/*
 Examples of reading and writing a single object to a text file
 using a class that has methods to convert to and from text
 */
package Files;

import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.PrintWriter;
import java.util.Scanner;
import java.util.logging.Level;
import java.util.logging.Logger;

/**
 *
 * @author achapin
 */
public class ReadWriteCat {

    // open a box to release the cat, let it grow, then put it back in the box
    // reads from and writes to a text file
    public static void main(String[] args) {

        Cat foreverCat = null;

        // attempt to read in text info about a cat from a file
        // representing forever cat stored in the box
        try {
            // get access to the file
            Scanner inFile = new Scanner(
                    new BufferedReader(
                            new FileReader(
                                    new File("CatBox.csv"))));

            // read in line from file
            String fileLine = inFile.nextLine();

            // try to convert line to Cat
            foreverCat = Cat.fromCSV(fileLine);

            // don't forget to close the file!!
            inFile.close();
        } catch (FileNotFoundException ex) {
            // things that go wrong are all part of this cat-based experiment
            System.out.println("Are you sure you actually put a cat in this box?")
        }

        // if there was no file or it was bad format or Schrodinger interfered, 
        if (foreverCat == null) {
            System.out.println("the forever cat was lost in the abyss, but is ever reborn");
            foreverCat = new Cat();   
        }
        
        // update info about the cat
        System.out.println("I give you, the forever cat: " + foreverCat);
        foreverCat.setAge(foreverCat.getAge() + (int)(Math.random() * 10));
        foreverCat.setWeight(foreverCat.getWeight() + (Math.random() * 10));
        System.out.println("Living among us, the forever cat has become: " + foreverCat);
        
        // store text information about a cat in a file
        // representing trying to store the cat in a box for later
        try {
            // set up to write to the file
            PrintWriter outFile
                    = new PrintWriter(
                            new BufferedWriter(
                                    new FileWriter(
                                            new File("CatBox.csv"))));
            

            // random chance of bad thing happening
            if (Math.random() < .9) {

                // turn the cat into CSV format String and write that to the file
                String catString = foreverCat.toCSV();
                outFile.println(catString);

            } else {
                outFile.println("SCHRODINGER YOU BASTARD!!!");
            }

            // close the file!!
            outFile.close();
        } catch (IOException ex) {
            // things that go wrong are all part of this cat-based experiment
            System.out.println("The cat wouldn't go in the box; what can you do?")
        }

    }
}