import java.io.File;
import java.io.IOException;
import java.util.Scanner;

public class TriviaGame
{
public static void main(String args[]) throws IOException
{
// Constants
final int NUM_QUESTIONS = 10;
final int NUM_PLAYERS = 2;

// Variables
int playerTurn = 1; // The current player
int questionNum; // The current question number
int playerAnswer; // The player's chosen answer
int player1points = 0; // Player 1's points
int player2points = 0; // Player 2's points

// Create an array of Player objects for player #1 and player #2.
Player[] players = new Player[NUM_PLAYERS];
for (int i = 0; i < NUM_PLAYERS; i++)
{
players[i] = new Player(i+1);
}

// Create an array to hold Question objects.
Question[] questions = new [NUM_QUESTIONS];

// Initialize the array with data.
initQuestions(questions);

// Play the game.
for (int i = 0; i < NUM_QUESTIONS; i++)
{
// Display the question.
TriviaGame.displayQuestion(qArray[i], playerTurn);

// Get the player's answer.
players[playerTurn - 1].chooseAnswer();

// See if the correct answer was chosen.
if (qArray[i].getCorrectAnswerNumber() == players[playerTurn - 1].getCurrentAnswer())
{
players[playerTurn -1].incrementPoints();
}

// See if the the player chose the wrong answer.
// do nothing

// Switch players for the next iteration.
if (playerTurn == 1)
playerTurn = 2;
else
playerTurn = 1;
}

// Show the game results.
showGameResults(players);
}

/**
* The initQuestions method uses the contents of the trivia.txt file to
* populate the qArray parameter with Question objects.
*/
public static void initQuestions(Question qArray[]) throws IOException
{
// Open the trivia.txt file.
File file = new File("trivia.txt");
Scanner inputFile = new Scanner(file);

// Populate the qArray with data from the file.
for (int i = 0; i < qArray.length; i++)
{
// Create a Question object in the array.
qArray[i] = new Question();

// Get the question text from the file.
qArray[i].setQuestion(inputFile.nextLine());

// Get the possible answers.
for (int j = 1; j <= 4; j++)
{
qArray[i].setPossibleAnswer(inputFile.nextLine(), j);
}

// Get the correct answer.
qArray[i].setCorrectAnswerNumber(Integer.parseInt(inputFile.nextLine()));
}
}

public static void displayQuestion(Question q, int playerNum)
{
// Display the player number.
System.out.println("Question for player #" + playerNum);
System.out.println("------------------------");

// Display the question.
System.out.println(q.getQuestionText());
for (int i = 1; i <= 4; i++)
{
System.out.println(i + ". " + q.getPossibleAnswer(i));
}
}

public static void showGameResults(Player[] players)
{
// Display the stats.
System.out.println("Game Over!");
System.out.println("---------------------");
System.out.println("Player 1's points: " + players[0].getPoints());
System.out.println("Player 2's points: " + players[1].getPoints());

// Declare the winner.
if (players[0].getPoints() > players[1].getPoints())
System.out.println("Player 1 wins!");
else if (players[1].getPoints() > players[0].getPoints())
System.out.println("Player 2 wins!");
else
System.out.println("It's a TIE!");
}
}