package admin

import (
	"github.com/go-playground/validator/v10"
	"github.com/gofiber/fiber/v2"

	"git.dmitriygnatenko.ru/dima/dmitriygnatenko-v2/internal/helpers"
	"git.dmitriygnatenko.ru/dima/dmitriygnatenko-v2/internal/models"
	"git.dmitriygnatenko.ru/dima/dmitriygnatenko-v2/internal/services/auth"
)

// nolint
const errIncorrectOldPassword = "Неверный старый пароль"

func ChangePassword(
	authService AuthService,
	userRepository UserRepository,
) fiber.Handler {
	return func(fctx *fiber.Ctx) error {
		ctx := fctx.Context()
		var validate = validator.New()
		validateErrors := make(map[string]string)

		trans, err := helpers.GetDefaultTranslator(validate)
		if err != nil {
			return err
		}

		form := models.ChangePasswordForm{}

		if fctx.Method() == fiber.MethodPost {
			if err = fctx.BodyParser(&form); err != nil {
				return err
			}

			if err = validate.Struct(form); err != nil {
				validateErrors = helpers.FormatValidateErrors(err, trans)
			}

			if len(validateErrors) == 0 {
				claims := authService.GetClaims(fctx)

				user, err := userRepository.Get(ctx, claims[auth.ClaimNameKey].(string))
				if err != nil {
					return err
				}

				if authService.IsCorrectPassword(form.OldPassword, user.Password) {
					newPassword, err := authService.GeneratePasswordHash(form.NewPassword)
					if err != nil {
						return err
					}

					if err = userRepository.UpdatePassword(ctx, user.ID, newPassword); err != nil {
						return err
					}

					return fctx.Redirect("/admin")
				}

				validateErrors["ChangePasswordForm.OldPassword"] = errIncorrectOldPassword
			}
		}

		return fctx.Render("admin/user_change_password", fiber.Map{
			"form":    form,
			"errors":  validateErrors,
			"section": "change_password",
			"title":   "Изменение пароля",
		}, "admin/_layout")
	}
}