package main

import (
	"html/template"
	"log"

	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api/v5"
)

func getCurrentStatus(dataStore *DataStore, logger *log.Logger, config AppConfig, tpl *template.Template, s SatelNameGetter) string {
	elements := FilterBasicElementsByTypeOrIndex(dataStore.GetBasicEventElements(), config.AllowedTypes, config.AllowedIndexes)
	msg := GenericMessage{elements}
	return msg.Format(tpl, s, logger)
}

func HandleTelegramCommands(bot TelegramBot, logger *log.Logger, dataStore *DataStore, config AppConfig, tpl *template.Template, s SatelNameGetter) {
	u := tgbotapi.NewUpdate(0)
	u.Timeout = 60

	updates := bot.GetUpdatesChan(u)

	for update := range updates {
		if update.Message == nil { // ignore any non-Message updates
			continue
		}

		if !update.Message.IsCommand() { // ignore any non-command Messages
			continue
		}

		// Create a new MessageConfig. We don't have text yet,
		// so we leave it empty.
		msg := tgbotapi.NewMessage(update.Message.Chat.ID, "")

		// Extract the command from the Message.
		switch update.Message.Command() {
		case "status":
			msg.Text = getCurrentStatus(dataStore, logger, config, tpl, s)
		}

		if _, err := bot.Send(msg); err != nil {
			logger.Print(err)
		}
	}

	logger.Println("Stopping command handler")
}