Function handleSettings

cmd/dash.go:1132–1382

handleSettings handles GET and POST requests for settings

(w http.ResponseWriter, r *http.Request)

// handleSettings handles GET and POST requests for settings
func handleSettings(w http.ResponseWriter, r *http.Request) {
	w.Header().Set("Content-Type", "application/json")

	switch r.Method {
	case "GET":
		// Read the current config file
		configPath := configFilePath()
		data, err := ioutil.ReadFile(configPath)
		if err != nil {
			// If file doesn't exist, return empty config
			data = []byte("{}")
		}

		var configData ConfigFile
		if err := json.Unmarshal(data, &configData); err != nil {
			http.Error(w, "Failed to parse config file", http.StatusInternalServerError)
			return
		}

		// Get list of timezones
		timezones := []string{}

		// Get the system's timezone first
		systemTZ := effectiveTimezoneLocationName().Name

		// Try to read from system timezone database
		zoneDirs := []string{
			"/usr/share/zoneinfo",
			"/usr/lib/zoneinfo",
			"/usr/share/lib/zoneinfo",
			"/etc/zoneinfo",
			"/var/db/timezone/zoneinfo", // macOS location
		}

		var zoneDir string
		for _, dir := range zoneDirs {
			if _, err := os.Stat(dir); err == nil {
				// Follow symlinks to get the actual directory
				realPath, err := filepath.EvalSymlinks(dir)
				if err == nil {
					zoneDir = realPath
					break
				}
			}
		}

		if zoneDir != "" {
			err := filepath.Walk(zoneDir, func(path string, info os.FileInfo, err error) error {
				if err != nil {
					return nil
				}
				// Skip the root directory itself
				if path == zoneDir {
					return nil
				}
				if !info.IsDir() {
					// Convert path to timezone name by removing the zoneDir prefix
					tz := strings.TrimPrefix(path, zoneDir+"/")