<?php
// +------------------------------------------------+
// |http://www.cjango.com                           |
// +------------------------------------------------+
// | 修复BUG不是一朝一夕的事情，等我喝醉了再说吧！  |
// +------------------------------------------------+
// | Author: 小陈叔叔 <Jason.Chen>                  |
// +------------------------------------------------+
namespace app\common\service;

use app\common\model\Storage as StorageModel;
use think\Config;
use think\Loader;
use think\Request;
use tools\Format;

class Storage extends _Init
{

    /**
     * 获取存储总量
     * @param  array  $map
     * @return string
     */
    public static function total($map = [])
    {
        return Format::byte(StorageModel::where($map)->sum('size'));
    }

    /**
     * 存储文件所有类型
     * @return array
     */
    public static function types()
    {
        return StorageModel::field('type')->distinct('type')->select();
    }

    /**
     * 磁盘剩余空间
     * @return string
     */
    public static function diskUse()
    {
        $total = disk_total_space(".");
        return round((($total - disk_free_space(".")) / $total) * 100, 2);
    }

    /**
     * 上传文件
     * @param  string  $name
     * @return string|array
     */
    public static function upload($name)
    {
        $File = Request::instance()->file($name);
        // 文件验证
        $validate = Loader::validate('Storage');
        if (!$validate->check([$name => $File])) {
            return $validate->getError();
        }

        // 检查是否有该文件，如果上传过，直接返回文件信息
        $info = StorageModel::where('hash', $File->hash())->find();
        if ($info) {
            $data = [
                'id'   => $info->id,
                'name' => $info->name,
                'path' => ltrim($info->path, '.'),
            ];
            return $data;
        }

        // 保存的规则
        $File->rule(function ($file) {
            $rule = explode('/', $file->getMime())[0] . '/';
            $rule .= date('Y-m/d');
            $rule .= '/' . $file->hash();
            $rule .= '.' . strtolower(pathinfo($file->getInfo('name'), PATHINFO_EXTENSION)); // 文件后缀
            return $rule;
        });

        $config = Config::get('storage');

        $fileInfo = $File->move($config['path'], true, $config['replace']);

        if ($fileInfo) {
            $data = [
                'type' => explode('/', $fileInfo->getMime())[0],
                'name' => rtrim($fileInfo->getInfo('name'), '.' . $fileInfo->getExtension()),
                'ext'  => $fileInfo->getExtension(),
                'hash' => $fileInfo->hash(),
                'path' => ltrim($fileInfo->getPathname(), '.'),
                'size' => $fileInfo->getSize(),
            ];
            // 保存文件信息
            if ($insert = StorageModel::create($data)) {
                $ret = [
                    'id'   => $insert->id,
                    'name' => $insert->name,
                    'path' => ltrim($insert->path, '.'),
                ];
                Logs::write('上传文件', $data);
                return $ret;
            } else {
                return '数据保存失败';
            }
        } else {
            return $File->getError();
        }
    }
}