package org.bib.jeffrey;

import static org.junit.Assert.*;

import java.awt.image.BufferedImage;
import java.io.File;
import java.util.List;

import org.apache.commons.collections4.CollectionUtils;
import org.apache.commons.lang3.StringUtils;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.junit.Test;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.core.env.Environment;

public class TiffServiceTest extends BaseTest {
// Constructors

// Public Methods
	public TiffServiceTest() {
	}
	
// Main Method to Test
	@Test
	public void testToMultiPageTiff() {
		/*
		 * None, CCITT RLE, CCITT T.4, CCITT T.6, LZW, JPEG, ZLib, PackBits, Deflate  
		 */
		final String compressionType = "LZW";
		
		/*
		 * Where to write the multipage tiff - change outputDir to path of your choosing if you don't want to use user.home
		 */
		String outputDir = env.getProperty("user.home");
		assertFalse(StringUtils.isBlank(outputDir));
		
		String fileName = "bib-multipage-" + compressionType + ".tif";
		
		final File outputFile = new File(outputDir, fileName);
		
		/*
		 * Execute the main logic to combine tiffs to a single multi page tiff, then write the result to the target file
		 */
		tiffService.toMultiPageTiff(IMAGE_PATH, outputFile, compressionType);
	}
	
// Component Methods
	@Test
	public void testLoadImages() {
		List<BufferedImage> imageList = tiffService.loadImages(IMAGE_PATH);
		
		assertFalse(CollectionUtils.isEmpty(imageList));
	}	
	
	@Test
	public void testCreateMultiPageTiff() {
		List<BufferedImage> imageList = tiffService.loadImages(IMAGE_PATH);
		
		byte[] tiffBytes = tiffService.createMultiPageTiff(imageList, "None");
		
		assertNotNull(tiffBytes);
		assertTrue(tiffBytes.length > 0);
	}
	
// Getters & Setters

// Attributes
	/**
	 * Logger
	 */
	private static final Logger logger = LogManager.getLogger(TiffServiceTest.class);

	/**
	 * Environment
	 */
	@Autowired
	private Environment env;
	
	/**
	 * Tiff service under test
	 */
	@Autowired
	private TiffService tiffService;
	
	/**
	 * Image pattern path
	 */
	private static final String IMAGE_PATH = "classpath:/img/*.tif";
	
}