home: imp code

internal/home/config.go

@@ -324,7 +324,7 @@ var config = &configuration{
 	},
 	OSConfig:      &osConfig{},
 	SchemaVersion: currentSchemaVersion,
-	Theme:         Auto,
+	Theme:         ThemeAuto,
 }
 
 // getConfigFilename returns path to the current config file

internal/home/control.go

@@ -154,12 +154,30 @@ func handleStatus(w http.ResponseWriter, r *http.Request) {
 type Theme string
 
 // Allowed themes.
+//
+// Keep in sync with client/src/helpers/constants.js.
 const (
-	Auto  Theme = "auto"
-	Light Theme = "light"
-	Dark  Theme = "dark"
+	ThemeAuto  Theme = "auto"
+	ThemeLight Theme = "light"
+	ThemeDark  Theme = "dark"
 )
 
+// UnmarshalText implements the encoding.TextUnmarshaler interface for *Theme.
+func (t *Theme) UnmarshalText(b []byte) (err error) {
+	switch string(b) {
+	case "auto":
+		*t = ThemeAuto
+	case "dark":
+		*t = ThemeDark
+	case "light":
+		*t = ThemeLight
+	default:
+		// Go on and return an error.
+	}
+
+	return fmt.Errorf("invalid value %q, supported: %q, %q, %q", b, ThemeAuto, ThemeDark, ThemeLight)
+}
+
 // profileJSON is an object for /control/profile endpoints.
 type profileJSON struct {
 	Name     string `json:"name"`