Add support for games, among other updates.

bot.go

@@ -105,16 +105,17 @@ func (bot *BotAPI) makeMessageRequest(endpoint string, params url.Values) (Messa
 //
 // Requires the parameter to hold the file not be in the params.
 // File should be a string to a file path, a FileBytes struct,
-// or a FileReader struct.
+// a FileReader struct, or a url.URL.
 //
 // Note that if your FileReader has a size set to -1, it will read
 // the file into memory to calculate a size.
 func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldname string, file interface{}) (APIResponse, error) {
 	ms := multipartstreamer.New()
-	ms.WriteFields(params)
 
 	switch f := file.(type) {
 	case string:
+		ms.WriteFields(params)
+
 		fileHandle, err := os.Open(f)
 		if err != nil {
 			return APIResponse{}, err
@@ -128,9 +129,13 @@ func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldna
 
 		ms.WriteReader(fieldname, fileHandle.Name(), fi.Size(), fileHandle)
 	case FileBytes:
+		ms.WriteFields(params)
+
 		buf := bytes.NewBuffer(f.Bytes)
 		ms.WriteReader(fieldname, f.Name, int64(len(f.Bytes)), buf)
 	case FileReader:
+		ms.WriteFields(params)
+
 		if f.Size != -1 {
 			ms.WriteReader(fieldname, f.Name, f.Size, f.Reader)
 
@@ -145,6 +150,10 @@ func (bot *BotAPI) UploadFile(endpoint string, params map[string]string, fieldna
 		buf := bytes.NewBuffer(data)
 
 		ms.WriteReader(fieldname, f.Name, int64(len(data)), buf)
+	case url.URL:
+		params[fieldname] = f.String()
+
+		ms.WriteFields(params)
 	default:
 		return APIResponse{}, errors.New(ErrBadFileType)
 	}
@@ -424,6 +433,20 @@ func (bot *BotAPI) SetWebhook(config WebhookConfig) (APIResponse, error) {
 	return apiResp, nil
 }
 
+// GetWebhookInfo allows you to fetch information about a webhook and if
+// one currently is set, along with pending update count and error messages.
+func (bot *BotAPI) GetWebhookInfo() (WebhookInfo, error) {
+	resp, err := bot.MakeRequest("getWebhookInfo", url.Values{})
+	if err != nil {
+		return WebhookInfo{}, err
+	}
+
+	var info WebhookInfo
+	err = json.Unmarshal(resp.Result, &info)
+
+	return info, err
+}
+
 // GetUpdatesChan starts and returns a channel for getting updates.
 func (bot *BotAPI) GetUpdatesChan(config UpdateConfig) (<-chan Update, error) {
 	updatesChan := make(chan Update, 100)
@@ -495,8 +518,13 @@ func (bot *BotAPI) AnswerCallbackQuery(config CallbackConfig) (APIResponse, erro
 	v := url.Values{}
 
 	v.Add("callback_query_id", config.CallbackQueryID)
+	if config.Text != "" {
 		v.Add("text", config.Text)
+	}
 	v.Add("show_alert", strconv.FormatBool(config.ShowAlert))
+	if config.URL != "" {
+		v.Add("url", config.URL)
+	}
 
 	bot.debugLog("answerCallbackQuery", v, nil)
 
@@ -648,3 +676,18 @@ func (bot *BotAPI) UnbanChatMember(config ChatMemberConfig) (APIResponse, error)
 
 	return bot.MakeRequest("unbanChatMember", v)
 }
+
+// GetGameHighScores allows you to get the high scores for a game.
+func (bot *BotAPI) GetGameHighScores(config GetGameHighScoresConfig) ([]GameHighScore, error) {
+	v, _ := config.values()
+
+	resp, err := bot.MakeRequest(config.method(), v)
+	if err != nil {
+		return []GameHighScore{}, err
+	}
+
+	var highScores []GameHighScore
+	err = json.Unmarshal(resp.Result, &highScores)
+
+	return highScores, err
+}

configs.go

@@ -275,6 +275,7 @@ func (config PhotoConfig) method() string {
 // AudioConfig contains information about a SendAudio request.
 type AudioConfig struct {
 	BaseFile
+	Caption   string
 	Duration  int
 	Performer string
 	Title     string
@@ -431,6 +432,7 @@ func (config VideoConfig) method() string {
 // VoiceConfig contains information about a SendVoice request.
 type VoiceConfig struct {
 	BaseFile
+	Caption  string
 	Duration int
 }
 
@@ -539,6 +541,90 @@ func (config ContactConfig) method() string {
 	return "sendContact"
 }
 
+// GameConfig allows you to send a game.
+type GameConfig struct {
+	BaseChat
+	GameShortName string
+}
+
+func (config GameConfig) values() (url.Values, error) {
+	v, _ := config.BaseChat.values()
+
+	v.Add("game_short_name", config.GameShortName)
+
+	return v, nil
+}
+
+func (config GameConfig) method() string {
+	return "sendGame"
+}
+
+// SetGameScoreConfig allows you to update the game score in a chat.
+type SetGameScoreConfig struct {
+	UserID          int
+	Score           int
+	ChatID          int
+	ChannelUsername string
+	MessageID       int
+	InlineMessageID string
+	EditMessage     bool
+}
+
+func (config SetGameScoreConfig) values() (url.Values, error) {
+	v := url.Values{}
+
+	v.Add("user_id", strconv.Itoa(config.UserID))
+	v.Add("score", strconv.Itoa(config.Score))
+	if config.InlineMessageID == "" {
+		if config.ChannelUsername == "" {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		} else {
+			v.Add("chat_id", config.ChannelUsername)
+		}
+		v.Add("message_id", strconv.Itoa(config.MessageID))
+	} else {
+		v.Add("inline_message_id", config.InlineMessageID)
+	}
+	v.Add("edit_message", strconv.FormatBool(config.EditMessage))
+
+	return v, nil
+}
+
+func (config SetGameScoreConfig) method() string {
+	return "setGameScore"
+}
+
+// GetGameHighScoresConfig allows you to fetch the high scores for a game.
+type GetGameHighScoresConfig struct {
+	UserID          int
+	ChatID          int
+	ChannelUsername string
+	MessageID       int
+	InlineMessageID string
+}
+
+func (config GetGameHighScoresConfig) values() (url.Values, error) {
+	v := url.Values{}
+
+	v.Add("user_id", strconv.Itoa(config.UserID))
+	if config.InlineMessageID == "" {
+		if config.ChannelUsername == "" {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		} else {
+			v.Add("chat_id", config.ChannelUsername)
+		}
+		v.Add("message_id", strconv.Itoa(config.MessageID))
+	} else {
+		v.Add("inline_message_id", config.InlineMessageID)
+	}
+
+	return v, nil
+}
+
+func (config GetGameHighScoresConfig) method() string {
+	return "getGameHighScores"
+}
+
 // ChatActionConfig contains information about a SendChatAction request.
 type ChatActionConfig struct {
 	BaseChat
@@ -669,6 +755,7 @@ type CallbackConfig struct {
 	CallbackQueryID string `json:"callback_query_id"`
 	Text            string `json:"text"`
 	ShowAlert       bool   `json:"show_alert"`
+	URL             string `json:"url"`
 }
 
 // ChatMemberConfig contains information about a user in a chat for use

types.go

@@ -16,6 +16,13 @@ type APIResponse struct {
 	Result      json.RawMessage     `json:"result"`
 	ErrorCode   int                 `json:"error_code"`
 	Description string              `json:"description"`
+	Parameters  *ResponseParameters `json:"parameters"`
+}
+
+// ResponseParameters are various errors that can be returned in APIResponse.
+type ResponseParameters struct {
+	MigrateToChatID int `json:"migrate_to_chat_id"` // optional
+	RetryAfter      int `json:"retry_after"`        // optional
 }
 
 // Update is an update response, from GetUpdates.
@@ -67,6 +74,7 @@ type Chat struct {
 	UserName            string `json:"username"`                       // optional
 	FirstName           string `json:"first_name"`                     // optional
 	LastName            string `json:"last_name"`                      // optional
+	AllMembersAreAdmins bool   `json:"all_members_are_administrators"` // optional
 }
 
 // IsPrivate returns if the Chat is a private conversation.
@@ -110,6 +118,7 @@ type Message struct {
 	Entities              *[]MessageEntity `json:"entities"`                // optional
 	Audio                 *Audio           `json:"audio"`                   // optional
 	Document              *Document        `json:"document"`                // optional
+	Game                  *Game            `json:"game"`                    // optional
 	Photo                 *[]PhotoSize     `json:"photo"`                   // optional
 	Sticker               *Sticker         `json:"sticker"`                 // optional
 	Video                 *Video           `json:"video"`                   // optional
@@ -324,11 +333,15 @@ type InlineKeyboardMarkup struct {
 //
 // Note that some values are references as even an empty string
 // will change behavior.
+//
+// CallbackGame, if set, MUST be first button in first row.
 type InlineKeyboardButton struct {
 	Text                         string        `json:"text"`
 	URL                          *string       `json:"url,omitempty"`                    // optional
 	CallbackData                 *string       `json:"callback_data,omitempty"`          // optional
 	SwitchInlineQuery            *string       `json:"switch_inline_query,omitempty"`    // optional
+	SwitchInlineQueryCurrentChat *string       `json:"switch_inline_query_current_chat"` // optional
+	CallbackGame                 *CallbackGame `json:"callback_game"`                    // optional
 }
 
 // CallbackQuery is data sent when a keyboard button with callback data
@@ -338,7 +351,9 @@ type CallbackQuery struct {
 	From            *User    `json:"from"`
 	Message         *Message `json:"message"`           // optional
 	InlineMessageID string   `json:"inline_message_id"` // optional
+	ChatInstance    string   `json:"chat_instance"`
 	Data            string   `json:"data"`            // optional
+	GameShortName   string   `json:"game_short_name"` // optional
 }
 
 // ForceReply allows the Bot to have users directly reply to it without
@@ -369,6 +384,49 @@ func (chat ChatMember) HasLeft() bool { return chat.Status == "left" }
 // WasKicked returns if the ChatMember was kicked from the chat.
 func (chat ChatMember) WasKicked() bool { return chat.Status == "kicked" }
 
+// Game is a game within Telegram.
+type Game struct {
+	Title        string          `json:"title"`
+	Description  string          `json:"description"`
+	Photo        []PhotoSize     `json:"photo"`
+	Text         string          `json:"text"`
+	TextEntities []MessageEntity `json:"text_entities"`
+	Animation    Animation       `json:"animation"`
+}
+
+// Animation is a GIF animation demonstrating the game.
+type Animation struct {
+	FileID   string    `json:"file_id"`
+	Thumb    PhotoSize `json:"thumb"`
+	FileName string    `json:"file_name"`
+	MimeType string    `json:"mime_type"`
+	FileSize int       `json:"file_size"`
+}
+
+// GameHighScore is a user's score and position on the leaderboard.
+type GameHighScore struct {
+	Position int  `json:"position"`
+	User     User `json:"user"`
+	Score    int  `json:"score"`
+}
+
+// CallbackGame is for starting a game in an inline keyboard button.
+type CallbackGame struct{}
+
+// WebhookInfo is information about a currently set webhook.
+type WebhookInfo struct {
+	URL                  string `json:"url"`
+	HasCustomCertificate bool   `json:"has_custom_certificate"`
+	PendingUpdateCount   int    `json:"pending_update_count"`
+	LastErrorDate        int    `json:"last_error_date"`    // optional
+	LastErrorMessage     string `json:"last_error_message"` // optional
+}
+
+// IsSet returns true if a webhook is currently set.
+func (info WebhookInfo) IsSet() bool {
+	return info.URL != ""
+}
+
 // InlineQuery is a Query from Telegram for an inline request.
 type InlineQuery struct {
 	ID       string    `json:"id"`
@@ -460,6 +518,7 @@ type InlineQueryResultAudio struct {
 	ID                  string                `json:"id"`        // required
 	URL                 string                `json:"audio_url"` // required
 	Title               string                `json:"title"`     // required
+	Caption             string                `json:"caption"`
 	Performer           string                `json:"performer"`
 	Duration            int                   `json:"audio_duration"`
 	ReplyMarkup         *InlineKeyboardMarkup `json:"reply_markup,omitempty"`
@@ -472,6 +531,7 @@ type InlineQueryResultVoice struct {
 	ID                  string                `json:"id"`        // required
 	URL                 string                `json:"voice_url"` // required
 	Title               string                `json:"title"`     // required
+	Caption             string                `json:"caption"`
 	Duration            int                   `json:"voice_duration"`
 	ReplyMarkup         *InlineKeyboardMarkup `json:"reply_markup,omitempty"`
 	InputMessageContent interface{}           `json:"input_message_content,omitempty"`
@@ -507,6 +567,14 @@ type InlineQueryResultLocation struct {
 	ThumbHeight         int                   `json:"thumb_height"`
 }
 
+// InlineQueryResultGame is an inline query response game.
+type InlineQueryResultGame struct {
+	Type          string                `json:"type"`
+	ID            string                `json:"id"`
+	GameShortName string                `json:"game_short_name"`
+	ReplyMarkup   *InlineKeyboardMarkup `json:"reply_markup"`
+}
+
 // ChosenInlineResult is an inline query result chosen by a User
 type ChosenInlineResult struct {
 	ResultID        string    `json:"result_id"`