/*
Program Name: Date (exception handling)
Process: ???
Function Input/Parameters: ???
Function Output/Parameters: ???
Function Output/Returned: ???
Device Input/Device: ???
Device Output/Monitor: ???
Dependencies: ???
*/

#include <cstdio>
#include <cstdlib>
#include <iostream>
#include <cstring>
#include <vector>
#include <random>
#include <algorithm>
#include <time.h>

using namespace std;

// class definitions
class InvalidDay : public exception
{
public:
    virtual const char *what() const noexcept
    {
        return "InvalidDay: Day should be between 1 and 31 (integers).";
    }
};
class InvalidMonth : public exception
{
public:
    virtual const char *what() const noexcept
    {
        return "InvalidMonth: Month should be between 1 and 12 (integers).";
    }
};

class Date
{
private:
    int month;
    int day;
    int year;
public:
    Date()
    {
        month = 1;
        day = 1;
        year = 1970;
    }
    Date(int inMonth, int inDay, int inYear)
    {
        try
        {
            if(inMonth > 1 || inMonth < 12)
            {
                month = inMonth;
            }
            else
            {
                throw InvalidMonth();
            }
        }
        catch(const InvalidMonth& e)
        {
            std::cerr << e.what() << '\n';
        }
        // next try statement
        try
        {
            if(inDay > 1 || inDay < 31)
            {
                day = inDay;
            }
            else
            {
                throw InvalidDay();
            }
        }
        catch(const InvalidDay& e)
        {
            std::cerr << e.what() << '\n';
        }
        year = inYear;
    }
    ~Date()
    {
        //
    }
    // accessor functions
    int getDay()
    {
        return day;
    }
    int getMonth()
    {
        return month;
    }
    int getYear()
    {
        return year;
    }
    // mutator functions
    void setDay(int inputDay)
    {
        try
        {
            if (inputDay > 1 || inputDay < 31)
            {
                day = inputDay;
            }
            else
            {
                throw InvalidDay();
            }
        }
        catch (const InvalidDay &e)
        {
            std::cerr << e.what() << '\n';
        }
    }
    void setMonth(int inputMonth)
    {
        try
        {
            if (inputMonth > 1 || inputMonth < 12)
            {
                month = inputMonth;
            }
            else
            {
                throw InvalidMonth();
            }
        }
        catch (const InvalidMonth &e)
        {
            std::cerr << e.what() << '\n';
        }
    }
    void setYear(int inputYear)
    {
        year = inputYear;
    }
    // date printing functions
    void printNumericalMonthDayYear()
    {
        cout << month << "/" << day << "/" << year << endl;
    }
    void printStringMonthNumericalDayYear()
    {
        switch (month)
        {
        case 1:
            cout << "January";
            break;
        case 2:
            cout << "February";
            break;
        case 3:
            cout << "March";
            break;
        case 4:
            cout << "April";
            break;
        case 5:
            cout << "May";
            break;
        case 6:
            cout << "June";
            break;
        case 7:
            cout << "July";
            break;
        case 8:
            cout << "August";
            break;
        case 9:
            cout << "September";
            break;
        case 10:
            cout << "October";
            break;
        case 11:
            cout << "November";
            break;
        case 12:
            cout << "December";
            break;

        default:
            break;
        }
        cout << " " << day << ", " << year << endl;
    }
    void printNumericalDayStringMonthYear()
    {
        cout << day << " ";
        switch (month)
        {
        case 1:
            cout << "January";
            break;
        case 2:
            cout << "February";
            break;
        case 3:
            cout << "March";
            break;
        case 4:
            cout << "April";
            break;
        case 5:
            cout << "May";
            break;
        case 6:
            cout << "June";
            break;
        case 7:
            cout << "July";
            break;
        case 8:
            cout << "August";
            break;
        case 9:
            cout << "September";
            break;
        case 10:
            cout << "October";
            break;
        case 11:
            cout << "November";
            break;
        case 12:
            cout << "December";
            break;

        default:
            break;
        }
        cout << " " << year << endl;
    }
    // shorthand print functions
    void printNMDY()
    {
        printNumericalMonthDayYear();
    }
    void printSMNDY()
    {
        printStringMonthNumericalDayYear();
    }
    void printNDSMY()
    {
        printNumericalDayStringMonthYear();
    }
};

// function prototypes

// main program
int main(int argc, char **argv)
{
    int tempDay, tempMonth, tempYear;
    Date linuxEpoch = Date();
    Date steveBirthday = Date(2, 24, 1955);
    Date christmasThisYear = Date(12, 25, 2024);
    Date emptyDate = Date(); // values will be set be accessor/mutators
    // ask the user for the values for emptyDate.
    cout << "Start date entry:" << endl;
    cout << "\tPlease enter in a month: ";
    cin >> tempDay;
    
    cout << "\tPlease enter in a day: ";
    cin >> tempMonth;
    
    cout << "\tPlease enter in a year: ";
    cin >> tempYear;
    // finish the user entry.
    cout << endl;
    
    // attempt to enter in the date into empty date.
    emptyDate.setDay(tempDay);
    emptyDate.setMonth(tempMonth);
    emptyDate.setYear(tempYear);

    // print out each date in different formats.
    cout << "Date of Linux Epoch: ";
    linuxEpoch.printNumericalDayStringMonthYear();
    cout << endl;
    
    cout << "Date of Steve Job's Birthday: ";
    steveBirthday.printNumericalMonthDayYear();
    cout << endl;

    cout << "Date of Christmas this year: ";
    christmasThisYear.printStringMonthNumericalDayYear();
    cout << endl;

    cout << "User inputted date in all formats: " << endl;
    emptyDate.printNumericalDayStringMonthYear();
    emptyDate.printNumericalMonthDayYear();
    emptyDate.printStringMonthNumericalDayYear();
    cout << endl;
    
    // return 0
    return 0;
}