<?php
  
  namespace App\Models;
  
  use Illuminate\Database\Eloquent\Factories\HasFactory;
  use Illuminate\Database\Eloquent\Model;
  
  class Chat extends Model
  {
      use HasFactory;
  
      protected $fillable = [
          'user_id',
          'to_user_id',
          'is_removed',
          'is_fixed',
          'last_message_date',
          'last_message_id',
          'fixed_time'
      ];
  
      public function user() {
          return $this->belongsTo(User::class, 'to_user_id');
      }
  
      public function worker() {
          return $this->belongsTo(Worker::class, 'to_user_id', 'user_id');
      }
  
      public function employer() {
          return $this->belongsTo(Employer::class, 'to_user_id', 'user_id');
      }
  
      public function last_message() {
          return $this->belongsTo(Message::class, 'last_message_id');
      }

      public function unread_messages()
      {
          return $this->hasMany(Message::class, 'user_id', 'to_user_id');
      }

  }