package de.superx.servlet;

import java.awt.image.RenderedImage;
import java.io.File;
import java.io.IOException;
import java.util.ArrayList;
import java.util.List;

import org.apache.pdfbox.cos.COSName;
import org.apache.pdfbox.pdmodel.PDDocument;
import org.apache.pdfbox.pdmodel.PDPage;
import org.apache.pdfbox.pdmodel.PDResources;
import org.apache.pdfbox.pdmodel.graphics.PDXObject;
import org.apache.pdfbox.pdmodel.graphics.form.PDFormXObject;
import org.apache.pdfbox.pdmodel.graphics.image.PDImageXObject;
import org.junit.Assert;
import org.junit.BeforeClass;
import org.junit.Test;
import org.springframework.test.context.ContextConfiguration;

import de.superx.BaseDbTest;
import de.superx.TestApplicationConfigPg;
import de.superx.bin.ExecuteMask;
import de.superx.sec.InputCheckRegistry;

//@ContextConfiguration(classes = { TestApplicationConfigPg.class })
public class ExecuteMaskPDFTest extends BaseDbTest {

    private static String outputFilename;
    private static File outputFile;

	@BeforeClass
	public static void setup()
	{
		 outputFilename=String.join(File.separator, "test", "output_16000.pdf");
		 InputCheckRegistry.registerDefaultChecks();
	        if (outputFilename != null) {
	            outputFile = new File(outputFilename);
	            if (outputFile.exists()) {
	                outputFile.delete();
	            }
	        }
	}
	
		@Test
	public void testPDF() throws Exception
			 {

		String[] params = { "-tid:16000", "-out:" + outputFilename, "-user:admin",
				"-params:Köpfe oder Fälle ?=KoF_2&Stichtag=1&stylesheet=tabelle_fo_pdf.xsl&contenttype=application/pdf",
				"-logger:" + logConfigPath,
				"-fopxconf:"+SuperXManager.getWEB_INFPfad()+File.separator+"conf/fop.xconf"
				};

		ExecuteMask.setMandantenID(MANDANTEN_ID);
		ExecuteMask.setMyWEBINFFilePath(SuperXManager.getWEB_INFPfad());
		ExecuteMask.execute(params);

		validatePDFFile();

	}

	private static void validatePDFFile() throws IOException  {
		Assert.assertTrue("'" + outputFilename + " does not exist", outputFile.exists());
		Assert.assertTrue("'" + outputFilename + " 0 Bytes", outputFile.length()>0);
		 PDDocument document =PDDocument.load(outputFile);
		
		 List<RenderedImage> images = new ArrayList<>();
		 for (PDPage page : document.getPages()) {
		        images.addAll(getImagesFromResources(page.getResources()));
		    }
		 document.close();
			Assert.assertTrue("'" + outputFilename + " scheint kein Logo zu enthalten", images.size()>0);
			
	}
	private static List<RenderedImage> getImagesFromResources(PDResources resources) throws IOException {
	    List<RenderedImage> images = new ArrayList<>();

	    for (COSName xObjectName : resources.getXObjectNames()) {
	        PDXObject xObject = resources.getXObject(xObjectName);

	        if (xObject instanceof PDFormXObject) {
	            images.addAll(getImagesFromResources(((PDFormXObject) xObject).getResources()));
	        } else if (xObject instanceof PDImageXObject) {
	            images.add(((PDImageXObject) xObject).getImage());
	        }
	    }

	    return images;
	}
}