package com.camillepradel.movierecommender.controller;

import java.util.Arrays;
import java.util.LinkedList;
import java.util.List;

import org.springframework.stereotype.Controller;
import org.springframework.web.bind.annotation.RequestMapping;
import org.springframework.web.bind.annotation.RequestParam;
import org.springframework.web.servlet.ModelAndView;

import com.camillepradel.movierecommender.model.Genre;
import com.camillepradel.movierecommender.model.Movie;
import java.net.ConnectException;
import java.util.logging.Level;
import java.util.logging.Logger;
import org.neo4j.driver.v1.Record;
import org.neo4j.driver.v1.Session;
import org.neo4j.driver.v1.StatementResult;

@Controller
public class MainController {
	String message = "Welcome to Spring MVC!";
 
	@RequestMapping("/hello")
	public ModelAndView showMessage(
			@RequestParam(value = "name", required = false, defaultValue = "World") String name) {
		System.out.println("in controller");
 
		ModelAndView mv = new ModelAndView("helloworld");

                Session session = null;
                try {
                session =Neo4jConnector.getInstance().getConnection();
                
                } catch (ConnectException ex) {
                Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex);
                }
                StatementResult result = session.run( "MATCH (u:User) RETURN COUNT( DISTINCT u.occupation) AS CPT" );
                while ( result.hasNext() )
                {
                Record record = result.next();
                System.out.println( record.toString() );
                 mv.addObject("message", record.get( "CPT" ));
                }
                
                try {
                Neo4jConnector.getInstance().close();
            } catch (ConnectException ex) {
                Logger.getLogger(MainController.class.getName()).log(Level.SEVERE, null, ex);
            }
                
               
		mv.addObject("name", name);
		return mv;

      
	}

	@RequestMapping("/movies")
	public ModelAndView showMovies(
			@RequestParam(value = "user_id", required = false) Integer userId) {
		System.out.println("show Movies of user " + userId);

		// TODO: write query to retrieve all movies from DB or all movies rated by user with id userId,
		// depending on whether or not a value was given for userId
		List<Movie> movies = new LinkedList<Movie>();
		Genre genre0 = new Genre(0, "genre0");
		Genre genre1 = new Genre(1, "genre1");
		Genre genre2 = new Genre(2, "genre2");
		movies.add(new Movie(0, "Titre 0", Arrays.asList(new Genre[] {genre0, genre1})));
		movies.add(new Movie(1, "Titre 1", Arrays.asList(new Genre[] {genre0, genre2})));
		movies.add(new Movie(2, "Titre 2", Arrays.asList(new Genre[] {genre1})));
		movies.add(new Movie(3, "Titre 3", Arrays.asList(new Genre[] {genre0, genre1, genre2})));

		ModelAndView mv = new ModelAndView("movies");
		mv.addObject("userId", userId);
		mv.addObject("movies", movies);
		return mv;
                
                
	}
}