package org.asoware.budget.conv;

import java.io.File;
import java.io.FileFilter;
import java.io.FileInputStream;
import java.io.FilenameFilter;
import java.io.IOException;
import java.text.ParseException;
import java.text.SimpleDateFormat;

import org.apache.commons.io.filefilter.WildcardFilter;
import org.apache.commons.logging.Log;
import org.apache.commons.logging.LogFactory;
import org.apache.poi.hssf.usermodel.HSSFSheet;
import org.apache.poi.hssf.usermodel.HSSFWorkbook;
import org.apache.poi.poifs.filesystem.POIFSFileSystem;

public class Converter {
	private static Log log = LogFactory.getLog(Converter.class);

	public Converter() {

	}

	public void process(File location, String fileFilter) throws IOException {
		if (!location.exists()) {
			log.warn("Directory '" + location.getAbsolutePath()
					+ "' does not exist");
		}
		if (location.isDirectory()) {
			FileFilter filter = new WildcardFilter(fileFilter);
			File[] fileNames = location.listFiles(filter);
			for (File fileName : fileNames) {
				File file = new File(location, fileName.getName());
				process(file);
			}
		} else {
			process(location);
		}
		log.debug("Finished processing '" + location.getAbsolutePath() + " ("
				+ fileFilter + ")' ");
	}
	
	public void process(File file) throws IOException {
		log.debug("Start processing '" + file.getAbsolutePath() + "'");
		WorkbookProcessor processor = new WorkbookProcessor(file);
		processor.process();
		log.debug("Finished processing '" + file.getAbsolutePath() + "'");		
	}

	public static void main(String[] args) {
		File location = null;
		String fileFilter = "*.xls";
		if (args.length == 0) {
			location = new File(System.getProperty("user.dir"));
		}
		if (args.length >= 1) {
			location = new File(args[0]);
		}
		if (args.length >= 2) {
			fileFilter = args[1];
		}
		Converter converter = new Converter();
		try {
			converter.process(location, fileFilter);			
		} catch (Exception e) {
			log.error("Processing error: " + e.getMessage(), e);
		}

	}
}