<?php

namespace App\Traits;

use App\Models\Liker;
use App\Contracts\Likerable;
use Illuminate\Database\Eloquent\Relations\MorphMany;

trait Canlike 
{
     //通用点赞功能
     public function like(Likerable $likerable):liker
     {   
         $Likers = new Liker([
             'likedable_id'   => $this->primaryId(),
             'likedable_type' => get_class(),
         ]);
         
         $likerable->Likers()->save($Likers);
         return $Likers;
     }

    //  取消点赞

    public function dislike(Likerable $likerable)
    {
        $result = Liker::where('likedable_id',$this->primaryId())
        ->where('likedable_type',get_class())
        ->where('like_id',$likerable->primaryId())
        ->where('like_type', get_class($likerable))
        ->delete();
        return $result;
    }

     //点赞列表
    public function likers(): MorphMany
    {
        return $this->morphMany(Liker::class,'likedable');
    }

    // 是否点赞
    public function hasLiked(Likerable $likerable)
    {
        $result = Liker::where('likedable_id',$this->primaryId())
        ->where('likedable_type',get_class())
        ->where('like_id',$likerable->primaryId())
        ->where('like_type', get_class($likerable))
        ->exists();
        return $result;
    }

 
}