package scylladb

import (
	"time"

	gocnjhelper "git.clickandjoin.umbach.dev/ClickandJoin/go-cnj-helper"
	"git.clickandjoin.umbach.dev/ClickandJoin/go-cnj-helper/dbstructs"
	"github.com/gocql/gocql"
)

func TableCleaner() {
	currentTime := time.Now()
	desiredTime := time.Date(currentTime.Year(), currentTime.Month(), currentTime.Day()+1, 3, 0, 0, 0, currentTime.Location())
	duration := desiredTime.Sub(currentTime)

	time.Sleep(duration)

	var userSignUpProcesses []dbstructs.UserSignUpProcess

	if err := Session.Query(gocnjhelper.DbMUserSignUpProcess.SelectAll()).SelectRelease(&userSignUpProcesses); err != nil {
		gocnjhelper.LogErrorf("Failed to select user sign up processes, err: %s", err.Error())
		return
	}

	var expiredUserSignUpProcesses []dbstructs.UserSignUpProcess

	currentTimeUnix := time.Now().Unix()

	for _, us := range userSignUpProcesses {
		if us.ExpiresAt < currentTimeUnix {
			expiredUserSignUpProcesses = append(expiredUserSignUpProcesses, us)
		}
	}

	if len(expiredUserSignUpProcesses) > 0 {
		batch := Session.NewBatch(gocql.UnloggedBatch)

		q := "DELETE FROM clicknjoin.user_sign_up_process WHERE x_token = ?"

		for _, us := range expiredUserSignUpProcesses {
			batch.Query(q, us.XToken)
		}

		if err := Session.ExecuteBatch(batch); err != nil {
			gocnjhelper.LogErrorf("Failed to execute batch, err:", err.Error())
			return
		}
	}

	// restart timer
	go TableCleaner()
}