package utils

// import "regexp"

import (
	// "reflect"
	"time"

	"GoMembership/internal/database"
	"GoMembership/internal/models"
	"GoMembership/pkg/logger"
	"github.com/go-playground/validator/v10"
	"github.com/jbub/banking/iban"
	"github.com/jbub/banking/swift"
	"slices"
)

//
// func IsEmailValid(email string) bool {
// 	regex := `^[a-z0-9._%+\-]+@[a-z0-9.\-]+\.[a-z]{2,}$`
// 	re := regexp.MustCompile(regex)
// 	return re.MatchString(email)
// }

func AgeValidator(fl validator.FieldLevel) bool {
	fieldValue := fl.Field()
	// Ensure the field is of type time.Time
	// if fieldValue.Kind() != reflect.Struct || !fieldValue.Type().ConvertibleTo(reflect.TypeOf(time.Time{})) {
	// 	return false
	// }
	dateOfBirth := fieldValue.Interface().(time.Time)
	now := time.Now()
	age := now.Year() - dateOfBirth.Year()

	if now.YearDay() < dateOfBirth.YearDay() {
		age-- // if birthday is in the future..
	}

	return age >= 18
}

func SubscriptionModelValidator(fl validator.FieldLevel) bool {
	fieldValue := fl.Field().String()
	var names []string
	if err := database.DB.Model(&models.SubscriptionModel{}).Pluck("name", &names).Error; err != nil {
		logger.Error.Fatalf("Couldn't get SubscriptionModel names: %#v", err)
		return false
	}
	return slices.Contains(names, fieldValue)
}

func IBANValidator(fl validator.FieldLevel) bool {
	fieldValue := fl.Field().String()

	return iban.Validate(fieldValue) == nil
}

func BICValidator(fl validator.FieldLevel) bool {
	fieldValue := fl.Field().String()

	return swift.Validate(fieldValue) == nil
}