<?php

namespace App\Casts;

use Illuminate\Contracts\Database\Eloquent\CastsAttributes;
use Illuminate\Support\Facades\Storage;
use Illuminate\Support\Str;

/**
 * 转换文件存储路径
 *
 * get: 返回全路径
 * set: 原样保存
 */
class StorageFile implements CastsAttributes
{
    protected $disk;

    public function __construct($disk = '')
    {
        $this->disk = $disk;
    }

    /**
     * Cast the given value.
     *
     * @param  \Illuminate\Database\Eloquent\Model  $model
     * @param  string  $key
     * @param  mixed  $value
     * @param  array  $attributes
     * @return string
     */
    public function get($model, $key, $value, $attributes)
    {
        return $value ? (Str::startsWith($value, ['http://', 'https://']) ? $value : Storage::disk($this->disk)->url($value)) : null;
    }

    /**
     * Prepare the given value for storage.
     *
     * @param  \Illuminate\Database\Eloquent\Model  $model
     * @param  string  $key
     * @param  string  $value
     * @param  array  $attributes
     * @return string
     */
    public function set($model, $key, $value, $attributes)
    {
        return $value;
    }
}