move gotd fork into repo. (#111)

- update to latest telegram layer
- remove some references to fields in tg.Entities that don't exist in
the schema
- originally added here:
https://github.com/beeper/td/commit/820929062a2ba0104397bc01235ab58a9cff780e
  - referenced here
-
https://github.com/mautrix/telegramgo/commit/124f0967ed195b5a380c9bd02e170ada9710dde3
-
https://github.com/mautrix/telegramgo/commit/4205047aab2e0639217148b5d125bfaab668bd8e

pkg/gotd/telegram/message/delete.go

@@ -0,0 +1,81 @@
+package message
+
+import (
+	"context"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/telegram/message/peer"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// DeleteBuilder is an intermediate builder to delete messages.
+// Unlike RevokeBuilder will keep messages for other users.
+type DeleteBuilder struct {
+	sender *Sender
+}
+
+// Delete creates new DeleteBuilder.
+func (s *Sender) Delete() *DeleteBuilder {
+	return &DeleteBuilder{sender: s}
+}
+
+// Messages deletes messages by given IDs, but keeps it for other users.
+//
+// NB: Telegram counts message IDs globally for private chats (but not for channels). This method does not check that
+// all given message IDs from one chat.
+func (b *DeleteBuilder) Messages(ctx context.Context, ids ...int) (*tg.MessagesAffectedMessages, error) {
+	r, err := b.sender.deleteMessages(ctx, &tg.MessagesDeleteMessagesRequest{
+		ID: ids,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "delete messages")
+	}
+
+	return r, nil
+}
+
+// RevokeBuilder is an intermediate builder to delete messages.
+// Unlike DeleteBuilder will not keep messages for other users.
+type RevokeBuilder struct {
+	builder *RequestBuilder
+}
+
+// Revoke creates new RevokeBuilder.
+func (b *RequestBuilder) Revoke() *RevokeBuilder {
+	return &RevokeBuilder{builder: b}
+}
+
+// Messages deletes messages by given IDs.
+//
+// NB: Telegram counts message IDs globally for private chats (but not for channels). This method does not check that
+// all given message IDs from one chat.
+func (b *RevokeBuilder) Messages(ctx context.Context, ids ...int) (*tg.MessagesAffectedMessages, error) {
+	p, err := b.builder.peer(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "peer")
+	}
+
+	ch, isChannel := peer.ToInputChannel(p)
+	if isChannel {
+		r, err := b.builder.sender.deleteChannelMessages(ctx, &tg.ChannelsDeleteMessagesRequest{
+			Channel: ch,
+			ID:      ids,
+		})
+		if err != nil {
+			return nil, errors.Wrap(err, "delete channel messages")
+		}
+
+		return r, nil
+	}
+
+	r, err := b.builder.sender.deleteMessages(ctx, &tg.MessagesDeleteMessagesRequest{
+		Revoke: true,
+		ID:     ids,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "delete messages")
+	}
+
+	return r, nil
+}