package ru.charm.back.controller.rest;

import com.fasterxml.jackson.databind.DeserializationFeature;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.databind.json.JsonMapper;
import com.fasterxml.jackson.datatype.jsr310.JavaTimeModule;
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 ru.charm.back.dto.ProfileGetDto;
import ru.charm.back.service.ProfileService;

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

import static jakarta.servlet.http.HttpServletResponse.SC_NOT_FOUND;
import static ru.charm.back.utils.UrlUtils.REST_URL;

@WebServlet(REST_URL + "/profile")
@MultipartConfig
public class ProfileController extends HttpServlet {
    private final ProfileService service = ProfileService.getInstance();

    private final ObjectMapper objectMapper = JsonMapper.builder()
            .configure(DeserializationFeature.ACCEPT_EMPTY_STRING_AS_NULL_OBJECT, true)
            .addModule(new JavaTimeModule())
            .build();

    @Override
    protected void doGet(HttpServletRequest req, HttpServletResponse resp) throws IOException {
        try (PrintWriter writer = resp.getWriter()) {
            resp.setContentType("application/json");
            resp.setCharacterEncoding("UTF-8");

            String sId = req.getParameter("id");
            if (sId != null) {
                Optional<ProfileGetDto> optProfileDto = service.findById(Long.parseLong(sId));
                if (optProfileDto.isPresent()) {
                    ProfileGetDto profileGetDto = optProfileDto.get();
                    objectMapper.writeValue(writer, profileGetDto);
                } else {
                    resp.sendError(SC_NOT_FOUND);
                }
            } else {
                objectMapper.writeValue(writer, service.findAll());
            }
        }
    }
}