fix: corrects the navigation issue if the student does not pass the e…

…ntrance exam

- adds checks while rendering the next button text for status of the
entrance exam.

closes #1415

Signed-off by: Ishan Masdekar <imasdekar@disroot.org>

src/course-home/progress-tab/certificate-status/CertificateStatus.jsx

@@ -19,6 +19,10 @@ const CertificateStatus = ({ intl }) => {
     courseId,
   } = useSelector(state => state.courseHome);
 
+  const {
+    entranceExamData,
+  } = useModel('coursewareMeta', courseId);
+
   const {
     isEnrolled,
     org,
@@ -42,13 +46,16 @@ const CertificateStatus = ({ intl }) => {
     certificateAvailableDate,
   } = certificateData || {};
 
+  const entranceExamPassed = entranceExamData?.entranceExamPassed ?? null;
+
   const mode = getCourseExitMode(
     certificateData,
     hasScheduledContent,
     isEnrolled,
     userHasPassingGrade,
     null, // CourseExitPageIsActive
     canViewCertificate,
+    entranceExamPassed,
   );
 
   const eventProperties = {

src/courseware/course/course-exit/utils.js

@@ -9,6 +9,7 @@ const COURSE_EXIT_MODES = {
   celebration: 1,
   nonPassing: 2,
   inProgress: 3,
+  entranceExamFail: 4,
 };
 
 // These are taken from the edx-platform `get_cert_data` function found in lms/courseware/views/views.py
@@ -32,9 +33,14 @@ function getCourseExitMode(
   userHasPassingGrade,
   courseExitPageIsActive = null,
   canImmediatelyViewCertificate = false,
+  entranceExamPassed = null,
 ) {
   const authenticatedUser = getAuthenticatedUser();
 
+  if (entranceExamPassed === false) {
+    return COURSE_EXIT_MODES.entranceExamFail;
+  }
+
   if (courseExitPageIsActive === false || !authenticatedUser || !isEnrolled) {
     return COURSE_EXIT_MODES.disabled;
   }
@@ -73,6 +79,7 @@ function GetCourseExitNavigation(courseId, intl) {
     isEnrolled,
     userHasPassingGrade,
     courseExitPageIsActive,
+    entranceExamData: { entranceExamPassed },
   } = useModel('coursewareMeta', courseId);
   const { canViewCertificate } = useModel('courseHomeMeta', courseId);
   const exitMode = getCourseExitMode(
@@ -82,8 +89,15 @@ function GetCourseExitNavigation(courseId, intl) {
     userHasPassingGrade,
     courseExitPageIsActive,
     canViewCertificate,
+    entranceExamPassed,
   );
-  const exitActive = exitMode !== COURSE_EXIT_MODES.disabled;
+
+  // exitActive is used to enable/disable the exit i.e. next buttons.
+  // COURSE_EXIT_MODES denote the current status of the course.
+  // Available COURSE_EXIT_MODES: disabled, celebration, nonPassing, inProgress, entranceExamFail
+  // If the user fails the entrance exam,
+  // access to further course sections should not be allowed i.e. disable the next buttons.
+  const exitActive = ((exitMode !== COURSE_EXIT_MODES.disabled) && (exitMode !== COURSE_EXIT_MODES.entranceExamFail));
 
   let exitText;
   switch (exitMode) {

src/courseware/course/sequence/sequence-navigation/hooks.js

@@ -13,6 +13,7 @@ export function useSequenceNavigationMetadata(currentSequenceId, currentUnitId)
   const sequence = useModel('sequences', currentSequenceId);
   const courseId = useSelector(state => state.courseware.courseId);
   const courseStatus = useSelector(state => state.courseware.courseStatus);
+  const { entranceExamData: { entranceExamPassed } } = useModel('coursewareMeta', courseId);
   const sequenceStatus = useSelector(state => state.courseware.sequenceStatus);
 
   // If we don't know the sequence and unit yet, then assume no.
@@ -25,6 +26,16 @@ export function useSequenceNavigationMetadata(currentSequenceId, currentUnitId)
     };
   }
 
+  // if entrance exam is not passed then we should treat this as 1st and last unit
+  if (entranceExamPassed === false) {
+    return {
+      isFirstUnit: true,
+      isLastUnit: true,
+      navigationDisabledNextSequence: false,
+      navigationDisabledPrevSequence: false,
+    };
+  }
+
   const sequenceIndex = sequenceIds.indexOf(currentSequenceId);
   const unitIndex = sequence.unitIds.indexOf(currentUnitId);