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/peers/join_test.go

@@ -0,0 +1,83 @@
+package peers
+
+import (
+	"context"
+	"testing"
+
+	"github.com/stretchr/testify/require"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tgmock"
+)
+
+func TestManager_ImportInvite(t *testing.T) {
+	ctx := context.Background()
+	hash := "aboba"
+	expectCheck := func(m *tgmock.Mock) *tgmock.RequestBuilder {
+		return m.ExpectCall(&tg.MessagesCheckChatInviteRequest{
+			Hash: hash,
+		})
+	}
+	expectResult := func(m *tgmock.Mock, class tg.ChatInviteClass) *tgmock.Mock {
+		return expectCheck(m).ThenResult(class)
+	}
+
+	t.Run("CheckError", func(t *testing.T) {
+		a := require.New(t)
+		mock, m := testManager(t)
+
+		expectCheck(mock).ThenRPCErr(getTestError())
+		_, err := m.ImportInvite(ctx, hash)
+		a.Error(err)
+	})
+	t.Run("ChatInviteAlready", func(t *testing.T) {
+		a := require.New(t)
+		mock, m := testManager(t)
+
+		testChat := getTestChannel()
+		expectResult(mock, &tg.ChatInviteAlready{
+			Chat: testChat,
+		})
+		r, err := m.ImportInvite(ctx, hash)
+		a.NoError(err)
+		a.Equal(testChat.ID, r.ID())
+	})
+
+	testImport := func(testChat *tg.Chat, invite tg.ChatInviteClass) func(t *testing.T) {
+		return func(t *testing.T) {
+			a := require.New(t)
+			mock, m := testManager(t)
+
+			expectResult(mock, invite).ExpectCall(&tg.MessagesImportChatInviteRequest{
+				Hash: hash,
+			}).ThenRPCErr(getTestError())
+			_, err := m.ImportInvite(ctx, hash)
+			a.Error(err)
+
+			expectResult(mock, invite).ExpectCall(&tg.MessagesImportChatInviteRequest{
+				Hash: hash,
+			}).ThenResult(&tg.Updates{
+				Chats: []tg.ChatClass{testChat},
+			})
+			r, err := m.ImportInvite(ctx, hash)
+			a.NoError(err)
+			a.Equal(testChat.ID, r.ID())
+		}
+	}
+
+	testChat := getTestChat()
+	t.Run("ChatInvite", testImport(testChat, &tg.ChatInvite{
+		Channel:           false,
+		Broadcast:         false,
+		Public:            false,
+		Megagroup:         false,
+		RequestNeeded:     false,
+		Title:             testChat.Title,
+		About:             "",
+		Photo:             &tg.PhotoEmpty{},
+		ParticipantsCount: testChat.ParticipantsCount,
+	}))
+	t.Run("ChatInvitePeek", testImport(testChat, &tg.ChatInvitePeek{
+		Chat: testChat,
+	}))
+}