import structure5.*;
import com.opencsv.CSVReader;
import java.io.FileReader;
import java.io.FileNotFoundException;
import java.io.IOException;

public class BookStats {

    public static void readBooks(String path, Set<Book> books) {
        CSVReader reader = null;
        try {
            reader = new CSVReader(new FileReader(path));
        } catch (FileNotFoundException e) {
            System.err.println("File not found: '" + path + "'");
            System.exit(1);
        }
    
        String[] row;

        try {
            while ((row = reader.readNext()) != null) {
            String isbn = row[5];
            String authors = row[7];
            String title = row[10];
            Book b = new Book(isbn, authors, title);
            books.add(b);
            }
        } catch (IOException e) {
            System.err.println("Trouble reading file!");
            System.exit(1);
        }
    }
    
    public static void readBooksWithTime(String path, Set<Book> books) {
        final long startTime = System.currentTimeMillis();
        readBooks(path, books);
        final long endTime = System.currentTimeMillis();
        System.out.println("Read " + books.size() + " records in " + (endTime - startTime) + "ms.");
    }
    
    public static void main(String[] args) {
        if (args.length != 1) {
            System.out.println("Usage: java BookStats <file.csv>");
        }

        Set<Book> books = new SetList<>();
        readBooksWithTime(args[0], books);

        Set<Book> booksh = new SetHashtable<>();
        readBooksWithTime(args[0], booksh);
    }
}