CIS 131 Lab 1

import java.awt.*;
import java.util.*;

/**
* @author - Kurtis Renth
* @version - CIS 131 Lab 1
*/

public class CIS131Lab1 {

    //constants
    final static double RATE_MON_FRI = 1.25;
    final static double RATE_SAT_SUN = 0.50;
    final static double MIN_MON_FRI = 3.00;
    final static double MIN_SAT_SUN = 2.00;
    final static double MAX_MON_FRI = 15.00;
    final static double MAX_SAT_SUN = 10.00;
    final static int MAX_TIME = 2359;
    final static int MIN_TIME = 0;
    final static double INTERVAL_TIME = 15.0;
    final static String SENTINEL = "quit";
    final static int MAX_TIME_IN_MIN = 1440;

/**
* Entry point for this program
* @param args - not used for this program
*/
    public static void main (String [] args) {

            double allTotalOwed = 0;
            double totalOwed = 0;
            displayLabInformation();
            displayWelcome();
            String dayOfWeek = getDayOfWeek();

            while (dayOfWeek != SENTINEL) {

                int arrivalTime = getUserTime("Please enter the vehicle's arrival time    (HHMM) : ");
                int departTime = getUserTime("Please enter the vehicle's departure time  (HHMM) : ");
                int totalArriveMin = getTotalMinutes(arrivalTime);
                int totalDepartMin = getTotalMinutes(departTime);
                int totalParkingTime = getTotalParkingTime(arrivalTime, departTime);
                double getNumIntervals = getNumIntervals(arrivalTime, departTime);
                double rate = getRate(dayOfWeek);
                totalOwed = getTotalOwed(totalParkingTime, rate, getNumIntervals, dayOfWeek);
                displayReceipt(dayOfWeek, arrivalTime, departTime, totalParkingTime, rate, totalOwed);
                dayOfWeek = getDayOfWeek();
                allTotalOwed = allTotalOwed + totalOwed;
            }

            displayFinalTotal(allTotalOwed);
            displayGoodbye();

        }

    //Displays the welcome message
    public static void displayWelcome () {

        System.out.println();
        System.out.println("******************************");
        System.out.println();
        System.out.println("     Renth Parking Gargage    ");
        System.out.println();
        System.out.println("******************************");
        System.out.println();

    }

    /**
    * Gets the day of the week
    * @return - returns the day of the week (String value)
    */
    public static String getDayOfWeek () {

        String day1 = "Monday";
        String day2 = "Tuesday";
        String day3 = "Wednesday";
        String day4 = "Thursday";
        String day5 = "Friday";
        String day6 = "Saturday";
        String day7 = "Sunday";
        System.out.println();
        String dayOfWeek = IR4.getString("Please enter the day of the week (mon, tue, wed, thu, fri, sat, sun) or quit: ");
        dayOfWeek = dayOfWeek.toLowerCase();

        while (!(dayOfWeek.startsWith("m") || dayOfWeek.startsWith("tu") || dayOfWeek.startsWith("w") ||        dayOfWeek.startsWith("th") || dayOfWeek.startsWith("f") || dayOfWeek.startsWith("sa") || dayOfWeek.startsWith("su") || dayOfWeek.startsWith("q"))) {
            System.out.println();
            System.out.println("Error: Invalid day of the week. Please try again!");
            dayOfWeek = IR4.getString("Please enter the day of the week (mon, tue, wed, thu, fri, sat, sun) or quit: ");
            System.out.println();
        }

        if (dayOfWeek.startsWith("m")) {
            dayOfWeek = day1;
        } else if (dayOfWeek.startsWith("tu")) {
            dayOfWeek = day2;
        } else if (dayOfWeek.startsWith("w")) {
            dayOfWeek = day3;
        } else if (dayOfWeek.startsWith("th")) {
            dayOfWeek = day4;
        } else if (dayOfWeek.startsWith("f")) {
            dayOfWeek = day5;
        } else if (dayOfWeek.startsWith("sa")) {
            dayOfWeek = day6;
        } else if (dayOfWeek.startsWith("su")) {
            dayOfWeek = day7;
        } else if (dayOfWeek.startsWith("q")) {
            dayOfWeek = SENTINEL;
        }

        return dayOfWeek;
    }

    /**
    * Gets the time the user entered for arrival/departure
    * @param message - Sends a message to userTime within getUserTime to display a prompt message
    * @return returns an int value that is either the arrival or departure time
    */

    public static int getUserTime (String message) {

        int userTime = IR4.getInteger(message);

        while (isTimeValid(userTime)) {
            userTime = IR4.getInteger(message);
            System.out.println();
        }

        return userTime;
    }

    /**
    * Does the math needed to convert the user entered time into total minutes
    * @param time - passes in the time the user entered from getUserTime
    * @return returns an int value that is the time the user entered converted to total minutes
    */

    public static int getTotalMinutes (int time) {

        int totalMin = 0;
        int minuteTime = time % 100;
        int hourTime = (time - minuteTime) / 100;
        totalMin = (hourTime * 60) + minuteTime;
        return totalMin;
    }

    /**
    * Does the math needed to calculate the total amount of minutes spent parking
    * @param arrivalTime,departTime - passes the total time in minutes from the values the user entered for depart and arrival minutes
    * @return returns an int value that is the total amount of time in minutes the car spent parked
    */

    public static int getTotalParkingTime (int arrivalTime, int departTime) {

        int totalParkingTime = 0;
        int totalArriveMin = getTotalMinutes(arrivalTime);
        int totalDepartMin = getTotalMinutes(departTime);

        if (totalArriveMin > totalDepartMin) {
            totalParkingTime = (MAX_TIME_IN_MIN - totalArriveMin) + totalDepartMin;
        } else {
            totalParkingTime = totalDepartMin - totalArriveMin;
        }

        return totalParkingTime;
    }

    /**
    * Gets the number of intervals the car spent parked
    * @param arrivalTime,departTime - passes in the total time in minutes for the arrival and departure time
    * @return returns a double value that is the total amount of intervals the car stayed parked
    */

    public static double getNumIntervals (int arrivalTime, int departTime) {

        double numIntervals = 0;
        int totalParkingTime = getTotalParkingTime(arrivalTime, departTime);
        numIntervals = totalParkingTime / INTERVAL_TIME;
        return numIntervals;
    }

    /**
    * Calculates the rate based on what day of the week it is
    * @param getDayOfWeek - passes in the day of the week the user entered
    * @return returns a double value that is the rate the user is charged for based on a certain day
    */

    public static double getRate (String getDayOfWeek) {

        String day1 = "Monday";
        String day2 = "Tuesday";
        String day3 = "Wednesday";
        String day4 = "Thursday";
        String day5 = "Friday";
        String day6 = "Saturday";
        String day7 = "Sunday";
        double rate = 0;
        String dayOfWeek = getDayOfWeek;

        if (dayOfWeek.equalsIgnoreCase(day1)) {
            rate = RATE_MON_FRI;
        } else if (dayOfWeek.equalsIgnoreCase(day2)) {
            rate = RATE_MON_FRI;
        } else if (dayOfWeek.equalsIgnoreCase(day3)) {
            rate = RATE_MON_FRI;
        } else if (dayOfWeek.equalsIgnoreCase(day4)) {
            rate = RATE_MON_FRI;
        } else if (dayOfWeek.equalsIgnoreCase(day5)) {
            rate = RATE_MON_FRI;
        } else if (dayOfWeek.equalsIgnoreCase(day6)) {
            rate = RATE_SAT_SUN;
        } else if (dayOfWeek.equalsIgnoreCase(day7)) {
            rate = RATE_SAT_SUN;
        }

        return rate;
    }

    /**
    * Calculates the total the user owes
    * @param totalParkTime - the total amount of time in minutes the user spent parked
    * @param rate - the rate used for the period their car was parked
    * @param numIntervals - the total number of intervals of 15 minutes over the span of the total parking time
    * @param dayOfWeek - the day of the week the car was parked
    * @return - returns a double value that is the total amount of money owed
    */

    public static double getTotalOwed (int totalParkTime, double rate, double numIntervals, String dayOfWeek) {

        String day1 = "Monday";
        String day2 = "Tuesday";
        String day3 = "Wednesday";
        String day4 = "Thursday";
        String day5 = "Friday";
        String day6 = "Saturday";
        String day7 = "Sunday";
        double remainder = 0;
        double totalOwed = 0;

        double floorInterval = 0;

        if (totalParkTime < INTERVAL_TIME) {
            totalOwed = 0;
        } else if (numIntervals % 100 > 0) {
            numIntervals = Math.ceil(numIntervals);
        }

        totalOwed = rate * numIntervals;

        if (totalOwed > MAX_MON_FRI && dayOfWeek.equals(day1)) {
            totalOwed = MAX_MON_FRI;
        } else if (totalOwed > MAX_MON_FRI && dayOfWeek.equals(day2)) {
            totalOwed = MAX_MON_FRI;
        } else if (totalOwed > MAX_MON_FRI && dayOfWeek.equals(day3)) {
            totalOwed = MAX_MON_FRI;
        } else if (totalOwed > MAX_MON_FRI && dayOfWeek.equals(day4)) {
            totalOwed = MAX_MON_FRI;
        } else if (totalOwed > MAX_MON_FRI && dayOfWeek.equals(day5)) {
            totalOwed = MAX_MON_FRI;
        } else if (totalOwed > MAX_SAT_SUN && dayOfWeek.equals(day6)) {
            totalOwed = MAX_SAT_SUN;
        } else if (totalOwed > MAX_SAT_SUN && dayOfWeek.equals(day7)) {
            totalOwed = MAX_SAT_SUN;
        } else if (totalOwed < MIN_MON_FRI && dayOfWeek.equals(day1) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_MON_FRI;
        } else if (totalOwed < MIN_MON_FRI && dayOfWeek.equals(day2) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_MON_FRI;
        } else if (totalOwed < MIN_MON_FRI && dayOfWeek.equals(day3) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_MON_FRI;
        } else if (totalOwed < MIN_MON_FRI && dayOfWeek.equals(day4) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_MON_FRI;
        } else if (totalOwed < MIN_MON_FRI && dayOfWeek.equals(day5) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_MON_FRI;
        } else if (totalOwed < MIN_SAT_SUN && dayOfWeek.equals(day6) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_SAT_SUN;
        } else if (totalOwed < MIN_SAT_SUN && dayOfWeek.equals(day7) && totalParkTime >= INTERVAL_TIME) {
            totalOwed = MIN_SAT_SUN;
        } else if (totalParkTime < INTERVAL_TIME) {
            totalOwed = 0.0;
        }

        return totalOwed;
    }

    /**
    * Validates whether the user entered time is valid or invalid
    * @param time - the variable passed in for the user entered arrival/departure time
    * @return - returns a boolean is the time is valid or invalid
    */

    public static boolean isTimeValid (int time) {

        if (time > MAX_TIME) {
            System.out.println("Error: Invalid time entry. Entered time is too high. Please try again!");
            System.out.println();
            return true;
        }

        if (time % 100 > 59) {
            System.out.println("Error: Please enter the arrival time as standard 24 hour time input!");
            System.out.println();
            return true;
        }

        if (time < MIN_TIME) {
            System.out.println("Error: Invalid time entry, Entered time is too low. Please try again!");
            System.out.println();
            return true;
        }

        return false;
    }

    //Displays the Lab information
    public static void displayLabInformation () {

        System.out.println();
        System.out.println("Welcome! This Program allows the user to enter");
        System.out.println("a day of the week and then an arrival");
        System.out.println("time and finally a departure time. The");
        System.out.println("program then calculates the final cost");
        System.out.println("for parking there during the duration");
        System.out.println("the user entered and shows a receipt!");
    }

    /**
    * Displays the receipt for the user entered info for the parking garage
    * @param dayOfWeek - User entered day of the week
    * @param arrivalTime - User entered time the car arrived
    * @param departTime - User entered time the car departed
    * @param totalParkingTime - Total time spent parked in minutes
    * @param rate - Rate used for a certain time of the week for the parking gargae
    * @param amountCharged - Total amount charged for the user's parking duration
    */

    public static void displayReceipt (String dayOfWeek, int arrivalTime, int departTime, int totalParkingTime, double rate, double amountCharged) {

        System.out.println();
        System.out.println("**************************************");
        System.out.println();
        System.out.println("        Renth Parking Gargage    ");
        System.out.println("            Sales Receipt        ");
        System.out.println();
        System.out.println("**************************************");
        System.out.println("Day of Week: " + dayOfWeek);
        System.out.println("Rate: $" + rate + " per 15 minute interval");
        System.out.println();
        System.out.printf("%-19s%5d%n","Arrival Time:", arrivalTime);
        System.out.printf("%-19s%5d%n","Departure Time:", departTime);
        System.out.printf("%-19s%5d%s%n%n","Parking Duration:", totalParkingTime, " minutes");
        System.out.printf("%-18s%s%.2f%n", "Amount Charged: ","$", amountCharged);
        System.out.println("***************************************");
    }

    /**
    * Calculates the running total owed of parking charges
    * @param allTotalOwed - variable that holds the total charge for every purchase made.
    */

    public static void displayFinalTotal (double allTotalOwed) {

        System.out.println();
        System.out.printf("%s%.2f" , "Total Charged Today: $" , allTotalOwed);
        System.out.println();
    }

    //Displays the goodbye message
    public static void displayGoodbye() {

        System.out.println();
        System.out.println("----Program Terminating----");
        System.out.println("          Goodbye!");
        System.out.println();
    }
}