package storage import ( "fmt" "gopkg.in/yaml.v3" "strings" "sync" ) type PreferencesStorage struct { storage *localStorage mutex sync.Mutex } func NewPreferences() *PreferencesStorage { return &PreferencesStorage{ storage: NewLocalStore("preferences.yaml"), } } func (p *PreferencesStorage) DefaultPreferences() map[string]any { return map[string]any{ "general": map[string]any{ "language": "auto", "font": "", "font_size": 14, "use_sys_proxy": false, "use_sys_proxy_http": false, "check_update": true, }, "editor": map[string]any{ "font": "", "font_size": 14, }, } } func (p *PreferencesStorage) getPreferences() (ret map[string]any) { b, err := p.storage.Load() if err != nil { ret = p.DefaultPreferences() return } if err = yaml.Unmarshal(b, &ret); err != nil { ret = p.DefaultPreferences() return } return } func (p *PreferencesStorage) flatPreferences(data map[string]any, prefix string) map[string]any { flattened := make(map[string]any) for key, value := range data { newKey := key if prefix != "" { newKey = prefix + "." + key } if nested, ok := value.(map[string]any); ok { nestedFlattened := p.flatPreferences(nested, newKey) for k, v := range nestedFlattened { flattened[k] = v } } else { flattened[newKey] = value } } return flattened } // GetPreferences Get preferences from local func (p *PreferencesStorage) GetPreferences() (ret map[string]any) { p.mutex.Lock() defer p.mutex.Unlock() pref := p.getPreferences() ret = p.flatPreferences(pref, "") return } func (p *PreferencesStorage) setPreferences(pf map[string]any, key string, value any) error { keyPath := strings.Split(key, ".") if len(keyPath) <= 0 { return fmt.Errorf("invalid key path(%s)", key) } var node any = pf for _, k := range keyPath[:len(keyPath)-1] { if subNode, ok := node.(map[string]any); ok { node = subNode[k] } else { return fmt.Errorf("invalid key path(%s)", key) } } if subNode, ok := node.(map[string]any); ok { subNode[keyPath[len(keyPath)-1]] = value } return nil } func (p *PreferencesStorage) savePreferences(pf map[string]any) error { b, err := yaml.Marshal(&pf) if err != nil { return err } if err = p.storage.Store(b); err != nil { return err } return nil } // SetPreferences assign value to key path, the key path use "." to indicate multiple level func (p *PreferencesStorage) SetPreferences(key string, value any) error { p.mutex.Lock() defer p.mutex.Unlock() pf := p.getPreferences() if err := p.setPreferences(pf, key, value); err != nil { return err } return p.savePreferences(pf) } // SetPreferencesN set multiple key path and value func (p *PreferencesStorage) SetPreferencesN(values map[string]any) error { p.mutex.Lock() defer p.mutex.Unlock() pf := p.getPreferences() for path, v := range values { if err := p.setPreferences(pf, path, v); err != nil { return err } } return p.savePreferences(pf) } func (p *PreferencesStorage) RestoreDefault() map[string]any { pf := p.DefaultPreferences() p.savePreferences(pf) return p.flatPreferences(pf, "") }