<?php


namespace App\Traits;


use App\Exceptions\FatalException;
use App\MaterialBox;
use Illuminate\Contracts\Foundation\Application;
use Illuminate\Support\Collection;
use Illuminate\Support\Facades\Cache;

trait ServiceAppAop
{


    /**
     * 实例化一个service的入口，为了测试方便做出来的，这样测试时可以代入假的柱件替换service的实现
     * 应当在一般性用app的地方换成本方法才可以做到使用柱件
     * @param $targetService
     * @param $abstract
     * @return Application|mixed|string
     */
    public function instant(&$targetService, $abstract){
        if(!is_string($targetService)){
            if(empty($targetService))
                $targetService=app($abstract);
            return $targetService;
        }
        if(!is_string($abstract)){
            $this->$targetService=$abstract;
        }else{
            $this->$targetService=app($abstract);
        }
        return $targetService;
    }
    /**
     * 缓存过了
     * @param array $kvPairs
     * @return Collection|null
     */
    function get(array $kvPairs):?Collection{
        return Cache::remember($this->cachingKey($kvPairs), config('cache.expirations.serviceAutoCache'), function ()use($kvPairs) {
            $query = ($this->modelClass)::query();
            foreach ($kvPairs as $column => $value){
                if (is_array($value))$query->whereIn($column,$value);
                else $query->where($column,$value);
            }
            return $query->get();
        });
    }

    protected function cachingKey(array $kvPairs): string
    {
        ksort($kvPairs);
        return 'MaterialBox_'.md5(json_encode($kvPairs));
    }

    protected function clearCache(array $kvPairs){
        Cache::forget($this->cachingKey($kvPairs));
    }

    function create(array $kvPairs){
        $materialBox=$this->get($kvPairs);
        if($materialBox->isNotEmpty())
            return $materialBox->first();
        $this->clearCache($kvPairs);
        return ($this->modelClass)::query()->create($kvPairs);
    }

    function firstOrCreate(array $kvPairs){
        $materialBox=$this->get($kvPairs);
        if($materialBox->isNotEmpty())
            return $materialBox->first();
        $this->clearCache($kvPairs);
        return $this->create($kvPairs);
    }
}