<?php

namespace App\Common\Service;

use Illuminate\Support\Facades\Cache;

class FileService
{
    /**
     * @notes 补全路径
     * @param string $uri
     * @param string $type
     * @return string
     * @author 段誉
     * @date 2021/12/28 15:19
     * @remark
     * 场景一:补全域名路径,仅传参$uri;
     *      例: FileService::getFileUrl('uploads/img.png');
     *      返回 http://www.likeadmin.localhost/uploads/img.png
     *
     * 场景二:补全获取web根目录路径, 传参$uri 和 $type = public_path;
     *      例: FileService::getFileUrl('uploads/img.png', 'public_path');
     *      返回 /project-services/likeadmin/server/public/uploads/img.png
     *
     * 场景三:获取当前储存方式的域名
     *      例: FileService::getFileUrl();
     *      返回 http://www.likeadmin.localhost/
     */
    public static function getFileUrl(string $uri = '', string $type = ''): string
    {
        if (strstr($uri, 'http://')) return $uri;
        if (strstr($uri, 'https://')) return $uri;

        $default = Cache::get('STORAGE_DEFAULT');
        if (!$default) {
            $default = ConfigService::get('storage', 'default', 'local');
            Cache::set('STORAGE_DEFAULT', $default);
        }

        if ($default === 'local') {
            if ($type == 'public_path') {
                return public_path() . $uri;
            }
            $domain = request()->schemeAndHttpHost();
        } else {
            $storage = Cache::get('STORAGE_ENGINE');
            if (!$storage) {
                $storage = ConfigService::get('storage', $default);
                Cache::set('STORAGE_ENGINE', $storage);
            }
            $domain = $storage ? $storage['domain'] : '';
        }

        return self::format($domain, $uri);
    }

    /**
     * @notes 转相对路径
     * @param $uri
     * @return mixed
     */
    public static function setFileUrl($uri)
    {
        $default = ConfigService::get('storage', 'default', 'local');
        if ($default === 'local') {
            $domain = request()->schemeAndHttpHost();
            return str_replace($domain . '/', '', $uri);
        } else {
            $storage = ConfigService::get('storage', $default);
            return str_replace($storage['domain'] . '/', '', $uri);
        }
    }


    /**
     * @notes 格式化url
     * @param $domain
     * @param $uri
     * @return string
     */
    public static function format($domain, $uri)
    {
        // 处理域名
        $domainLen = strlen($domain);
        $domainRight = substr($domain, $domainLen - 1, 1);
        if ('/' == $domainRight) {
            $domain = substr_replace($domain, '', $domainLen - 1, 1);
        }

        // 处理uri
        $uriLeft = substr($uri, 0, 1);
        if ('/' == $uriLeft) {
            $uri = substr_replace($uri, '', 0, 1);
        }

        return trim($domain) . '/' . trim($uri);
    }

}
