helps fixed (#5)

* helps fixed

* fixed help command

Author: Gasoid

bot/bot.go

@@ -12,6 +12,22 @@ const (
 	UnknownUpdateType UpdateType = "unknown"
 )
 
+type Help struct {
+	commandList []string
+}
+
+func (h *Help) Add(cmd, text string) {
+	h.commandList = append(h.commandList, fmt.Sprintf("- /%s: %s", cmd, text))
+}
+
+func (h *Help) List() []string {
+	return h.commandList
+}
+
+func NewHelp() *Help {
+	return &Help{commandList: []string{}}
+}
+
 type UpdateType string
 
 type MetricsExporter interface {
@@ -61,14 +77,14 @@ type Bot struct {
 	commands     map[string]func(c *BotContext)
 	messenger    Messenger
 	newMembersID map[int64]int
-	helps        []string
+	help         *Help
 }
 
-func New(messenger Messenger, helps []string, newMembersID map[int64]int) *Bot {
+func New(messenger Messenger, help *Help, newMembersID map[int64]int) *Bot {
 	bot := &Bot{
 		messenger:    messenger,
 		commands:     make(map[string]func(c *BotContext)),
-		helps:        helps,
+		help:         help,
 		newMembersID: newMembersID,
 		checkers:     []func(c *BotContext){},
 	}
@@ -114,7 +130,7 @@ func (b *Bot) BanUser(chatID int64, userID int64) {
 func (b *Bot) Command(cmd string, f func(c *BotContext), help string) {
 	b.commands[cmd] = f
 	if help != "" {
-		b.helps = append(b.helps, fmt.Sprintf("- /%s: %s", cmd, help))
+		b.help.Add(cmd, help)
 	}
 }
 

command_handlers.go

@@ -266,10 +266,10 @@ func changelog(gistUrl string) func(c *bot.BotContext) {
 	}
 }
 
-func help(helps []string) func(c *bot.BotContext) {
+func helpCmd(help *bot.Help) func(c *bot.BotContext) {
 	helpMessage := "⛑ *Справка по командам* \n%s \n📃 исходник: https://github.com/Gasoid/regular-go-bot"
 	return func(c *bot.BotContext) {
-		text := strings.Join(helps, "\n")
+		text := strings.Join(help.List(), "\n")
 		c.Text(helpMessage, text)
 	}
 }

main.go

@@ -16,16 +16,16 @@ const (
 )
 
 func main() {
-	helps := []string{}
+	help := bot.NewHelp()
 	newMembersID := map[int64]int{}
 	t, err := telegram.New(os.Getenv(token))
 	if err != nil {
 		log.Println("token is invalid", err.Error())
 		return
 	}
 	httpEndpoint()
-	bot := bot.New(t, helps, newMembersID)
-	bot.Command("help", help(helps), "помощь по командам")
+	bot := bot.New(t, help, newMembersID)
+	bot.Command("help", helpCmd(help), "помощь по командам")
 	bot.Command("estimation", estimation, "")
 	bot.Command("changelog", changelog(os.Getenv(gistNewsURL)), "")
 	bot.Command("currency", currency, "курс валют")