package Files;

// a cat that knows how to turn itself into CSV
public class Cat {

    private String name;
    private int age;
    private double weight;
    private boolean hungry;

    public Cat() {
        setName("Kitty");
        setAge(0);
        setWeight(1);
        setHungry(true);
    }

    public Cat(String name, int age, double weight) {
        this();
        setName(name);
        setAge(age);
        setWeight(weight);
    }

    public Cat(Cat original) {
        this();
        if (original != null) {
            setName(original.getName());
            setAge(original.getAge());
            setWeight(original.getWeight());
            // skip hungry
        }
    }

    public String getName() {
        return name;
    }

    public void setName(String name) {
        if (name != null) {
            this.name = name;
        }
    }

    public int getAge() {
        return age;
    }

    public void setAge(int age) {
        if (age >= 0) {
            this.age = age;
        }
    }

    public double getWeight() {
        return weight;
    }

    public void setWeight(double weight) {
        if (weight >= 0) {
            this.weight = weight;
        }
    }

    public boolean getHungry() {
        return hungry;
    }

    public void setHungry(boolean hungry) {
        this.hungry = hungry;
    }

    public Cat clone() {
        return new Cat(this);
    }

    public boolean equals(Object other) {
        if (other != null && other instanceof Cat) {
            Cat cTemp = (Cat) other;
            // ignore hungry
            return getName().equals(cTemp.getName())
                    && getAge() == cTemp.getAge()
                    && getWeight() == cTemp.getWeight();
        }
        return false;
    }

    public String toString() {
        return "cat named " + getName() + " (" + getAge() + "yo, " + getWeight() + "lbs)";
    }

    // make comma separated representation of a Cat
    public String toCSV() {
        // in keeping with equals and copy, not preserving hungry value for long term
        return getName() + "," + getAge() + "," + getWeight();
    }

    // turn comma separated data into a cat
    // method marked static, but didn't have to be
    public static Cat fromCSV(String line) {
        Cat result = null;
        // can't do anything with no data
        if (line != null) {
            // split the line at the commas, creating an array
            String[] elements = line.split(",");
            // only try to make a cat if there are the right number of elements
            if (elements.length == 3) {
                try {
                    // name is already a String
                    String newName = elements[0];
                    // convert String to int
                    int newAge = Integer.parseInt(elements[1]);
                    // convert String to double
                    double newWeight = Double.parseDouble(elements[2]);
                    // by our powers combined: a kitty
                    result = new Cat(newName, newAge, newWeight);
                // if they didn't give an int and a double in their strings
                // they don't get a cat, choosing not to complain about it
                } catch (NumberFormatException e) {
                    // just silently seething about bad data
                }
            }
        }
        return result;
    }
}