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/scheduled.go

@@ -0,0 +1,110 @@
+package message
+
+import (
+	"context"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// ScheduledManager is a scheduled messages manager.
+type ScheduledManager struct {
+	peer   peerPromise
+	sender *Sender
+}
+
+// Send sends scheduled messages.
+func (m *ScheduledManager) Send(ctx context.Context, id int, ids ...int) (tg.UpdatesClass, error) {
+	p, err := m.peer(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "peer")
+	}
+
+	upd, err := m.sender.sendScheduledMessages(ctx, &tg.MessagesSendScheduledMessagesRequest{
+		Peer: p,
+		ID:   append([]int{id}, ids...),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "send scheduled messages")
+	}
+
+	return upd, nil
+}
+
+// Delete deletes scheduled messages.
+func (m *ScheduledManager) Delete(ctx context.Context, id int, ids ...int) (tg.UpdatesClass, error) {
+	p, err := m.peer(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "peer")
+	}
+
+	upd, err := m.sender.deleteScheduledMessages(ctx, &tg.MessagesDeleteScheduledMessagesRequest{
+		Peer: p,
+		ID:   append([]int{id}, ids...),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "delete scheduled messages")
+	}
+
+	return upd, nil
+}
+
+// Get gets scheduled messages.
+func (m *ScheduledManager) Get(ctx context.Context, id int, ids ...int) (tg.ModifiedMessagesMessages, error) {
+	p, err := m.peer(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "peer")
+	}
+
+	msgs, err := m.sender.getScheduledMessages(ctx, &tg.MessagesGetScheduledMessagesRequest{
+		Peer: p,
+		ID:   append([]int{id}, ids...),
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "get scheduled messages")
+	}
+
+	modified, ok := msgs.AsModified()
+	if !ok {
+		return nil, errors.Errorf("unexpected type %T", msgs)
+	}
+
+	return modified, nil
+}
+
+// HistoryWithHash gets scheduled messages history.
+func (m *ScheduledManager) HistoryWithHash(ctx context.Context, hash int64) (tg.ModifiedMessagesMessages, error) {
+	p, err := m.peer(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "peer")
+	}
+
+	msgs, err := m.sender.getScheduledHistory(ctx, &tg.MessagesGetScheduledHistoryRequest{
+		Peer: p,
+		Hash: hash,
+	})
+	if err != nil {
+		return nil, errors.Wrap(err, "get scheduled messages history")
+	}
+
+	modified, ok := msgs.AsModified()
+	if !ok {
+		return nil, errors.Errorf("unexpected type %T", msgs)
+	}
+
+	return modified, nil
+}
+
+// History gets scheduled messages history.
+func (m *ScheduledManager) History(ctx context.Context) (tg.ModifiedMessagesMessages, error) {
+	return m.HistoryWithHash(ctx, 0)
+}
+
+// Scheduled creates new ScheduledManager using resolved peer.
+func (b *RequestBuilder) Scheduled() *ScheduledManager {
+	return &ScheduledManager{
+		peer:   b.peer,
+		sender: b.sender,
+	}
+}