package Lect42Review;

// Idea: This program is used to organize people in tables of a restaurant.
// Each table is represented by an instance of the Table class.
// The collection of tables is represented by a two-dimensional array
// of Table objects.  Each array row represents a section of the restaurant
// and a row number corresponds to a section number.  For simplicity
// section and table numbers start at 0.  Each section can have a diffrent
// number of tables.
// 
// Reviews: two-dimensional arrays of objects, ArrayList, Composition,
//           break/label, iterator
public class TableSeatingChart {
	private Table[][] tables;
	private int maxPeoplePerTable;
	
	public TableSeatingChart(int maxPeoplePerTable) {
		tables = new Table[0][];
		this.maxPeoplePerTable = maxPeoplePerTable;
	}
	
	public int addSection(int numberOfTables) {		
		// Expand the number of sections by creating new
		// array of references to Table objects and copying
		// over references to previous sections
		int origNumSections = tables.length;
		Table[][] newTables = new Table[origNumSections + 1][];
		for (int sectionNum=0; sectionNum<origNumSections; sectionNum++) {
			newTables[sectionNum] = tables[sectionNum];
		}
		
		// Add the section by creating row of tables
		newTables[origNumSections] = new Table[numberOfTables];
		
		// Create the tables for the section
		for (int tableNum=0; tableNum<numberOfTables; tableNum++) {
			newTables[origNumSections][tableNum] = new Table(maxPeoplePerTable);
		}
		
		tables = newTables;
		int sectionNumber = origNumSections;
		
		return sectionNumber;
	}
	
	public void printSection(int sectionNum) {
		int numberOfPeople;
		String[] people;
		
		if (sectionNum < tables.length) {
			System.out.print("Sec[" + sectionNum + "]: ");
			for (int col=0; col<tables[sectionNum].length; col++) {
				numberOfPeople = tables[sectionNum][col].getNumberOfPeople();
				people = tables[sectionNum][col].getPeople();
				System.out.print("Table[" + col + "]:{");
				for (int i=0; i<numberOfPeople; i++) {
					if (i != 0) {
						System.out.print(",");
					}
					System.out.print(people[i]);
				}
				System.out.print("}  ");
			}
			System.out.println();
		}
	}
	
	public void printChart() {
		for (int row=0; row<tables.length; row++) {
			printSection(row);
		}
		System.out.println();
	}
	
	// Section and table numbers will start at zero for simplicity
	public void addPerson(int sectionNum, int tableNum, String name) {
		tables[sectionNum][tableNum].addPerson(name);
	}
	
	// Notice use of label and break
	public void removePerson(String name) {
		outerTableLoop:			
			for (int row=0; row<tables.length; row++) {
				for (int col=0; col<tables[row].length; col++) {
					if (tables[row][col].hasPerson(name)) {
						tables[row][col].removePerson(name);
						break outerTableLoop; 
					}
				}
			}
	}
	
	public static void main(String[] args) {
		int maxPersonsPerTable = 3;
		TableSeatingChart chart = new TableSeatingChart(maxPersonsPerTable);
		
		// Create some sections
		int numberOfTables = 4;
		int firstSection = chart.addSection(numberOfTables);		
		int secondSection = chart.addSection(numberOfTables - 1);
		int thirdSection = chart.addSection(numberOfTables + 1);
		
		// Add some people to the sections
		// char.addPerson(sectionNum, tableNum, "name"
		chart.addPerson(firstSection, 0, "John");
		chart.addPerson(thirdSection, 2, "Mary");
		chart.addPerson(thirdSection, 3, "Rose");
		chart.addPerson(thirdSection, 3, "Laura");
		chart.printChart();
		
		// Remove 
		System.out.println("AFTER REMOVING");
		chart.removePerson("Laura");
		chart.printChart();
	}
}