package jena;

import java.util.Scanner;

public class Menu {

	public static void main(String[] args) {

		displayMenu();
		handleUserInput ();
	}
	
	private static void displayMenu ()
	{
		System.out.println("");
		System.out.println("Menu:   ");
		System.out.println("");
		System.out.println("1. Import data from …ppna bibliotek ");
		System.out.println("2. Read data from default file ");
		System.out.println("3. Consolidate xISBN to add other editions of each work");
		System.out.println("4. Link your resources to openlibrary.org's resources  ");
		System.out.println("0. Quit");
		System.out.println("");
	}

	private static void handleUserInput () 
	{
		RDFGenerator rdfGeneratorObject = null;

		Scanner in = new Scanner(System.in); 

		boolean quit = false;

		int choice;

		do {

			System.out.print("Choose action: ");

			choice = in.nextInt();

			try {
				switch (choice) {

				case 1:
					System.out.println("You've chosen to import data from …ppna bibliotek. ");
					System.out.println("Note that this may require an open SSH-tunell to the Biblab server. ");
					rdfGeneratorObject = new RDFGenerator("import");
					displayMenu();

					break;
					
				case 2:
					System.out.println("You've chosen to import data from the default file. ");
					rdfGeneratorObject = new RDFGenerator("file");
					displayMenu();

					break;


				case 3:
					System.out.println("You've chosen to consolidate the xISBN web service in order to add other editions of each work.");
					if (rdfGeneratorObject == null){
						rdfGeneratorObject = new RDFGenerator("file");
					}
					rdfGeneratorObject.addAlternateManifestationsOfEachExpression();                	  
					displayMenu();

					break;
					
				case 4:
					System.out.println("You've chosen to consolidate Talis' SPARQL-endpoint for openlibrary.org in order to link your resources to theirs.");
					if (rdfGeneratorObject == null){
						rdfGeneratorObject = new RDFGenerator("file");
					}
					System.out.println("This process may take a while...");
					rdfGeneratorObject.identifyEquivalentResourcesInExternalGraph();                	  
					displayMenu();

					break;
		

				case 0:
					quit = true;
					
					break;

				default:

					System.out.println("Invalid choice. Please try again.");
					displayMenu();
					
				}
			} catch (Exception e) {
				e.printStackTrace();
			}

		} while (!quit);

		System.out.println("Quitting... Welcome back!");

	}
}