chore: refresh gramsrv public release

internal/store/memory/langpack.go

@@ -0,0 +1,70 @@
+package memory
+
+import (
+	"context"
+	"sync"
+	"telesrv/internal/domain"
+)
+
+// LangPackStore 是 store.LangPackStore 的内存实现。
+type LangPackStore struct {
+	mu sync.RWMutex
+	m  map[string]domain.LangPack
+}
+
+// NewLangPackStore 创建内存 LangPackStore。
+func NewLangPackStore() *LangPackStore {
+	return &LangPackStore{m: make(map[string]domain.LangPack)}
+}
+
+func (s *LangPackStore) GetPack(_ context.Context, langPack, langCode string, fromVersion int) (domain.LangPack, error) {
+	s.mu.RLock()
+	pack := s.m[langPackKey(langPack, langCode)]
+	s.mu.RUnlock()
+	if pack.LangPack == "" {
+		return domain.LangPack{LangPack: langPack, LangCode: langCode, FromVersion: fromVersion}, nil
+	}
+	pack.FromVersion = fromVersion
+	if pack.Version <= fromVersion {
+		pack.Strings = nil
+	} else {
+		pack.Strings = append([]domain.LangPackString(nil), pack.Strings...)
+	}
+	return pack, nil
+}
+
+func (s *LangPackStore) GetStrings(_ context.Context, langPack, langCode string, keys []string) (domain.LangPack, error) {
+	s.mu.RLock()
+	pack := s.m[langPackKey(langPack, langCode)]
+	s.mu.RUnlock()
+	if pack.LangPack == "" {
+		return domain.LangPack{LangPack: langPack, LangCode: langCode}, nil
+	}
+	if len(keys) == 0 {
+		pack.Strings = append([]domain.LangPackString(nil), pack.Strings...)
+		return pack, nil
+	}
+	want := make(map[string]struct{}, len(keys))
+	for _, key := range keys {
+		want[key] = struct{}{}
+	}
+	out := domain.LangPack{LangPack: pack.LangPack, LangCode: pack.LangCode, Version: pack.Version}
+	for _, item := range pack.Strings {
+		if _, ok := want[item.Key]; ok {
+			out.Strings = append(out.Strings, item)
+		}
+	}
+	return out, nil
+}
+
+func (s *LangPackStore) UpsertPack(_ context.Context, pack domain.LangPack) error {
+	pack.Strings = append([]domain.LangPackString(nil), pack.Strings...)
+	s.mu.Lock()
+	s.m[langPackKey(pack.LangPack, pack.LangCode)] = pack
+	s.mu.Unlock()
+	return nil
+}
+
+func langPackKey(langPack, langCode string) string {
+	return langPack + "\x00" + langCode
+}