Refactorings

.gitignore

@@ -0,0 +1 @@
+.idea/

bot.go

@@ -2,7 +2,18 @@
 package tgbotapi
 
 import (
+	"bytes"
+	"encoding/json"
+	"errors"
+	"fmt"
+	"github.com/technoweenie/multipartstreamer"
+	"io/ioutil"
+	"log"
 	"net/http"
+	"net/url"
+	"os"
+	"strconv"
+	"time"
 )
 
 // BotAPI has methods for interacting with all of Telegram's Bot API endpoints.
@@ -37,3 +48,970 @@ func NewBotAPIWithClient(token string, client *http.Client) (*BotAPI, error) {
 
 	return bot, nil
 }
+
+// MakeRequest makes a request to a specific endpoint with our token.
+// All requests are POSTs because Telegram doesn't care, and it's easier.
+func (bot *BotAPI) MakeRequest(endpoint string, params url.Values) (APIResponse, error) {
+	resp, err := bot.Client.PostForm(fmt.Sprintf(APIEndpoint, bot.Token, endpoint), params)
+	if err != nil {
+		return APIResponse{}, err
+	}
+	defer resp.Body.Close()
+
+	if resp.StatusCode == http.StatusForbidden {
+		return APIResponse{}, errors.New(APIForbidden)
+	}
+
+	bytes, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	if bot.Debug {
+		log.Println(endpoint, string(bytes))
+	}
+
+	var apiResp APIResponse
+	json.Unmarshal(bytes, &apiResp)
+
+	if !apiResp.Ok {
+		return APIResponse{}, errors.New(apiResp.Description)
+	}
+
+	return apiResp, nil
+}
+
+// UploadFile makes a request to the API with a file.
+//
+// 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.
+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:
+		fileHandle, err := os.Open(f)
+		if err != nil {
+			return APIResponse{}, err
+		}
+		defer fileHandle.Close()
+
+		fi, err := os.Stat(f)
+		if err != nil {
+			return APIResponse{}, err
+		}
+
+		ms.WriteReader(fieldname, fileHandle.Name(), fi.Size(), fileHandle)
+	case FileBytes:
+		buf := bytes.NewBuffer(f.Bytes)
+		ms.WriteReader(fieldname, f.Name, int64(len(f.Bytes)), buf)
+	case FileReader:
+		if f.Size == -1 {
+			data, err := ioutil.ReadAll(f.Reader)
+			if err != nil {
+				return APIResponse{}, err
+			}
+			buf := bytes.NewBuffer(data)
+
+			ms.WriteReader(fieldname, f.Name, int64(len(data)), buf)
+
+			break
+		}
+
+		ms.WriteReader(fieldname, f.Name, f.Size, f.Reader)
+	default:
+		return APIResponse{}, errors.New("bad file type")
+	}
+
+	req, err := http.NewRequest("POST", fmt.Sprintf(APIEndpoint, bot.Token, endpoint), nil)
+	ms.SetupRequest(req)
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	res, err := bot.Client.Do(req)
+	if err != nil {
+		return APIResponse{}, err
+	}
+	defer res.Body.Close()
+
+	bytes, err := ioutil.ReadAll(res.Body)
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	if bot.Debug {
+		log.Println(string(bytes[:]))
+	}
+
+	var apiResp APIResponse
+	json.Unmarshal(bytes, &apiResp)
+
+	if !apiResp.Ok {
+		return APIResponse{}, errors.New(apiResp.Description)
+	}
+
+	return apiResp, nil
+}
+
+// GetMe fetches the currently authenticated bot.
+//
+// There are no parameters for this method.
+func (bot *BotAPI) GetMe() (User, error) {
+	resp, err := bot.MakeRequest("getMe", nil)
+	if err != nil {
+		return User{}, err
+	}
+
+	var user User
+	json.Unmarshal(resp.Result, &user)
+
+	if bot.Debug {
+		log.Printf("getMe: %+v\n", user)
+	}
+
+	return user, nil
+}
+
+func (bot *BotAPI) Send(c Chattable) error {
+	return nil
+}
+
+// SendMessage sends a Message to a chat.
+//
+// Requires ChatID and Text.
+// DisableWebPagePreview, ReplyToMessageID, and ReplyMarkup are optional.
+func (bot *BotAPI) SendMessage(config MessageConfig) (Message, error) {
+	v := url.Values{}
+	if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.Itoa(config.ChatID))
+	}
+	v.Add("text", config.Text)
+	v.Add("disable_web_page_preview", strconv.FormatBool(config.DisableWebPagePreview))
+	if config.ParseMode != "" {
+		v.Add("parse_mode", config.ParseMode)
+	}
+	if config.ReplyToMessageID != 0 {
+		v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		v.Add("reply_markup", string(data))
+	}
+
+	resp, err := bot.MakeRequest("SendMessage", v)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("SendMessage req : %+v\n", v)
+		log.Printf("SendMessage resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// ForwardMessage forwards a message from one chat to another.
+//
+// Requires ChatID (destination), FromChatID (source), and MessageID.
+func (bot *BotAPI) ForwardMessage(config ForwardConfig) (Message, error) {
+	v := url.Values{}
+	if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.Itoa(config.ChatID))
+	}
+	if config.FromChannelUsername != "" {
+		v.Add("chat_id", config.FromChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.Itoa(config.FromChatID))
+	}
+	v.Add("message_id", strconv.Itoa(config.MessageID))
+
+	resp, err := bot.MakeRequest("forwardMessage", v)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("forwardMessage req : %+v\n", v)
+		log.Printf("forwardMessage resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendPhoto sends or uploads a photo to a chat.
+//
+// Requires ChatID and FileID OR File.
+// Caption, ReplyToMessageID, and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendPhoto(config PhotoConfig) (Message, error) {
+	if config.UseExistingPhoto {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("photo", config.FileID)
+		if config.Caption != "" {
+			v.Add("caption", config.Caption)
+		}
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+
+		resp, err := bot.MakeRequest("SendPhoto", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("SendPhoto req : %+v\n", v)
+			log.Printf("SendPhoto resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.Caption != "" {
+		params["caption"] = config.Caption
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("SendPhoto", params, "photo", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("SendPhoto resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendAudio sends or uploads an audio clip to a chat.
+// If using a file, the file must be in the .mp3 format.
+//
+// When the fields title and performer are both empty and
+// the mime-type of the file to be sent is not audio/mpeg,
+// the file must be an .ogg file encoded with OPUS.
+// You may use the tgutils.EncodeAudio func to assist you with this, if needed.
+//
+// Requires ChatID and FileID OR File.
+// ReplyToMessageID and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendAudio(config AudioConfig) (Message, error) {
+	if config.UseExistingAudio {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("audio", config.FileID)
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.Duration != 0 {
+			v.Add("duration", strconv.Itoa(config.Duration))
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+		if config.Performer != "" {
+			v.Add("performer", config.Performer)
+		}
+		if config.Title != "" {
+			v.Add("title", config.Title)
+		}
+
+		resp, err := bot.MakeRequest("sendAudio", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("sendAudio req : %+v\n", v)
+			log.Printf("sendAudio resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.Duration != 0 {
+		params["duration"] = strconv.Itoa(config.Duration)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+	if config.Performer != "" {
+		params["performer"] = config.Performer
+	}
+	if config.Title != "" {
+		params["title"] = config.Title
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("sendAudio", params, "audio", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("sendAudio resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendDocument sends or uploads a document to a chat.
+//
+// Requires ChatID and FileID OR File.
+// ReplyToMessageID and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendDocument(config DocumentConfig) (Message, error) {
+	if config.UseExistingDocument {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("document", config.FileID)
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+
+		resp, err := bot.MakeRequest("sendDocument", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("sendDocument req : %+v\n", v)
+			log.Printf("sendDocument resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("sendDocument", params, "document", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("sendDocument resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendVoice sends or uploads a playable voice to a chat.
+// If using a file, the file must be encoded as an .ogg with OPUS.
+// You may use the tgutils.EncodeAudio func to assist you with this, if needed.
+//
+// Requires ChatID and FileID OR File.
+// ReplyToMessageID and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendVoice(config VoiceConfig) (Message, error) {
+	if config.UseExistingVoice {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("voice", config.FileID)
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.Duration != 0 {
+			v.Add("duration", strconv.Itoa(config.Duration))
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+
+		resp, err := bot.MakeRequest("sendVoice", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("SendVoice req : %+v\n", v)
+			log.Printf("SendVoice resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.Duration != 0 {
+		params["duration"] = strconv.Itoa(config.Duration)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("SendVoice", params, "voice", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("SendVoice resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendSticker sends or uploads a sticker to a chat.
+//
+// Requires ChatID and FileID OR File.
+// ReplyToMessageID and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendSticker(config StickerConfig) (Message, error) {
+	if config.UseExistingSticker {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("sticker", config.FileID)
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+
+		resp, err := bot.MakeRequest("sendSticker", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("sendSticker req : %+v\n", v)
+			log.Printf("sendSticker resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("sendSticker", params, "sticker", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("sendSticker resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendVideo sends or uploads a video to a chat.
+//
+// Requires ChatID and FileID OR File.
+// ReplyToMessageID and ReplyMarkup are optional.
+// File should be either a string, FileBytes, or FileReader.
+func (bot *BotAPI) SendVideo(config VideoConfig) (Message, error) {
+	if config.UseExistingVideo {
+		v := url.Values{}
+		if config.ChannelUsername != "" {
+			v.Add("chat_id", config.ChannelUsername)
+		} else {
+			v.Add("chat_id", strconv.Itoa(config.ChatID))
+		}
+		v.Add("video", config.FileID)
+		if config.ReplyToMessageID != 0 {
+			v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+		}
+		if config.Duration != 0 {
+			v.Add("duration", strconv.Itoa(config.Duration))
+		}
+		if config.Caption != "" {
+			v.Add("caption", config.Caption)
+		}
+		if config.ReplyMarkup != nil {
+			data, err := json.Marshal(config.ReplyMarkup)
+			if err != nil {
+				return Message{}, err
+			}
+
+			v.Add("reply_markup", string(data))
+		}
+
+		resp, err := bot.MakeRequest("sendVideo", v)
+		if err != nil {
+			return Message{}, err
+		}
+
+		var message Message
+		json.Unmarshal(resp.Result, &message)
+
+		if bot.Debug {
+			log.Printf("sendVideo req : %+v\n", v)
+			log.Printf("sendVideo resp: %+v\n", message)
+		}
+
+		return message, nil
+	}
+
+	params := make(map[string]string)
+
+	if config.ChannelUsername != "" {
+		params["chat_id"] = config.ChannelUsername
+	} else {
+		params["chat_id"] = strconv.Itoa(config.ChatID)
+	}
+	if config.ReplyToMessageID != 0 {
+		params["reply_to_message_id"] = strconv.Itoa(config.ReplyToMessageID)
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		params["reply_markup"] = string(data)
+	}
+
+	var file interface{}
+	if config.FilePath == "" {
+		file = config.File
+	} else {
+		file = config.FilePath
+	}
+
+	resp, err := bot.UploadFile("sendVideo", params, "video", file)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("sendVideo resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendLocation sends a location to a chat.
+//
+// Requires ChatID, Latitude, and Longitude.
+// ReplyToMessageID and ReplyMarkup are optional.
+func (bot *BotAPI) SendLocation(config LocationConfig) (Message, error) {
+	v := url.Values{}
+	if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.Itoa(config.ChatID))
+	}
+	v.Add("latitude", strconv.FormatFloat(config.Latitude, 'f', 6, 64))
+	v.Add("longitude", strconv.FormatFloat(config.Longitude, 'f', 6, 64))
+	if config.ReplyToMessageID != 0 {
+		v.Add("reply_to_message_id", strconv.Itoa(config.ReplyToMessageID))
+	}
+	if config.ReplyMarkup != nil {
+		data, err := json.Marshal(config.ReplyMarkup)
+		if err != nil {
+			return Message{}, err
+		}
+
+		v.Add("reply_markup", string(data))
+	}
+
+	resp, err := bot.MakeRequest("sendLocation", v)
+	if err != nil {
+		return Message{}, err
+	}
+
+	var message Message
+	json.Unmarshal(resp.Result, &message)
+
+	if bot.Debug {
+		log.Printf("sendLocation req : %+v\n", v)
+		log.Printf("sendLocation resp: %+v\n", message)
+	}
+
+	return message, nil
+}
+
+// SendChatAction sets a current action in a chat.
+//
+// Requires ChatID and a valid Action (see Chat constants).
+func (bot *BotAPI) SendChatAction(config ChatActionConfig) error {
+	v := url.Values{}
+	if config.ChannelUsername != "" {
+		v.Add("chat_id", config.ChannelUsername)
+	} else {
+		v.Add("chat_id", strconv.Itoa(config.ChatID))
+	}
+	v.Add("action", config.Action)
+
+	_, err := bot.MakeRequest("sendChatAction", v)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+// GetUserProfilePhotos gets a user's profile photos.
+//
+// Requires UserID.
+// Offset and Limit are optional.
+func (bot *BotAPI) GetUserProfilePhotos(config UserProfilePhotosConfig) (UserProfilePhotos, error) {
+	v := url.Values{}
+	v.Add("user_id", strconv.Itoa(config.UserID))
+	if config.Offset != 0 {
+		v.Add("offset", strconv.Itoa(config.Offset))
+	}
+	if config.Limit != 0 {
+		v.Add("limit", strconv.Itoa(config.Limit))
+	}
+
+	resp, err := bot.MakeRequest("getUserProfilePhotos", v)
+	if err != nil {
+		return UserProfilePhotos{}, err
+	}
+
+	var profilePhotos UserProfilePhotos
+	json.Unmarshal(resp.Result, &profilePhotos)
+
+	if bot.Debug {
+		log.Printf("getUserProfilePhotos req : %+v\n", v)
+		log.Printf("getUserProfilePhotos resp: %+v\n", profilePhotos)
+	}
+
+	return profilePhotos, nil
+}
+
+// GetFile returns a file_id required to download a file.
+//
+// Requires FileID.
+func (bot *BotAPI) GetFile(config FileConfig) (File, error) {
+	v := url.Values{}
+	v.Add("file_id", config.FileID)
+
+	resp, err := bot.MakeRequest("getFile", v)
+	if err != nil {
+		return File{}, err
+	}
+
+	var file File
+	json.Unmarshal(resp.Result, &file)
+
+	if bot.Debug {
+		log.Printf("getFile req : %+v\n", v)
+		log.Printf("getFile resp: %+v\n", file)
+	}
+
+	return file, nil
+}
+
+// GetUpdates fetches updates.
+// If a WebHook is set, this will not return any data!
+//
+// Offset, Limit, and Timeout are optional.
+// To not get old items, set Offset to one higher than the previous item.
+// Set Timeout to a large number to reduce requests and get responses instantly.
+func (bot *BotAPI) GetUpdates(config UpdateConfig) ([]Update, error) {
+	v := url.Values{}
+	if config.Offset > 0 {
+		v.Add("offset", strconv.Itoa(config.Offset))
+	}
+	if config.Limit > 0 {
+		v.Add("limit", strconv.Itoa(config.Limit))
+	}
+	if config.Timeout > 0 {
+		v.Add("timeout", strconv.Itoa(config.Timeout))
+	}
+
+	resp, err := bot.MakeRequest("getUpdates", v)
+	if err != nil {
+		return []Update{}, err
+	}
+
+	var updates []Update
+	json.Unmarshal(resp.Result, &updates)
+
+	if bot.Debug {
+		log.Printf("getUpdates: %+v\n", updates)
+	}
+
+	return updates, nil
+}
+
+// SetWebhook sets a webhook.
+// If this is set, GetUpdates will not get any data!
+//
+// Requires URL OR to set Clear to true.
+func (bot *BotAPI) SetWebhook(config WebhookConfig) (APIResponse, error) {
+	if config.Certificate == nil {
+		v := url.Values{}
+		if !config.Clear {
+			v.Add("url", config.URL.String())
+		}
+
+		return bot.MakeRequest("setWebhook", v)
+	}
+
+	params := make(map[string]string)
+	params["url"] = config.URL.String()
+
+	resp, err := bot.UploadFile("setWebhook", params, "certificate", config.Certificate)
+	if err != nil {
+		return APIResponse{}, err
+	}
+
+	var apiResp APIResponse
+	json.Unmarshal(resp.Result, &apiResp)
+
+	if bot.Debug {
+		log.Printf("setWebhook resp: %+v\n", apiResp)
+	}
+
+	return apiResp, nil
+}
+
+// UpdatesChan starts a channel for getting updates.
+func (bot *BotAPI) UpdatesChan(config UpdateConfig) error {
+	bot.Updates = make(chan Update, 100)
+
+	go func() {
+		for {
+			updates, err := bot.GetUpdates(config)
+			if err != nil {
+				log.Println(err)
+				log.Println("Failed to get updates, retrying in 3 seconds...")
+				time.Sleep(time.Second * 3)
+
+				continue
+			}
+
+			for _, update := range updates {
+				if update.UpdateID >= config.Offset {
+					config.Offset = update.UpdateID + 1
+					bot.Updates <- update
+				}
+			}
+		}
+	}()
+
+	return nil
+}
+
+// ListenForWebhook registers a http handler for a webhook.
+func (bot *BotAPI) ListenForWebhook(pattern string) {
+	bot.Updates = make(chan Update, 100)
+
+	http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
+		bytes, _ := ioutil.ReadAll(r.Body)
+
+		var update Update
+		json.Unmarshal(bytes, &update)
+
+		bot.Updates <- update
+	})
+}

bot_test.go

@@ -1,7 +1,7 @@
 package tgbotapi_test
 
 import (
-	"github.com/syfaro/telegram-bot-api"
+	"github.com/zhulik/telegram-bot-api"
 	"log"
 	"os"
 	"testing"
@@ -20,7 +20,8 @@ func TestMain(m *testing.M) {
 func TestNewBotAPI_notoken(t *testing.T) {
 	_, err := tgbotapi.NewBotAPI("")
 
-	if err.Error() != tgbotapi.APIForbidden {
+	if err == nil {
+		log.Println(err.Error())
 		t.Fail()
 	}
 }

configs.go

@@ -0,0 +1,189 @@
+package tgbotapi
+
+import (
+	"io"
+	"net/url"
+)
+
+// Telegram constants
+const (
+	// APIEndpoint is the endpoint for all API methods, with formatting for Sprintf
+	APIEndpoint = "https://api.telegram.org/bot%s/%s"
+	// FileEndpoint is the endpoint for downloading a file from Telegram
+	FileEndpoint = "https://api.telegram.org/file/bot%s/%s"
+)
+
+// Constant values for ChatActions
+const (
+	ChatTyping         = "typing"
+	ChatUploadPhoto    = "upload_photo"
+	ChatRecordVideo    = "record_video"
+	ChatUploadVideo    = "upload_video"
+	ChatRecordAudio    = "record_audio"
+	ChatUploadAudio    = "upload_audio"
+	ChatUploadDocument = "upload_document"
+	ChatFindLocation   = "find_location"
+)
+
+// API errors
+const (
+	// APIForbidden happens when a token is bad
+	APIForbidden = "forbidden"
+)
+
+// Constant values for ParseMode in MessageConfig
+const (
+	ModeMarkdown = "Markdown"
+)
+
+// Base struct for all chat event(Message, Photo and so on)
+type Chattable struct {
+	ChatID          int
+	ChannelUsername string
+}
+
+// MessageConfig contains information about a SendMessage request.
+type MessageConfig struct {
+	Chattable
+	Text                  string
+	ParseMode             string
+	DisableWebPagePreview bool
+	ReplyToMessageID      int
+	ReplyMarkup           interface{}
+}
+
+// ForwardConfig contains information about a ForwardMessage request.
+type ForwardConfig struct {
+	Chattable
+	FromChatID          int
+	FromChannelUsername string
+	MessageID           int
+}
+
+// PhotoConfig contains information about a SendPhoto request.
+type PhotoConfig struct {
+	Chattable
+	Caption          string
+	ReplyToMessageID int
+	ReplyMarkup      interface{}
+	UseExistingPhoto bool
+	FilePath         string
+	File             interface{}
+	FileID           string
+}
+
+// AudioConfig contains information about a SendAudio request.
+type AudioConfig struct {
+	Chattable
+	Duration         int
+	Performer        string
+	Title            string
+	ReplyToMessageID int
+	ReplyMarkup      interface{}
+	UseExistingAudio bool
+	FilePath         string
+	File             interface{}
+	FileID           string
+}
+
+// DocumentConfig contains information about a SendDocument request.
+type DocumentConfig struct {
+	Chattable
+	ReplyToMessageID    int
+	ReplyMarkup         interface{}
+	UseExistingDocument bool
+	FilePath            string
+	File                interface{}
+	FileID              string
+}
+
+// StickerConfig contains information about a SendSticker request.
+type StickerConfig struct {
+	Chattable
+	ReplyToMessageID   int
+	ReplyMarkup        interface{}
+	UseExistingSticker bool
+	FilePath           string
+	File               interface{}
+	FileID             string
+}
+
+// VideoConfig contains information about a SendVideo request.
+type VideoConfig struct {
+	Chattable
+	Duration         int
+	Caption          string
+	ReplyToMessageID int
+	ReplyMarkup      interface{}
+	UseExistingVideo bool
+	FilePath         string
+	File             interface{}
+	FileID           string
+}
+
+// VoiceConfig contains information about a SendVoice request.
+type VoiceConfig struct {
+	Chattable
+	Duration         int
+	ReplyToMessageID int
+	ReplyMarkup      interface{}
+	UseExistingVoice bool
+	FilePath         string
+	File             interface{}
+	FileID           string
+}
+
+// LocationConfig contains information about a SendLocation request.
+type LocationConfig struct {
+	Chattable
+	Latitude         float64
+	Longitude        float64
+	ReplyToMessageID int
+	ReplyMarkup      interface{}
+}
+
+// ChatActionConfig contains information about a SendChatAction request.
+type ChatActionConfig struct {
+	Chattable
+	Action string
+}
+
+// UserProfilePhotosConfig contains information about a GetUserProfilePhotos request.
+type UserProfilePhotosConfig struct {
+	UserID int
+	Offset int
+	Limit  int
+}
+
+// FileConfig has information about a file hosted on Telegram
+type FileConfig struct {
+	FileID string
+}
+
+// UpdateConfig contains information about a GetUpdates request.
+type UpdateConfig struct {
+	Offset  int
+	Limit   int
+	Timeout int
+}
+
+// WebhookConfig contains information about a SetWebhook request.
+type WebhookConfig struct {
+	Clear       bool
+	URL         *url.URL
+	Certificate interface{}
+}
+
+// FileBytes contains information about a set of bytes to upload as a File.
+type FileBytes struct {
+	Name  string
+	Bytes []byte
+}
+
+// FileReader contains information about a reader to upload as a File.
+// If Size is -1, it will read the entire Reader into memory to calculate a Size.
+type FileReader struct {
+	Name   string
+	Reader io.Reader
+	Size   int64
+}

helpers.go

@@ -10,7 +10,7 @@ import (
 // chatID is where to send it, text is the message text.
 func NewMessage(chatID int, text string) MessageConfig {
 	return MessageConfig{
-		ChatID: chatID,
+		Chattable: Chattable{ChatID: chatID},
 		Text:      text,
 		DisableWebPagePreview: false,
 		ReplyToMessageID:      0,
@@ -23,7 +23,7 @@ func NewMessage(chatID int, text string) MessageConfig {
 // and messageID is the ID of the original message.
 func NewForward(chatID int, fromChatID int, messageID int) ForwardConfig {
 	return ForwardConfig{
-		ChatID:     chatID,
+		Chattable:  Chattable{ChatID: chatID},
 		FromChatID: fromChatID,
 		MessageID:  messageID,
 	}
@@ -36,7 +36,7 @@ func NewForward(chatID int, fromChatID int, messageID int) ForwardConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewPhotoUpload(chatID int, file interface{}) PhotoConfig {
 	return PhotoConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingPhoto: false,
 		File:             file,
 	}
@@ -48,7 +48,7 @@ func NewPhotoUpload(chatID int, file interface{}) PhotoConfig {
 // chatID is where to send it, fileID is the ID of the file already uploaded.
 func NewPhotoShare(chatID int, fileID string) PhotoConfig {
 	return PhotoConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingPhoto: true,
 		FileID:           fileID,
 	}
@@ -61,7 +61,7 @@ func NewPhotoShare(chatID int, fileID string) PhotoConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewAudioUpload(chatID int, file interface{}) AudioConfig {
 	return AudioConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingAudio: false,
 		File:             file,
 	}
@@ -73,7 +73,7 @@ func NewAudioUpload(chatID int, file interface{}) AudioConfig {
 // chatID is where to send it, fileID is the ID of the audio already uploaded.
 func NewAudioShare(chatID int, fileID string) AudioConfig {
 	return AudioConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingAudio: true,
 		FileID:           fileID,
 	}
@@ -86,7 +86,7 @@ func NewAudioShare(chatID int, fileID string) AudioConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewDocumentUpload(chatID int, file interface{}) DocumentConfig {
 	return DocumentConfig{
-		ChatID:              chatID,
+		Chattable:           Chattable{ChatID: chatID},
 		UseExistingDocument: false,
 		File:                file,
 	}
@@ -98,7 +98,7 @@ func NewDocumentUpload(chatID int, file interface{}) DocumentConfig {
 // chatID is where to send it, fileID is the ID of the document already uploaded.
 func NewDocumentShare(chatID int, fileID string) DocumentConfig {
 	return DocumentConfig{
-		ChatID:              chatID,
+		Chattable:           Chattable{ChatID: chatID},
 		UseExistingDocument: true,
 		FileID:              fileID,
 	}
@@ -110,7 +110,7 @@ func NewDocumentShare(chatID int, fileID string) DocumentConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewStickerUpload(chatID int, file interface{}) StickerConfig {
 	return StickerConfig{
-		ChatID:             chatID,
+		Chattable:          Chattable{ChatID: chatID},
 		UseExistingSticker: false,
 		File:               file,
 	}
@@ -122,7 +122,7 @@ func NewStickerUpload(chatID int, file interface{}) StickerConfig {
 // chatID is where to send it, fileID is the ID of the sticker already uploaded.
 func NewStickerShare(chatID int, fileID string) StickerConfig {
 	return StickerConfig{
-		ChatID:             chatID,
+		Chattable:          Chattable{ChatID: chatID},
 		UseExistingSticker: true,
 		FileID:             fileID,
 	}
@@ -135,7 +135,7 @@ func NewStickerShare(chatID int, fileID string) StickerConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewVideoUpload(chatID int, file interface{}) VideoConfig {
 	return VideoConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingVideo: false,
 		File:             file,
 	}
@@ -147,7 +147,7 @@ func NewVideoUpload(chatID int, file interface{}) VideoConfig {
 // chatID is where to send it, fileID is the ID of the video already uploaded.
 func NewVideoShare(chatID int, fileID string) VideoConfig {
 	return VideoConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingVideo: true,
 		FileID:           fileID,
 	}
@@ -160,7 +160,7 @@ func NewVideoShare(chatID int, fileID string) VideoConfig {
 // chatID is where to send it, file is a string path to the file, or FileReader or FileBytes.
 func NewVoiceUpload(chatID int, file interface{}) VoiceConfig {
 	return VoiceConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingVoice: false,
 		File:             file,
 	}
@@ -172,7 +172,7 @@ func NewVoiceUpload(chatID int, file interface{}) VoiceConfig {
 // chatID is where to send it, fileID is the ID of the video already uploaded.
 func NewVoiceShare(chatID int, fileID string) VoiceConfig {
 	return VoiceConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		UseExistingVoice: true,
 		FileID:           fileID,
 	}
@@ -184,7 +184,7 @@ func NewVoiceShare(chatID int, fileID string) VoiceConfig {
 // chatID is where to send it, latitude and longitude are coordinates.
 func NewLocation(chatID int, latitude float64, longitude float64) LocationConfig {
 	return LocationConfig{
-		ChatID:           chatID,
+		Chattable:        Chattable{ChatID: chatID},
 		Latitude:         latitude,
 		Longitude:        longitude,
 		ReplyToMessageID: 0,
@@ -198,7 +198,7 @@ func NewLocation(chatID int, latitude float64, longitude float64) LocationConfig
 // chatID is where to send it, action should be set via CHAT constants.
 func NewChatAction(chatID int, action string) ChatActionConfig {
 	return ChatActionConfig{
-		ChatID: chatID,
+		Chattable: Chattable{ChatID: chatID},
 		Action:    action,
 	}
 }

updates.go

@@ -1,33 +0,0 @@
-package tgbotapi
-
-import (
-	"log"
-	"time"
-)
-
-// UpdatesChan starts a channel for getting updates.
-func (bot *BotAPI) UpdatesChan(config UpdateConfig) error {
-	bot.Updates = make(chan Update, 100)
-
-	go func() {
-		for {
-			updates, err := bot.GetUpdates(config)
-			if err != nil {
-				log.Println(err)
-				log.Println("Failed to get updates, retrying in 3 seconds...")
-				time.Sleep(time.Second * 3)
-
-				continue
-			}
-
-			for _, update := range updates {
-				if update.UpdateID >= config.Offset {
-					config.Offset = update.UpdateID + 1
-					bot.Updates <- update
-				}
-			}
-		}
-	}()
-
-	return nil
-}

webhook.go

@@ -1,21 +0,0 @@
-package tgbotapi
-
-import (
-	"encoding/json"
-	"io/ioutil"
-	"net/http"
-)
-
-// ListenForWebhook registers a http handler for a webhook.
-func (bot *BotAPI) ListenForWebhook(pattern string) {
-	bot.Updates = make(chan Update, 100)
-
-	http.HandleFunc(pattern, func(w http.ResponseWriter, r *http.Request) {
-		bytes, _ := ioutil.ReadAll(r.Body)
-
-		var update Update
-		json.Unmarshal(bytes, &update)
-
-		bot.Updates <- update
-	})
-}