<?php

namespace App\Traits;
use App\Contracts\Rewardable;
use App\Models\Reward;
use Illuminate\Database\Eloquent\Relations\MorphMany;

trait CanReward
{
    //通用打赏功能
    public function reward(Rewardable $rewardable, $amount, $comment_text=null):reward
    {   
        $reward = new Reward([
            'amount'    =>  $amount,
            'comment'   =>  $comment_text,
            'rewarded_id'   => $this->primaryId(),
            'rewarded_type' => get_class(),
        ]);
        
        $rewardable->rewards()->save($reward);
        return $reward;
    }

    //打赏列表
    public function rewards(): MorphMany
    {
        return $this->morphMany(Reward::class);
    }

    //打赏次数
    public function rewardCount(Rewardable $rewardable): int
    {
        return $this->rewards()
            ->where([
                'rewardable_id'   => $rewardable->primaryId(),
                'rewardable_type' => get_class($rewardable),
            ])
            ->count();
    }

    private function primaryId(): string
    {
        return (string)$this->getAttribute($this->primaryKey);
    }
}