Channel

app/Http/Controllers/ChatController.php

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+<?php
+
+namespace App\Http\Controllers;
+
+use App\Events\Conversation\MessageSent;
+use App\Models\Chat\Conversation;
+use App\Models\Chat\Message;
+use App\Models\User;
+use Illuminate\Http\Request;
+
+class ChatController extends Controller
+{
+    public function contacts()
+    {
+        return User::select(['id', 'first_name', 'last_name'])
+            ->get()
+            ->map(function ($user) {
+                return [
+                    'id' => $user->id,
+                    'name' => $user->first_name.' '.$user->last_name,
+                ];
+            });
+    }
+
+    public function start(Request $request)
+    {
+        $user1 = auth()->id();
+        $user2 = $request->user_id;
+
+        $conversation = Conversation::whereHas('users', fn ($q) => $q->where('user_id', $user1))
+            ->whereHas('users', fn ($q) => $q->where('user_id', $user2))
+            ->first();
+
+        if (! $conversation) {
+            $conversation = Conversation::create();
+            $conversation->users()->attach([$user1, $user2]);
+        }
+
+        return $conversation;
+    }
+
+    public function messages($id)
+    {
+        return Message::with('user')
+            ->where('conversation_id', $id)
+            ->latest()
+            ->take(50)
+            ->get()
+            ->reverse()
+            ->values();
+    }
+
+    public function send(Request $request)
+    {
+        $message = Message::create([
+            'conversation_id' => $request->conversation_id,
+            'user_id' => auth()->id(),
+            'body' => $request->body,
+        ]);
+
+        broadcast(new MessageSent($message))->toOthers();
+
+        return $message->load('user');
+    }
+}