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/query/photos/queries.gen.go

@@ -0,0 +1,133 @@
+// Code generated by itergen, DO NOT EDIT.
+
+package photos
+
+import (
+	"context"
+
+	"github.com/go-faster/errors"
+
+	"go.mau.fi/mautrix-telegram/pkg/gotd/tg"
+)
+
+// No-op definition for keeping imports.
+var _ = context.Background()
+
+// Request is a parameter for Query.
+type Request struct {
+	Offset int
+	Limit  int
+}
+
+// Query is an abstraction for photos request.
+// NB: iterator mutates returned data (sorts, at least).
+type Query interface {
+	Query(ctx context.Context, req Request) (tg.PhotosPhotosClass, error)
+}
+
+// QueryFunc is a function adapter for Query.
+type QueryFunc func(ctx context.Context, req Request) (tg.PhotosPhotosClass, error)
+
+// Query implements Query interface.
+func (q QueryFunc) Query(ctx context.Context, req Request) (tg.PhotosPhotosClass, error) {
+	return q(ctx, req)
+}
+
+// QueryBuilder is a helper to create message queries.
+type QueryBuilder struct {
+	raw *tg.Client
+}
+
+// NewQueryBuilder creates new QueryBuilder.
+func NewQueryBuilder(raw *tg.Client) *QueryBuilder {
+	return &QueryBuilder{raw: raw}
+}
+
+// GetUserPhotosQueryBuilder is query builder of PhotosGetUserPhotos.
+type GetUserPhotosQueryBuilder struct {
+	raw       *tg.Client
+	req       tg.PhotosGetUserPhotosRequest
+	batchSize int
+	offset    int
+}
+
+// GetUserPhotos creates query builder of PhotosGetUserPhotos.
+func (q *QueryBuilder) GetUserPhotos(paramUserID tg.InputUserClass) *GetUserPhotosQueryBuilder {
+	b := &GetUserPhotosQueryBuilder{
+		raw:       q.raw,
+		batchSize: 1,
+		req:       tg.PhotosGetUserPhotosRequest{},
+	}
+
+	b.req.UserID = paramUserID
+	return b
+}
+
+// BatchSize sets buffer of message loaded from one request.
+// Be carefully, when set this limit, because Telegram does not return error if limit is too big,
+// so results can be incorrect.
+func (b *GetUserPhotosQueryBuilder) BatchSize(batchSize int) *GetUserPhotosQueryBuilder {
+	b.batchSize = batchSize
+	return b
+}
+
+// UserID sets UserID field of GetUserPhotos query.
+func (b *GetUserPhotosQueryBuilder) UserID(paramUserID tg.InputUserClass) *GetUserPhotosQueryBuilder {
+	b.req.UserID = paramUserID
+	return b
+}
+
+// Query implements Query interface.
+func (b *GetUserPhotosQueryBuilder) Query(ctx context.Context, req Request) (tg.PhotosPhotosClass, error) {
+	r := &tg.PhotosGetUserPhotosRequest{
+		Limit: req.Limit,
+	}
+
+	r.UserID = b.req.UserID
+	r.Offset = req.Offset
+	return b.raw.PhotosGetUserPhotos(ctx, r)
+}
+
+// Iter returns iterator using built query.
+func (b *GetUserPhotosQueryBuilder) Iter() *Iterator {
+	iter := NewIterator(b, b.batchSize)
+	iter = iter.Offset(b.offset)
+	return iter
+}
+
+// ForEach calls given callback on each iterator element.
+func (b *GetUserPhotosQueryBuilder) ForEach(ctx context.Context, cb func(context.Context, Elem) error) error {
+	iter := b.Iter()
+	for iter.Next(ctx) {
+		if err := cb(ctx, iter.Value()); err != nil {
+			return err
+		}
+	}
+	return iter.Err()
+}
+
+// Count fetches remote state to get number of elements.
+func (b *GetUserPhotosQueryBuilder) Count(ctx context.Context) (int, error) {
+	iter := b.Iter()
+	c, err := iter.Total(ctx)
+	if err != nil {
+		return 0, errors.Wrap(err, "get total")
+	}
+	return c, nil
+}
+
+// Collect creates iterator and collects all elements to slice.
+func (b *GetUserPhotosQueryBuilder) Collect(ctx context.Context) ([]Elem, error) {
+	iter := b.Iter()
+	c, err := iter.Total(ctx)
+	if err != nil {
+		return nil, errors.Wrap(err, "get total")
+	}
+
+	r := make([]Elem, 0, c)
+	for iter.Next(ctx) {
+		r = append(r, iter.Value())
+	}
+
+	return r, iter.Err()
+}