package Application;

import java.io.IOException;
import java.io.InputStream;
import java.io.InputStreamReader;
import java.util.Scanner;
import java.util.StringTokenizer;
import java.io.BufferedReader;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.util.ArrayList;
import java.util.Arrays;
import java.util.Collections;
import java.util.Random;

/**
 * @author olayaperezlozano
 * @author rosamary
 *
 */
public class BasicQuestions{

	public static Scanner input = new Scanner(System.in);
	//i = row
	//j = column

	/**
	 * @param args
	 * The csv file needs to be added to locate it and to read it.
	 * @throws IOException
	 *
	 */
	public static void basicQuestions( ) throws IOException{
		BufferedReader stdIn = new BufferedReader (new InputStreamReader(System.in));
		String[][] aOneQuestions = new String[30][5];
		String aQuestions = "OrganicChemistryOneQuestions.csv";
		String line = null;
		BufferedReader br = null;
		StringTokenizer st;
		int i=0;
		int j=0;

		//System.out.println("entrando al loop");
		try{
			br = new BufferedReader(new FileReader(aQuestions));

			while ((line=br.readLine()) !=null){
				st = new StringTokenizer(line, ",");
				//				System.out.println("Loop 1 " +i);
				while (st.hasMoreTokens())
				{
					aOneQuestions[i][j]= st.nextToken();
					//					System.out.println("Loop 2 " +j);
					j++;
				}
				j = 0;
				i++;
			}
			//			System.out.println("Salio");
		}


		catch (FileNotFoundException e){
			e.printStackTrace();
		}catch (IOException e){
			e.printStackTrace();
		}
		finally{
			if (br != null){
				try{
					br.close();
				}catch (IOException e) {
					e.printStackTrace();
				}


			}

		}


		//insert it here
		System.out.println("This is the basic chemistry questions quiz.");
		System.out.println(" ");
		System.out.println("For every question please insert the letter of the correct answer.");
		System.out.println(" ");


		ArrayList<Integer> list = new ArrayList<Integer>();
		for (int r =1; r<30; r++) {
			list.add(new Integer(r));
		}
		Collections.shuffle(list);
		for (int r=0; r<10; r++) {
			//System.out.println(list.get(r));
		}


		String[][] quiz = new String[10][5];

		int a = list.get(0);
		quiz[0][0] = aOneQuestions[a][0];
		quiz[0][1] = aOneQuestions[a][1];
		quiz[0][2] = aOneQuestions[a][2];
		quiz[0][3] = aOneQuestions[a][3];
		quiz[0][4] = aOneQuestions[a][4];

		int b = list.get(1);
		quiz[1][0] = aOneQuestions[b][0];
		quiz[1][1] = aOneQuestions[b][1];
		quiz[1][2] = aOneQuestions[b][2];
		quiz[1][3] = aOneQuestions[b][3];
		quiz[1][4] = aOneQuestions[b][4];

		int c = list.get(2);
		quiz[2][0] = aOneQuestions[c][0];
		quiz[2][1] = aOneQuestions[c][1];
		quiz[2][2] = aOneQuestions[c][2];
		quiz[2][3] = aOneQuestions[c][3];
		quiz[2][4] = aOneQuestions[c][4];

		int d = list.get(3);
		quiz[3][0] = aOneQuestions[d][0];
		quiz[3][1] = aOneQuestions[d][1];
		quiz[3][2] = aOneQuestions[d][2];
		quiz[3][3] = aOneQuestions[d][3];
		quiz[3][4] = aOneQuestions[d][4];

		int e = list.get(4);
		quiz[4][0] = aOneQuestions[e][0];
		quiz[4][1] = aOneQuestions[e][1];
		quiz[4][2] = aOneQuestions[e][2];
		quiz[4][3] = aOneQuestions[e][3];
		quiz[4][4] = aOneQuestions[e][4];

		int f = list.get(5);
		quiz[5][0] = aOneQuestions[f][0];
		quiz[5][1] = aOneQuestions[f][1];
		quiz[5][2] = aOneQuestions[f][2];
		quiz[5][3] = aOneQuestions[f][3];
		quiz[5][4] = aOneQuestions[f][4];

		int g = list.get(6);
		quiz[6][0] = aOneQuestions[g][0];
		quiz[6][1] = aOneQuestions[g][1];
		quiz[6][2] = aOneQuestions[g][2];
		quiz[6][3] = aOneQuestions[g][3];
		quiz[6][4] = aOneQuestions[g][4];

		int h = list.get(7);
		quiz[7][0] = aOneQuestions[h][0];
		quiz[7][1] = aOneQuestions[h][1];
		quiz[7][2] = aOneQuestions[h][2];
		quiz[7][3] = aOneQuestions[h][3];
		quiz[7][4] = aOneQuestions[h][4];

		int k = list.get(8);
		quiz[8][0] = aOneQuestions[k][0];
		quiz[8][1] = aOneQuestions[k][1];
		quiz[8][2] = aOneQuestions[k][2];
		quiz[8][3] = aOneQuestions[k][3];
		quiz[8][4] = aOneQuestions[k][4];

		int l = list.get(9);
		quiz[9][0] = aOneQuestions[l][0];
		quiz[9][1] = aOneQuestions[l][1];
		quiz[9][2] = aOneQuestions[l][2];
		quiz[9][3] = aOneQuestions[l][3];


		int total = 0;

		char answer = 0;


		//System.out.println(answer + quiz[9][3]);


		for(int p=0;p < quiz.length; p++){

			System.out.println(p+"."+quiz[p][0]);

			System.out.println("a. " + quiz[p][1]);

			System.out.println("b. " + quiz[p][2]);

			System.out.println("c. " + quiz[p][3]);

			System.out.println(p);

			answer = input.next().charAt(0);


			switch(answer){

			case 'a' :

				if(quiz[p][4].equals("a")){

					total = total+10;

					System.out.println("Right answer!");

				} else{


					System.out.println("Wrong answer!");

				}

				break;


			case 'b':

				if(quiz[p][4].equals("b")){

					total = total+10;

					System.out.println("Right answer!");

				} else{

					System.out.println("Wrong answer!");

				}

				break;


			case 'c':

				if(quiz[p][4].equals("c")){

					total = total+10;

					System.out.println("Right answer!");

				} else{

					System.out.println("Wrong answer!");

				}


				break;

			default:

				System.out.println("Invalid input, please try again.");

				break;


			}



		}

		System.out.println("You grade is: " + total);

		System.out.println("Have an excellent day");
	}

}