package servlets.api;

import static org.junit.jupiter.api.Assertions.fail;

import dbProcs.Setter;
import jakarta.servlet.ServletException;
import java.io.IOException;
import java.sql.SQLException;
import org.apache.logging.log4j.LogManager;
import org.apache.logging.log4j.Logger;
import org.json.JSONArray;
import org.json.JSONObject;
import org.junit.jupiter.api.BeforeAll;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.springframework.mock.web.MockHttpServletRequest;
import org.springframework.mock.web.MockHttpServletResponse;
import org.springframework.mock.web.MockServletConfig;
import testUtils.TestProperties;
import utils.ModulePlan;

public class LevelsIT {

  private static String lang = "en_GB";
  private static final Logger log = LogManager.getLogger(LevelsIT.class);
  private static String applicationRoot = new String();
  private MockHttpServletRequest request;
  private MockHttpServletResponse response;

  /** Creates DB or Restores DB to Factory Defaults before running tests */
  @BeforeAll
  public static void resetDatabase() throws IOException, SQLException {
    TestProperties.setTestPropertiesFileDirectory(log);

    TestProperties.createMysqlResource();

    TestProperties.ensureSchemaReady(log);
    TestProperties.reseedTestData();
  }

  @BeforeEach
  public void setup() {
    log.debug("Setting Up Blank Request and Response");
    request = new MockHttpServletRequest();
    response = new MockHttpServletResponse();
    // Open All modules
    if (!Setter.openAllModules(applicationRoot, false)) {
      fail("Could not Mark All Modules As Open");
    }
    // Default to CTF Mode
    ModulePlan.setIncrementalFloor();
    if (!ModulePlan.isIncrementalFloor()) {
      String message = "Could not enable CTF Mode";
      log.fatal(message);
      fail(message);
    }
  }

  /**
   * Method to Simulate the interaction with the getModule servlet.
   *
   * @param moduleId The ID of the Module to Search For
   * @param csrfToken The CSRF Token of the User
   * @return The Content of the Response (Which is supposed to be the location of the module)
   * @throws ServletException
   * @throws IOException
   * @throws Exception
   */
  public String getModuleDoGet(String csrfToken) throws ServletException, IOException {

    int expectedResponseCode = 302;

    String servletName = "Levels";
    log.debug("Creating " + servletName + " Servlet Instance");
    Levels servlet = new Levels();
    servlet.init(new MockServletConfig(servletName));

    // Adding Correct CSRF Token (Token Submitted)
    request.addParameter("csrfToken", csrfToken);

    log.debug("Running doGet");
    servlet.doGet(request, response);

    if (response.getStatus() != expectedResponseCode) {
      fail(
          "GetModule Servlet Returned "
              + response.getStatus()
              + " Code. "
              + expectedResponseCode
              + " Expected");
    } else {
      log.debug("302 OK Detected");
      log.debug(
          "Servlet Successful, returning location retrieved: " + response.getContentAsString());
      return (response.getContentAsString());
    }
    return null;
  }

  @Test
  public void testCtfModeNoLevelsComplete() throws SQLException, ServletException, IOException {
    String moduleId =
        new String("0dbea4cb5811fff0527184f99bd5034ca9286f11"); // Insecure Direct Object References
    // Module Id (First Challenge)
    String userName = "ctfModeNoLevels";

    // Verify User Exists in DB
    TestProperties.verifyTestUser(log, applicationRoot, userName, userName);
    // Sign in as Normal User
    log.debug("Signing in as " + userName + " Through LoginServlet");
    TestProperties.loginDoPost(log, request, response, userName, userName, null, lang);
    log.debug("Login Servlet Complete, Getting CSRF Token");
    if (response.getCookie("token") == null) {
      fail("No CSRF Token Was Returned from Login Servlet");
    }
    String csrfToken = response.getCookie("token").getValue();
    if (csrfToken.isEmpty()) {
      String message = new String("No CSRF token returned from Login Servlet");
      log.fatal(message);
      fail(message);
    } else {
      // Add Cookies from Response to outgoing request
      request.setCookies(response.getCookies());
      String jsonString = getModuleDoGet(csrfToken);
      JSONArray theResponse = new JSONArray(jsonString);
      log.debug("Response Returned, checking mode");
      if (!theResponse.getJSONObject(0).get("levelMode").toString().equalsIgnoreCase("ctf")) {
        String message = "CTF Mode not Detected in JSON Response";
        log.debug(message);
        fail(message);
      } else {
        log.debug("Extracting Modules from JSON response");
        // Is First Object Marked as Open, and is it the Module We Expect?
        JSONArray theModules = theResponse.getJSONObject(1).getJSONArray("modules");
        JSONObject module = theModules.getJSONObject(0);
        log.debug("Inspecting First Level: " + module);
        if (!module.get("moduleId").toString().equalsIgnoreCase(moduleId)) {
          String message =
              "Received " + module.get("moduleId") + " as first module instead of " + moduleId;
          log.debug(message);
          fail(message);
        } else if (!module.getBoolean("moduleOpen")) {
          String message =
              "Module "
                  + module.get("moduleId")
                  + " returned false for moduleOpen Status when it should be true";
          log.debug(message);
          fail(message);
        } else if (module.getBoolean("moduleCompleted")) {
          String message =
              "Module "
                  + module.get("moduleId")
                  + " is marked as completed when no module should be marked as complete for this"
                  + " user";
          log.debug(message);
          fail(message);
        } else {
          // First Level is Ok
          module = theModules.getJSONObject(1);
          log.debug("Inspecting Second Level: " + module);
          if (module.getBoolean("moduleOpen")) {
            String message =
                "Module "
                    + module.get("moduleId")
                    + " returned true for moduleOpen Status when it should be false";
            log.debug(message);
            fail(message);
          } else if (module.getBoolean("moduleCompleted")) {
            String message =
                "Module "
                    + module.get("moduleId")
                    + " is marked as completed when no module should be marked as complete for this"
                    + " user";
            log.debug(message);
            fail(message);
          } else {
            log.debug("Test Complete");
          }
        }
      }
    }
  }

  @Test
  public void testCtfModeLevelComplete() throws SQLException, ServletException, IOException {
    String moduleId =
        new String("0dbea4cb5811fff0527184f99bd5034ca9286f11"); // Insecure Direct Object References
    // Module Id (First Challenge)
    String userName = "ctfModeWithLevel";

    // Verify User Exists in DB
    TestProperties.verifyTestUser(log, applicationRoot, userName, userName);
    TestProperties.completeModuleForUser(log, userName, userName, moduleId, "anything", "");
    // Sign in as Normal User
    log.debug("Signing in as " + userName + " Through LoginServlet");
    TestProperties.loginDoPost(log, request, response, userName, userName, null, lang);
    log.debug("Login Servlet Complete, Getting CSRF Token");
    if (response.getCookie("token") == null) {
      fail("No CSRF Token Was Returned from Login Servlet");
    }
    String csrfToken = response.getCookie("token").getValue();
    if (csrfToken.isEmpty()) {
      String message = new String("No CSRF token returned from Login Servlet");
      log.fatal(message);
      fail(message);
    } else {
      // Add Cookies from Response to outgoing request
      request.setCookies(response.getCookies());
      String jsonString = getModuleDoGet(csrfToken);
      JSONArray theResponse = new JSONArray(jsonString);
      log.debug("Response Returned, checking mode");
      if (!theResponse.getJSONObject(0).get("levelMode").toString().equalsIgnoreCase("ctf")) {
        String message = "CTF Mode not Detected in JSON Response";
        log.debug(message);
        fail(message);
      } else {
        log.debug("Extracting Modules from JSON response");
        // Is First Object Marked as Open, and is it the Module We Expect?
        JSONArray theModules = theResponse.getJSONObject(1).getJSONArray("modules");
        JSONObject module = theModules.getJSONObject(0);
        log.debug("Inspecting First Level: " + module);
        if (!module.get("moduleId").toString().equalsIgnoreCase(moduleId)) {
          String message =
              "Received " + module.get("moduleId") + " as first module instead of " + moduleId;
          log.debug(message);
          fail(message);
        } else if (!module.getBoolean("moduleOpen")) {
          String message =
              "Module "
                  + module.get("moduleId")
                  + " returned false for moduleOpen Status when it should be true";
          log.debug(message);
          fail(message);
        } else if (!module.getBoolean("moduleCompleted")) {
          String message =
              "Module "
                  + module.get("moduleId")
                  + " is marked as uncompleted when this module should be marked as complete for"
                  + " this user";
          log.debug(message);
          fail(message);
        } else if (!(module.getInt("scoredPoints") == 15)) // Max points for first to complete first
        // challenge
        {
          String message =
              "Expected 15 Points to be earned from completing level. Got "
                  + module.getInt("scoredPoints");
          log.debug(message);
          fail(message);
        } else if (!module.getString("medalEarned").equalsIgnoreCase("gold")) {
          String message =
              "Expected gold medal to be earned from completing level. Got "
                  + module.getInt("medalEarned");
          log.debug(message);
          fail(message);
        } else {
          // First Level is Ok
          module = theModules.getJSONObject(1);
          log.debug("Inspecting Second Level: " + module);
          if (!module.getBoolean("moduleOpen")) {
            String message =
                "Module "
                    + module.get("moduleId")
                    + " returned false for moduleOpen Status when it should be true";
            log.debug(message);
            fail(message);
          } else if (module.getBoolean("moduleCompleted")) {
            String message =
                "Module "
                    + module.get("moduleId")
                    + " is marked as completed when it should not be marked as complete for this"
                    + " user";
            log.debug(message);
            fail(message);
          } else {
            log.debug("Test Complete");
          }
        }
      }
    }
  }
}