package validators

import (
	"fmt"
	"github.com/go-playground/validator/v10"
	"golang-test/database"
	"golang-test/libs"
	"log"
)

var Validate *validator.Validate

func init() {
	Validate = validator.New()
	err := Validate.RegisterValidation("custom_unique", UniqueValidator)
	if err != nil {
		return
	}
}

func UniqueValidator(fl validator.FieldLevel) bool {
	db := database.Connector()

	field := fl.Field().String()
	structType := libs.ToSnakeCase(fl.Top().Type().Name()) + "s"
	param := fl.Param()
	log.Println(field, structType, param)

	var count int64
	db.Table(structType).Where(fmt.Sprintf("%s = ?", param), field).Count(&count)

	return count == 0
}