package main

import (
	"log"

	"git.zio.sh/astra/telegram-approval-join/config"
	"git.zio.sh/astra/telegram-approval-join/handlers"
	api "github.com/OvyFlash/telegram-bot-api"
)

func main() {
	b := &handlers.Bot{}
	b.Config = config.Config{}
	err := b.Config.LoadConfig()
	if err != nil {
		log.Fatal(err.Error())
	}

	if b.Config.BotToken == nil {
		log.Fatal("Edit config.yaml and fill out bot token")
	}
	bot, err := api.NewBotAPI(*b.Config.BotToken)
	if err != nil {
		panic(err)
	}

	b.API = bot
	b.WaitingForApproval = make(map[int64]*handlers.ExtendedChatJoinRequest)

	log.Printf("Authorized on account %s", bot.Self.UserName)

	updateConfig := api.NewUpdate(0)
	updateConfig.Timeout = 60
	updatesChannel := b.API.GetUpdatesChan(updateConfig)

	for update := range updatesChannel {
		if update.ChatJoinRequest != nil {
			if update.ChatJoinRequest.Chat.ID == *b.Config.TargetChatId {
				b.HandleJoinRequest(update.ChatJoinRequest)
			}
			continue
		}

		if update.CallbackQuery != nil {
			b.HandleCallbackQuery(update.CallbackQuery)
			continue
		}

		if update.Message == nil {
			continue
		}

		if user, ok := b.WaitingForApproval[update.Message.From.ID]; ok {
			if update.Message.Chat.ID == update.Message.From.ID {
				b.HandleJoinRequestResponse(user, update.Message)
			}
		}

		if update.Message.Chat.ID == *b.Config.AdminChatId {
			if update.Message.ReplyToMessage != nil {
				b.HandleDeclineReason(&update)
			}
			b.HandleAdminCommands(&update)
		}
	}
}