Initial open source release

internal/rpc/langpack.go

@@ -0,0 +1,41 @@
+package rpc
+
+import (
+	"context"
+
+	"github.com/gotd/td/tg"
+)
+
+// registerLangpack 注册 langpack.* RPC handler。
+func (r *Router) registerLangpack(d *tg.ServerDispatcher) {
+	d.OnLangpackGetLangPack(func(ctx context.Context, req *tg.LangpackGetLangPackRequest) (*tg.LangPackDifference, error) {
+		if r.deps.LangPack == nil {
+			return &tg.LangPackDifference{LangCode: req.LangCode}, nil
+		}
+		pack, err := r.deps.LangPack.GetLangPack(ctx, req.LangPack, req.LangCode)
+		if err != nil {
+			return nil, internalErr()
+		}
+		return tgLangPackDifference(pack), nil
+	})
+	d.OnLangpackGetDifference(func(ctx context.Context, req *tg.LangpackGetDifferenceRequest) (*tg.LangPackDifference, error) {
+		if r.deps.LangPack == nil {
+			return &tg.LangPackDifference{LangCode: req.LangCode, FromVersion: req.FromVersion}, nil
+		}
+		pack, err := r.deps.LangPack.GetDifference(ctx, req.LangPack, req.LangCode, req.FromVersion)
+		if err != nil {
+			return nil, internalErr()
+		}
+		return tgLangPackDifference(pack), nil
+	})
+	d.OnLangpackGetStrings(func(ctx context.Context, req *tg.LangpackGetStringsRequest) ([]tg.LangPackStringClass, error) {
+		if r.deps.LangPack == nil {
+			return nil, nil
+		}
+		pack, err := r.deps.LangPack.GetStrings(ctx, req.LangPack, req.LangCode, req.Keys)
+		if err != nil {
+			return nil, internalErr()
+		}
+		return tgLangPackStrings(pack.Strings), nil
+	})
+}