package de.superx.servlet;

import static org.junit.Assert.assertEquals;

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.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.apache.poi.EncryptedDocumentException;
import org.apache.poi.openxml4j.exceptions.InvalidFormatException;
import org.apache.poi.ss.usermodel.DataFormatter;
import org.apache.poi.ss.usermodel.Row;
import org.apache.poi.ss.usermodel.Sheet;
import org.apache.poi.ss.usermodel.Workbook;
import org.apache.poi.ss.usermodel.WorkbookFactory;
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 ExecuteMaskExcelTest extends BaseDbTest {

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

		String[] params = { "-tid:16000", "-out:" + outputFilename, "-user:admin",
				"-params:Köpfe oder Fälle ?=KoF_2&Stichtag=1&stylesheet=tabelle_xls.xsl&contenttype=application/vnd.openxmlformats-officedocument.spreadsheetml.sheet",
				"-logger:" + logConfigPath,
				};

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

		validateXLSFile();

	}

	private static void validateXLSFile() throws IOException, EncryptedDocumentException, InvalidFormatException  {
		Assert.assertTrue("'" + outputFilename + " does not exist", outputFile.exists());
		Assert.assertTrue("'" + outputFilename + " 0 Bytes", outputFile.length()>0);
		Workbook workbook = WorkbookFactory.create(outputFile);
		Sheet sheet = workbook.getSheetAt(0);
        DataFormatter dataFormatter = new DataFormatter();
        Row firstRow = sheet.getRow(0);
        String cellValue = dataFormatter.formatCellValue(firstRow.getCell(0));
        assertEquals("Cell content", "Studierende nach erstem Fach-/Hochschulsemester (Zeitreihe)", cellValue);
	}

	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;
	}
}