package common

import (
	"os"
	"path/filepath"
	"runtime"
)

const (
	// AppName 应用名称
	AppName = "u-desk"
)

// GetUserDataDir 获取用户数据目录
// 跨平台支持：Windows、macOS、Linux
func GetUserDataDir() string {
	var basePath string

	switch runtime.GOOS {
	case "windows":
		// Windows: %LOCALAPPDATA% 或 %APPDATA%
		basePath = os.Getenv("LOCALAPPDATA")
		if basePath == "" {
			basePath = os.Getenv("APPDATA")
		}
	case "darwin":
		// macOS: ~/Library/Application Support
		homeDir, err := os.UserHomeDir()
		if err == nil {
			basePath = filepath.Join(homeDir, "Library", "Application Support")
		}
	default:
		// Linux: ~/.config
		homeDir, err := os.UserHomeDir()
		if err == nil {
			basePath = filepath.Join(homeDir, ".config")
		}
	}

	if basePath == "" {
		basePath = "."
	}

	return filepath.Join(basePath, AppName)
}