import java.io.BufferedReader;
import java.io.FileNotFoundException;
import java.io.FileReader;
import java.io.IOException;
import java.text.ParseException; 
import java.util.ArrayList;

/**
 * Hold lines from Shakespeare plays
 * @author gtowell
 * Created: Sep 28, 2020
 */
public class Shak {
    // Place where all the lines live
    ArrayList<Line> lines ;

    
    /**
     * The number of lines
     * @return
     */
    public int size() {
        return lines.size();
    }

    /**
     * Return the nth line in the store
     * @param no the line number
     * @return a line object if the line is good 
     */
    public Line getLineNo(int no) {
        if (no>0 && no < lines.size())
            return lines.get(no);
        return null;
    }

    /**
     * The first line containing the given string
     * @param lookFor the string to be found
     * @return a Line object containing the first line found to contain the string
     */
    public Line firstLineContaining(String lookFor) {
        for (Line l : lines) {
            if (l.getText().indexOf(lookFor) >= 0)
                return l;
        }
        return null;
    }

    /**
     * Create the structure and fill it from the given file
     * @param filename
     */
    public Shak(String filename) {
        super();
        lines = new ArrayList<>();
        try (BufferedReader br = new BufferedReader(new FileReader(filename));) {
            while (br.ready()) {
                try {
                    Line l = new Line(br.readLine());
                    lines.add(l);
                } catch (ParseException pe) {
                    System.err.println("Parse problem: " + pe);
                } catch (NumberFormatException ne) {
                    System.err.println(ne);
                }
            }
        } catch (FileNotFoundException fof) {
            System.err.println(fof);
        }
        catch (IOException ioe) {
            System.err.println(ioe);
        }
    }
}