tiny-rdm/backend/storage/preferences.go

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package storage
import (
"fmt"
"gopkg.in/yaml.v3"
"log"
"reflect"
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"strings"
"sync"
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"tinyrdm/backend/consts"
"tinyrdm/backend/types"
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)
type PreferencesStorage struct {
storage *localStorage
mutex sync.Mutex
}
func NewPreferences() *PreferencesStorage {
return &PreferencesStorage{
storage: NewLocalStore("preferences.yaml"),
}
}
func (p *PreferencesStorage) DefaultPreferences() types.Preferences {
return types.NewPreferences()
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}
func (p *PreferencesStorage) getPreferences() (ret types.Preferences) {
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b, err := p.storage.Load()
if err != nil {
ret = p.DefaultPreferences()
return
}
if err = yaml.Unmarshal(b, &ret); err != nil {
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ret = p.DefaultPreferences()
return
}
return
}
// GetPreferences Get preferences from local
func (p *PreferencesStorage) GetPreferences() (ret types.Preferences) {
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p.mutex.Lock()
defer p.mutex.Unlock()
ret = p.getPreferences()
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ret.Behavior.AsideWidth = max(ret.Behavior.AsideWidth, consts.DEFAULT_ASIDE_WIDTH)
ret.Behavior.WindowWidth = max(ret.Behavior.WindowWidth, consts.MIN_WINDOW_WIDTH)
ret.Behavior.WindowHeight = max(ret.Behavior.WindowHeight, consts.MIN_WINDOW_HEIGHT)
return
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}
func (p *PreferencesStorage) setPreferences(pf *types.Preferences, key string, value any) error {
parts := strings.Split(key, ".")
if len(parts) > 0 {
var reflectValue reflect.Value
if reflect.TypeOf(pf).Kind() == reflect.Ptr {
reflectValue = reflect.ValueOf(pf).Elem()
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} else {
reflectValue = reflect.ValueOf(pf)
}
for i, part := range parts {
part = strings.ToUpper(part[:1]) + part[1:]
reflectValue = reflectValue.FieldByName(part)
if reflectValue.IsValid() {
if i == len(parts)-1 {
reflectValue.Set(reflect.ValueOf(value))
return nil
}
} else {
break
}
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}
}
return fmt.Errorf("invalid key path(%s)", key)
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}
func (p *PreferencesStorage) savePreferences(pf *types.Preferences) error {
b, err := yaml.Marshal(pf)
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if err != nil {
return err
}
if err = p.storage.Store(b); err != nil {
return err
}
return nil
}
// SetPreferences replace preferences
func (p *PreferencesStorage) SetPreferences(pf *types.Preferences) error {
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p.mutex.Lock()
defer p.mutex.Unlock()
return p.savePreferences(pf)
}
// UpdatePreferences update values by key paths, the key path use "." to indicate multiple level
func (p *PreferencesStorage) UpdatePreferences(values map[string]any) error {
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p.mutex.Lock()
defer p.mutex.Unlock()
pf := p.getPreferences()
for path, v := range values {
if err := p.setPreferences(&pf, path, v); err != nil {
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return err
}
}
log.Println("after save", pf)
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return p.savePreferences(&pf)
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}
func (p *PreferencesStorage) RestoreDefault() types.Preferences {
p.mutex.Lock()
defer p.mutex.Unlock()
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pf := p.DefaultPreferences()
p.savePreferences(&pf)
return pf
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}