<?php
namespace addon\theme_configurator\controller;

use app\event\controller\PluginAdminBaseController;
use think\Response;

/**
 * 后台上传控制器
 * 
 * 为主题配置插件提供图片上传功能
 */
class UploadController extends PluginAdminBaseController
{
    /**
     * 上传文件
     * 
     * @return Response
     */
    public function upload(): Response
    {
        try {
            // 获取上传的文件
            $file = $this->request->file('file');
            
            if (!$file) {
                return json([
                    'status' => 400,
                    'msg'    => lang_plugins('upload_no_file'),
                ]);
            }

            // 验证文件类型和大小
            $fileExt = strtolower($file->extension());
            $fileSize = $file->getSize();
            
            $allowedExts = ['jpg', 'jpeg', 'png', 'gif', 'webp', 'svg'];
            $maxSize = 10 * 1024 * 1024; // 10MB
            
            if (!in_array($fileExt, $allowedExts)) {
                return json([
                    'status' => 400,
                    'msg'    => lang_plugins('upload_validate_failed') . ': ' . '仅支持 jpg, jpeg, png, gif, webp, svg 格式',
                ]);
            }
            
            if ($fileSize > $maxSize) {
                return json([
                    'status' => 400,
                    'msg'    => lang_plugins('upload_validate_failed') . ': ' . '文件大小不能超过 10MB',
                ]);
            }

            // 构建保存路径
            $uploadPath = root_path('public') . 'upload' . DIRECTORY_SEPARATOR . 'theme';
            $dateDir = date('Ymd');
            $savePath = $uploadPath . DIRECTORY_SEPARATOR . $dateDir;
            
            // 创建目录
            if (!is_dir($savePath)) {
                if (!mkdir($savePath, 0755, true)) {
                    return json([
                        'status' => 400,
                        'msg'    => lang_plugins('upload_save_failed') . ': 无法创建上传目录',
                    ]);
                }
            }
            
            // 生成唯一文件名
            $fileName = md5(uniqid() . microtime()) . '.' . $fileExt;
            $fullPath = $savePath . DIRECTORY_SEPARATOR . $fileName;
            
            // 移动文件
            if (!$file->move($savePath, $fileName)) {
                return json([
                    'status' => 400,
                    'msg'    => lang_plugins('upload_save_failed'),
                ]);
            }
            
            // 构建URL路径
            $saveName = 'theme/' . $dateDir . '/' . $fileName;
            $url = '/upload/' . $saveName;

            return json([
                'status' => 200,
                'msg'    => lang_plugins('upload_success'),
                'data'   => [
                    'save_name' => $saveName,
                    'url'       => $url,
                    'image_url' => $url,
                ],
            ]);

        } catch (\Exception $e) {
            return json([
                'status' => 500,
                'msg'    => lang_plugins('upload_failed') . ': ' . $e->getMessage(),
            ]);
        }
    }
}