ref: async and thread stuff

app/src/main/java/ru/risdeveau/pixeldragon/repo/Room.kt

@@ -5,6 +5,9 @@
 
 package ru.risdeveau.pixeldragon.repo
 
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import ru.risdeveau.pixeldragon.api.getJoinedRooms
 import ru.risdeveau.pixeldragon.api.getRoom
 import ru.risdeveau.pixeldragon.db.cacheDb
@@ -32,8 +35,10 @@ class Room (
                 (!cached or (cachedRoom == null) or (cachedRoom?.isExpired() == true))
             ) {
                 val room = getRoom(id)
-                val cacheRoom = room.toEntity()
-                cacheDb.roomDoa().insert(cacheRoom)
+                CoroutineScope(Dispatchers.IO).launch {
+                    val cacheRoom = room.toEntity()
+                    cacheDb.roomDoa().insert(cacheRoom)
+                }
                 return room
             }
             return cachedRoom!!.toDomain()
@@ -41,8 +46,15 @@ class Room (
 
         suspend fun getJoined(cached: Boolean = true): List<Room> {
             val cacheJoined = cacheDb.roomDoa().getAllJoined()
-            if (!isConnected() and cacheJoined.isEmpty()) {
-                return getJoinedRooms()
+            if (isConnected() and
+                (!cached or cacheJoined.isEmpty() or (cacheJoined.any { it.isExpired() }))
+            ) {
+                val rooms = getJoinedRooms()
+                CoroutineScope(Dispatchers.IO).launch {
+                    val roomsDb = List(rooms.size) { i -> rooms[i].toEntity() }
+                    cacheDb.roomDoa().insert(*roomsDb.toTypedArray())
+                }
+                return rooms
             }
             return List(cacheJoined.size) { i -> cacheJoined[i].toDomain() }
         }