/*
    * Copyright 2005-2013 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 edu.samplu.common;
  
  import com.thoughtworks.selenium.SeleneseTestBase;
  import org.junit.After;
  import org.junit.AfterClass;
  import org.junit.Before;
  import org.junit.BeforeClass;
  import org.openqa.selenium.Alert;
  import org.openqa.selenium.By;
  import org.openqa.selenium.JavascriptExecutor;
  import org.openqa.selenium.WebDriver;
  import org.openqa.selenium.chrome.ChromeDriverService;
  
  import java.util.ArrayList;
  import java.util.List;
  import java.util.Set;
  import java.util.concurrent.TimeUnit;
  
  import static com.thoughtworks.selenium.SeleneseTestBase.fail;
  import static org.junit.Assert.assertEquals;
  
  /**
   * Base class for Selenium Webdriver integration tests
   *
   * @author Kuali Rice Team (rice.collab@kuali.org)
   */
  public abstract class WebDriverITBase {
  
      public WebDriver driver;
      static ChromeDriverService chromeDriverService;
  
      /**
       * Returns the URL to be used with this test
       *
       * @return URL of the test
       */
      public abstract String getTestUrl();
  
      /**
       * Override in test to define a user other than admin
       * @return
       */
      public String getUserName() {
          return "admin";
      }
  
      @BeforeClass
      public static void createAndStartService() throws Exception {
          chromeDriverService = WebDriverUtil.chromeDriverCreateCheck();
          if (chromeDriverService != null) chromeDriverService.start();
      }
  
  
      /**
       * Setup the WebDriver test, login and load the tested web page
       *
       * @throws Exception
       */
      @Before
      public void setUp() throws Exception {
          driver = WebDriverUtil.setUp(getUserName(), ITUtil.getBaseUrlString() + "/" + getTestUrl());
          WebDriverUtil.login(driver, getUserName(), new Failable() {
              @Override
              public void fail(String message) {
                  SeleneseTestBase.fail(message);
              }
          });
      }
  
      /**
       * Tear down the WebDriver test
       *
       * @throws Exception
       */
      @After
      public void tearDown() throws Exception {
          if (ITUtil.dontTearDownPropertyNotSet()) {
              driver.quit(); // TODO not tested with chrome, the service stop might need this check too
          }
      }
  
      /**
       * Tear down the WebDriver test
      *
      * @throws Exception
      */
     @AfterClass
     public static void stopService() throws Exception {
         if (chromeDriverService != null) {
             chromeDriverService.stop();
         }
     }
 
     /**
      * Check if an element is present
      *
      * <p>
      * This test takes a while due to the 'implicit wait' time.
      * </p>
      *
      * @param by The locating mechanism of the element
      * @return true if the element is present, false otherwise
      */
     public boolean isElementPresent(By by) {
         if (driver.findElements(by).isEmpty()) {
             return false;
         } else {
             return true;
         }
     }
 
     /**
      * Quickly check if an element is present
      *
      * <p>
      * Just like {@link #isElementPresent(org.openqa.selenium.By)} but with a short 'implicit wait' time.  Use this only
      * if it is guaranteed that all elements are rendered.
      * </p>
      *
      * @param by The locating mechanism of the element
      * @return true if the element is present, false otherwise
      */
     public boolean isElementPresentQuick(By by) {
         driver.manage().timeouts().implicitlyWait(WebDriverUtil.SHORT_IMPLICIT_WAIT_TIME, TimeUnit.SECONDS);
         boolean result = isElementPresent(by);
         driver.manage().timeouts().implicitlyWait(WebDriverUtil.DEFAULT_IMPLICIT_WAIT_TIME, TimeUnit.SECONDS);
         return result;
     }
 
     /**
      * Assert that clicking an element causes a popup window with a specific URL
      *
      * @param by The locating mechanism of the element to be clicked
      * @param windowName The name of the popup window
      * @param url The URL of the popup window
      */
     public void assertPopUpWindowUrl(By by, String windowName, String url) {
         driver.findElement(by).click();
         String parentWindowHandle = driver.getWindowHandle();
         // wait page to be loaded
         driver.switchTo().window(windowName).findElements(By.tagName("head"));
         assertEquals(url, driver.getCurrentUrl());
         driver.switchTo().window(parentWindowHandle);
     }
     
     /**
      * 
      *
      * @param by The locating mechanism of the element
     */
     protected void waitFor(By by) throws InterruptedException {
         waitFor(by, "");
     }
 
     /**
      * 
      *
      * @param by The locating mechanism of the element
      * @param message User defined message to display
      */
     protected void waitFor(By by, String message) throws InterruptedException {
 //        for (int second = 0;; second++) {
             Thread.sleep(1000);
 //            if (second >= DEFAULT_WAIT_SEC) fail(by.toString() + " " + message + " " + DEFAULT_WAIT_SEC + " sec timeout.");
             try { driver.findElement(by);
                 //break;
             } catch (Exception e) {}
 //        }
     }
 
     /**
      * 
      *
      * @param by The locating mechanism of the element
      * @param text The text to type
     */
     protected void waitAndType(By by, String text) throws InterruptedException {
         waitFor(by, "");
         try {
             (driver.findElement(by)).sendKeys(text);
         } catch (Exception e) {
             fail(e.getMessage() + " " + by.toString() + " " + text);
             e.printStackTrace();
         }
     }
     
     /**
      * 
      *
      * @param by The locating mechanism of the element
      * @param text The text to type
      * @param message User defined message to display
     */
     protected void waitAndType(By by, String text, String message) throws InterruptedException {
         waitFor(by, "");
         try {
             (driver.findElement(by)).sendKeys(text);
         } catch (Exception e) {
             fail(e.getMessage() + " " + by.toString() + " " + text + "  "+message);
             e.printStackTrace();
         }
     }
     
     /**
      * 
      *
      * @param locator The locating mechanism of the element
      * @param text The text to type
     */
     protected void waitAndTypeByXpath(String locator, String text) throws InterruptedException {
         waitAndType(By.xpath(locator), text);
     }
     
     /**
      * 
      *
      * @param locator The locating mechanism of the element
      * @param text The text to type
      * @param message User defined message to display
     */
     protected void waitAndTypeByXpath(String locator, String text, String message) throws InterruptedException {
         waitAndType(By.xpath(locator), text, message);
     }
     
     /**
      * 
      *
      * @param name The name of the element
      * @param text The text to type
     */
     protected void waitAndTypeByName(String name, String text) throws InterruptedException {
         waitAndType(By.name(name), text);
     }
     
     /**
      * Clear the text written in an input field by name of an element
      *
      * @param name The name of the element
     */
     protected void clearTextByName(String name) throws InterruptedException {
         clearText(By.name(name));
     }
     
     /**
      * Clear the text written in an input field by xpath of an element
      *
      * @param locator The locating mechanism of the element
     */
     protected void clearTextByXpath(String locator) throws InterruptedException {
         clearText(By.xpath(locator));
     }
     
     /**
      * Clear the text written in an input field by xpath of an element
      *
      * @param by method used for finding the element
     */
     protected void clearText(By by)  throws InterruptedException {
         driver.findElement(by).clear();        
     }
     
     /**
      * Dismiss the javascript alert (clicking Cancel)
      *
     */
     protected void dismissAlert()
     {
         Alert alert = driver.switchTo().alert();
         //update is executed
         alert.dismiss();
     }
     
     /**
      * Accept the javascript alert (clicking OK)
      *
     */
     protected void acceptAlert()
     {
         Alert alert = driver.switchTo().alert();
         //update is executed
         alert.accept();
     }
     
     protected String getEval(String script)
     {
         JavascriptExecutor js = (JavascriptExecutor) driver;
         return (String)js.executeScript(script);
     }
     
     /**
      * Switch to new window
      *
     */
     protected void switchWindow()
     {
         Set<String> winSet = driver.getWindowHandles();
         List<String> winList = new ArrayList<String>(winSet);
         String newTab = winList.get(winList.size() - 1);
         driver.switchTo().window(newTab);
     }
     
     /**
      * Get value of any attribute by using element name
      *
      *@param name name of an element
      *@param attribute the name of an attribute whose value is to be retrieved
     */
     protected String getAttributeByName(String name,String attribute) throws InterruptedException {
         return getAttribute(By.name(name),attribute);
     }
     
     /**
      * Get value of any attribute by using element xpath
      *
      *@param locator locating mechanism of an element
      *@param attribute the name of an attribute whose value is to be retrieved
     */
     protected String getAttributeByXpath(String locator,String attribute) throws InterruptedException {
         return getAttribute(By.xpath(locator),attribute);
     }
     
     /**
      * Get value of any attribute of an element
      *
      * @param by method used for finding the element
      *@param attribute the name of an attribute whose value is to be retrieved
     */
     protected String getAttribute(By by,String attribute)  throws InterruptedException {
         return driver.findElement(by).getAttribute(attribute);        
     }
     
     /**
      * 
      *
      * @param text text of the link
     */
     protected void waitAndClickByLinkText(String text) throws InterruptedException {
         waitAndClick(By.linkText(text),"");
     }
 
     /**
      * 
      *
      * @param text text of the link
      * @param message user defined message to display
     */
     protected void waitAndClickByLinkText(String text, String message) throws InterruptedException {
         waitAndClick(By.linkText(text), message);
     }
     
     /**
      * 
      *
      * @param by method used for finding the element
     */
     protected void waitAndClick(By by) throws InterruptedException {
         waitAndClick(by, "");
     }
 
     /**
      * 
      *
      * @param by method used for finding the element
      * @param message user defined message to display
     */
     protected void waitAndClick(By by, String message) throws InterruptedException {
         waitFor(by, message);
         try {
             (driver.findElement(by)).click();
         } catch (Exception e) {
             fail(e.getMessage() + " " + by.toString() + " " + message);
             e.printStackTrace();
         }
     }
     
     /**
      * 
      *
      * @param locator mechanism to locate element by xpath
     */
     protected void waitAndClick(String locator) throws InterruptedException {
         waitAndClick(locator, "");
     }
     
     /**
      * 
      *
      * @param locator mechanism to locate element by xpath
      * @param message user defined message to display
     */
     protected void waitAndClick(String locator, String message) throws InterruptedException {
         waitAndClick(By.cssSelector(locator), message);
     }
 
     /**
      * 
      *
      * @param locator mechanism to locate element by xpath
     */
     protected void waitForElementPresent(String locator) throws InterruptedException {
         waitFor(By.cssSelector(locator));
     }
 
     /**
      * 
      *
      * @param locator mechanism to locate element by xpath
     */    
     protected void waitForElementPresentByXpath(String locator) throws InterruptedException {
         waitFor(By.xpath(locator));
     }
     
     /**
      * 
      *
      * @param name name of an element
     */ 
     protected void waitForElementPresentByName(String name) throws InterruptedException {
         waitFor(By.name(name));
     }
     
     protected void checkForIncidentReport(Failable failable) {
         checkForIncidentReport("", failable, "");
     }
 
     protected void checkForIncidentReport(String locator, Failable failable) {
         checkForIncidentReport(locator, failable, "");
     }
     
     protected void checkForIncidentReport(String locator, Failable failable, String message) {
         ITUtil.checkForIncidentReport(driver.getPageSource(), locator, failable, message);
     }
 
 
 }