Real Time Chat By Laravel And Livewire

Controllers--Livewire--Chat.php

<?php

namespace App\Http\Livewire\Forum;
use Illuminate\Support\Facades\Auth;
use Illuminate\Support\Facades\DB;
use Livewire\WithPagination;
use Livewire\Component;
use  App\Message;
use App\User;
class Chat extends Component
{   
   use WithPagination;
      // الإنصات للإيفنتس
	protected $listeners = ['selected_users', 'selected_group', 'loadMore'];

      //تعريف لبمتغيرات
	public $message, $chat_id, $unreadedMessages, $search, $group_id , $paginate_var=10;

  
  // get user unreaded messages -- جلب الرسائل غير المقروءة المرسلة من طرف باقي المستخدمين
        public function mount()
        {
               	$this->unreadedMessages = Auth::user()->unreadedMessages()->count();
           
        }
        public function render()
    {
  // get user unreaded messages  -- --  تخزين  الرسائل غير المقروءة في متغير     
    	 $unreadedMessages = $this->unreadedMessages;
 // جلب المستخدم الذي أود الحديث معه
 // select the user I want to chat with -- 
    	 $id = $this->chat_id;
// get selected user Info ------معلوماته
    	 if (isset($this->chat_id)) {
    	 	$chat_user = User::find($id);
    	 }
    	 else {
    	 	$chat_user = '';
    	 }
//--------------------------------

//جلب كل لامستخدمين كي أختار واحدا من بينهم أكلمه
// get All user to select one of them
    	 $users= User::all();
// My id
    	$user_id = Auth::user()->id;
// بعد اختيار المستخدم الذي سأكلمه سأقوم يجلب و إحصاء الرسائل بيننا كي أعرف إن كانت هناك بعض الرسائل التي أرسلها إلي و لم أقرأها بعد 
//------- Haldeling Messages between me and the selected user
          // counting حساب عدد الرسائل المرسلة من طرفه و غير مقروءة من طرفي
      $messages_count = Message::where('from_user',$id)
                         ->where(  'to_user',$user_id)
                         ->count();
	// لكي لا يكون عليك انتظار كل الرسائل بينكما لتظهر ... سيظهر عدد محدد من الرسائل في البداية فقط و عندما تسحب لأعلى ستظهر الرسائل التي سبقتها
        //الكود يقوم بجلب عدد كل الرسائل بيني و بين المستخدم الاخر و يطرح منه العدد الذي أريد رؤيته و العدد الباقي من الرسائل يتخطاه 
	// showing a special numer of messages firstly , then I can show more by scrolling to top
    	$messages = Message::where('from_user',$user_id)
    	                   ->where(  'to_user',$id)
    	                   ->orWhere('from_user',$id)
    	                   ->where('to_user',$user_id)
                         ->skip($messages_count - $this->paginate_var)
                         ->take($this->paginate_var)
                         ->get();
 // هنا أجلب آخر المحادثات التي خضتها 
 // showing Recent conversations I have
$conversations = \App\Conversation::where('first_user',Auth::user()->id)
                                 ->orWhere('second_user',Auth::user()->id)
                                 ->orderBy('last_message_time','desc')
                                 ->get();
 return view('livewire.forum.chat',compact('messages','id','users','chat_user','unreadedMessages','conversations','paginate_var'));
    }
  // هنا أحصل على المستخدم الذي سأحادثه
 // selecting the user I want to chat with by clicking his avatar 
     public function selected_users($id)
          {
             $this->chat_id = $id;
       //marking our messaeges as readed
             Message::where('statu','unreaded')
                    ->where('to_user',Auth::user()->id)
                    ->where('from_user',$id)
                    ->update(array('statu'=>'readed')); 
	// يعود عدد الرسائل المرئية على أصله مع كل تحديد جديد للمستخدم 
       // number of messages Iwant to show
             $this->paginate_var = 10;
       // scrollng to bottom بمجرد الدخول لمحادثة مع مستخدم جديد سيقوم بالسحب لأسفل المحادثة مباشرة
             $this->emit('scroll');
          }

// sending messages -- إرسال الرسائل
          public function send($id)
    {
            //---
    	  $message = new Message;
        $message->body = $this->message;
        $message->from_user = Auth::user()->id;
        $message->to_user = $this->chat_id;
        $message->save();
           //--
            
 //----------------------------Conversation------------------------
           //اذا كانت موجودة محادثة سابقة بيننا يقوم بإضافة اته الرسالة إليها و إلا ينشئ واحدة جديدة
           //check if there is an old conversation between us  
        $conv_old = \App\Conversation::where('first_user',$message->from_user)
                          ->where('second_user',$message->to_user)
                          ->orWhere('first_user',$message->to_user)
                          ->where('second_user',$message->from_user)
                          ->get()->first();
          // if there is an old convesation  between as , just link it to this message 
      if($conv_old)
{
   $conversation = \App\Conversation::find($conv_old->id);
   $conversation->last_message_time = $message->created_at;
   $conversation->save();
   $message->conversation_id = $conv_old->id;
   $message->save();

}
// else create a conversation and store our ids in it 
else
{
	$conversation = new \App\Conversation;
	$conversation->first_user = $message->from_user;
	$conversation->second_user =$message->to_user;
	$conversation->last_message_time = $message->created_at;
  $conversation->save();
  $message->conversation_id = $conversation->id;
  $message->save();
}
 //---------------------------- End Conversation------------------------
// إرسال الايفنت 
 // -------------------------------Event-----------------
            //get Unreaded messages 
        $recivedUnreadedMessages =Message::where('statu','unreaded')
                                         ->where('from_user',Auth::user()->id)
                                         ->where('to_user', $this->chat_id)
                                         ->count();
    	$this->message = '';
      $chat_user = User::find($this->chat_id);
            //sending event with message content and the user Isend it to , and the numb of the Unreaded Messages
     event(new \App\Events\Chat($this->chat_id,$message,$recivedUnreadedMessages,$chat_user));
    }
// مع كل صعود تام لأعلى المحادثة ستزيد 10 رسائل
	 
// Load more then 10 messaeges by scrolling to top
   public function loadMore()
       {
          $this->paginate_var = $this->paginate_var + 10;
          $this->emit('load');
       }
}

Database

1 //---Tables--------

    1-users['name' , 'avatar' , .......],
    2-messages ['id' , 'body' , 'from_user' , 'to_user' , 'created_at' , 'updated_at'],
    3-conversations ['id' , 'first_user' , 'second_user' , 'date_of_last_message'],
    
2 // ----------Relations---------
 
**User Model ::
       public function messages()
    {
        return $this->hasMany(Message::Class);
    }
    
**Convesation Model
         public function messages()
    {
        return $this->hasMany(Message::Class);
    }  

      public function fiirst_user()
  {
  	return $this->belongsTo('App\User','first_user');
  }

  public function seecond_user()
  {
  	return $this->belongsTo('App\User','second_user');
  }
  
**Message Model ::

  
   protected $fillable = array('statu');
    public function user()
  {
  	return $this->belongsTo('App\User');
  }

  public function froom_user()
  {
  	return $this->belongsTo('App\User','from_user');
  }

  public function too_user()
  {
  	return $this->belongsTo('App\User','to_user');
  }


    

Events --- Chat.php

<?php

namespace App\Events;

use Illuminate\Broadcasting\Channel;
use Illuminate\Broadcasting\InteractsWithSockets;
use Illuminate\Broadcasting\PresenceChannel;
use Illuminate\Broadcasting\PrivateChannel;
use Illuminate\Contracts\Broadcasting\ShouldBroadcast;
use Illuminate\Foundation\Events\Dispatchable;
use Illuminate\Queue\SerializesModels;

class Chat implements ShouldBroadcast
{
    use Dispatchable, InteractsWithSockets, SerializesModels;

    /**
     * Create a new event instance.
     *
     * @return void
     */
    public $user_id,$message,$recivedUnreadedMessages, $chat_user;
    public function __construct($id,$message,$recivedUnreadedMessages,$chat_user)
    {
       $this->user_id = $id;
       $this->message = $message;
       $this->recivedUnreadedMessages = $recivedUnreadedMessages;
       $this->chat_user = $message->froom_user;
    }

    /**
     * Get the channels the event should broadcast on.
     *
     * @return \Illuminate\Broadcasting\Channel|array
     */
    public function broadcastOn()
    {
    create privete chat with his id
        return new PrivateChannel('Chat.'.$this->user_id);
    }

    public function broadcastAs()
    {
        return 'Chat';
    }
}

Js

1-----------------
<script type="text/javascript">
//عندما أصعد إلى أعلى أشغل الايفنت ليظهر عدد أكبر من الرسائل
// when I scroll to top I fire the event load more to show more old messages 
  $('#messages').scroll(function() {
  
  var top =$('#messages').scrollTop();
   
    if ( top == 0) {
        window.livewire.emit('loadMore')
    }
});

</script>

2----------------
// عند تشغيل هذا الايفنت سيتم النزول تلقائيا إلى أسفل المحادثة
<script type="text/javascript">
// after selecting the user I fire the event scroll to scroll the messages box to bottom
    window.livewire.on('scroll', function()  {
      $('#messages').animate({
          scrollTop: $('#messages')[0].scrollHeight}, "slow");
})
</script>

3----------------
  // after selecting user marking or messages as read 
<script type="text/javascript">
                    $(".user").click(function(){
             $(this).find('p').html('');
           });
 </script>
 
 4-------------------
 
 <script type="text/javascript">
 // storing my id
 localStorage.setItem('uID',{{Auth::user()->id}});                   
       console.log (localStorage.getItem('uID')) ;
 // الانصات الى الايفنت على القناة الموسومة بالمعرف الخاص بي 
//lestening to the channel 'chat'.myId
window.Echo.private('Chat.'+localStorage.getItem('uID'))
               .listen('.Chat', (e) => {
                 // النزول الى أسفل مع قدوم أي رسالة جديدة 
                 //--scrolling to bottom to see the new message
               $('#messages').animate({
          scrollTop: $('#messages')[0].scrollHeight}, "slow");
               var id = @this.get('chat_id')
              console.log(e);
              //إذا كنت فاتح واجهة المحادثة مع الشخص الذي أرسل الرسالة ستظهر مباشرة .. و إلا  فسيزيد رقمن الرسائل غير المقروءة منه فقط
              // If the conversation betwwen my and the sender is open now ....
              
                 //-- appending the message tp messages box
                 
                  $("."+ e.message.from_user).html(`${e.recivedUnreadedMessages}`);
               if( e.message.from_user == id)
               {
                $('#messages-boxx').append(`
                  <div class="media w-50 mb-3">
        
          <div class="media-body ml-3">
            <div class="bg-light rounded py-2 px-3 mb-2">
              <p class="text-small mb-0 text-muted">${e.message.body}</p>
            </div>
            <p class="small text-muted">${e.message.created_at}</p>
          </div>
        </div>
      `);
               }
               //---- else increment the num of the enreded messages between us
               else
               {
                console.log("#user."+e.chat_user.id);
                console.log(e.recivedUnreadedMessages);

               }
          });
              

  
</script>

Views--Livewire--Chat.blade.php

// USERS SECTION

<div class="bg-white">

//-----swching between users section and recent conversation section by alpine Js-------
        <div class="messages-box" wire:ignore x-show.transition.in="tab === 'recent'">
          <button :class="{ 'active': tab === 'groups' }" @click="tab = 'all'">
           <img class="float-right"  src="{{asset('icons/icons/group.png')}}" width="40" > 
         </button>
//-----End swching between users section and recent conversation section by alpine Js-------
      // Conversations
        <div class="list-group users rounded-0" >
            @foreach($conversations as $conversation)
            
            //---- If I started the chat betwwen us show me the avatar of the other user
            
               @if(Auth::user()->id == $conversation->first_user)
            <a class="list-group-item  list-group-item-action   text-white rounded-0" wire:click="$emit('selected_users',{{$conversation->second_user}})" >
              <div class="media ">
                <img src="{{Voyager::image($conversation->seecond_user->avatar)}}"  alt="user" width="50" class="rounded-circle">
                <div class="media-body ml-4 user" >
                  <div class="d-flex align-items-center justify-content-between mb-1">
                    <h6 class="mb-0" style="color: black">{{$conversation->seecond_user->name}}</h6><small class="small font-weight-bold" style="color: black"></small>
                  </div>
                  <p class="badge badge-danger {{$conversation->second_user}}" style="color: black" id="{{'user'.$conversation->first_user}}" >
                    {{\App\Message::where('statu','unreaded')->where('to_user',Auth::user()->id)->where('from_user',$conversation->seecond_user->id)->count()}}
                  </p>
                </div>
              </div>
            </a>
            //---- If I was not the one who started the chat betwwen us show me the avatar of the other userwho did it
              @else
            <div class="list-group-item list-group-item-action  text-white rounded-0  user3" wire:click="$emit('selected_users',{{$conversation->first_user}})" >
              <div class="media " >
                <img src="{{Voyager::image($conversation->fiirst_user->avatar)}}"  alt="user" width="50" class="rounded-circle">
                <div class="media-body ml-4 user">
                  <div class="d-flex align-items-center justify-content-between mb-1" >
                    <h6 class="mb-0" style="color: black">{{$conversation->fiirst_user->name}}</h6><small class="small font-weight-bold" style="color: black"></small>
                  </div>
                  <p class="badge badge-danger {{$conversation->first_user}}" style="color: black"  id="{{'user.'.$conversation->first_user}}">
                    {{\App\Message::where('statu','unreaded')->where('to_user',Auth::user()->id)->where('from_user',$conversation->fiirst_user->id)->count()}}</p>
                </div>
              </div>
              <p></p>
            </div>
              @endif
            @endforeach
          </div>
        </div>
        // users section
      <div class="messages-box list-group users rounded-0" wire:ignore x-show.transition.in="tab === 'all'">
           <button class="btn" :class="{ 'active': tab === 'recent' }"  @click="tab = 'recent'" style="border:none;">
           <img class="float-right"  src="{{asset('icons/icons/back.png')}}" width="40" > 
         </button>
           
            @foreach($users as $user)
            <a class="list-group-item  list-group-item-action   text-white rounded-0" wire:click="$emit('selected_users',{{$user->id}})" >
              <div class="media ">
                <img src="{{Voyager::image($user->avatar)}}"  alt="user" width="50" class="rounded-circle">
                <div class="media-body ml-4 user" >
                  <div class="d-flex align-items-center justify-content-between mb-1">
                    <h6 class="mb-0" style="color: black">{{$user->name}}</h6><small class="small font-weight-bold" style="color: black"></small>
                  </div>
                </div>
              </div>
            </a>
            @endforeach
          </div>
      </div>
    </div>
    //------------------------------------------
    
    
    <!-- Chat Box-->
    <div class="col-7 px-0">
 <div class="py-5 chat-box bg-white messages " id="messages">
        <!-- Messages-->
 
       <div class="messages-boxx" id="messages-boxx"  >
        @foreach($messages as $message)                  
          @if(Auth::user()->id == $message->from_user)
        <!-- Reciever Message-->
        <div class="media w-50 ml-auto mb-3">
          <div class="media-body">
            <div class="bg-primary rounded py-2 px-3 mb-2">
              <p class="text-small mb-0 text-white">{{$message->body}}</p>
            </div>
            <p class="small text-muted">{{$message->created_at}}</p>
          </div>
        </div>
        
          @else
        <!-- Sender Message-->
        <div class="media w-50 mb-3">
          <img src="{{Voyager::image($message->froom_user->avatar)}}" alt="user" width="50" class="rounded-circle">
          <div class="media-body ml-3">
            <div class="bg-light rounded py-2 px-3 mb-2">
              <p class="text-small mb-0 text-muted">{{$message->body}}</p>
            </div>
            <p class="small text-muted">{{$message->created_at}}</p>
          </div>
        </div>
         @endif
           
       @endforeach
      </div>    
    </div>
         <div class="bg-light">
        
        <div class="input-group">
          <input type="text" placeholder="Type a message" aria-describedby="button-addon2" class="form-control rounded-0 border-0 py-4 bg-light" wire:model='message'>
          <div class="input-group-append">
             <button id="button-addon2" type="submit" class="btn btn-link" wire:click='send'> <i class="fa fa-paper-plane" ></i></button>
          </div>
                  </div>
      </div>
     

    </div>
          

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