package controllers

import (
	"reflect"

	"github.com/go-playground/validator/v10"
	"github.com/gofiber/fiber/v2"
	"penahub.gitlab.yandexcloud.net/backend/verification/internal/models"
)

var validate = validator.New()

type Route struct {
	Method  string
	Path    string
	Name    string
	Handler fiber.Handler
}

// validateStruct - возвращает строку с ошибкой, если структура не прошла валидацию.
func validateStruct(s any) []*models.RespErrorValidate {
	err := validate.Struct(s)

	var errorsValidate []*models.RespErrorValidate
	if err != nil {
		for _, err := range err.(validator.ValidationErrors) {
			field := err.Field()

			r, _ := reflect.TypeOf(s).Elem().FieldByName(err.Field())
			if queryTag := r.Tag.Get("query"); queryTag != "" {
				field = queryTag
			}
			if jsonTag := r.Tag.Get("json"); jsonTag != "" {
				field = jsonTag
			}

			errorsValidate = append(errorsValidate, &models.RespErrorValidate{
				Field: field,
				Tag:   err.Tag(),
				Value: err.Param(),
			})
		}
	}

	return errorsValidate
}