Added backend for leaderbaord

Author: Adez017

src/pages/dashboard/Leaderboard_backend/.gitignore

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+node_modules/
+env

src/pages/dashboard/Leaderboard_backend/functions/org_leaderboard.js

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+const axios = require("axios");
+const fs = require("fs");
+require("dotenv").config();
+
+const ORG_NAME = "recodehive";
+let leaderboard = {};
+
+const timer = ms => new Promise(res => setTimeout(res, ms));
+
+async function generateOrgLeaderboard() {
+  try {
+    let repos = await axios.get(
+      `https://api.github.com/orgs/${ORG_NAME}/repos?per_page=100`,
+      {
+        headers: { Authorization: "token " + process.env.GIT_TOKEN }
+      }
+    );
+
+    for (let repo of repos.data) {
+      let repoFullName = repo.full_name; // recodehive/repoName
+      console.log(`Fetching PRs for ${repoFullName}`);
+
+      try {
+        let response = await axios.get(
+          `https://api.github.com/search/issues?q=repo:${repoFullName}+is:pr+is:merged&per_page=100`,
+          { headers: { Authorization: "token " + process.env.GIT_TOKEN } }
+        );
+
+        let prs = response.data.items;
+
+        for (let pr of prs) {
+          let user = pr.user;
+
+          if (!leaderboard[user.id]) {
+            leaderboard[user.id] = {
+              avatar_url: user.avatar_url,
+              login: user.login,
+              url: user.html_url,
+              score: 0,
+              // postManTag: false, // keep if needed
+              pr_urls: []
+            };
+          }
+
+          if (!leaderboard[user.id].pr_urls.includes(pr.html_url)) {
+            leaderboard[user.id].pr_urls.push(pr.html_url);
+            leaderboard[user.id].score += 10; // scoring rule (static here)
+          }
+        }
+      } catch (err) {
+        console.log(`Error fetching PRs for ${repoFullName}`, err.message);
+      }
+
+      // small delay to avoid hitting GitHub rate limits
+      await timer(3000);
+    }
+
+    // Convert to array, add rank + PR count
+    let leaderboardArray = Object.values(leaderboard)
+      .map(u => ({
+        ...u,
+        no_of_prs: u.pr_urls.length
+      }))
+      .sort((a, b) => b.score - a.score)
+      .map((u, i) => ({
+        rank: i + 1,
+        ...u
+      }));
+
+    let json = {
+      leaderboard: leaderboardArray,
+      success: true,
+      updatedAt: +new Date(),
+      generated: true,
+      updatedTimestring: new Date().toLocaleString()
+    };
+
+    fs.writeFileSync("org_leaderboard.json", JSON.stringify(json, null, 2));
+    console.log("recodehive leaderboard generated!");
+  } catch (error) {
+    console.error("Failed to generate leaderboard:", error.message);
+  }
+}
+
+module.exports.generateOrgLeaderboard = generateOrgLeaderboard;
+
+// if (require.main === module) {
+//   generateOrgLeaderboard(); //Added to test the function directly
+// }

src/pages/dashboard/Leaderboard_backend/jobs/update_leaderboard.js

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+const schedule = require('node-schedule');
+const { generateOrgLeaderboard } = require("../functions/org_leaderboard");
+
+
+
+function updateOrgLeaderboardJob() {
+    // Cron format: second, minute, hour, day of month, month, day of week
+    // This runs every day at 00:00:00 (midnight)
+    schedule.scheduleJob('0 0 0 * * *', async function () {
+        console.log("========");
+        console.log("Starting leaderboard update job...");
+        console.log("========");
+
+        try {
+            await generateOrgLeaderboard();
+            console.log("Leaderboard updated successfully!");
+        } catch (err) {
+            console.error("Leaderboard update failed:", err.message);
+        }
+    });
+}
+
+module.exports.updateOrgLeaderboardJob = updateOrgLeaderboardJob;