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/tg/tl_username_gen.go

@@ -0,0 +1,256 @@
+// Code generated by gotdgen, DO NOT EDIT.
+
+package tg
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"sort"
+	"strings"
+
+	"go.uber.org/multierr"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/bin"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdjson"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tdp"
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tgerr"
+)
+
+// No-op definition for keeping imports.
+var (
+	_ = bin.Buffer{}
+	_ = context.Background()
+	_ = fmt.Stringer(nil)
+	_ = strings.Builder{}
+	_ = errors.Is
+	_ = multierr.AppendInto
+	_ = sort.Ints
+	_ = tdp.Format
+	_ = tgerr.Error{}
+	_ = tdjson.Encoder{}
+)
+
+// Username represents TL type `username#b4073647`.
+// Contains information about a username.
+//
+// See https://core.telegram.org/constructor/username for reference.
+type Username struct {
+	// Flags, see TL conditional fields¹
+	//
+	// Links:
+	//  1) https://core.telegram.org/mtproto/TL-combinators#conditional-fields
+	Flags bin.Fields
+	// Whether the username is editable, meaning it wasn't bought on fragment¹.
+	//
+	// Links:
+	//  1) https://fragment.com
+	Editable bool
+	// Whether the username is active.
+	Active bool
+	// The username.
+	Username string
+}
+
+// UsernameTypeID is TL type id of Username.
+const UsernameTypeID = 0xb4073647
+
+// Ensuring interfaces in compile-time for Username.
+var (
+	_ bin.Encoder     = &Username{}
+	_ bin.Decoder     = &Username{}
+	_ bin.BareEncoder = &Username{}
+	_ bin.BareDecoder = &Username{}
+)
+
+func (u *Username) Zero() bool {
+	if u == nil {
+		return true
+	}
+	if !(u.Flags.Zero()) {
+		return false
+	}
+	if !(u.Editable == false) {
+		return false
+	}
+	if !(u.Active == false) {
+		return false
+	}
+	if !(u.Username == "") {
+		return false
+	}
+
+	return true
+}
+
+// String implements fmt.Stringer.
+func (u *Username) String() string {
+	if u == nil {
+		return "Username(nil)"
+	}
+	type Alias Username
+	return fmt.Sprintf("Username%+v", Alias(*u))
+}
+
+// FillFrom fills Username from given interface.
+func (u *Username) FillFrom(from interface {
+	GetEditable() (value bool)
+	GetActive() (value bool)
+	GetUsername() (value string)
+}) {
+	u.Editable = from.GetEditable()
+	u.Active = from.GetActive()
+	u.Username = from.GetUsername()
+}
+
+// TypeID returns type id in TL schema.
+//
+// See https://core.telegram.org/mtproto/TL-tl#remarks.
+func (*Username) TypeID() uint32 {
+	return UsernameTypeID
+}
+
+// TypeName returns name of type in TL schema.
+func (*Username) TypeName() string {
+	return "username"
+}
+
+// TypeInfo returns info about TL type.
+func (u *Username) TypeInfo() tdp.Type {
+	typ := tdp.Type{
+		Name: "username",
+		ID:   UsernameTypeID,
+	}
+	if u == nil {
+		typ.Null = true
+		return typ
+	}
+	typ.Fields = []tdp.Field{
+		{
+			Name:       "Editable",
+			SchemaName: "editable",
+			Null:       !u.Flags.Has(0),
+		},
+		{
+			Name:       "Active",
+			SchemaName: "active",
+			Null:       !u.Flags.Has(1),
+		},
+		{
+			Name:       "Username",
+			SchemaName: "username",
+		},
+	}
+	return typ
+}
+
+// SetFlags sets flags for non-zero fields.
+func (u *Username) SetFlags() {
+	if !(u.Editable == false) {
+		u.Flags.Set(0)
+	}
+	if !(u.Active == false) {
+		u.Flags.Set(1)
+	}
+}
+
+// Encode implements bin.Encoder.
+func (u *Username) Encode(b *bin.Buffer) error {
+	if u == nil {
+		return fmt.Errorf("can't encode username#b4073647 as nil")
+	}
+	b.PutID(UsernameTypeID)
+	return u.EncodeBare(b)
+}
+
+// EncodeBare implements bin.BareEncoder.
+func (u *Username) EncodeBare(b *bin.Buffer) error {
+	if u == nil {
+		return fmt.Errorf("can't encode username#b4073647 as nil")
+	}
+	u.SetFlags()
+	if err := u.Flags.Encode(b); err != nil {
+		return fmt.Errorf("unable to encode username#b4073647: field flags: %w", err)
+	}
+	b.PutString(u.Username)
+	return nil
+}
+
+// Decode implements bin.Decoder.
+func (u *Username) Decode(b *bin.Buffer) error {
+	if u == nil {
+		return fmt.Errorf("can't decode username#b4073647 to nil")
+	}
+	if err := b.ConsumeID(UsernameTypeID); err != nil {
+		return fmt.Errorf("unable to decode username#b4073647: %w", err)
+	}
+	return u.DecodeBare(b)
+}
+
+// DecodeBare implements bin.BareDecoder.
+func (u *Username) DecodeBare(b *bin.Buffer) error {
+	if u == nil {
+		return fmt.Errorf("can't decode username#b4073647 to nil")
+	}
+	{
+		if err := u.Flags.Decode(b); err != nil {
+			return fmt.Errorf("unable to decode username#b4073647: field flags: %w", err)
+		}
+	}
+	u.Editable = u.Flags.Has(0)
+	u.Active = u.Flags.Has(1)
+	{
+		value, err := b.String()
+		if err != nil {
+			return fmt.Errorf("unable to decode username#b4073647: field username: %w", err)
+		}
+		u.Username = value
+	}
+	return nil
+}
+
+// SetEditable sets value of Editable conditional field.
+func (u *Username) SetEditable(value bool) {
+	if value {
+		u.Flags.Set(0)
+		u.Editable = true
+	} else {
+		u.Flags.Unset(0)
+		u.Editable = false
+	}
+}
+
+// GetEditable returns value of Editable conditional field.
+func (u *Username) GetEditable() (value bool) {
+	if u == nil {
+		return
+	}
+	return u.Flags.Has(0)
+}
+
+// SetActive sets value of Active conditional field.
+func (u *Username) SetActive(value bool) {
+	if value {
+		u.Flags.Set(1)
+		u.Active = true
+	} else {
+		u.Flags.Unset(1)
+		u.Active = false
+	}
+}
+
+// GetActive returns value of Active conditional field.
+func (u *Username) GetActive() (value bool) {
+	if u == nil {
+		return
+	}
+	return u.Flags.Has(1)
+}
+
+// GetUsername returns value of Username field.
+func (u *Username) GetUsername() (value string) {
+	if u == nil {
+		return
+	}
+	return u.Username
+}