<?php
// +----------------------------------------------------------------------
// | YwxApp [ WE CAN DO IT JUST THINK ]
// +----------------------------------------------------------------------
// | Copyright (c) 2026-2036 http://ywxapp.cn All rights reserved.
// +----------------------------------------------------------------------
// | Author: ywxapp<admin@ywxapp.cn>
// +----------------------------------------------------------------------
namespace ywxapp\utils\storage;

use think\file\UploadedFile;

/**
 * LocalStorage 类
 *
 * @author ywxapp <admin@ywxapp.cn>
 */
class LocalStorage implements StorageInterface
{
    protected $config;

    
    public function __construct(array $config)
    {
        $this->config = $config;
    }

    /**
     * 解析存储根目录（支持绝对路径与相对 public 目录的相对路径）
     */
    protected function getRoot(): string
    {
        $root = $this->config['root'] ?? 'storage';
        // 绝对路径（Windows 盘符 或 Unix 根目录）直接使用，不再拼接 public_path
        if (preg_match('#^[a-zA-Z]:[\\\\/]|^/#', $root)) {
            return rtrim($root, '/\\');
        }
        return rtrim(public_path() . ltrim($root, '/\\'), '/\\');
    }

    
    public function upload(UploadedFile $file, string $path, array $options = []): array
    {
        // 移动文件到指定目录
        $root = $this->getRoot();
        $url  = $this->config['url'] ?? '/storage';

        $dir = $root . DIRECTORY_SEPARATOR . ltrim($path, '/\\');
        if (! is_dir($dir)) {
            mkdir($dir, 0777, true);
        }

        $ext      = $file->extension() ?: pathinfo($file->getOriginalName(), PATHINFO_EXTENSION);
        $savename = date('His') . '_' . uniqid() . '.' . $ext;
        $file->move($dir, $savename);

        $realName = $file->getSaveName() ?: $savename;
        $relative = ltrim($path, '/\\') . '/' . $realName;
        return [$realName, $relative, rtrim($url, '/') . '/' . $relative];
    }

    
    public function delete(string $path): bool
    {
        $fullPath = $this->getRoot() . DIRECTORY_SEPARATOR . ltrim($path, '/\\');
        return file_exists($fullPath) && unlink($fullPath);
    }

    
    public function getUrl(string $path): string
    {
        $domain = $this->config['domain'] ?? '';
        return rtrim($domain, '/') . '/' . ltrim($path, '/');
    }

    
    public function exists(string $path): bool
    {
        $fullPath = $this->getRoot() . DIRECTORY_SEPARATOR . ltrim($path, '/\\');
        return file_exists($fullPath);
    }
}