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server.go
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server.go
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package main
import (
"encoding/json"
"gopkg.in/telegram-bot-api.v3"
"log"
"net/http"
"strconv"
)
var userSessions map[string]UserSession
type Message struct {
Message string
}
func main() {
bot, err := createBot()
if err != nil {
log.Panic(err)
}
http.HandleFunc("/subscription/add", func(w http.ResponseWriter, r *http.Request) {
var msg Message
if r.Body == nil {
http.Error(w, "Please send a request body", 400)
return
}
err := json.NewDecoder(r.Body).Decode(&msg)
if err != nil {
http.Error(w, err.Error(), 400)
return
}
sendVacationToAll(bot, msg.Message)
w.Header().Set("Content-Type", "application/json; charset=UTF-8")
w.WriteHeader(http.StatusOK)
})
go initApp(bot)
log.Fatal(http.ListenAndServe(":8080", nil))
}
func initApp(bot *tgbotapi.BotAPI) {
userSessions = getUserSessions()
u := tgbotapi.NewUpdate(0)
u.Timeout = 60
updates, _ := bot.GetUpdatesChan(u)
for update := range updates {
log.Printf("[%s] %s", update.Message.From.UserName, update.Message.Text)
processUpdate(bot, update)
}
}
func processUpdate(bot *tgbotapi.BotAPI, update tgbotapi.Update) {
msg := tgbotapi.NewMessage(update.Message.Chat.ID, update.Message.Text)
// switch {
// case msg.Text == "/start":
_, isExists := userSessions[strconv.FormatInt(update.Message.Chat.ID, 10)]
if !isExists {
sendGreetingMessage(bot, msg)
addSession(update)
}
// }
}
func createBot() (*tgbotapi.BotAPI, error) {
bot, err := tgbotapi.NewBotAPI("258957984:AAGmMmfsA8eYeHx8OB_mvyFqHZPGoOxOvds")
if err != nil {
return nil, err
}
bot.Debug = true
log.Printf("Authorized on account %s", bot.Self.UserName)
return bot, nil
}
// TODO: create special struct for it #1
func sendGreetingMessage(bot *tgbotapi.BotAPI, msg tgbotapi.MessageConfig) (bool, error) {
msg.Text = "Привет. Я твой персональный помощник по поиску вакансий! Теперь я буду отправлять вам вакансии"
_, err := bot.Send(msg)
if err != nil {
return false, err
}
return true, nil
}
func sendVacationToAll(bot *tgbotapi.BotAPI, message string) {
log.Printf("Send message to all - %s", message)
for chatId, session := range userSessions {
log.Printf("Send message to - %s", chatId)
msg := tgbotapi.MessageConfig{
Text: message,
BaseChat: tgbotapi.BaseChat{
ChatID: session.ChatId,
},
ParseMode: "HTML",
}
_, err := bot.Send(msg)
if err != nil {
return
}
}
}