Fix part of oppia#5344: Add classroom label to stories on view all sc…

…reen (oppia#5502)

<!-- READ ME FIRST: Please fill in the explanation section below and
check off every point from the Essential Checklist! -->
## Explanation
<!--
- Explain what your PR does. If this PR fixes an existing bug, please
include
- "Fixes #bugnum:" in the explanation so that GitHub can auto-close the
issue
  - when this PR is merged.
  -->

Fixes part of oppia#5344

This PR adds classroom label to the promoted stories on view all screen.

## Screenshots
|Light Mode|Dark Mode|
|--|--|

|![image](https://github.com/user-attachments/assets/c97cbdf7-4e2a-43bf-a3f4-d57c0c53811f)|![image](https://github.com/user-attachments/assets/caff0087-cf33-4de3-ad74-44fa375f4f7c)|

## Essential Checklist
<!-- Please tick the relevant boxes by putting an "x" in them. -->
- [x] The PR title and explanation each start with "Fix #bugnum: " (If
this PR fixes part of an issue, prefix the title with "Fix part of
#bugnum: ...".)
- [x] Any changes to
[scripts/assets](https://github.com/oppia/oppia-android/tree/develop/scripts/assets)
files have their rationale included in the PR explanation.
- [x] The PR follows the [style
guide](https://github.com/oppia/oppia-android/wiki/Coding-style-guide).
- [x] The PR does not contain any unnecessary code changes from Android
Studio
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#undo-unnecessary-changes)).
- [x] The PR is made from a branch that's **not** called "develop" and
is up-to-date with "develop".
- [x] The PR is **assigned** to the appropriate reviewers
([reference](https://github.com/oppia/oppia-android/wiki/Guidance-on-submitting-a-PR#clarification-regarding-assignees-and-reviewers-section)).

## For UI-specific PRs only
<!-- Delete these section if this PR does not include UI-related
changes. -->
If your PR includes UI-related changes, then:
- Add screenshots for portrait/landscape for both a tablet & phone of
the before & after UI changes
- For the screenshots above, include both English and pseudo-localized
(RTL) screenshots (see [RTL
guide](https://github.com/oppia/oppia-android/wiki/RTL-Guidelines))
- Add a video showing the full UX flow with a screen reader enabled (see
[accessibility
guide](https://github.com/oppia/oppia-android/wiki/Accessibility-A11y-Guide))
- For PRs introducing new UI elements or color changes, both light and
dark mode screenshots must be included
- Add a screenshot demonstrating that you ran affected Espresso tests
locally & that they're passing

app/src/main/java/org/oppia/android/app/home/recentlyplayed/PromotedStoryViewModel.kt

@@ -18,6 +18,7 @@ class PromotedStoryViewModel(
   private val promotedStoryClickListener: PromotedStoryClickListener,
   private val position: Int,
   private val resourceHandler: AppLanguageResourceHandler,
+  val showClassroomLabel: Boolean,
   translationController: TranslationController
 ) : RecentlyPlayedItemViewModel() {
   /** Sets the story title of the recently played story. */
@@ -38,6 +39,12 @@ class PromotedStoryViewModel(
       promotedStory.nextChapterTitle, promotedStory.nextChapterWrittenTranslationContext
     )
   }
+  /** Sets the classroom of the recently played story. */
+  val classroomTitle by lazy {
+    translationController.extractString(
+      promotedStory.classroomTitle, promotedStory.classroomWrittenTranslationContext
+    )
+  }
 
   /**
    * Starts [ResumeLessonActivity] if a saved exploration is selected or [ExplorationActivity] if an

app/src/main/java/org/oppia/android/app/home/recentlyplayed/RecentlyPlayedViewModel.kt

@@ -13,6 +13,8 @@ import org.oppia.android.domain.translation.TranslationController
 import org.oppia.android.util.data.AsyncResult
 import org.oppia.android.util.data.DataProviders.Companion.toLiveData
 import org.oppia.android.util.parser.html.StoryHtmlParserEntityType
+import org.oppia.android.util.platformparameter.EnableMultipleClassrooms
+import org.oppia.android.util.platformparameter.PlatformParameterValue
 import javax.inject.Inject
 
 /** View model for [RecentlyPlayedFragment]. */
@@ -22,6 +24,7 @@ class RecentlyPlayedViewModel private constructor(
   @StoryHtmlParserEntityType private val entityType: String,
   private val resourceHandler: AppLanguageResourceHandler,
   private val translationController: TranslationController,
+  private val enableMultipleClassrooms: PlatformParameterValue<Boolean>,
   private val promotedStoryClickListener: PromotedStoryClickListener,
   private val profileId: ProfileId,
 ) {
@@ -33,6 +36,8 @@ class RecentlyPlayedViewModel private constructor(
     @StoryHtmlParserEntityType private val entityType: String,
     private val resourceHandler: AppLanguageResourceHandler,
     private val translationController: TranslationController,
+    @EnableMultipleClassrooms
+    private val enableMultipleClassrooms: PlatformParameterValue<Boolean>,
   ) {
 
     /** Creates an instance of [RecentlyPlayedViewModel]. */
@@ -46,6 +51,7 @@ class RecentlyPlayedViewModel private constructor(
         entityType,
         resourceHandler,
         translationController,
+        enableMultipleClassrooms,
         promotedStoryClickListener,
         profileId,
       )
@@ -166,6 +172,7 @@ class RecentlyPlayedViewModel private constructor(
       promotedStoryClickListener,
       index,
       resourceHandler,
+      enableMultipleClassrooms.value,
       translationController
     )
   }

app/src/main/res/drawable/classroom_label_text_background.xml

@@ -0,0 +1,12 @@
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+  android:shape="rectangle">
+  <corners android:radius="50dp" />
+  <stroke
+    android:width="2dp"
+    android:color="@color/component_color_classroom_promoted_list_classroom_label_color" />
+  <padding
+    android:left="16dp"
+    android:right="16dp"
+    android:top="8dp"
+    android:bottom="8dp" />
+</shape>

app/src/main/res/layout/recently_played_story_card.xml

@@ -86,10 +86,29 @@
           android:text="@{viewModel.topicTitle}"
           android:textAllCaps="true"
           android:textColor="@color/component_color_shared_story_card_topic_name_text_color"
-          app:layout_constraintBottom_toBottomOf="parent"
+          app:layout_constraintBottom_toTopOf="@id/classroom_name_text_view"
           app:layout_constraintEnd_toEndOf="parent"
           app:layout_constraintStart_toStartOf="parent"
           app:layout_constraintTop_toBottomOf="@id/story_name_text_view" />
+
+        <TextView
+          android:id="@+id/classroom_name_text_view"
+          style="@style/CaptionViewStart"
+          android:layout_width="wrap_content"
+          android:layout_marginStart="8dp"
+          android:layout_marginEnd="8dp"
+          android:layout_marginBottom="12dp"
+          android:ellipsize="end"
+          android:fontFamily="sans-serif-light"
+          android:maxLines="1"
+          android:text="@{viewModel.classroomTitle}"
+          android:textAllCaps="true"
+          android:textColor="@color/component_color_classroom_promoted_list_classroom_label_color"
+          android:background="@drawable/classroom_label_text_background"
+          android:visibility="@{viewModel.showClassroomLabel ? View.VISIBLE : View.GONE}"
+          app:layout_constraintBottom_toBottomOf="parent"
+          app:layout_constraintStart_toStartOf="parent"
+          app:layout_constraintTop_toBottomOf="@id/topic_name_text_view" />
       </androidx.constraintlayout.widget.ConstraintLayout>
     </androidx.constraintlayout.widget.ConstraintLayout>
   </com.google.android.material.card.MaterialCardView>

app/src/sharedTest/java/org/oppia/android/app/home/RecentlyPlayedFragmentTest.kt

@@ -97,7 +97,6 @@ import org.oppia.android.domain.oppialogger.analytics.ApplicationLifecycleModule
 import org.oppia.android.domain.oppialogger.analytics.CpuPerformanceSnapshotterModule
 import org.oppia.android.domain.oppialogger.logscheduler.MetricLogSchedulerModule
 import org.oppia.android.domain.oppialogger.loguploader.LogReportWorkerModule
-import org.oppia.android.domain.platformparameter.PlatformParameterModule
 import org.oppia.android.domain.platformparameter.PlatformParameterSingletonModule
 import org.oppia.android.domain.question.QuestionModule
 import org.oppia.android.domain.topic.FRACTIONS_EXPLORATION_ID_0
@@ -111,6 +110,7 @@ import org.oppia.android.testing.firebase.TestAuthenticationModule
 import org.oppia.android.testing.junit.InitializeDefaultLocaleRule
 import org.oppia.android.testing.lightweightcheckpointing.ExplorationCheckpointTestHelper
 import org.oppia.android.testing.lightweightcheckpointing.FRACTIONS_STORY_0_EXPLORATION_0_CURRENT_VERSION
+import org.oppia.android.testing.platformparameter.TestPlatformParameterModule
 import org.oppia.android.testing.profile.ProfileTestHelper
 import org.oppia.android.testing.robolectric.RobolectricModule
 import org.oppia.android.testing.story.StoryProgressTestHelper
@@ -457,6 +457,66 @@ class RecentlyPlayedFragmentTest {
     }
   }
 
+  @Test
+  fun testRecentlyPlayedTestActivity_disableClassrooms_recommendedSection_classroomNameIsNotDisplayed() { // ktlint-disable max-line-length
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(false)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          3
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 3,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(matches(not(isDisplayed())))
+    }
+  }
+
+  @Test
+  fun testRecentlyPlayedTestActivity_enableClassrooms_recommendedSection_classroomNameIsCorrect() {
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(true)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          3
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 3,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(
+        matches(withText(containsString("MATHS")))
+      )
+    }
+  }
+
   @Config(qualifiers = "port")
   @Test
   fun testRecentlyPlayedTestActivity_recentlyPlayedItemInRtl_rtlMarginIsCorrect() {
@@ -774,6 +834,74 @@ class RecentlyPlayedFragmentTest {
     }
   }
 
+  @Test
+  fun testRecentlyPlayedTestActivity_disableClassrooms_classroomNameIsNotDisplayed() {
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(false)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    storyProgressTestHelper.markInProgressSavedRatiosStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = true
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          1
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 1,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(matches(not(isDisplayed())))
+    }
+  }
+
+  @Test
+  fun testRecentlyPlayedTestActivity_enableClassrooms_classroomNameIsCorrect() {
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(true)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    storyProgressTestHelper.markInProgressSavedRatiosStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = true
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          1
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 1,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(
+        matches(withText(containsString("MATHS")))
+      )
+    }
+  }
+
   @Test
   fun testRecentlyPlayedTestActivity_lessonThumbnailIsCorrect() {
     fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
@@ -1256,6 +1384,76 @@ class RecentlyPlayedFragmentTest {
     }
   }
 
+  @Test
+  fun testRecentlyPlayedTestActivity_disableClassrooms_configChange_classroomNameIsNotDisplayed() {
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(false)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    storyProgressTestHelper.markInProgressSavedRatiosStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = true
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(isRoot()).perform(orientationLandscape())
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          1
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 1,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(matches(not(isDisplayed())))
+    }
+  }
+
+  @Test
+  fun testRecentlyPlayedTestActivity_enableClassrooms_configChange_classroomNameIsCorrect() {
+    TestPlatformParameterModule.forceEnableMultipleClassrooms(true)
+    fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
+    storyProgressTestHelper.markInProgressSavedFractionsStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = false
+    )
+    storyProgressTestHelper.markInProgressSavedRatiosStory0Exp0(
+      profileId = profileId,
+      timestampOlderThanOneWeek = true
+    )
+    ActivityScenario.launch<RecentlyPlayedActivity>(
+      createRecentlyPlayedActivityIntent(
+        internalProfileId = internalProfileId
+      )
+    ).use {
+      testCoroutineDispatchers.runCurrent()
+      onView(isRoot()).perform(orientationLandscape())
+      onView(withId(R.id.ongoing_story_recycler_view)).perform(
+        scrollToPosition<RecyclerView.ViewHolder>(
+          1
+        )
+      )
+      onView(
+        atPositionOnView(
+          recyclerViewId = R.id.ongoing_story_recycler_view,
+          position = 1,
+          targetViewId = R.id.classroom_name_text_view
+        )
+      ).check(
+        matches(withText(containsString("MATHS")))
+      )
+    }
+  }
+
   @Test
   fun testRecentlyPlayedTestActivity_configChange_lessonThumbnailIsCorrect() {
     fakeOppiaClock.setFakeTimeMode(FakeOppiaClock.FakeTimeMode.MODE_UPTIME_MILLIS)
@@ -1464,7 +1662,7 @@ class RecentlyPlayedFragmentTest {
   @Component(
     modules = [
       RobolectricModule::class,
-      PlatformParameterModule::class, PlatformParameterSingletonModule::class,
+      TestPlatformParameterModule::class, PlatformParameterSingletonModule::class,
       TestDispatcherModule::class, ApplicationModule::class,
       LoggerModule::class, ContinueModule::class, FractionInputModule::class,
       ItemSelectionInputModule::class, MultipleChoiceInputModule::class,