package de.fd.fh.server.user.web;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import de.fd.fh.server.access.AccessToken;
import de.fd.fh.server.user.User;
import de.fd.fh.server.user.UserId;
import de.fd.fh.server.user.UserService;
import de.fd.fh.shared.network.messages.ChangeUserRequest;
import de.fd.fh.shared.network.messages.UserRequest;
import lombok.RequiredArgsConstructor;
import spark.Request;
import spark.Response;

@RequiredArgsConstructor
public class UserController
{
    private ObjectMapper objectMapper = new ObjectMapper();

    private final UserService service;

    public Response getUser(Request request, Response response) throws JsonProcessingException
    {
        final UserId userId = UserId.of(request.params(":user_id"));
        final UserRequest user = service.getSmallPlayer(userId);

        if (user == null)
        {
            response.status(404);
            return response;
        }
        response.body(objectMapper.writeValueAsString(user));
        return response;
    }

    public Response getCompleteUser(Request request, Response response) throws JsonProcessingException
    {
        final UserId userId =
                ((AccessToken) request.session()
                        .attribute("userId"))
                        .getUserId();

        final User user = service.getPlayer(userId);

        if (user == null)
        {
            response.status(404);
        }
        else
        {
            response.status(200);
            response.type("application/json");

            response.body(objectMapper.writeValueAsString(user));

            return response;
        }

        return response;
    }

    public Response updateUser(Request request, Response response) throws java.io.IOException
    {
        final UserId userId =
                ((AccessToken) request.session()
                        .attribute("userId"))
                        .getUserId();

        final ChangeUserRequest message = objectMapper.readValue(request.body(),
                ChangeUserRequest.class);

        final User user = service.changePlayer(
                userId,
                message);

        if (user == null)
        {
            response.status(400);
        }
        else
        {
            response.status(200);
            response.type("application/json");

            response.body(objectMapper.writeValueAsString(user));

            return response;
        }

        return response;
    }
}