/*
CSE 142, Autumn 2007 (Marty Stepp)
This program reads a file of IMDB's Top 250 movies and
displays information about movies that match a search
string typed by the user.
*/

import java.awt.*;
import java.io.*;
import java.util.*;

public class Movies {
    public static void main(String[] args) throws FileNotFoundException {
        introduction();
        String phrase = getWord();
        Scanner input = new Scanner(new File("imdb.txt"));
        search(input, phrase);
    }
    
    // prints introductory text to the user
    public static void introduction() {
        System.out.println("This program will allow you to search the");
        System.out.println("imdb top 250 movies for a particular word.");
        System.out.println();
    }
    
    // Asks the user for their search phrase and returns it.
    public static String getWord() {
        System.out.print("Search word: ");
        Scanner console = new Scanner(System.in);
        String phrase = console.next();
        phrase = phrase.toLowerCase();
        System.out.println();
        return phrase;
    }
    
    // Breaks apart each line, looking for lines that match the search phrase.
    // Prints information about all movies that match the phrase,
    // and draws a graph of the highest-ranked movie that matches the phrase.
    //
    // example line of input:
    // 8.9   113807   The Lord of the Rings: The Return of the King (2003)
    public static void search(Scanner input, String phrase) {
        System.out.println("Rank\tVotes\tRating\tTitle");
        int matches = 0;
        Graphics g = createWindow();
        
        int rank = 0;
        while (input.hasNextLine()) {
            String line = input.nextLine();
            Scanner lineScan = new Scanner(line);
            
            rank++;
            double rating = lineScan.nextDouble();   // 8.9
            int votes = lineScan.nextInt();          // 113807
            String title = lineScan.nextLine();      // "   The Lord of ..."
            String lcTitle = title.toLowerCase();

            // try to case-insensitively match the phrase the user typed
            if (lcTitle.indexOf(phrase) >= 0) {
                matches++;
                System.out.println(rank + "\t" + votes + "\t" + rating + title);
                if (matches == 1) {
                    // only draw first match
                    drawBar(g, rating, votes, title);
                }
            }
        }
        System.out.println();
        System.out.println(matches + " matches.");
    }

    
    // Creates drawing panel and all fixed graphics (not from search results)
    public static Graphics createWindow() {
        DrawingPanel panel = new DrawingPanel(600, 130);
        Graphics g = panel.getGraphics();
        
        // draw tick marks
        for (int i = 0; i <= 10; i++) {
            // first tick mark at (20, 20); ticks 10px tall, 50px apart
            int x = 20 + i * 50;
            g.drawLine(x, 20, x, 30);
            g.drawString(i + ".0", x, 20);
        }
        
        return g;
    }

    // Draws one red bar representing a movie's votes and ranking.
    // The "matches" parameter determines the bar's y position.
    public static void drawBar(Graphics g, double rating, int votes, String title) {
        // draw red bar for movie.  bar's top-left is at (20, 70);
        // 1px tall for each 5000 votes; 50px wide for each ratings point
        int w = (int) (rating * 50);
        int h = votes / 5000;
        
        g.setColor(Color.RED);
        g.fillRect(20, 70, w, h);
        
        g.setColor(Color.BLACK);
        g.drawString(title, 20, 70);
        g.drawString(votes + " votes", 20 + w, 70);
    }
}