/*
    Create1.java
    CIS 111
    10/31/07
    David Klick

    This program generates a text file with some randomized
    data that we can use for a control break report. The file
    is intended for sequential access use.
*/

public class Create1 extends CIS111App {
    public static void main(String[] args) {
        int month, day, year;
        int days;
        double sales;
        SequentialFile fileout;
        String filename = "sales.txt";
        int recs;

        // clear screen and open output file
        clearConsole();
        fileout = new SequentialFile(filename, FileMode.OUTPUT);

        // generate a sales record for each day in
        //      months 10 and 11 of the year 2007
        recs = 0;
        year = 2007;
        for (month=10; month<=11; month++) {
            // get the number of days in a particular month
            days = daysInMonth(month, year);
            for (day=1; day<=days; day++) {
                // generate a random amount $30,000.00 - $129,999.99
                sales = random(3000000, 12999999) / 100.0;
                fileout.writeln(year, month, day, sales);
                recs = recs + 1;
            }
        }

        // display something on screen to let user know program worked
        println("File created (" + recs + " records total)");

        // close output file
        fileout.close();
   }
 
    private static int daysInMonth(int m, int y) {
        // given the month and year, return the number
        // of days for that month
        int d = 31;
        if (m==4 || m==6 || m==9 || m==11) d=30;
        if (m==2) {
            d = 28;
            if (y % 4 == 0) d = 29;
            if (y % 100 == 0) d = 28;
            if (y % 400 == 0) d = 29;
        }
        return d;
    }
}