/**
 * A simple model of a dog
 * 
 * @author CSC 142
 */
public class Dog {
	// a dog is defined by its name and whether it is hungry
	// or not
	private String name;
	private boolean isHungry = true; // could assign true
	// to isHungry in the constructor
	// what the dog at previously
	private String prevFood;
	private int countFetches;

	/**
	 * Creates a hungry dog given its name
	 * 
	 * @param name
	 *            the name of the dog
	 */
	public Dog(String name) {
		this.name = name;
		// isHungry = true;
	}

	/**
	 * Feeds the dog if the dog wants to eat
	 * 
	 * @param food
	 *            the food given to the dog
	 * @return true if the dog has eaten, and false if not.
	 */
	public boolean eat(String food) {
		if (isHungry) { // the dog might eat
			// ! means not
			if (!food.equals(prevFood)) {
				System.out.println("Yummy!");
				prevFood = food;
				countFetches = 0;
				isHungry = false;
				return true;
			} else {
				System.out.println("Oh no, not the same thing again!");
				return false;
			}
		} else { // the dog doesn't eat
			System.out.println("Thank you, but I am not hungry.");
			return false;
		}
	}

	/**
	 * Plays fetch with the dog
	 */
	public boolean fetch() {
		if (!isHungry) { // the dog plays fetch
			System.out.println("I love to play fetch.");
			countFetches++; 
			// same as countFetches = countFetches + 1
			if (countFetches >= 5) {
				isHungry = true;
			}
			return true;
		} else {
			System.out.println(
					"I am too hungry to play fetch.");
			return false;
		}
	}
}