/*
 * P0Main.java
 *
 * Created on January 6, 2003, 9:22 PM
 */

package project0;

/** CSE143 03wi Project 0: "Does The God of Luck Know You?".
 *  Driver class.  Your program will be tested with this, but you won't be
 *  able to turn in a modified version.
 * 
 */
public class P0Main {
    
    /** Number of individual trials to run.  3 is chosen as being a mystical number.*/
    public static final int trialsToRun = 3; 
    /** Default value in case an argument is not supplied on the command line. */

    //public static final String defaultInitials = "X"; //test value (error)
    //public static final String defaultInitials = "A1"; //test value (error)
    //public static final String defaultInitials = "ABC"; //test value (error)
    public static final String defaultInitials = "MD";
        
    /** Driver program for the application; not to be changed!
     * This main should be invoked from the command line, with
        a single string argument (a string of exactly two uppercase letters); 
        in Bluej, it can
     *  be run directly and an argument string typed into the dialog box.
     */
    public static void main (String[] args) {
        System.out.println("\nThis program will invoke the god/goddess of luck " +
                            "and determine how well the deity knows you.");
        if (args.length != 1) {
            System.out.println("Next time, please supply exactly one argument: " +
                    "a string of two upper case letters.");
            args = new String[] {defaultInitials}; //dummy up the argument array
            System.out.println("Continuing with the default argument " + 
                    args[0]);
        }
        String yourInitials = args[0];
        System.out.println("\n" + yourInitials + ", you may enter the temple.");
        invokeTheGodsOfLuck(yourInitials);
        System.out.println("The session is over, " + yourInitials + "." +
                            " Exit temple on the left.");    
    //end main
    }
    
    private static void invokeTheGodsOfLuck(String initials) {
        LuckTester tester = new LuckTester();
        boolean initialsAreOK = tester.checkInitials(initials);
        if (!initialsAreOK) {
            System.out.println("Violation! " + initials + 
                    " is not a suitable pair of initials.  You have insulted the deities.");
            return;
        }
        System.out.println("O great deities of Luck, we ask you " + trialsToRun +
                " times: How well do you know " + initials + "?");
        int trialsSum = 0;  //total number of invocations (trials) so far
        for (int t = 1; t <= trialsToRun; t++) {
            int result = tester.tryUntilSuccess(initials);
            System.out.println("Trial #:" + t + " " + result + 
                              " pairs before success, implying " +
                                tester.interpret(result));
            trialsSum += result;
        }
        double averageResult = ((double) trialsSum) / trialsToRun;
        String resultEvaluation = tester.interpret(averageResult);
        System.out.println("\n Overall evaluation after " + trialsToRun + " trials: " +
                    averageResult + ".  The message is clear:\n    " + resultEvaluation);
    //end invokeTheGodsOfLuck    
    }

    
}