package service;

import java.util.List;

import javax.ws.rs.client.Client;
import javax.ws.rs.client.ClientBuilder;
import javax.ws.rs.client.Entity;
import javax.ws.rs.client.WebTarget;
import javax.ws.rs.core.GenericType;
import javax.ws.rs.core.MediaType;
import javax.ws.rs.core.Response;

import org.glassfish.jersey.client.ClientConfig;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.fasterxml.jackson.jaxrs.json.JacksonJsonProvider;

import domaine.Student;

public class StudentServiceClient implements IStudentServiceClient {

	
	private static final String url = "http://localhost:8004/SpringMVC/servlet/student/";

	
	
	public StudentServiceClient() {
		super();
		// TODO Auto-generated constructor stub
	}

	/**
	 * Methode pour recuperer la liste des etudiants
	 * @return 
	 */
	@Override
	public List<Student> getListStudent(){
		ClientConfig clientConfig = new ClientConfig();
		clientConfig.register(JacksonJsonProvider.class);
		
		
		Client client = ClientBuilder.newClient(clientConfig);
		WebTarget webTarget = client.target(url).path("getAll");
		
		Response response = webTarget.request("application/json").get();
		 
		List<Student> listEtudiant = response.readEntity(new GenericType<List<Student>>(){});
		System.out.println("etudiants : " +listEtudiant);
		

		return listEtudiant;
		
	}
	
	
	/**
	 * Methode pour crée un étudiant
	 * @param student
	 * @return 
	 */
	
	@Override
	public Response createStudent(Student student)
	{
		
		Response response = null;
		
		Client client = ClientBuilder.newClient();

		WebTarget webTarget = client.target(url).path("create");

		ObjectMapper objectMapper = new ObjectMapper();
		String input;
		
		try {
			input = objectMapper.writeValueAsString(student);
			response = webTarget.request("application/json").post(Entity.json(input));
			
		} catch (JsonProcessingException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		return response;
		
	}


	/**
	 * Methode pour recuperer un etudiant par son id
	 * @param id
	 * @return
	 */
	@Override
	public Student getStudentById(Long id) {
		
		
		Client client = ClientBuilder.newClient();
		WebTarget webTarget = client.target(url).path("detail/"+id);
		
		Response response = webTarget.request("application/json").get();
 
		  return response.readEntity(Student.class);
		
	}
	

	/**
	 * ethode de recherche d'etudiant par son nom et prenom
	 * @param first_name
	 * @param last_name
	 * @return
	 */
	@Override
	public List<Student> getStudentByFirstAndLastName(String first_name , String last_name) {
		
		Client client = ClientBuilder.newClient();
		WebTarget webTarget = client.target(url).path("research/"+first_name+"/"+last_name);
		
		Response response = webTarget.request("application/json").get();
		  List<Student> listEtudiant = response.readEntity(new GenericType<List<Student>>() {});
 
		  return listEtudiant;
		
	}
	
	
	/**
	 * Methode de suppression d'etudiant
	 * @param id
	 * @return
	 */
	@Override
	public Response deleteStudent(int id) {
		Client client = ClientBuilder.newClient();

		WebTarget webTarget = client.target(url).path("delete/"+id);
		
		Response response = webTarget.request("application/json").delete();

		return response;

	}

	
	/**
	 * Methode de mise a jour des informations d'un etudiant
	 * @param id
	 * @param etudiant
	 * @return
	 */
	@Override
	public Response updateStudent(Long id, Student etudiant) {
		
		Client client = ClientBuilder.newClient();

		WebTarget webTarget = client.target(url).path("update/"+id);
		
		
		Response response = webTarget.request("application/json").put(Entity.entity(etudiant, MediaType.APPLICATION_JSON));
		return response;		
		
	}
	

}