/**
 * 2023 frq 1.
 * AppointmentBook 
 * 
 * implementation and test code: Chris Thiel, OFMCap
 * 
 */
public class AppointmentBook
{
    private boolean[][] minutes;
    private static final boolean FREE = true;
    private static final boolean NOT_FREE = false;
    /**
     * part (a) 
     */
    public int findFreeBlock(int period, int duration)
    {
        return -11; // Replace with your code
    }

    /**
     * part (b)
     */
    public boolean makeAppointment(int startPeriod, int endPeriod, int duration)
    {
        
        return false;// Replace with your code
    }

    /**
     * true is min in period available
     * Pre conditions: 1 <= per <=8, 0<= min <= 59
     */
    private boolean isMinuteFree(int period, int minute)
    {
        // my own implementation
        return minutes[period][minute] == FREE;
    }

    private void reserveBlock(int period, int start, int dur)
    {
        for (int i=0; i < dur; i++)
            minutes[period][start+i] = NOT_FREE;
    }

    public AppointmentBook()
    {
        minutes = new boolean[9][60];
        for(int p=0; p<=8; p++)
            for(int m=0; m<60; m++)
                minutes[p][m] = FREE;
        reserveBlock(0, 0, 60);

    }

    public String toString()
    {
        String s="";
        for(int p=2; p<=4; p++)
        {
            s += "Period "+p+"\n00: ";
            for(int i=0; i<60; i++)
            {
                if (minutes[p][i]==FREE) 
                    s+="o";
                else
                    s+="x";
                if (  (i+1)%10 == 0 && (i+1)<60)
                    s+="\n"+(i+1)+": ";
            }
            s +="\n";

        }
        return s;
    }

    public static  void main( String[] args )
    {
        AppointmentBook a = new AppointmentBook();
        // set to values in part (a) example;     
        a.reserveBlock(2, 0, 10);
        a.reserveBlock(2, 15, 15);
        a.reserveBlock(2, 45, 5);
        //System.out.println(a);
        

        System.out.println("part a findFreeBlock(2,15) returns "+
            a.findFreeBlock(2,15) + "(should be 30)");
        System.out.println("part a findFreeBlock(2,9) returns "+
            a.findFreeBlock(2,9) + "(should be 30)");
        System.out.println("part a findFreeBlock(2,20) returns "+
            a.findFreeBlock(2,20) + "(should be -1)");

        AppointmentBook b = new AppointmentBook();
        b.reserveBlock(2, 0, 25);
        b.reserveBlock(2, 30,30);
        b.reserveBlock(3, 15, 26);
        b.reserveBlock(4, 0, 5);
        b.reserveBlock(4, 30, 14);
        // System.out.println(b);
        System.out.println("\npart b.makeAppointment(2,4,22) returns "+
            b.makeAppointment(2,4,22) + "(should be true)");  
        System.out.println("part b.makeAppointment(3,4,3) returns "+
            b.makeAppointment(3,4,3) + "(should be true)");  
        System.out.println("part b.makeAppointment(2,4,30) returns "+
            b.makeAppointment(2,4,30) + "(should be false)");  
        System.out.println(b);
    }

}