package ru.charm.back.controller;

import jakarta.servlet.ServletException;
import jakarta.servlet.annotation.MultipartConfig;
import jakarta.servlet.annotation.WebServlet;
import jakarta.servlet.http.HttpServlet;
import jakarta.servlet.http.HttpServletRequest;
import jakarta.servlet.http.HttpServletResponse;
import lombok.extern.slf4j.Slf4j;
import ru.charm.back.dto.ProfileGetDto;
import ru.charm.back.dto.ProfileUpdateDto;
import ru.charm.back.mapper.RequestToProfileUpdateDtoMapper;
import ru.charm.back.model.exception.DuplicateEmailException;
import ru.charm.back.service.ProfileService;

import java.io.IOException;
import java.util.Optional;

import static jakarta.servlet.http.HttpServletResponse.SC_BAD_REQUEST;

@WebServlet("/credentials")
@Slf4j
@MultipartConfig
public class CredentialsController extends HttpServlet {
    private final ProfileService service = ProfileService.getInstance();
    private final RequestToProfileUpdateDtoMapper requestToProfileUpdateDtoMapper = RequestToProfileUpdateDtoMapper.getInstance();

    @Override
    protected void doGet (HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {

        String sId = req.getParameter("id");
        String forwardUri = "/notFound";
        if (sId != null) {
            Optional<ProfileGetDto> optProfileGetDto = service.findById(Long.parseLong(sId));
            if (optProfileGetDto.isPresent()) {
                req.setAttribute("profile", optProfileGetDto.get());
                forwardUri = "/WEB-INF/jsp/email.jsp";
            }
        }
        req.getRequestDispatcher(forwardUri).forward(req, resp);
    }

    @Override
    protected void doPut (HttpServletRequest req, HttpServletResponse resp) throws ServletException, IOException {
        ProfileUpdateDto dto = requestToProfileUpdateDtoMapper.map(req, new ProfileUpdateDto());
        try {
            service.update(dto);
            log.info("Email {} was changed in profile with id = {}", dto.getEmail(), dto.getId());
            resp.sendRedirect(String.format("/profile?id=%s", dto.getId()));
        } catch (DuplicateEmailException e) {
            resp.sendError(SC_BAD_REQUEST);
        }
    }
}