import java.util.*;
import java.io.*;

/** <h1>jMusicHub</h1>
 *
 * The jMusicHub class is basically the app.
 * It is used to launch the whole process.
 *
 * @author  Aimeric ADJUTOR
 * @version 1.0
 * @since   2020-11-13
 * */

public class jMusicHub {

	/** <h2>addSong</h2>
	 * add Song is used to add songs thanks to the "c" option
	 * @param scan Scanner Object
	 */
	public static Song addSong(Scanner scan){
		System.out.println("Adding a song...");
		System.out.printf("Title : ");
		String title = scan.nextLine();
		System.out.printf("Duration (in seconds) : ");
		int duration = scan.nextInt();
		System.out.printf("Content path : ");
		String trash = scan.nextLine(); //Using this because the content scan is skip after a nexInt
		String content = scan.nextLine();
		System.out.printf("Artist : ");
		String artist = scan.nextLine();
		System.out.printf("Genre (JAZZ, CLASSICAL, HIPHOP, ROCK, POP, RAP) : ");
		String choosedGenre = scan.nextLine();
		choosedGenre = choosedGenre.toUpperCase();
		Genre genre = Genre.valueOf(choosedGenre);
		System.out.println("");

		System.out.println("Do you confirm the addition of the following song ?");
		System.out.println("Title : " + title);
		System.out.println("Duration : " + duration);
		System.out.println("Content path : " + content);
		System.out.println("Artist : " + artist);
		System.out.println("Genre : " + genre);
		System.out.println("[Y/n]");
		String confirm = scan.nextLine();

		if (confirm.equalsIgnoreCase("Y")){ //if the user is ok with what he typed, create a song obj
			Song newSong = new Song(title, duration, content, artist,genre);
			return newSong;
//				songs.add(newSong);
		} else {
			System.out.println("Aborting...");
			System.out.println("");
			return null;
		}
	}

	public jMusicHub() {

		System.out.println("Welcome to the jMusicHub !\n");

		Scanner scan = new Scanner(System.in);
		String userInput; //Used to get the user's inputs.

		ArrayList<Song> songs = new ArrayList<Song>();
		//used to temporarly save the songs before any "s" command

		System.out.println("Starting extraction");
		//Here will be the process to extract the files
/*	        try {
			FileOutputStream fos = new FileOutputStream(file);
			ObjectOutputStream oos = new ObjectOutputStream(fos);
			oos.writeObject(albums);
			oos.close();
			fos.close();
		}
		catch (IOException ioe) {
			ioe.printStackTrace();
			return;
		}*/
		System.out.println("Extraction done\n");
		//Here will be the number of playlist, albums, songs and auidobook extracted

		do {
			System.out.println("What do you want to do? [h for help]");
			userInput = scan.nextLine();
			switch(userInput) {
				case "h" : //page help
					System.out.printf("c: add a new song\na: add a new album\n+: add an existing song to an album\nl: add a new audiobook\np: create a new playlist from existing songs and audiobooks\n-: delete a playlist\ns: save playlists, albums, songs and audiobooks into the concerned files\nh: print this help screen\nq: quit the program\n");
					break;
				case "q" :
					System.out.println("Goodbye !");
					break;

				case "c":
					try { //If something goes wrong, abort
						Song newSong=addSong(scan);
						if (newSong != null){
							songs.add(newSong);
							System.out.println("Actual content of your songs list (you must save it (s) to do anything else with your songs) :");
							for (Song iSong : songs){
							   System.out.println(iSong);
							}
							System.out.println("");

						}
					} catch (InputMismatchException | IllegalArgumentException e) {
						System.out.println("You typed something wrong... I'm aborting..");
						System.out.println("");
					}
					break;

				case "a":
					break;
				case "+":
					break;
				case "l":
					break;
				case "p":
					break;
				case "-":
					break;
				case "s":
					for (Song s: songs){
						String filename = "songs.csv";

						// Serialization
						try {

						    // Saving of object in a file
						    FileOutputStream file = new FileOutputStream
						                                   (filename);
						    ObjectOutputStream out = new ObjectOutputStream
						                                   (file);

						    // Method for serialization of object
						    out.writeObject(s);

						    out.close();
						    file.close();

						    System.out.println("Object has been serialized\n"
						                      + "Data before Deserialization.");
						    System.out.println(s);
						}
						catch (IOException ex) {
						    System.out.println("IOException is caught");
						}
					}
					break;

				default :
					System.out.println("Unknown command. Type h for help.");

			}
		} while(!userInput.equals("q"));

	}

	public static void main(String[] args) {
		new jMusicHub();
	}
}