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package telebot
import (
"encoding/json"
"strconv"
)
// Sticker object represents a WebP image, so-called sticker.
type Sticker struct {
File
Width int `json:"width"`
Height int `json:"height"`
Animated bool `json:"is_animated"`
Thumbnail *Photo `json:"thumb"`
Emoji string `json:"emoji"`
SetName string `json:"set_name"`
MaskPosition *MaskPosition `json:"mask_position"`
}
// StickerSet represents a sticker set.
type StickerSet struct {
Name string `json:"name"`
Title string `json:"title"`
Animated bool `json:"is_animated"`
Stickers []Sticker `json:"stickers"`
Thumbnail *Photo `json:"thumb"`
PNG *File `json:"png_sticker"`
TGS *File `json:"tgs_sticker"`
Emojis string `json:"emojis"`
ContainsMasks bool `json:"contains_masks"`
MaskPosition *MaskPosition `json:"mask_position"`
}
// MaskPosition describes the position on faces where
// a mask should be placed by default.
type MaskPosition struct {
Feature MaskFeature `json:"point"`
XShift float32 `json:"x_shift"`
YShift float32 `json:"y_shift"`
Scale float32 `json:"scale"`
}
// UploadStickerFile uploads a .PNG file with a sticker for later use.
func (b *Bot) UploadStickerFile(to Recipient, png *File) (*File, error) {
files := map[string]File{
"png_sticker": *png,
}
params := map[string]string{
"user_id": to.Recipient(),
}
data, err := b.sendFiles("uploadStickerFile", files, params)
if err != nil {
return nil, err
}
var resp struct {
Result File
}
if err := json.Unmarshal(data, &resp); err != nil {
return nil, wrapError(err)
}
return &resp.Result, nil
}
// GetStickerSet returns a StickerSet on success.
func (b *Bot) GetStickerSet(name string) (*StickerSet, error) {
data, err := b.Raw("getStickerSet", map[string]string{"name": name})
if err != nil {
return nil, err
}
var resp struct {
Result *StickerSet
}
if err := json.Unmarshal(data, &resp); err != nil {
return nil, wrapError(err)
}
return resp.Result, nil
}
// CreateNewStickerSet creates a new sticker set.
func (b *Bot) CreateNewStickerSet(to Recipient, s StickerSet) error {
files := make(map[string]File)
if s.PNG != nil {
files["png_sticker"] = *s.PNG
}
if s.TGS != nil {
files["tgs_sticker"] = *s.TGS
}
params := map[string]string{
"user_id": to.Recipient(),
"name": s.Name,
"title": s.Title,
"emojis": s.Emojis,
"contains_masks": strconv.FormatBool(s.ContainsMasks),
}
if s.MaskPosition != nil {
data, err := json.Marshal(&s.MaskPosition)
if err != nil {
return err
}
params["mask_position"] = string(data)
}
_, err := b.sendFiles("createNewStickerSet", files, params)
return err
}
// AddStickerToSet adds new sticker to existing sticker set.
func (b *Bot) AddStickerToSet(to Recipient, s StickerSet) error {
files := make(map[string]File)
if s.PNG != nil {
files["png_sticker"] = *s.PNG
} else if s.TGS != nil {
files["tgs_sticker"] = *s.TGS
}
params := map[string]string{
"user_id": to.Recipient(),
"name": s.Name,
"emojis": s.Emojis,
}
if s.MaskPosition != nil {
data, err := json.Marshal(&s.MaskPosition)
if err != nil {
return err
}
params["mask_position"] = string(data)
}
_, err := b.sendFiles("addStickerToSet", files, params)
return err
}
// SetStickerPositionInSet moves a sticker in set to a specific position.
func (b *Bot) SetStickerPositionInSet(sticker string, position int) error {
params := map[string]string{
"sticker": sticker,
"position": strconv.Itoa(position),
}
_, err := b.Raw("setStickerPositionInSet", params)
return err
}
// DeleteStickerFromSet deletes sticker from set created by the bot.
func (b *Bot) DeleteStickerFromSet(sticker string) error {
_, err := b.Raw("deleteStickerFromSet", map[string]string{"sticker": sticker})
return err
}
// SetStickerSetThumb sets the thumbnail of a sticker set.
// Animated thumbnails can be set for animated sticker sets only.
//
// Thumbnail must be a PNG image, up to 128 kilobytes in size
// and have width and height exactly 100px, or a TGS animation
// up to 32 kilobytes in size.
//
// Animated sticker set thumbnail can't be uploaded via HTTP URL.
//
func (b *Bot) SetStickerSetThumb(to Recipient, s StickerSet) error {
files := map[string]File{}
if s.PNG != nil {
files["thumb"] = *s.PNG
} else if s.TGS != nil {
files["thumb"] = *s.TGS
}
params := map[string]string{
"name": s.Name,
"user_id": to.Recipient(),
}
_, err := b.sendFiles("setStickerSetThumb", files, params)
return err
}