feat: Add support for mutiple channels

src/lib/server/db/index.ts

@@ -1,5 +1,10 @@
 import cassandra from 'cassandra-driver';
 
+interface Messages {
+  messages: cassandra.types.Row[] | null;
+  error: Error | null;
+}
+
 class Db {
   private client: cassandra.Client;
 
@@ -47,15 +52,21 @@ class Db {
   }
 
   // Get messages method
-  async getMessages(channelName: string, limit: number): Promise<cassandra.types.Row[] | undefined> {
+  async getMessages(channelName: string, limit: number): Promise<Messages> {
     try {
       const res = await this.client.execute(
         `SELECT * FROM channels.${channelName} WHERE channel_name = '${channelName}' ORDER BY timestamp DESC LIMIT ${limit}`,
       );
-      return res.rows;
+      return {
+        messages: res.rows,
+        error: null,
+      };
     } catch (e) {
       console.log(`Error fetching messages: ${(e as Error).message}`);
-      return;
+      return {
+        messages: null,
+        error: e as Error,
+      };
     }
   }
 }
@@ -85,4 +96,4 @@ try {
 const db = new Db(client);
 await db.createChannel('general');
 
-export { db };
+export { db, type Messages };

src/routes/+page.server.ts

@@ -1,19 +1,5 @@
-import type { TypeMessage } from '$lib';
-import { db } from '$lib/server/db';
+import { redirect } from '@sveltejs/kit';
 
-export async function load(): Promise<{ messages: TypeMessage[] }> {
-  const rows = await db.getMessages('general', 50);
-  const messages: TypeMessage[] = rows
-    ? rows.map((value) => {
-        return {
-          message: value.message_content,
-          user: value.sender.toString(),
-          imageSrc: `https://api.dicebear.com/9.x/identicon/svg?seed=${value.sender.toString()}`,
-        };
-      })
-    : [];
-
-  return {
-    messages: messages ?? [],
-  };
+export function load(): void {
+  redirect(308, '/channel/general');
 }

src/routes/+page.svelte

@@ -1,58 +0,0 @@
-<script lang="ts">
-  import { io } from 'socket.io-client';
-  import { onMount } from 'svelte';
-  import { v4 as uuidv4 } from 'uuid';
-  import { type TypeMessage } from '$lib';
-  import type { PageData } from './$types';
-  import { Input } from '$lib/components/ui/input/index';
-  import { Button } from '$lib/components/ui/button/index';
-  import Send from 'lucide-svelte/icons/send';
-  import Message from '$lib/components/message.svelte';
-
-  let { data }: { data: PageData } = $props();
-  let user: string | undefined;
-  let socket: ReturnType<typeof io> | null = null;
-  let log: TypeMessage[] = $state([]);
-  let msg: string = $state('');
-
-  function logEvent(newMsg: TypeMessage) {
-    log = [newMsg, ...log];
-  }
-
-  function establishSocketIOConnection() {
-    if (socket) return;
-    socket = io();
-
-    socket.on('message', (data: TypeMessage) => {
-      console.log('[ws] message received', data);
-      logEvent(data);
-    });
-  }
-
-  function sendMessage() {
-    if (!socket) return;
-    socket.emit('message', { id: user, content: msg });
-    msg = '';
-  }
-
-  onMount(() => {
-    establishSocketIOConnection();
-    user = uuidv4();
-  });
-</script>
-
-{#snippet message(messages: TypeMessage[])}
-  {#each messages as message}
-    <Message imageSrc={message.imageSrc} user={message.user} message={message.message} />
-  {/each}
-{/snippet}
-<div class="flex flex-1 flex-col items-center justify-center rounded-lg shadow-sm gap-1 h-full">
-  <div class="flex-grow flex-col-reverse flex flex-auto overflow-y-scroll overflow-x-hidden rounded-lg border w-full">
-    {@render message(log)}
-    {@render message(data.messages)}
-  </div>
-  <form class="flex gap-1 w-full" onsubmit={sendMessage}>
-    <Input type="text" placeholder="Type Here" bind:value={msg} />
-    <Button class="h-9 w-14"><Send class="size-full" /></Button>
-  </form>
-</div>

src/routes/channel/[channel]/+page.server.ts

@@ -0,0 +1,26 @@
+import type { TypeMessage } from '$lib';
+import { error } from '@sveltejs/kit';
+import { db } from '$lib/server/db';
+
+export async function load({ params }): Promise<{ messages: TypeMessage[] }> {
+  let messages: TypeMessage[];
+  const rows = await db.getMessages(params.channel, 50);
+
+  if (rows.messages !== null) {
+    messages = rows
+      ? rows.messages.map((value) => {
+          return {
+            message: value.message_content,
+            user: value.sender.toString(),
+            imageSrc: `https://api.dicebear.com/9.x/identicon/svg?seed=${value.sender.toString()}`,
+          };
+        })
+      : [];
+  } else {
+    return error(404, `Channel '${params.channel}' does not exist`);
+  }
+
+  return {
+    messages: messages ?? [],
+  };
+}

src/routes/channel/[channel]/+page.svelte

@@ -0,0 +1,58 @@
+<script lang="ts">
+  import { io } from 'socket.io-client';
+  import { onMount } from 'svelte';
+  import { v4 as uuidv4 } from 'uuid';
+  import { type TypeMessage } from '$lib';
+  import type { PageData } from './$types';
+  import { Input } from '$lib/components/ui/input/index';
+  import { Button } from '$lib/components/ui/button/index';
+  import Send from 'lucide-svelte/icons/send';
+  import Message from '$lib/components/message.svelte';
+
+  let { data }: { data: PageData } = $props();
+  let user: string | undefined;
+  let socket: ReturnType<typeof io> | null = null;
+  let log: TypeMessage[] = $state([]);
+  let msg: string = $state('');
+
+  function logEvent(newMsg: TypeMessage) {
+    log = [newMsg, ...log];
+  }
+
+  function establishSocketIOConnection() {
+    if (socket) return;
+    socket = io();
+
+    socket.on('message', (data: TypeMessage) => {
+      console.log('[ws] message received', data);
+      logEvent(data);
+    });
+  }
+
+  function sendMessage() {
+    if (!socket) return;
+    socket.emit('message', { id: user, content: msg });
+    msg = '';
+  }
+
+  onMount(() => {
+    establishSocketIOConnection();
+    user = uuidv4();
+  });
+</script>
+
+{#snippet message(messages: TypeMessage[])}
+  {#each messages as message}
+    <Message imageSrc={message.imageSrc} user={message.user} message={message.message} />
+  {/each}
+{/snippet}
+<div class="flex flex-1 flex-col items-center justify-center rounded-lg shadow-sm gap-1 h-full">
+  <div class="flex-grow flex-col-reverse flex flex-auto overflow-y-scroll overflow-x-hidden rounded-lg border w-full">
+    {@render message(log)}
+    {@render message(data.messages)}
+  </div>
+  <form class="flex gap-1 w-full" onsubmit={sendMessage}>
+    <Input type="text" placeholder="Type Here" bind:value={msg} />
+    <Button class="h-9 w-14"><Send class="size-full" /></Button>
+  </form>
+</div>