package com.atlassian.webdriver.browsers.ie;
   
   import com.atlassian.browsers.BrowserConfig;
   import org.openqa.selenium.ie.InternetExplorerDriver;
   import org.openqa.selenium.ie.InternetExplorerDriverService;
   import org.slf4j.Logger;
   import org.slf4j.LoggerFactory;
   
   import javax.annotation.Nullable;
  import java.io.File;
  
  /**
   *
   */
  public final class IeBrowser
  {
      private static final Logger log = LoggerFactory.getLogger(IeBrowser.class);
  
      public static final String IE_SERVICE_EXECUTABLE = "IEDriverServer.exe";
  
      private IeBrowser()
      {
          throw new AssertionError("Don't instantiate me");
      }
  
      public static InternetExplorerDriver createIeDriver(@Nullable String browserPath, @Nullable BrowserConfig config)
      {
          if (noBrowserPath(browserPath) && noServicePath(config))
          {
              return createDefaultDriver();
          }
          else
          {
              final InternetExplorerDriverService service = setBrowserExecutablePath(browserPath,
                      setServiceExecutablePath(config, new InternetExplorerDriverService.Builder()))
                      .usingAnyFreePort()
                      .build();
              return new InternetExplorerDriver(service);
          }
      }
  
      public static InternetExplorerDriver createDefaultDriver()
      {
          return new InternetExplorerDriver();
      }
  
      private static boolean noBrowserPath(@Nullable String browserPath)
      {
          return browserPath == null;
      }
  
      private static boolean hasServicePath(@Nullable BrowserConfig config)
          {
              return config != null && config.getProfilePath() != null;
          }
  
      private static boolean noServicePath(@Nullable BrowserConfig config)
      {
          return !hasServicePath(config);
      }
  
      private static InternetExplorerDriverService.Builder setServiceExecutablePath(BrowserConfig browserConfig, InternetExplorerDriverService.Builder builder)
      {
          if (hasServicePath(browserConfig))
          {
              File profilePath = new File(browserConfig.getProfilePath());
              File ieDriverFile = new File(profilePath, IE_SERVICE_EXECUTABLE);
              if (ieDriverFile.isFile())
              {
                  builder.usingDriverExecutable(ieDriverFile);
              }
          }
          return builder;
      }
  
      private static InternetExplorerDriverService.Builder setBrowserExecutablePath(String browserPath, InternetExplorerDriverService.Builder builder)
          {
              if (browserPath != null)
              {
                  // can't do much here, IE driver knows better where to look for IE
                  log.warn("Non-null browser path configured for IE: '{}', but IEDriver does not support custom browser paths");
              }
              return builder;
          }
  
  }