/**
    * Copyright 2004-2013 The Kuali Foundation
    *
    * Licensed under the Educational Community License, Version 2.0 (the "License");
    * you may not use this file except in compliance with the License.
    * You may obtain a copy of the License at
    *
    * http://www.opensource.org/licenses/ecl2.php
    *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  package org.kuali.hr.time.test;
  
  import com.gargoylesoftware.htmlunit.WebClient;
  import com.gargoylesoftware.htmlunit.html.*;
  import org.apache.log4j.Logger;
  import org.kuali.rice.core.api.config.property.ConfigContext;
  
  import java.io.File;
  import java.io.FileOutputStream;
  import java.io.StringReader;
  import java.net.URL;
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  public class HtmlUnitUtil {
      private static final Logger LOG = Logger.getLogger(HtmlUnitUtil.class);
  
      /**
       * 
       * @param url
       * @return htmlpage without js enabled
       * @throws Exception
       */
      public static HtmlPage gotoPageAndLogin(WebClient webClient, String url) throws Exception {
      	return gotoPageAndLogin(webClient, url, false);
      }
      
      /**
       * 
       * @param url
       * @param enableJavascript
       * @return htmlpage with js enabled
       * @throws Exception
       */
      public static HtmlPage gotoPageAndLogin(WebClient webClient, String url, boolean enableJavascript) throws Exception {
      	LOG.debug("URL: " + url);
  
      	// this is required and needs to set to true, otherwise the values set by the onClick event won't be triggered, e.g. methodToCall
          webClient.setJavaScriptEnabled(enableJavascript);
      	return (HtmlPage) webClient.getPage(new URL(url));
      }
  
      public static boolean pageContainsText(HtmlPage page, String text) {
  	return page.asText().indexOf(text) >= 0;
      }
  
  	public static HtmlPage clickInputContainingText(HtmlPage page, String...values) throws Exception {
  		page = (HtmlPage)getInputContainingText(page, values).click();
  		return page;
  	}
  
      public static HtmlInput getInputContainingText(HtmlPage page, String... values) throws Exception {
  		List<HtmlForm> forms = page.getForms();
  		for (HtmlForm form : forms){
  			for(HtmlElement element : form.getHtmlElementDescendants()) {
  				if (element instanceof HtmlInput) {
  					if (elementContainsValues(element, values)) {
  						return (HtmlInput)element;
  					}
  				}
  			}
  		}
  		return null;
  	}
  
  
      public static List<HtmlInput> getInputsContainingText(HtmlPage page, String... values) throws Exception {
  		List<HtmlInput> inputs = new ArrayList<HtmlInput>();
  		List<HtmlForm> forms = page.getForms();
  		for (HtmlForm form : forms){
  
  			for(HtmlElement element : form.getHtmlElementDescendants()) {
  				if (element instanceof HtmlInput) {
  					if (elementContainsValues(element, values)) {
  						inputs.add((HtmlInput)element);
  					}
  				}
  			}
  		}
  		return inputs;
  	}
  
  	protected static boolean elementContainsValues(HtmlElement element, String... values) {
 		for (String value : values) {
 			if (element.toString().indexOf(value) == -1) {
 				return false;
 			}
         }
 		return true;
 	}
 
 	public static HtmlPage clickAnchorContainingText(HtmlPage page, String... values) throws Exception {
 		return (HtmlPage) getAnchorContainingText(page, values).click();
 	}
 
 	@SuppressWarnings("unchecked")
 	public static HtmlAnchor getAnchorContainingText(HtmlPage page, String... values) throws Exception {
 		for (Iterator iterator = page.getAnchors().iterator(); iterator.hasNext();) {
 			HtmlAnchor anchor = (HtmlAnchor) iterator.next();
 			if (elementContainsValues(anchor, values)) {
 				return anchor;
 			}
 		}
 		return null;
 	}
 
     public static String getBaseURL() {
 	    return ConfigContext.getCurrentContextConfig().getProperty("application.url");
     }
     
     public static String getContext() {
     	return "/" + ConfigContext.getCurrentContextConfig().getProperty("app.context.name");
     }
 
     public static String getTempDir() {
 	return ConfigContext.getCurrentContextConfig().getProperty("temp.dir");
     }
 
     public static Integer getPort() {
 	return new Integer(ConfigContext.getCurrentContextConfig().getProperty("kns.test.port"));
     }
 
     public static void createTempFile(HtmlPage page) throws Exception {
 	createTempFile(page, null);
     }
 
     public static void createTempFile(HtmlPage page, String name) throws Exception {
 	name = name == null ? "TestOutput" : name;
 	File temp = File.createTempFile(name, ".html", new File(HtmlUnitUtil.getTempDir()));
 	FileOutputStream fos = new FileOutputStream(temp);
 	String xml = page.asXml();
 	StringReader xmlReader = new StringReader(xml);
 	int i;
 	while ((i = xmlReader.read()) != -1) {
 	    fos.write(i);
 	}
 	try {
 	    fos.close();
 	} catch (Exception e) {
 	}
 	try {
 	    xmlReader.close();
 	} catch (Exception e) {
 	}
     }
 
     public static HtmlInput getInputContainingText(HtmlForm form, String text) throws Exception {
 
 		for (HtmlElement element : form.getHtmlElementDescendants()) {
 			if (element instanceof HtmlInput) {
 				HtmlInput i = (HtmlInput) element;
 				if (element.toString().contains(text)) {
 					return i;
 				}
 			}
 
 		}
 		return null;
     }
     
 	public static HtmlForm getDefaultForm(HtmlPage htmlPage) {
 		if (htmlPage.getForms().size() == 1) {
 			return (HtmlForm)htmlPage.getForms().get(0);
 		}
 		return (HtmlForm)htmlPage.getForms().get(1);
 	}
 
 }