package routines

import (
	"git.dragon-labs.de/alphyron/group_helper/models"
	"git.dragon-labs.de/alphyron/group_helper/obj"
	"git.dragon-labs.de/alphyron/group_helper/telegram"
	"git.dragon-labs.de/alphyron/group_helper/util"
	tgbotapi "github.com/go-telegram-bot-api/telegram-bot-api"
	"log"
	"math/rand"
	"strconv"
	"time"
)

type joinCheckerRoutine struct {
	verifyData *obj.VerifyData
}

func NewJoinCheckerRoutine(verifyData *obj.VerifyData) telegram.Routine {
	return joinCheckerRoutine{
		verifyData: verifyData,
	}
}

func (j joinCheckerRoutine) Update(botAPI *tgbotapi.BotAPI, update *tgbotapi.Update, group *models.Group) error {

	if update.Message == nil { // ignore any non-Message Updates
		return nil
	}

	if update.Message.Chat.IsPrivate() || update.Message.Chat.IsChannel() {
		return nil
	}

	if update.Message.NewChatMembers != nil {
		for _, newUser := range *update.Message.NewChatMembers {
			length := 3

			tasks := make([][]tgbotapi.InlineKeyboardButton, length)

			for i := 0; i < length; i++ {
				tasks[i] = tgbotapi.NewInlineKeyboardRow(tgbotapi.NewInlineKeyboardButtonData(util.GenerateCalculation(i == 0), "UserValidation: "+strconv.FormatBool(i == 0)))
			}

			rand.Seed(time.Now().UnixNano())
			rand.Shuffle(len(tasks), func(i, j int) { tasks[i], tasks[j] = tasks[j], tasks[i] })

			markup := tgbotapi.NewInlineKeyboardMarkup(tasks...)

			msg := tgbotapi.NewMessage(update.Message.Chat.ID, group.UserJoinMessage)
			//TODO Replace placeholder
			msg.ParseMode = "Markdown"
			msg.ReplyMarkup = markup

			message, err := botAPI.Send(msg)

			if err != nil {
				log.Println("Problem to send verified Messages to user")
				log.Println(newUser.FirstName)
				log.Println(err)
			}

			j.verifyData.AddUser(&obj.VerifyUser{
				UserID:    newUser.ID,
				GroupID:   group.GroupID,
				LeftTime:  group.KickCooldown,
				MessageID: message.MessageID,
			})
		}
	}
	return nil
}