Merge pull request #2 from SysSn13/contests

Feat: Contest model and service to fetch data , Webpage for contest list

Author: SysSn13

models/contest.js

@@ -3,10 +3,11 @@ const Schema = mongoose.Schema
 
 const ContestRankingsSchema = new Schema({
     _id: String,
+    startTime: Date,
+    endTime: Date,
     contest_id: Number,
     lastUpdated:{
         type: Date,
-        default: Date.now()
     },
     rankings : [{
         _id: String,

package-lock.json

@@ -15,7 +15,8 @@
     "express": "^4.17.1",
     "express-ejs-layouts": "^2.5.0",
     "mongoose": "^5.12.10",
-    "node-fetch": "^2.6.1"
+    "node-fetch": "^2.6.1",
+    "node-schedule": "^2.0.0"
   },
   "_id": "leetcode-rating-predictor@1.0.0",
   "devDependencies": {

package.json

@@ -0,0 +1,46 @@
+html,
+    body,
+    .intro {
+      height: 100%;
+    }
+    
+    table td,
+    table th {
+      text-overflow: ellipsis;
+      white-space: nowrap;
+      overflow: hidden;
+    }
+    
+    thead th {
+      color: #fff;
+    }
+    
+    .card {
+      border-radius: .5rem;
+    }
+    
+    .table-scroll {
+      border-radius: .5rem;
+    }
+    
+    .table-scroll table thead th {
+      font-size: 1.25rem;
+    }
+   
+    .pagination {
+    display: inline-block;
+    }
+
+    .pagination a {
+    color: black;
+    float: left;
+    padding: 8px 16px;
+    text-decoration: none;
+    }
+
+    .pagination a.active {
+    background-color: #5bc0de	;
+    color: white;
+    }
+
+    .pagination a:hover:not(.active) {background-color: #ddd;}

public/stylesheets/tablestyle.css

@@ -1,8 +1,22 @@
 const express = require('express')
+const contest = require('../models/contest')
+const { fetchContest } = require('../services/contests')
 const router = express.Router()
 
 router.get('/',(req,res)=> {
     res.render("index")
 })
+//fetchContest()
+
+ router.get('/contests',async (req,res) => {
+     try {
+         let contests = await contest.find({})
+         res.render('contests/index',{contests:contests})
+     }
+     catch(error) {
+         console.log("SHITTT")
+         res.send(error.message)
+     }
+ })
 
 module.exports = router

routes/index.js

@@ -1,12 +1,12 @@
 const fetch = require('node-fetch')
 
-const Contest = require('../models/contest');
+const Contest = require('../models/contest')
 let halfHour = 1000*60*30
 
 const fetchContestRankings = async function(contestSlug) {
 
     let contest = await Contest.findById(contestSlug)
-    if(contest === null || Date.now() - contest.lastUpdated >= halfHour){
+    if(contest===null || contest.rankings.length===0){
 
         try {
             rankings = []
@@ -33,12 +33,22 @@ const fetchContestRankings = async function(contestSlug) {
                 lastUpdated: Date.now(),
                 rankings: rankings
             })
-            if(contest===null){
+            if(contest===null ){
                 await newContest.save()
+                console.log(`Created contest ${contestSlug}`)
+
             }
             else{
-                await Contest.findByIdAndUpdate(contestSlug, newContest)
-                console.log(`Updated contest ${contestSlug}`)
+                let updatedContest = new Contest({
+                    _id: contestSlug,
+                    contest_id: contest_id,
+                    lastUpdated: Date.now(),
+                    rankings: rankings,
+                    startTime: contest.startTime,
+                    endTime: contest.endTime,
+                })
+                await Contest.findByIdAndUpdate(contestSlug, updatedContest)
+                console.log(`Updated Rankings in  contest ${contestSlug}`)
             }
             return newContest
         } 
@@ -52,12 +62,70 @@ const fetchContestRankings = async function(contestSlug) {
         return contest
     }
 }
+
+const fetchContest = async () => {
+
+    try {
+        let res = await fetch("https://leetcode.com/graphql", {
+        "headers": {
+            "accept": "*/*",
+            "accept-language": "en-GB,en-US;q=0.9,en;q=0.8",
+            "content-type": "application/json",
+            "sec-ch-ua": "\" Not A;Brand\";v=\"99\", \"Chromium\";v=\"90\", \"Google Chrome\";v=\"90\"",
+            "sec-ch-ua-mobile": "?0",
+            "sec-fetch-dest": "empty",
+            "sec-fetch-mode": "cors",
+            "sec-fetch-site": "same-origin",
+            "x-newrelic-id": "UAQDVFVRGwEAXVlbBAg="
+            
+        },
+        "referrer": "https://leetcode.com/contest/",
+        "referrerPolicy": "strict-origin-when-cross-origin",
+        "body": "{\"operationName\":null,\"variables\":{},\"query\":\"{\\n  brightTitle\\n  currentTimestamp\\n  allContests {\\n    containsPremium\\n    title\\n    cardImg\\n    titleSlug\\n    description\\n    startTime\\n    duration\\n    originStartTime\\n    isVirtual\\n    company {\\n      watermark\\n      __typename\\n    }\\n    __typename\\n  }\\n}\\n\"}",
+        "method": "POST",
+        "mode": "cors"
+        });
+        res = await res.json()
+        //console.log(res.data.allContests[0])
+        let contestSlug = res.data.allContests[0].titleSlug
+        let startTime = res.data.allContests[0].startTime
+        let endTime = startTime + res.data.allContests[0].duration
+        for(let i=0;i<res.data.allContests.length;i++)
+        {
+            let contest = res.data.allContests[i];
+            let isfound = await Contest.findById(contest.titleSlug)
+            if(isfound){
+                break;
+            }
+            let newContest = new Contest({
+                _id: contest.titleSlug,
+                startTime: contest.startTime*1000,
+                endTime: startTime + contest.duration*1000,
+                lastUpdated: Date.now(),
+            })
+            let oldContest = await Contest.findById(contest.titleSlug)
+            if(oldContest==null){
+                await newContest.save()
+            }
+            else{
+                Contest.findByIdAndUpdate(contest.titleSlug,newContest)
+            }
+        }
+        return res.data.allContests
+    }
+    catch(error){
+        console.log(error)
+    }
+}
 const getContestRankings = async function(contestSlug){
     let contest = await Contest.findById(contestSlug)
     if(!contest){
         contest = await fetchContestRankings(contestSlug)
     }
     return contest
 } 
+
+// exports 
+module.exports.fetchContest = fetchContest
 exports.getContestRankings = getContestRankings
 exports.fetchContestRankings = fetchContestRankings