✨ Implement help command

cli/commands/help.go

@@ -0,0 +1,59 @@
+package commands
+
+import (
+	"fmt"
+	"git.dragon-labs.de/alphyron/group_helper/cli"
+	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api"
+	"strings"
+)
+
+type helpCommand struct {
+	commandManager *cli.CommandManager
+}
+
+func NewHelpCommand(commandManager *cli.CommandManager) cli.Command {
+	return &helpCommand{commandManager: commandManager}
+}
+
+func (h helpCommand) GetUsage() string {
+	return "/help"
+}
+
+func (h helpCommand) GetCommand() string {
+	return "/help"
+}
+
+func (h helpCommand) GetDescription() string {
+	return "Information about all commands"
+}
+
+func (h helpCommand) ExecuteCommand(bot *tgbotapi.BotAPI, update *tgbotapi.Update) (bool, error) {
+	var builder strings.Builder
+
+	builder.WriteString("All supported Commands:\n")
+	for _, cmd := range h.commandManager.Commands {
+		builder.WriteString(fmt.Sprintf("%s - %s\n", cmd.GetUsage(), cmd.GetDescription()))
+	}
+
+	msg := tgbotapi.NewMessage(update.Message.Chat.ID, builder.String())
+	msg.ParseMode = "Markdown"
+
+	_, err := bot.Send(msg)
+
+	if err != nil {
+		return false, err
+	}
+	return true, nil
+}
+
+func (h helpCommand) AllowChatType(chat *tgbotapi.Chat) bool {
+	return true
+}
+
+func (h helpCommand) AllowMember(member *tgbotapi.ChatMember) bool {
+	return true
+}
+
+func (h helpCommand) AllowEveryMember() bool {
+	return true
+}

main.go

@@ -69,6 +69,7 @@ func InitialCommandManager(bot *tgbotapi.BotAPI) *cli.CommandManager {
 	}
 
 	cm.RegisterCommand(commands.NewInfoCommand())
+	cm.RegisterCommand(commands.NewHelpCommand(cm))
 
 	return cm
 }