learningpath-api: Adds madeAvailable field to learningpaths

This field updates whenever a learningpath's status has been set to
UNLISTED or PUBLISHED.

common/src/main/scala/no/ndla/common/model/domain/learningpath/LearningPath.scala

@@ -31,7 +31,8 @@ case class LearningPath(
     owner: String,
     copyright: LearningpathCopyright,
     learningsteps: Option[Seq[LearningStep]] = None,
-    message: Option[Message] = None
+    message: Option[Message] = None,
+    madeAvailable: Option[NDLADate] = None
 ) extends Content {
 
   def supportedLanguages: Seq[String] = {

learningpath-api/src/main/scala/no/ndla/learningpathapi/model/api/LearningPathV2.scala

@@ -35,7 +35,8 @@ case class LearningPathV2(
     @description("True if authenticated user may edit this learningpath") canEdit: Boolean,
     @description("The supported languages for this learningpath") supportedLanguages: Seq[String],
     @description("Visible if administrator or owner of LearningPath") ownerId: Option[String],
-    @description("Message set by administrator. Visible if administrator or owner of LearningPath") message: Option[Message]
+    @description("Message set by administrator. Visible if administrator or owner of LearningPath") message: Option[Message],
+    @description("The date when this learningpath was made available to the public.") madeAvailable: Option[NDLADate]
 )
 
 object LearningPathV2 {

learningpath-api/src/main/scala/no/ndla/learningpathapi/service/ConverterService.scala

@@ -152,7 +152,8 @@ trait ConverterService {
             lp.canEdit(userInfo),
             supportedLanguages,
             owner,
-            message
+            message,
+            lp.madeAvailable
           )
         )
       } else

learningpath-api/src/main/scala/no/ndla/learningpathapi/service/UpdateService.scala

@@ -160,10 +160,22 @@ trait UpdateService {
                 case _                          => valid.message
               }
 
-              val updatedLearningPath = learningPathRepository.update(
-                valid.copy(message = newMessage, status = status, lastUpdated = clock.now())
+              val madeAvailable = valid.madeAvailable.orElse {
+                status match {
+                  case LearningPathStatus.PUBLISHED | LearningPathStatus.UNLISTED => Some(clock.now())
+                  case _                                                          => None
+                }
+              }
+
+              val toUpdateWith = valid.copy(
+                message = newMessage,
+                status = status,
+                lastUpdated = clock.now(),
+                madeAvailable = madeAvailable
               )
 
+              val updatedLearningPath = learningPathRepository.update(toUpdateWith)
+
               updateSearchAndTaxonomy(updatedLearningPath, owner.tokenUser)
                 .flatMap(_ =>
                   converterService.asApiLearningpathV2(

learningpath-api/src/test/scala/no/ndla/learningpathapi/service/ConverterServiceTest.scala

@@ -63,6 +63,7 @@ class ConverterServiceTest extends UnitSuite with UnitTestEnvironment {
     true,
     List("nb"),
     None,
+    None,
     None
   )
   val domainLearningStep: LearningStep =
@@ -137,6 +138,7 @@ class ConverterServiceTest extends UnitSuite with UnitTestEnvironment {
         canEdit = true,
         List("nb", "en"),
         None,
+        None,
         None
       )
     )
@@ -188,6 +190,7 @@ class ConverterServiceTest extends UnitSuite with UnitTestEnvironment {
         true,
         List("nb", "en"),
         None,
+        None,
         None
       )
     )

learningpath-api/src/test/scala/no/ndla/learningpathapi/service/UpdateServiceTest.scala

@@ -406,6 +406,26 @@ class UpdateServiceTest extends UnitSuite with UnitTestEnvironment {
     verify(searchIndexService, times(1)).indexDocument(any[LearningPath])
   }
 
+  test("That updateLearningPathStatusV2 updates madeAvailable when going to UNLISTED") {
+    when(learningPathRepository.withIdIncludingDeleted(eqTo(PUBLISHED_ID))(any[DBSession]))
+      .thenReturn(Some(PUBLISHED_LEARNINGPATH))
+    when(learningPathRepository.update(any[LearningPath])(any[DBSession]))
+      .thenReturn(PUBLISHED_LEARNINGPATH.copy(status = learningpath.LearningPathStatus.PRIVATE))
+    when(learningPathRepository.learningPathsWithIsBasedOn(PUBLISHED_ID)).thenReturn(List())
+    val nowDate = NDLADate.fromUnixTime(1337)
+    when(clock.now()).thenReturn(nowDate)
+    val user = PRIVATE_OWNER.copy(permissions = Set(LEARNINGPATH_API_ADMIN)).toCombined
+
+    service.updateLearningPathStatusV2(PUBLISHED_ID, LearningPathStatus.UNLISTED, user, "nb").failIfFailure
+
+    val expectedLearningPath = PUBLISHED_LEARNINGPATH.copy(
+      status = LearningPathStatus.UNLISTED,
+      lastUpdated = nowDate,
+      madeAvailable = Some(nowDate)
+    )
+    verify(learningPathRepository, times(1)).update(eqTo(expectedLearningPath))(any)
+  }
+
   test(
     "That updateLearningPathStatusV2 updates the status when the given user is not the owner, but is admin and the status is PUBLISHED"
   ) {