import java.util.Arrays;

/**
 * @author forbes
 */
public class SlotsTest
{
    private int[] myStopIndices;
    private SlotMachine myMachine;


    public SlotsTest (SlotMachine machine)
    {
        myMachine = machine;
    }

    public void testCalculateWinnings (int[] spin, int bet, int correct)
    {
        int result = myMachine.calculateWinnings(spin, bet);
        if (result == correct)
        {
            System.out.print("pass");
        } 
        else
        {
            System.out.print("failed testCalculateWinnings spin:");
            printArray(spin);
            System.out.print(" bet: " + bet);
            System.out.print(" expected \"" + correct + "\"");
            System.out.print(" got \"" + result + "\"");
        }
        System.out.println();
    }

    // Test an individual spin given virtualReelSettings
    public void testSpin(int[] virtualReelSettings, int[] correct)
    {
        int[] currentSpin = myMachine.spin(virtualReelSettings);
        if (Arrays.equals(currentSpin, correct))
        {
            System.out.print("pass");
        } 
        else
        {
            System.out.print("failed testSpin virtualReelSettings:");
            printArray(virtualReelSettings);
            System.out.print(" expected ");
            printArray(correct);
            System.out.print(" got ");
            printArray(currentSpin);
        }
        System.out.println();
    }

    // Report spin statistics based on a number of trials
    public void testSpinStatistics(int trials)
    {
        int[] virtualReels = myMachine.getVirtualReelMap();
        int[] currentSpin;

        // TODO: keep track of spin statistics
        for (int i = 0; i < trials; i++)
        {
            System.out.print("Spin #" + (i + 1) + ": ");
            currentSpin = myMachine.spin();
            printArray(currentSpin);
            System.out.println();
        }
    }

    // print an integer array in standard form without a newline at the end
    private void printArray(int[] a)
    {
        System.out.print("[");
        for (int i = 0; i < a.length - 1; i++)
            System.out.print(a[i] + ", ");
        // handle last one (fencepost)
        if (a.length > 0)
            System.out.print(a[a.length - 1] + "");
        System.out.print("]");
    }

    public static void main(String[] args)
    {
        // Create tester
        SlotsTest test = new SlotsTest(new SlotMachine(
            new int[] { 0, 1, 1, 1, 1, 2, 4 },
            new int[] { 0, 0, 2, 10 }, 
            new int[] { 0, 1, 2, 3, 4, 5, 6 } ));


        test.testCalculateWinnings(new int[] { 0, 1, 2 }, 1, 0);
        test.testCalculateWinnings(new int[] { 0, 1, 1 }, 1, 2);
        // TODO: add more test cases for testCalculateWinnings


        test.testSpin(
            new int[] { 1, 2, 3 },
            new int[] { 1, 2, 3 });
        // TODO: add more test cases for testSpin


        test.testSpinStatistics(100);


        // TODO: add more SlotsTest objects and related tests
    }
}