From 98004e726b4057a73e5a85f757b5e67053ff1831 Mon Sep 17 00:00:00 2001
From: Maxim Lebedev <git@toby3d.ru>
Date: Sat, 6 Jan 2018 16:59:23 +0500
Subject: [PATCH] :sparkles: Added SendPhoto method

---
 send_photo.go | 75 +++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 75 insertions(+)
 create mode 100644 send_photo.go

diff --git a/send_photo.go b/send_photo.go
new file mode 100644
index 0000000..c77e87a
--- /dev/null
+++ b/send_photo.go
@@ -0,0 +1,75 @@
+package telegram
+
+import (
+	"strconv"
+
+	json "github.com/pquerna/ffjson/ffjson"
+	http "github.com/valyala/fasthttp"
+)
+
+type SendPhotoParameters struct {
+	// Unique identifier for the target chat
+	ChatID int64 `json:"chat_id"`
+
+	// Photo to send. Pass a file_id as String to send a photo that exists on the Telegram servers
+	// (recommended), pass an HTTP URL as a String for Telegram to get a photo from the Internet, or
+	// upload a new photo using multipart/form-data.
+	Photo InputFile `json:"photo"`
+
+	// Photo caption (may also be used when resending photos by file_id), 0-200 characters
+	Caption string `json:"caption,omitempty"`
+
+	// Disables link previews for links in this message
+	DisableWebPagePreview bool `json:"disable_web_page_preview,omitempty"`
+
+	// Sends the message silently. Users will receive a notification with no sound.
+	DisableNotification bool `json:"disable_notification,omitempty"`
+
+	// If the message is a reply, ID of the original message
+	ReplyToMessageID int `json:"reply_to_message_id,omitempty"`
+
+	// Additional interface options. A JSON-serialized object for an inline keyboard, custom reply
+	// keyboard, instructions to remove reply keyboard or to force a reply from the user.
+	ReplyMarkup interface{} `json:"reply_markup,omitempty"`
+}
+
+func NewPhoto(chatID int64, photo interface{}) *SendPhotoParameters {
+	return &SendPhotoParameters{
+		ChatID: chatID,
+		Photo:  photo,
+	}
+}
+
+// SendPhoto send photos. On success, the sent Message is returned.
+func (bot *Bot) SendPhoto(params *SendPhotoParameters) (*Message, error) {
+	args := http.AcquireArgs()
+	defer http.ReleaseArgs(args)
+	args.Add("chat_id", strconv.FormatInt(params.ChatID, 10))
+
+	if params.Caption != "" {
+		args.Add("caption", params.Caption)
+	}
+
+	if params.ReplyMarkup != nil {
+		dst, err := json.Marshal(params.ReplyMarkup)
+		if err != nil {
+			return nil, err
+		}
+		args.Add("reply_markup", string(dst))
+	}
+
+	if params.ReplyToMessageID != 0 {
+		args.Add("reply_to_message_id", strconv.Itoa(params.ReplyToMessageID))
+	}
+
+	args.Add("disable_notification", strconv.FormatBool(params.DisableNotification))
+
+	resp, err := bot.upload(params.Photo, "photo", "", "sendPhoto", args)
+	if err != nil {
+		return nil, err
+	}
+
+	var data Message
+	err = json.Unmarshal(*resp.Result, &data)
+	return &data, err
+}