/**

 * This program reads Strings from an ascii file and creates a TheDataBase object for the data.

 */

import java.io.File;

import java.io.FileNotFoundException;

import java.util.Scanner;

import java.util.ArrayList;



public class FileIO {

    

  /** Read Strings from the file.  Assumes the ascii file as the following structure:

    *          animal name 1 (e.g. Spot)

    *          animal type 1 (e.g. dog)

    *          animal name 2 

    * *        animal type 2 

    *           etc

    * @param filename the name of the ascii file name

    * @return TheDataBase object containing all of the information in the file.

    */

  public static TheDataBase readFile(String filename)  {

    TheDataBase db = new TheDataBase();

    

    try {

      File inputFile = new File(filename);

      Scanner in = new Scanner(inputFile);

     

      while(in.hasNextLine())

      {     

        String animalName = in.nextLine().trim(); // read name

        Animal a = new Animal(animalName);

        

        String typeName = in.nextLine().trim();  // read type

        Type t = new Type(typeName);

        

        a = db.addAnimal(a);  // if name already in list, returns the one in list

        t = db.addType(t);   // if type already in list, returns the one in list

        

        a.setType(t);        // set the type for this animal

        t.addAnimal(a);      // adds this animal name to the list of animals of this type

        

      }

    } catch (FileNotFoundException e) {

      System.out.println("File not found.");

    }   

    

    return db;

  }

  

 

}