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service.go
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service.go
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// Content managed by Project Forge, see [projectforge.md] for details.
package theme
import (
"path/filepath"
"github.com/pkg/errors"
"github.com/samber/lo"
"admini.dev/admini/app/lib/filesystem"
"admini.dev/admini/app/util"
)
const KeyNew = "new"
type Service struct {
root string
files filesystem.FileLoader
cache Themes
}
func NewService(files filesystem.FileLoader) *Service {
return &Service{root: "themes", files: files}
}
func (s *Service) All(logger util.Logger) Themes {
s.loadIfNeeded(logger)
return s.cache
}
func (s *Service) Clear() {
s.cache = nil
}
func (s *Service) Get(theme string, logger util.Logger) *Theme {
return lo.FindOrElse(s.All(logger), ThemeDefault, func(t *Theme) bool {
return t.Key == theme
})
}
func (s *Service) Save(t *Theme, originalKey string, logger util.Logger) error {
if t.Key == ThemeDefault.Key {
return errors.New("can't overwrite default theme")
}
if t.Key == "" || t.Key == KeyNew {
t.Key = util.RandomString(12)
}
if originalKey != t.Key {
err := s.Remove(originalKey, logger)
if err != nil {
return err
}
}
b := util.ToJSONBytes(t, true)
err := s.files.WriteFile(filepath.Join(s.root, t.Key+".json"), b, filesystem.DefaultMode, true)
if err != nil {
logger.Warnf("can't save theme [%s]: %+v", t.Key, err)
}
s.cache = s.cache.Replace(t)
return nil
}
func (s *Service) loadIfNeeded(logger util.Logger) {
if s.cache == nil {
s.cache = Themes{ThemeDefault}
if s.files.IsDir(s.root) {
lo.ForEach(s.files.ListJSON(s.root, nil, true, logger), func(key string, _ int) {
t := &Theme{}
b, err := s.files.ReadFile(filepath.Join(s.root, key+".json"))
if err != nil {
logger.Warnf("can't load theme [%s]: %+v", key, err)
}
err = util.FromJSON(b, t)
if err != nil {
logger.Warnf("can't load theme [%s]: %+v", key, err)
}
t.Key = key
s.cache = append(s.cache, t)
})
}
s.cache = append(s.cache, lo.Filter(CatalogThemes, func(t *Theme, _ int) bool {
return !s.cache.Contains(t.Key)
})...)
s.cache.Sort()
}
}
func (s *Service) Remove(key string, logger util.Logger) error {
s.cache = s.cache.Remove(key)
if !s.FileExists(key) {
return nil
}
return s.files.Remove(filepath.Join(s.root, key+".json"), logger)
}
func (s *Service) FileExists(key string) bool {
return s.files.Exists(filepath.Join(s.root, key+".json"))
}
func ApplyMap(frm util.ValueMap) *Theme {
orig := ThemeDefault
l := orig.Light.Clone().ApplyMap(frm, "light-")
d := orig.Dark.Clone().ApplyMap(frm, "dark-")
return &Theme{Light: l, Dark: d}
}