import java.io.*;
import java.util.*;

public class Hotel {
	private int numOfUsedRooms;
	private Room[][] allRooms;
	private int numOfFloors;
	private int totalRooms;
	private int numOfRooms;

	public Hotel(int floors, int roomsPerFloor) {
		this.allRooms = new Room[floors][roomsPerFloor];
		this.numOfFloors = floors;
		this.numOfRooms = roomsPerFloor;
		this.numOfUsedRooms = 0;
		for (int i = 0; i < floors; i++) {
			for (int j = 0; j < roomsPerFloor; j++) {
				int numOfBeds = (int) ((Math.random() * 3) + 1);
				this.allRooms[i][j] = new Room(numOfBeds);
				this.totalRooms++;
			}
		}
	}

	public Hotel(String fileName) throws FileNotFoundException {
		File f = new File(fileName);
		Scanner sc = new Scanner(f);
		this.numOfUsedRooms = sc.nextInt();
		this.numOfFloors = sc.nextInt();
		this.numOfRooms = sc.nextInt();
		this.allRooms = new Room[this.numOfFloors][this.numOfRooms];
		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				int numOfBeds = sc.nextInt();
				this.allRooms[i][j] = new Room(numOfBeds);
				// this.allRooms[i][j].setNumOfGuests(sc.nextInt());
			}
		}
		for (int i = 0; i < this.numOfFloors; i++) {
			int roomNum = sc.nextInt();
			this.allRooms[roomNum / 100][roomNum % 10] = new Room(sc);
		}
		sc.close();

	}

	public Hotel(Scanner sc) throws FileNotFoundException {
		this.numOfUsedRooms = sc.nextInt();
		this.numOfFloors = sc.nextInt();
		this.numOfRooms = sc.nextInt();
		this.allRooms = new Room[this.numOfFloors][this.numOfRooms];
		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				int numOfBeds = sc.nextInt();
				this.allRooms[i][j] = new Room(numOfBeds);
			}
		}
		for (int i = 0; i < this.numOfUsedRooms; i++) {
			int roomNum = sc.nextInt();
			allRooms[roomNum / 100][roomNum % 100] = new Room(sc);
		}
	}

	public String guestLookUp(int passportNumber) {
		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				Room currentRoom = allRooms[i][j];
				if (currentRoom.getNumOfGuests() != 0) {
					for (int k = 0; k < currentRoom.getNumOfGuests(); k++) {
						if (currentRoom.getGuests()[k].getPassportNumber() == passportNumber) {
							return ("Guest found, resides in room: " + ((i * 100) + j) + ".");
						}
					}
				}
			}
		}
		return "Sorry, guest was not found in hotel registry.";
	}

	public void addGuestGroup(Guest[] group) {
		boolean freeRoomFound = false;
		int floor = 0;
		int freeRoom = 0;
		for (; floor < this.numOfFloors; floor++) {
			freeRoom = freeRoomFinder(floor, group.length);
			if (freeRoom != 0) {
				freeRoomFound = true;
				break;
			}
		}
		if (freeRoomFound == true) {
			for (int i = 0; i < group.length; i++) {
				this.allRooms[floor][freeRoom].addGuest(group[i]);
			}
			this.numOfUsedRooms++;
			if (floor == 0) {
				System.out.println("Guests were assigned to room: 0" + freeRoom);
			} else {
				System.out.println("Guests were assigned to room: " + ((floor * 100) + freeRoom));
			}
		} else {
			System.out.println("No free rooms were found for the guests.");
		}
	}

	public int freeRoomFinder(int floor, int numOfBedsRequired) {
		for (int i = 0; i < this.totalRooms; i++) {
			Room currentRoom = this.allRooms[floor][i];
			if ((currentRoom.getNumOfBeds() - currentRoom.getNumOfGuests()) >= numOfBedsRequired) {
				return i;
			}
		}
		return 0;
	}

	public int numOfFreeRooms(int floor) {
		int counter = 0;
		for (int i = 0; i < this.numOfRooms; i++) {
			if (this.allRooms[floor][i].getNumOfGuests() == 0) {
				counter++;
			}
		}
		return counter;
	}

	public int floorWithMaxFreeRooms() {
		int maxedFloor = 0;
		for (int i = 0; i < this.numOfFloors - 1; i++) {
			if (this.numOfFreeRooms(i) < this.numOfFreeRooms(i + 1)) {
				maxedFloor = i + 1;
			}
		}
		return maxedFloor;
	}

	public void displayStats() {
		for (int i = 0; i < this.numOfFloors; i++) {
			int counter = 0;
			System.out.println("\nFloor " + i + ".");
			for (int j = 0; j < this.numOfRooms; j++) {
				if (allRooms[i][j].getNumOfGuests() != 0) {
					System.out.println("\nRoom #" + j + ":");
					counter++;
					for (int k = 0; k < allRooms[i][j].getNumOfGuests(); k++) {
						allRooms[i][j].displayGuest(allRooms[i][j].getGuests()[k]);
					}
				}
			}
			if (counter == 0) {
				System.out.println("Floor is empty.\n");
			}
		}
	}

	public void saveHotel(PrintWriter pw) throws FileNotFoundException {
		pw.println(this.numOfUsedRooms);
		pw.println(this.numOfFloors);
		pw.println(this.numOfRooms);

		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				pw.println(this.allRooms[i][j].getNumOfBeds());
			}
		}

		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				if (this.allRooms[i][j].getNumOfGuests() != 0) {
					int num = (i * 100) + j;
					pw.println(num);
					this.allRooms[i][j].saveRoom(pw);
				}
			}
		}

		pw.close();

	}

	public void saveHotel(String fileName) throws FileNotFoundException {
		File f = new File(fileName);
		PrintWriter pw = new PrintWriter(f);
		pw.println(this.numOfUsedRooms);
		pw.println(this.numOfFloors);
		pw.println(this.numOfRooms);
		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				pw.println(this.allRooms[i][j].getNumOfBeds());
			}
		}
		for (int i = 0; i < this.numOfFloors; i++) {
			for (int j = 0; j < this.numOfRooms; j++) {
				if (allRooms[i][j].getNumOfGuests() != 0) {
					int num = (i * 100) + j;
					pw.println(num);
					allRooms[i][j].saveRoom(pw);
				}
			}
		}
		pw.close();
	}
}