import java.io.BufferedReader;
import java.io.BufferedWriter;
import java.io.File;
import java.io.FileReader;
import java.io.FileWriter;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.ArrayList;

/**
 * Project #2
 * CS 2334, Section 010
 * 2/27/2015
 * <P>
 * This is the driver class, it contains methods that interact with the Date and Person class
 * as well as reads and writes from text files and runs the UserInterface class.
 * </P>
 * @version 1.0
 */
public class Driver {

	private static ArrayList<Place> place = new ArrayList<Place>();
	private static ArrayList<Person> people = new ArrayList<Person>();
	public static String fileName;

	/**
	 * Reads lines from file and copies them into an ArrayList
	 * @throws IOException To keep the compiler from complaining
	 */
	public static void readFile() throws IOException
	{
		FileReader fr = new FileReader(fileName);
		BufferedReader br = new BufferedReader(fr);
		String nextline = br.readLine();

		//Loop fills ArrayList with values from file
		while (nextline != null) {

			String[] lineSplit = nextline.split(",");//splits each line by the commas
			String[] nameSplit = lineSplit[0].split(" ");

			if(!Character.isDigit(lineSplit[1].charAt(0)))
			{
				lineSplit[3] = lineSplit[2];
				lineSplit[2] = lineSplit[1];
				lineSplit[1] = ("00/00/0000");
			}

			String middleNames = null;

			for(int i = 1; i < nameSplit.length -1; i++)
			{
				middleNames = (nameSplit[i] + " ");
			}
			if(middleNames == null)
			{
				middleNames = "";
			}

			String[] firstMiddleLast = {nameSplit[0], middleNames, nameSplit[nameSplit.length -1]};

			Person person;

			if(lineSplit.length == 5){
				person = new Person(firstMiddleLast, lineSplit[1],lineSplit[2],lineSplit[3],lineSplit[4]);

				//place
				addPlace(lineSplit,nextline);


			}else{
				person = new Person(firstMiddleLast, lineSplit[1],lineSplit[2],lineSplit[3],"Alive");

				//place
				addPlace(lineSplit,nextline);


			}
			people.add(person);


			//Goes to next line
			nextline = br.readLine();
		}
		br.close();
	}

	/**
	 * Writes a given string to an output file. Asks the user first.
	 * @param text - Text to be written to output file
	 * @param inputReader - input reader to read from the keyboard
	 * @throws IOException - Keeps eclipse happy
	 */
	public static void writeFile(String text, BufferedReader inputReader) throws IOException{
		while(true){
			System.out.println("Save or skip?");
			String saveOrSkipAns = inputReader.readLine();

			if(saveOrSkipAns.equalsIgnoreCase("save"))
			{
				FileWriter outfile = new FileWriter("output.txt");
				BufferedWriter bw = new BufferedWriter(outfile);
				bw.write(text);
				bw.close();
				break;
			}else if(saveOrSkipAns.equalsIgnoreCase("skip"))
			{break;}

			}

	}

	/**
	 * Adds a Place object to the place ArrayList
	 * @param tokens - A line from the data file split into an array of strings
	 * @param line - A line from the data file in a string
	 */
	public static void addPlace(String[] tokens, String line)
	{
         if(tokens.length==4)
         {
                 //START HERE
                 if(!place.isEmpty())
                 {
                         //does this place exist?

                         int x = -1;
                         //loop through all places and do manual check for place name
                         for(int i=0; i<place.size(); i++)
                         {
                                 Place lugar = place.get(i);
                                 if(lugar.getState().equals(tokens[3]))
                                 {
                                         x = i;
                                         break;
                                 }
                         }
                         if(x>=0)
                         {
                                 //it does exist, add the city and state to that place
                                 Place lugar = place.get(x);
                                 lugar.addCity(tokens[2]);
                                 lugar.addPeople(line);
                         }
                         else
                         {
                                 place.add(new Place(tokens[2],tokens[3],line));
                         }


                 }
                 else
                 {

                         place.add(new Place(tokens[2],tokens[3],line));
                 }
         }
	}

	/**
	 * Main method of the program, everything runs from here.
	 * @param args - Aarrgs
	 * @throws IOException - throw to keep eclipse happy
	 */
	public static void main(String [] args) throws IOException
	{

		BufferedReader inputReader = new BufferedReader(
				new InputStreamReader( System.in ) );


		boolean boo = true;
		while(boo){

			System.out.println("Please enter a valid filename");
			String file = inputReader.readLine();

			if (new File(file).exists())
			{

				Driver.fileName = file;
				boo = false;
			}
		}

		//call readFile
		readFile();


		boolean cont = true;
		while(cont){

			UserInterface.initialQuestions(inputReader,people,place);

			boolean go = true;
			while(go){
				System.out.println("Continue or Exit?");
				String contOrExitAns = inputReader.readLine();

				if(contOrExitAns.equalsIgnoreCase("exit"))
				{
					System.out.println("Thank you for using PeoplAce");
					go = false;
					cont = false;
				}else if(contOrExitAns.equalsIgnoreCase("continue")){
					go = false;
					cont = true;
				}
			}
		}
	}
}