feat: filter lists by genre

app/src/main/java/ani/dantotsu/connections/anilist/AnilistQueries.kt

@@ -646,7 +646,7 @@ class AnilistQueries {
         sortOrder: String? = null
     ): MutableMap<String, ArrayList<Media>> {
         val response =
-            executeQuery<Query.MediaListCollection>("""{ MediaListCollection(userId: $userId, type: ${if (anime) "ANIME" else "MANGA"}) { lists { name isCustomList entries { status progress private score(format:POINT_100) updatedAt media { id idMal isAdult type status chapters episodes nextAiringEpisode {episode} bannerImage meanScore isFavourite format coverImage{large} startDate{year month day} title {english romaji userPreferred } } } } user { id mediaListOptions { rowOrder animeList { sectionOrder } mangaList { sectionOrder } } } } }""")
+            executeQuery<Query.MediaListCollection>("""{ MediaListCollection(userId: $userId, type: ${if (anime) "ANIME" else "MANGA"}) { lists { name isCustomList entries { status progress private score(format:POINT_100) updatedAt media { id idMal isAdult type status chapters episodes nextAiringEpisode {episode} bannerImage genres meanScore isFavourite format coverImage{large} startDate{year month day} title {english romaji userPreferred } } } } user { id mediaListOptions { rowOrder animeList { sectionOrder } mangaList { sectionOrder } } } } }""")
         val sorted = mutableMapOf<String, ArrayList<Media>>()
         val unsorted = mutableMapOf<String, ArrayList<Media>>()
         val all = arrayListOf<Media>()

app/src/main/java/ani/dantotsu/media/Media.kt

@@ -109,6 +109,7 @@ data class Media(
         this.userScore = mediaList.score?.toInt() ?: 0
         this.userStatus = mediaList.status?.toString()
         this.userUpdatedAt = mediaList.updatedAt?.toLong()
+        this.genres = mediaList.media?.genres?.toMutableList() as? ArrayList<String>? ?: arrayListOf()
     }
 
     constructor(mediaEdge: MediaEdge) : this(mediaEdge.node!!) {

app/src/main/java/ani/dantotsu/media/user/ListActivity.kt

@@ -170,6 +170,21 @@ class ListActivity : AppCompatActivity() {
             popup.show()
         }
 
+        binding.filter.setOnClickListener {
+            val genres = PrefManager.getVal<Set<String>>(PrefName.GenresList).toMutableSet().sorted()
+            val popup = PopupMenu(this, it)
+            popup.menu.add("All")
+            genres.forEach { genre ->
+                popup.menu.add(genre)
+            }
+            popup.setOnMenuItemClickListener { menuItem ->
+                val selectedGenre = menuItem.title.toString()
+                model.filterLists(selectedGenre)
+                true
+            }
+            popup.show()
+        }
+
         binding.random.setOnClickListener {
             //get the current tab
             val currentTab =

app/src/main/java/ani/dantotsu/media/user/ListViewModel.kt

@@ -13,10 +13,29 @@ class ListViewModel : ViewModel() {
     var grid = MutableLiveData(PrefManager.getVal<Boolean>(PrefName.ListGrid))
 
     private val lists = MutableLiveData<MutableMap<String, ArrayList<Media>>>()
+    private val unfilteredLists = MutableLiveData<MutableMap<String, ArrayList<Media>>>()
     fun getLists(): LiveData<MutableMap<String, ArrayList<Media>>> = lists
     suspend fun loadLists(anime: Boolean, userId: Int, sortOrder: String? = null) {
         tryWithSuspend {
-            lists.postValue(Anilist.query.getMediaLists(anime, userId, sortOrder))
+            val res = Anilist.query.getMediaLists(anime, userId, sortOrder)
+            lists.postValue(res)
+            unfilteredLists.postValue(res)
         }
     }
+
+    fun filterLists(genre: String) {
+        if (genre == "All") {
+            lists.postValue(unfilteredLists.value)
+            return
+        }
+        val currentLists = unfilteredLists.value ?: return
+        val filteredLists = currentLists.mapValues { entry ->
+            entry.value.filter { media ->
+                genre in media.genres
+            } as ArrayList<Media>
+        }.toMutableMap()
+
+        lists.postValue(filteredLists)
+    }
+
 }