#include <iostream>
#include <iomanip>
#include <string>
#include <cctype>
#include <cstring>
using namespace std;

const char empty = '*';
const char filled = 'X';

void populate(char seats[][6]);
void outputSeating(char seats[][6]);
void getTicket(char seats[][6]);

int main()
{
    // array declaration
	char seats[13][6];

	// Populate array
	populate(seats);

	// Display initial (empty) seating
	outputSeating(seats);

	// Get user input for seating / ticket assignment
	getTicket(seats);

	return 0;
}

/* Populates seat array with empty seats for initial output */

void populate(char seats[][6])
{
	// populate array with empty seats
	for (int r = 0; r < 13; r++)
		for (int c = 0; c < 6; c++)
			seats[r][c] = empty;
}

/* Shows seating chart to the user with updated seating information */

void outputSeating(char seats[][6])
{
	// Output array
	cout << endl;
	for (int r = 0; r < 13; r++)
	{
		if (r == 0)
		{
			for (int c = 0; c < 6; c++)
			{
				if (c == 0)
					cout << "Isle \t";
				// Make room for Stewardess to serve drinks
				if (c == 3)
					cout << "\t " << static_cast<char>(c+65) << " ";
				else
					cout << " " << static_cast<char>(c+65) << " ";
			}

			cout << endl;
		}

		// Show user row #1 -- seats[0][c]
		cout << "Row " << r+1 << "\t";
		
		for (int c = 0; c < 6; c++)
		{
			// Make room for Stewardess to serve drinks
			if (c == 2)
				cout << " " << seats[r][c] << "\t";
			else
				cout << " " << seats[r][c] << " ";
		}
		
		cout << endl;
	}

}
/*	Processes customers ticket based on seating type, whether or not they're a smoker, and
	allows them to select which seat they'd like to sit in, so long as it's not already taken */

void getTicket(char seats[][6])
{
	bool done = false;
                
	do
	{	
        	// Local variable declaration -- No meaning outside of this function
                char seatType = ' ', isle = ' ', smoker = ' ';
                int row = 0;
                char quit = ' ';
                
		// determine ticket type
                do {
                        cout << "\nAre you a [F]irst class or [e]conomy passenger? [F/E]: ";
			cin >> seatType;
		} while ((toupper(seatType) != 'E') && (toupper(seatType) != 'F'));
			
		switch (toupper(seatType))
		{
			// Economy class ticket
			case 'E':
				cout << "Would you to be seated in the smoking section? [Y/N]: ";
				cin >> smoker;
				// Customer wants to sit in smoking section
				if (toupper(smoker) == 'Y')
				{
					cout << "Smoking seats for economy class tickets are rows 8 through 13.\n";
					cout << "\nWhere would you like to sit?";
					do {
                                                cin.clear();
                                                cin.ignore(100, '\n');
                                		cout << "\nEnter row number: " ;
                                		cin >> row;
					} while((row <= 0) || (row > 13));
	                                do {
                                                cin.clear();
                                                cin.ignore(100, '\n');     
                	                        cout << "\nEnter isle letter: ";
                        	                cin >> isle;
					} while(isle == ' ');
					// Ensure seat is empty
					if (seats[row -1][static_cast<int>(toupper(isle) - 65)] == empty)
					{
						// Ensure seat request within valid range based on ticket type
						if (row < 8 || row > 13)
						{
							cout << "Invalid seat selection!\n";
							cout << "Smoking seats for economy class tickets are rows 8 through 13!\n";
							break;
						}
						// Process seat request, label as filled for future customers
						else
							for (int r = 7; r < 14; r++)
								for (int c = 0; c < 6; c++)
									seats[row - 1][static_cast<int>(toupper(isle) - 65)] = filled;
					}
				}
				// Customer wants to sit in NON-smoking section
				else
				{
					cout << "Non-smoking seating for economy class tickets are rows 3 through 7.\n";
					cout << "\nWhere would you like to sit?";
					do {
						cin.clear();
                                		cin.ignore(100, '\n');
	                                  	cout << "\nEnter row number: " ;
						cin >> row;
					} while((row <= 0) || (row > 13));
                        	        do {
                                                cin.clear();
                                                cin.ignore(100, '\n');     
                                	        cout << "\nEnter isle letter: ";
	                                        cin >> isle;
        	                        } while(isle == ' ');
					// Ensure seat is empty
					if (seats[row -1][static_cast<int>(toupper(isle) - 65)] == empty)
					{
						// Ensure seat range is avlid
						if (row < 3 || row > 7)
						{
							cout << "Invalid seat selection!\n";
							cout << "Non smoking seats for economy class tickets are rows 3 through 7!\n";
							break;
						}
						// Process seat request, label as filled for future customers
						else
							for (int r = 2; r < 7; r++)
								for (int c = 0; c < 6; c++)
									seats[row - 1][static_cast<int>(toupper(isle) - 65)] = filled;
					}
					// Seat must be filled, inform user to make a different selection
					else
					{
						cout << "Seat is currently filled! Please refere to the seating chart!\n";
						break;
					}
				}
				break;
			// First class ticket
			case 'F':
				cout << "\nWhere would you like to sit?";
                                do {
                                        cin.clear();
                                        cin.ignore(100, '\n');
                                  	cout << "\nEnter row number: " ;
					cin >> row;
				} while((row <= 0) || (row > 13));
                                do {
                                        cin.clear();
                                        cin.ignore(100, '\n');     
                                        cout << "\nEnter isle letter: ";
                                        cin >> isle;
                                } while(isle == ' ');
                                
				if (seats[row - 1][static_cast<int>(toupper(isle) - 65)] == empty)
				{
					// Ensure seat request within valid range based on ticket type
					if (row > 2)
					{
						cout << "First class seats are the first two rows!\n";
						break;
					}
					// Process seat request, label as filled for future customers
					else
						for (int r = 0; r < 2; r++)
							for (int c = 0; c < 6; c++)
								seats[row - 1][static_cast<int>(toupper(isle) - 65)] = filled;
					
				}
				// Seat must be filled, inform user to make a different selection
				else
				{
					cout << "Seat is currently filled! Please refer to the seating chart!\n";
					break;
				}
				break;
			// Invalid ticket type
			default:
				cout << "No such ticket type as \" " << seatType << " \"!\n";
				break;
		}

		// Output updated seating chart now that customer has made a selection
		outputSeating(seats);
		
		// Determine whether customer would like to quit the program
		do {
                        cin.clear();
                        cin.ignore(100, '\n');
                        cout << "\nWould you like to quit? [Y/N]: ";
                        cin >> quit;
                } while ((toupper(quit) != 'Y') && (toupper(quit) != 'N'));
		if (toupper(quit) == 'Y')
			done = true;
                cin.clear();
                cin.ignore(100, '\n'); // Chop off any leftover input
                        
	} while (!done);

}