From ba3e7a59c1304c78d5bbf026b4ff851fdf4d2750 Mon Sep 17 00:00:00 2001
From: ptrcnull <git@ptrcnull.me>
Date: Fri, 2 Oct 2020 14:53:42 +0200
Subject: [PATCH] feat: Initial commit

---
 client.go | 68 +++++++++++++++++++++++++++++++++++++++++++++++++
 go.mod    |  3 +++
 types.go  | 76 +++++++++++++++++++++++++++++++++++++++++++++++++++++++
 3 files changed, 147 insertions(+)
 create mode 100644 client.go
 create mode 100644 go.mod
 create mode 100644 types.go

diff --git a/client.go b/client.go
new file mode 100644
index 0000000..c8258b2
--- /dev/null
+++ b/client.go
@@ -0,0 +1,68 @@
+package telegram
+
+import (
+	"encoding/json"
+	"io/ioutil"
+	"log"
+	"net/http"
+	"net/url"
+	"strconv"
+)
+
+type Client struct {
+	Key    string
+	Offset int64
+}
+
+func (c *Client) GetUpdates() (Response, error) {
+	var res Response
+
+	resp, err := http.Get("https://api.telegram.org/" + c.Key + "/getUpdates?offset=" + strconv.FormatInt(c.Offset, 10))
+	if err != nil {
+		return res, err
+	}
+
+	body, err := ioutil.ReadAll(resp.Body)
+	if err != nil {
+		return res, err
+	}
+
+	err = json.Unmarshal(body, &res)
+
+	if len(res.Result) > 0 {
+		log.Println("Last update: ", res.Result[len(res.Result)-1].UpdateID)
+		c.Offset = res.Result[len(res.Result)-1].UpdateID + 1
+	}
+
+	return res, err
+}
+
+func (c *Client) SendMessage(chatId, body string, options ...url.Values) (ret *SendMessageResponse, err error) {
+	values := url.Values{
+		"chat_id": {chatId},
+		"text":    {body},
+	}
+	for _, vals := range options {
+		for key, val := range vals {
+			values[key] = val
+		}
+	}
+
+	response, err := http.PostForm("https://api.telegram.org/"+c.Key+"/sendMessage", values)
+	if err != nil {
+		return nil, err
+	}
+
+	defer func() {
+		err = response.Body.Close()
+	}()
+
+	resbody, err := ioutil.ReadAll(response.Body)
+	if err != nil {
+		return nil, err
+	}
+
+	var res SendMessageResponse
+	err = json.Unmarshal(resbody, &res)
+	return &res, err
+}
diff --git a/go.mod b/go.mod
new file mode 100644
index 0000000..6a42c77
--- /dev/null
+++ b/go.mod
@@ -0,0 +1,3 @@
+module git.ddd.codes/ptrcnull/telegram
+
+go 1.15
diff --git a/types.go b/types.go
new file mode 100644
index 0000000..a4ec679
--- /dev/null
+++ b/types.go
@@ -0,0 +1,76 @@
+package telegram
+
+type Response struct {
+	Ok     bool     `json:"ok"`
+	Result []Update `json:"result"`
+}
+
+type Author struct {
+	ID        int64  `json:"id"`
+	IsBot     bool   `json:"is_bot"`
+	FirstName string `json:"first_name"`
+	LastName  string `json:"last_name"`
+	Username  string `json:"username"`
+}
+
+type Update struct {
+	UpdateID      int64    `json:"update_id"`
+	Message       *Message `json:"message"`
+	EditedMessage *Message `json:"edited_message"`
+}
+
+type Chat struct {
+	ID    int64  `json:"id"`
+	Title string `json:"title"`
+	Type  string `json:"type"`
+}
+
+type Sticker struct {
+	Width        int    `json:"width"`
+	Height       int    `json:"height"`
+	SetName      string `json:"set_name"`
+	IsAnimated   bool   `json:"is_animated"`
+	FileId       string `json:"file_id"`
+	FileUniqueId string `json:"file_unique_id"`
+	FileSize     int64  `json:"file_size"`
+}
+
+type File struct {
+	FileID       string `json:"file_id"`
+	FileUniqueId string `json:"file_unique_id"`
+	FileSize     int64  `json:"file_size"`
+	Width        int    `json:"width"`
+	Height       int    `json:"height"`
+}
+
+type PollOption struct {
+	Text       string `json:"text"`
+	VoterCount int    `json:"voter_count"`
+}
+
+type Poll struct {
+	ID       string       `json:"id"`
+	Question string       `json:"question"`
+	Options  []PollOption `json:"options"`
+	IsClosed bool         `json:"is_closed"`
+}
+
+type Message struct {
+	MessageID           int64    `json:"message_id"`
+	From                Author   `json:"from"`
+	Text                string   `json:"text"`
+	Caption             *string  `json:"caption"`
+	Chat                *Chat    `json:"chat"`
+	Sticker             *Sticker `json:"sticker"`
+	Photo               []File   `json:"photo"`
+	Document            *File    `json:"document"`
+	NewChatTitle        *string  `json:"new_chat_title"`
+	LeftChatParticipant *Author  `json:"left_chat_participant"`
+	NewChatParticipant  *Author  `json:"new_chat_participant"`
+	ReplyToMessage      *Message `json:"reply_to_message"`
+}
+
+type SendMessageResponse struct {
+	Ok     bool `json:"ok"`
+	Result Message `json:"result"`
+}