package Lect42Review;

public class DigitalCamera extends Camera implements Battery {
	private static final int DEFAULT_MEMORY = 100;
	private static final int DEFAULT_MEMORY_PER_PHOTO = 1;
	
	private int totalMegs, megsPerPhoto, availableMegs;
	
	public DigitalCamera() {
		this(DEFAULT_MEMORY, DEFAULT_MEMORY_PER_PHOTO);
	}
	
	public DigitalCamera(int theTotalMegs, int theMegsPerPhoto) {
		totalMegs = theTotalMegs;
		maxPhotos = totalMegs/theMegsPerPhoto;
		availableShots = maxPhotos;
		megsPerPhoto = theMegsPerPhoto;
		availableMegs = totalMegs;
		remainingPower = 500.0;
	}
	
	public void takePicture() {
		if ((availableShots > 0) && (remainingPower >= 1.0)) {
			System.out.println("Taking digital picture");
			availableShots--;
			availableMegs -= megsPerPhoto;
			remainingPower -= 1.0; 
		}
	}
	
	public void displayPhoto(int number) {
		System.out.println("Displaying digital photo num " + number);
		remainingPower -= 2.0;
	}
	
	public String toString() {
		String result = "";
		
		result += super.toString() + "\n";
		result += "TotalMegs: " + totalMegs + "\n";
		result += "MegsPerPhoto: " + megsPerPhoto + "\n";
		result += "Available Megs: " + availableMegs;
		return result;
	}

	// Interface methods	
	public String getBatteryType() {
		return "AA";
	}
	
	public double getRemainingPower() {
		return remainingPower;
	}
}