package homework;

import java.awt.Color;
import java.io.*;

import com.lowagie.text.*;
import com.lowagie.text.pdf.*;

public class GeneratePDF {
    public static void main(String[] args) throws IOException, DocumentException {
        char[] suits = new char[] {
                '\u2660', '\u2665', '\u2666', '\u2663'
        };
        String[] ranks = new String[] {
            "2", "3", "4", "5", "6", "7", "8",
            "9", "10", "J", "Q", "K", "A"
        };

        File file = new File("deck.pdf");
        Document pdf = new Document();
        PdfWriter writer = PdfWriter.getInstance(pdf, new FileOutputStream(file));
        pdf.open();
        PdfContentByte cb = writer.getDirectContent();
        BaseFont baseFont = BaseFont.createFont("DejaVuSansMono.ttf", BaseFont.IDENTITY_H, BaseFont.EMBEDDED);
        Font font = new Font(baseFont, 16);
        float fontSize = font.getCalculatedSize();
        float offset = fontSize / 2F;

        float width = fontSize * 2F;
        float height = fontSize * 3F;
        float lowerLeftX = offset;
        float topRightY = pdf.getPageSize().getTop() - offset;

        for (String rank : ranks) {
            for (int i = 0; i < suits.length; ++i) {
                font.setColor((i == 0 || i == suits.length - 1) ? Color.BLACK : Color.RED);

                DrawCardInRect(new Rectangle(lowerLeftX, topRightY - height, lowerLeftX + width, topRightY),
                        rank, suits[i], cb, font);

                    lowerLeftX += width  + offset;
            }
            topRightY -= height + offset;
            lowerLeftX = offset;

        }

        pdf.close();
    }

    private static void DrawCardInRect(Rectangle rect, String rank, char suit, PdfContentByte cb, Font font) {
        String text = rank + suit;
        Phrase phrase = new Phrase(text, font);
        ColumnText.showTextAligned(cb, Element.ALIGN_CENTER, phrase,
                    (rect.getLeft() + rect.getRight()) / 2,
                    rect.getBottom() + rect.getHeight() / 2 - font.getCalculatedSize() / 2,
                    0);
            cb.saveState();
            cb.setColorStroke(Color.BLACK);
            cb.rectangle(rect.getLeft(), rect.getBottom(), rect.getWidth(), rect.getHeight());
            cb.stroke();
            cb.restoreState();
    }
}