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telegram.go
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telegram.go
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package events
import (
"fmt"
"github.com/Romancha/server-healthcheck-telegram-bot/app/checks"
tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
"log"
"strings"
)
type Server struct {
Url string
Name string
}
func ListenTelegramUpdates(bot *tgbotapi.BotAPI, superUsers SuperUser) {
u := tgbotapi.NewUpdate(0)
u.Timeout = 60
updates := bot.GetUpdatesChan(u)
for update := range updates {
// check if is not superuser, ignore
if !superUsers.IsSuper(update.Message.From.UserName) {
continue
}
if update.Message.IsCommand() {
switch update.Message.Command() {
case "add":
var server = getServer(update.Message)
var checksData = checks.ReadChecksData()
if _, ok := checksData.HealthChecks[server.Name]; ok {
msg := tgbotapi.NewMessage(update.Message.Chat.ID, "Server already exists")
bot.Send(msg)
continue
} else {
if checksData.HealthChecks == nil {
checksData.HealthChecks = make(map[string]checks.ServerCheck)
}
checksData.HealthChecks[server.Name] = checks.ServerCheck{
Name: server.Name,
Url: server.Url,
IsOk: false,
}
}
saveError := checks.SaveChecksData(checksData)
if saveError != nil {
log.Printf("[ERROR] Failed to save checks data: %v", saveError)
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID,
fmt.Sprintf("Failed to add server %s [%s]", server.Name, server.Url)),
)
continue
}
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID, fmt.Sprintf(
"Server %s [%s] added", server.Name, server.Url)),
)
case "remove":
var server = getServer(update.Message)
var checksData = checks.ReadChecksData()
if _, ok := checksData.HealthChecks[server.Name]; ok {
delete(checksData.HealthChecks, server.Name)
msg := tgbotapi.NewMessage(update.Message.Chat.ID, fmt.Sprintf(
"Server %s removed", server.Name),
)
bot.Send(msg)
} else {
msg := tgbotapi.NewMessage(
update.Message.Chat.ID, fmt.Sprintf("Server %s not exists", server.Name),
)
bot.Send(msg)
continue
}
saveError := checks.SaveChecksData(checksData)
if saveError != nil {
log.Printf("[ERROR] Failed to save checks data: %v", saveError)
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID,
fmt.Sprintf("Failed to remove server %s", server)),
)
continue
}
case "removeAll":
var emptyData = checks.Data{
HealthChecks: make(map[string]checks.ServerCheck),
}
saveError := checks.SaveChecksData(emptyData)
if saveError != nil {
log.Printf("[ERROR] Failed to save checks data: %v", saveError)
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID,
fmt.Sprintf("Failed to remove all servers")),
)
continue
}
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID, "All servers removed"))
case "list":
var checksData = checks.ReadChecksData()
var serverList string
for _, serverCheck := range checksData.HealthChecks {
var serverStatus string
if serverCheck.IsOk {
serverStatus = "✅"
} else {
serverStatus = "❌"
}
serverList += fmt.Sprintf("%s %s [%s]\n", serverStatus, serverCheck.Name, serverCheck.Url)
}
if serverList == "" {
serverList = "No servers"
}
bot.Send(tgbotapi.NewMessage(update.Message.Chat.ID, serverList))
}
}
}
}
func getServer(message *tgbotapi.Message) Server {
var userArg = strings.Split(message.CommandArguments(), " ")
var originalUrl = userArg[0]
var fullUrl = getFullServerUrl(userArg[0])
var serverName string
if len(userArg) > 1 {
serverName = userArg[1]
}
if serverName == "" {
serverName = originalUrl
}
return Server{
Url: fullUrl,
Name: serverName,
}
}
func getFullServerUrl(serverUrl string) string {
if (strings.HasPrefix(serverUrl, "https://") ||
strings.HasPrefix(serverUrl, "http://")) == false {
serverUrl = "https://" + serverUrl
}
return serverUrl
}