function (error, response, body) {
    if (!error && response.statusCode == 200) {
      const JSONBody = JSON.parse(body).filter(e => e.queueType === 'RANKED_SOLO_5x5');
      if (JSONBody.length === 1) {
        data.finalJSON.soloQ = JSONBody[0];
      } else {
        console.log('empty rank stats');
        data.finalJSON.soloQ = null;
      }
      getMatches(res);
    }
  })
}

// Get 100 matches basic infos and 10 matches details of an accountID
const getMatches = function (res) {
  console.time('getMatches');

  request(`https://${data.region}.api.riotgames.com/lol/match/v4/matchlists/by-account/${data.accountID}?endIndex=100&api_key=${data.key}`, function (error, response, body) {
    if (!error && response.statusCode == 200) {
      const allMatches = JSON.parse(body)
      data.JSONMatches = allMatches.matches.slice(0, 10)
      const matchsId = data.JSONMatches.map(x => x.gameId)

      Promise.map(matchsId, function (id) {
        return getMatch('match/v4/matches/' + id);
      }).then(() => {
        console.timeEnd('getMatches');
        console.log('Finished - Data sent to front');
        data.finalJSON.matchesDetails = data.JSONMatches
        data.finalJSON.allMatches = allMatches.matches
        res.send(data.finalJSON);
        console.timeEnd('all')
      }).catch(err => {
        console.log('Error Promise');
        console.log(err);
      });
    }
  });
}

// Get data of one match
const getMatch = async function (urlApi) {
  //console.log(urlApi);
  return rp({ url: `https://${data.region}.api.riotgames.com/lol/${urlApi}?api_key=${data.key}`, json: true }).then(function (obj) {
    data.JSONMatches = data.JSONMatches.map((match) => match.gameId === obj.gameId ? obj : match);
  });
}