add: changed homepage to display most active channels

back/api/activechannels.js

@@ -0,0 +1,13 @@
+const express = require('express');
+const { getConnection, getActiveChannels } = require('../libs/mysql');
+
+const router = express.Router();
+
+router.get('/', async (req, res) => {
+    const connection = await getConnection();
+    const channels = await getActiveChannels(connection);
+    connection.end();
+    res.send(channels);
+});
+
+module.exports = router;

back/api/channels.js

@@ -1,5 +1,4 @@
 const express = require('express');
-const jwt = require('jsonwebtoken');
 const { getConnection, getChannels, getChannel, addChannel, getMessages, getMessage, addMessage, deleteMessage, getLastMessages } = require('../libs/mysql');
 const { checkAuth } = require('../libs/middlewares');
 

back/api/searchchannels.js

@@ -0,0 +1,14 @@
+const express = require('express');
+const { getConnection, searchChannels } = require('../libs/mysql');
+
+const router = express.Router();
+
+router.get('/', async (req, res) => {
+    const { search } = req.query;
+    const connection = await getConnection();
+    const channels = await searchChannels(connection, search);
+    connection.end();
+    res.send(channels);
+});
+
+module.exports = router;

back/libs/mysql.js

@@ -88,6 +88,46 @@ function getChannels(connection) {
   });
 }
 
+function getActiveChannels(connection) {
+  return new Promise((resolve, reject) => {
+    connection.query(
+      `SELECT channels.id, name, description, owner_id, username AS owner_username, count(*) AS message_count
+       FROM messages
+       JOIN channels ON messages.channel_id = channels.id
+       JOIN users ON messages.user_id = users.id
+       WHERE date > (SELECT max(date) FROM messages) - 7 * 24 * 60 * 60
+       GROUP BY channel_id
+       ORDER BY count(*) DESC
+       LIMIT 5;`,
+      (error, result) => {
+        if (error) {
+          reject(new Error(error));
+        }
+        resolve(result);
+      }
+    );
+  });
+}
+
+function searchChannels(connection, search) {
+  return new Promise((resolve, reject) => {
+    connection.query(
+      `SELECT channels.id, name, description, owner_id, username AS owner_username 
+       FROM channels 
+       JOIN users ON channels.owner_id = users.id 
+       WHERE name LIKE ?
+       LIMIT 5`,
+      [`%${search}%`], // Use parameterized query
+      (error, result) => {
+        if (error) {
+          reject(new Error(error));
+        }
+        resolve(result);
+      }
+    );
+  });
+}
+
 function getChannel(connection, name) {
   return new Promise((resolve, reject) => {
     connection.query(
@@ -215,6 +255,8 @@ module.exports = {
   addUser,
   getUserLastMessages,
   getChannels,
+  getActiveChannels,
+  searchChannels,
   getChannel,
   addChannel,
   getMessages,