package main

import (
	"u-desk/internal/filesystem"
	osssvc "u-desk/internal/ossdrv"
)

// ========== OSS 接口 ==========

func (a *App) ensureOssService() *osssvc.Service {
	a.mu.Lock()
	defer a.mu.Unlock()
	if a.ossService == nil {
		a.ossService = osssvc.NewService()
	}
	return a.ossService
}

// OssConnect 连接 OSS 存储
func (a *App) OssConnect(req OssConnectRequest) (string, error) {
	if err := a.ensureOssService().GetManager().Connect(req.Provider, req.AccessKey, req.SecretKey, req.Endpoint); err != nil {
		return "", err
	}
	return req.Provider, nil
}

// OssDisconnect 断开 OSS 连接
func (a *App) OssDisconnect(connID string) error {
	osssvc.GetManager().Disconnect(connID)
	return nil
}

// OssListDir OSS 列出目录
func (a *App) OssListDir(connID string, prefix string) ([]map[string]interface{}, error) {
	return a.ensureOssService().ListDir(connID, prefix)
}

// OssDownloadToTemp OSS 下载到临时文件
func (a *App) OssDownloadToTemp(connID string, key string) (string, error) {
	return a.ensureOssService().DownloadToTemp(connID, key)
}

// OssDownloadSiteForPreview OSS 下载 HTML 及其引用的资源到临时目录
func (a *App) OssDownloadSiteForPreview(connID string, key string) (string, error) {
	return a.ensureOssService().DownloadSiteForPreview(connID, key)
}

// OssDownloadToTempCached 带缓存的 OSS 下载（命中缓存直接返回本地路径）
func (a *App) OssDownloadToTempCached(connID string, key string, fileSize int64, modTime string) (string, error) {
	return a.ensureOssService().DownloadToTempCached(connID, key, fileSize, modTime)
}

// OssReadFile OSS 读取文件
func (a *App) OssReadFile(connID string, key string) (string, error) {
	return a.ensureOssService().ReadFile(connID, key)
}

// OssWriteFile OSS 写入文件
func (a *App) OssWriteFile(connID string, key string, content string) error {
	return a.ensureOssService().WriteFile(connID, key, content)
}

// OssWriteBase64File OSS 写入 base64 编码文件
func (a *App) OssWriteBase64File(connID string, key string, base64Content string) error {
	return a.ensureOssService().WriteBase64File(connID, key, base64Content)
}

// OssGetFileInfo OSS 获取文件信息
func (a *App) OssGetFileInfo(connID string, key string) (map[string]interface{}, error) {
	return a.ensureOssService().GetFileInfo(connID, key)
}

// OssCreateDir OSS 创建目录
func (a *App) OssCreateDir(connID string, dirPath string) (*filesystem.FileOperationResult, error) {
	return a.ensureOssService().CreateDir(connID, dirPath)
}

// OssCreateFile OSS 创建文件
func (a *App) OssCreateFile(connID string, filePath string) (*filesystem.FileOperationResult, error) {
	return a.ensureOssService().CreateFile(connID, filePath)
}

// OssDeletePath OSS 删除
func (a *App) OssDeletePath(connID string, key string) (*filesystem.FileOperationResult, error) {
	return a.ensureOssService().DeletePath(connID, key)
}

// OssRenamePath OSS 重命名
func (a *App) OssRenamePath(req OssRenamePathRequest) (*filesystem.FileOperationResult, error) {
	return a.ensureOssService().RenamePath(req.ConnID, req.OldPath, req.NewPath)
}

// OssGetCommonPaths OSS 获取常用路径
func (a *App) OssGetCommonPaths(connID string) (map[string]string, error) {
	return a.ensureOssService().GetCommonPaths(connID)
}

// OssGetSignedURL OSS 获取预签名 URL
func (a *App) OssGetSignedURL(connID string, key string) (string, error) {
	return a.ensureOssService().GetSignedURL(connID, key)
}