/*
 * Created on 09.08.2003
 *
 */
package net.sourceforge.phpdt.internal.ui.util;

import net.sourceforge.phpeclipse.ui.IPreferenceConstants;
import net.sourceforge.phpeclipse.ui.overlaypages.Util;

import org.eclipse.core.resources.IFile;

/**
 * @author khartlage
 *
 */
public class PHPFileUtil {
  public final static String[] PHP_EXTENSIONS = {
      "php",
      "php3",
      "php4",
      "php5",
      "phtml",
      "module",  // drupal
      "inc",
      "class"
  };
//  public final static String[] HTML_EXTENSIONS = {
//      "html",
//      "htm",
//      "xhtml"
//  };
  public final static String[] SMARTY_EXTENSIONS = {
      "tpl"
  };
  
  public  static boolean isPHPFile(IFile file) {
    String extension = file.getFileExtension();
    return isPHPFileName(file.getLocation().toString());
  }

  public final static String getFileExtension(String name) {
	int index = name.lastIndexOf('.');
	if (index == -1)
		return null;
	if (index == (name.length() - 1))
		return null; //$NON-NLS-1$
	return name.substring(index + 1);
}
  
  /**
   * Returns true iff str.toLowerCase().endsWith(".php")
   * implementation is not creating extra strings.
   */
  public final static boolean isPHPFileName(String name) {
    String extension = getFileExtension(name);
    if (extension==null) {
      return false;
    }
    extension = extension.toLowerCase();
    for (int i=0;i<PHP_EXTENSIONS.length;i++) {
      if (extension.equals(PHP_EXTENSIONS[i])) {
        return true;
      }
    }
    return false;
  }
    
  /**
   * Returns true iff str.toLowerCase().endsWith(".html")
   * implementation is not creating extra strings.
   */
//  public final static boolean isHTML_FileName(String name) {
//    String extension = getFileExtension(name);
//    if (extension==null) {
//      return false;
//    }
//  extension = extension.toLowerCase();
//    for (int i=0;i<HTML_EXTENSIONS.length;i++) {
//      if (extension.equals(HTML_EXTENSIONS[i])) {
//        return true;
//      }
//    }
//    return false;
//  }
  
  /**
   * Returns true iff str.toLowerCase().endsWith(".tpl")
   * implementation is not creating extra strings.
   */
//  public final static boolean isTPL_FileName(String name) {
//    String extension = getFileExtension(name);
//    if (extension==null) {
//      return false;
//    }
//  extension = extension.toLowerCase();
//    for (int i=0;i<SMARTY_EXTENSIONS.length;i++) {
//      if (extension.equals(SMARTY_EXTENSIONS[i])) {
//        return true;
//      }
//    }
//    return false;
//  }
  
  /**
	 * Returns true iff the file extension is a valid PHP Unit name
	 * implementation is not creating extra strings.
	 */
	public final static boolean isValidPHPUnitName(String filename) {
		return PHPFileUtil.isPHPFileName(filename);
//		||
//		       PHPFileUtil.isHTML_FileName(filename) ||
//			   PHPFileUtil.isTPL_FileName(filename);
	}
}