add: added channel delete button

back/api/channels.js

@@ -13,7 +13,8 @@ const {
     getUserByUsername,
     deleMentions,
     deleteChannelMentions,
-    deleteChannelMessages
+    deleteChannelMessages,
+    deleteChannel
 } = require('../libs/mysql');
 const { checkAuth } = require('../libs/middlewares');
 
@@ -68,6 +69,37 @@ router.post('/:name/purge', async (req, res) => {
     res.send({ message: 'Channel purged' });
 });
 
+router.use('/:name/delete', checkAuth);
+router.post('/:name/delete', async (req, res) => {
+    const name = req.params.name;
+    const user = req.user;
+
+    const connection = await getConnection();
+
+    const channel = await getChannel(connection, name);
+    if (!channel[0]) {
+        connection.end();
+        return res.status(400).send({ error: 'No channel found' });
+    }
+
+    if (user.admin !== 1) {
+        connection.end();
+        return res.status(401).send({ error: 'Unauthorized' });
+    }
+
+    await deleteChannelMentions(connection, channel[0].id);
+    await deleteChannelMessages(connection, channel[0].id);
+    await deleteChannel(connection, channel[0].id);
+    connection.end();
+
+    req.sockets.emit({
+        type: 'delete_channel',
+        channel_id: channel[0].id,
+    });
+
+    res.send({ message: 'Channel deleted' });
+});
+
 router.get('/:name/messages', async (req, res) => {
     const name = req.params.name;
     const connection = await getConnection();

back/libs/mysql.js

@@ -193,6 +193,21 @@ function addChannel(connection, name, description, owner_id) {
   });
 }
 
+function deleteChannel(connection, channel_id) {
+  return new Promise((resolve, reject) => {
+    connection.query(
+      `DELETE FROM channels WHERE id = ?`,
+      [channel_id], // Use parameterized query
+      (error, result) => {
+        if (error) {
+          reject(new Error(error));
+        }
+        resolve(result);
+      }
+    );
+  });
+}
+
 function getMessages(connection, channel_id) {
   return new Promise((resolve, reject) => {
     connection.query(
@@ -371,6 +386,7 @@ module.exports = {
   searchChannels,
   getChannel,
   addChannel,
+  deleteChannel,
   getMessages,
   getLastMessages,
   getMessage,