Update suggestions section on explore screen

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreFragment.kt

@@ -111,7 +111,11 @@ class ExploreFragment :
 	}
 
 	override fun onListHeaderClick(item: ListHeader, view: View) {
-		startActivity(Intent(view.context, SourcesCatalogActivity::class.java))
+		if (item.payload == R.id.nav_suggestions) {
+			startActivity(SuggestionsActivity.newIntent(view.context))
+		} else {
+			startActivity(Intent(view.context, SourcesCatalogActivity::class.java))
+		}
 	}
 
 	override fun onPrimaryButtonClick(tipView: TipView) {

app/src/main/kotlin/org/koitharu/kotatsu/explore/ui/ExploreViewModel.kt

@@ -130,7 +130,7 @@ class ExploreViewModel @Inject constructor(
 		val result = ArrayList<ListModel>(sources.size + 3)
 		result += ExploreButtons(randomLoading)
 		if (recommendation.isNotEmpty()) {
-			result += ListHeader(R.string.suggestions, R.string.more)
+			result += ListHeader(R.string.suggestions, R.string.more, R.id.nav_suggestions)
 			result += RecommendationsItem(recommendation.toRecommendationList())
 		}
 		if (sources.isNotEmpty()) {
@@ -159,7 +159,7 @@ class ExploreViewModel @Inject constructor(
 	private fun getSuggestionFlow() = isSuggestionsEnabled.mapLatest { isEnabled ->
 		if (isEnabled) {
 			runCatchingCancellable {
-				suggestionRepository.getRandomList(8)
+				suggestionRepository.getRandomList(SUGGESTIONS_COUNT)
 			}.getOrDefault(emptyList())
 		} else {
 			emptyList()
@@ -181,6 +181,7 @@ class ExploreViewModel @Inject constructor(
 	companion object {
 
 		private const val TIP_SUGGESTIONS = "suggestions"
+		private const val SUGGESTIONS_COUNT = 8
 		const val TIP_NEW_SOURCES = "new_sources"
 	}
 }

app/src/main/kotlin/org/koitharu/kotatsu/suggestions/data/SuggestionDao.kt

@@ -23,6 +23,10 @@ abstract class SuggestionDao {
 	@Query("SELECT * FROM suggestions ORDER BY RANDOM() LIMIT 1")
 	abstract suspend fun getRandom(): SuggestionWithManga?
 
+	@Transaction
+	@Query("SELECT * FROM suggestions ORDER BY RANDOM() LIMIT :limit")
+	abstract suspend fun getRandom(limit: Int): List<SuggestionWithManga>
+
 	@Query("SELECT COUNT(*) FROM suggestions")
 	abstract suspend fun count(): Int
 

app/src/main/kotlin/org/koitharu/kotatsu/suggestions/domain/SuggestionRepository.kt

@@ -35,7 +35,9 @@ class SuggestionRepository @Inject constructor(
 	}
 
 	suspend fun getRandomList(limit: Int): List<Manga> {
-		return List(limit) { getRandom() }.filterNotNull().distinct() //TODO improve
+		return db.getSuggestionDao().getRandom(limit).map {
+			it.manga.toManga(it.tags.toMangaTags())
+		}
 	}
 
 	suspend fun clear() {

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

@@ -19,7 +19,8 @@
 		android:layout_gravity="center_horizontal"
 		android:layout_marginVertical="@dimen/margin_small"
 		app:dotAlpha="0.6"
-		app:dotSize="8dp"
+		app:dotScale="0.4"
+		app:dotSize="10dp"
 		app:dotSpacing="4dp"
 		tools:max="6"
 		tools:progress="2" />

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

@@ -37,9 +37,10 @@
 	<TextView
 		android:id="@+id/textView_subtitle"
 		android:layout_width="0dp"
-		android:layout_height="wrap_content"
+		android:layout_height="0dp"
 		android:layout_marginStart="16dp"
 		android:layout_marginEnd="8dp"
+		android:layout_marginBottom="8dp"
 		android:ellipsize="end"
 		android:textAppearance="?attr/textAppearanceBodyMedium"
 		app:layout_constraintBottom_toBottomOf="parent"