package at.asitplus.eidas.specific.connector.test.task;

import java.io.UnsupportedEncodingException;
import java.util.Locale;

import org.apache.commons.lang3.RandomStringUtils;
import org.junit.Assert;
import org.junit.Before;
import org.junit.BeforeClass;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.context.i18n.LocaleContextHolder;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.test.context.ContextConfiguration;
import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
import org.springframework.test.context.web.WebAppConfiguration;
import org.springframework.web.context.request.RequestContextHolder;
import org.springframework.web.context.request.ServletRequestAttributes;

import at.asitplus.eidas.specific.connector.processes.tasks.GenerateCountrySelectionFrameTask;
import at.gv.egiz.eaaf.core.exceptions.TaskExecutionException;
import at.gv.egiz.eaaf.core.impl.idp.module.test.TestRequestImpl;
import at.gv.egiz.eaaf.core.impl.idp.process.ExecutionContextImpl;

@RunWith(SpringJUnit4ClassRunner.class)
@ContextConfiguration({
    "/applicationContext.xml",
    "/specific_eIDAS_connector.beans.xml",
    "/eaaf_core.beans.xml",
    "/eaaf_pvp.beans.xml",
    "/eaaf_pvp_idp.beans.xml",
    "/spring/SpringTest-context_simple_storage.xml" })
@WebAppConfiguration
public class GenerateCountrySelectionFrameTaskTest {

  @Autowired private GenerateCountrySelectionFrameTask task;
  
  private ExecutionContextImpl executionContext = new ExecutionContextImpl();
  private TestRequestImpl pendingReq;
  private MockHttpServletRequest httpReq;
  private MockHttpServletResponse httpResp;
  
  /**
   * jUnit class initializer.
   * 
   */
  @BeforeClass
  public static void classInitializer() {
    final String current = new java.io.File(".").toURI().toString();
    System.setProperty("eidas.ms.configuration", current + "../basicConfig/default_config.properties");
    
  }
  
  /**
   * jUnit test set-up.
   * 
   */
  @Before
  public void initialize() {
    httpReq = new MockHttpServletRequest("POST", "https://localhost/ms_connector");
    httpResp = new MockHttpServletResponse();
    RequestContextHolder.resetRequestAttributes();
    RequestContextHolder.setRequestAttributes(new ServletRequestAttributes(httpReq, httpResp));
    
    pendingReq = new TestRequestImpl();
    pendingReq.setAuthUrl("https://localhost/ms_connector");
    pendingReq.setPendingReqId(RandomStringUtils.randomAlphanumeric(10));
    
    LocaleContextHolder.resetLocaleContext();
  }
  
  @Test
  public void validHtmlResponseWithOutLocale() throws TaskExecutionException, UnsupportedEncodingException {    
    
    task.execute(pendingReq, executionContext);
    
    //result validation
    String html = doBasicValidation();
    
    Assert.assertTrue("No english text", 
        html.contains("Information on Logins with European eIDs"));
    
  }
  
  @Test
  public void validHtmlResponseWithDE() throws TaskExecutionException, UnsupportedEncodingException {    
    LocaleContextHolder.setLocale(Locale.GERMAN);
    httpReq.addHeader("Accept-Language", "de");
    
    task.execute(pendingReq, executionContext);
    
    //result validation
    String html = doBasicValidation();
    
    Assert.assertTrue("No english text", 
        html.contains("Information zur Anmeldung über Europäische eIDs"));
    
  }
  
  @Test
  public void validHtmlResponseWithEN() throws TaskExecutionException, UnsupportedEncodingException {    
    LocaleContextHolder.setLocale(Locale.ENGLISH);
    
    task.execute(pendingReq, executionContext);
    
    //result validation
    String html = doBasicValidation();
    
    Assert.assertTrue("No english text", 
        html.contains("Information on Logins with European eIDs"));
    
  }
  
  @Test
  public void validHtmlResponseWithFR() throws TaskExecutionException, UnsupportedEncodingException {    
    LocaleContextHolder.setLocale(Locale.FRANCE);
    httpReq.addHeader("Accept-Language", "fr");
    
    task.execute(pendingReq, executionContext);
    
    //result validation
    String html = doBasicValidation();
    
    Assert.assertTrue("No english text", 
        html.contains("Information on Logins with European eIDs"));
    
  }
  
  private String doBasicValidation() throws UnsupportedEncodingException {
    Assert.assertEquals("Wrong http StatusCode", 200, httpResp.getStatus());
    Assert.assertEquals("Wrong http ContentType", "text/html;charset=UTF-8", httpResp.getContentType());
    
    String html = httpResp.getContentAsString();
    Assert.assertNotNull("html result is null", html);
    Assert.assertFalse("html result is empty", html.isEmpty());    
    Assert.assertTrue("No language selector with pendingRequestId", 
        html.contains("/myHomeCountry?pendingid=" + pendingReq.getPendingRequestId()));
    Assert.assertTrue("No country-selection form", 
        html.contains("<form class=\"block\" method=\"post\" action=\"/myHomeCountry\">"));
        
    return html;
    
  }
}