package com.plannaplan.services;

import java.io.IOException;
import java.util.Map;
import java.util.concurrent.ExecutionException;

import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.core.type.TypeReference;

import com.github.scribejava.core.builder.ServiceBuilder;
import com.github.scribejava.core.model.OAuth1AccessToken;
import com.github.scribejava.core.model.OAuthRequest;
import com.github.scribejava.core.model.Response;
import com.github.scribejava.core.model.Verb;
import com.github.scribejava.core.oauth.OAuth10aService;
import com.plannaplan.api.UsosOauth1Service;
import com.plannaplan.models.UserApiResponse;

import org.springframework.beans.factory.annotation.Value;
import org.springframework.stereotype.Service;

@Service
/**
 * service to call usos api endpoints
 */
public class UsosApiService {

    private static final String NAME_FIELD = "first_name";
    private static final String SURNAME_FIELD = "last_name";

    @Value("${plannaplan.apiurl}")
    private String apiUrl;

    @Value("${plannaplan.apikey}")
    private String apikey;

    @Value("${plannaplan.apisecret}")
    private String apisecret;

    public UsosApiService() {

    }

    /**
     * /services/users/user
     * 
     * @param usosId user id in usos
     * @return UserApiResponse modle contatining desired values
     */
    public UserApiResponse getUserData(String usosId) {
        final UserApiResponse apiResponse = new UserApiResponse();
        try {
            final OAuth10aService service = new ServiceBuilder(apikey).apiSecret(apisecret)
                    .build(UsosOauth1Service.instance());

            final OAuthRequest request = new OAuthRequest(Verb.GET, apiUrl + "/services/users/user?user_id=" + usosId);
            service.signRequest(new OAuth1AccessToken("", ""), request);

            try (Response response = service.execute(request)) {
                final String json = response.getBody();
                final ObjectMapper mapper = new ObjectMapper();
                Map<String, String> map = mapper.readValue(json, new TypeReference<Map<String, String>>() {
                });
                apiResponse.setName(map.get(NAME_FIELD));
                apiResponse.setSurname(map.get(SURNAME_FIELD));
            }
        } catch (IOException | InterruptedException | ExecutionException e) {
            e.printStackTrace();
        }

        return apiResponse;
    }

}