Update storage interfaces to work with itemfilter as immutable class

src/main/kotlin/ru/dbotthepony/mc/otm/block/entity/storage/StorageInterfaces.kt

@@ -97,25 +97,30 @@ abstract class AbstractStorageImportExport(
 
 	protected val target = CapabilityCache(RelativeSide.FRONT, Capabilities.ItemHandler.BLOCK)
 
-	abstract val filter: ItemFilter
+	var filter: ItemFilter = ItemFilter.EMPTY
+		set(value) {
+			if (value != field) {
+				field = value
+				itemFilterUpdated()
+			}
+		}
+
+	protected open fun itemFilterUpdated() {
+
+	}
 
 	init {
-		savetables.stateful(::filter, FILTER_KEY)
+		savetables.codec(::filter, ItemFilter.CODEC, FILTER_KEY)
 	}
 
 	companion object {
 		const val FILTER_KEY = "filter"
-		const val MAX_FILTERS = 6 * 3
 	}
 }
 
 class StorageImporterBlockEntity(
 	blockPos: BlockPos, blockState: BlockState
 ) : AbstractStorageImportExport(MBlockEntities.STORAGE_IMPORTER, blockPos, blockState), IItemHandler {
-	override val filter = ItemFilter(MAX_FILTERS) {
-		markDirtyFast()
-	}
-
 	private var lastSlot = 0
 	private var nextTick = INTERVAL
 
@@ -236,11 +241,9 @@ class StorageExporterBlockEntity(blockPos: BlockPos, blockState: BlockState) :
 	}
 
 	override fun onStackAdded(stack: ItemStorageStack, id: UUID, provider: IStorageProvider<ItemStorageStack>) {
-		if (!filter.match(stack.toItemStack())) {
-			return
+		if (filter.match(stack.toItemStack())) {
+			relevantTuples.add(id)
 		}
-
-		relevantTuples.add(id)
 	}
 
 	override fun onStackChanged(stack: ItemStorageStack, id: UUID) {
@@ -251,9 +254,8 @@ class StorageExporterBlockEntity(blockPos: BlockPos, blockState: BlockState) :
 		relevantTuples.remove(id)
 	}
 
-	override val filter = ItemFilter(MAX_FILTERS) {
+	override fun itemFilterUpdated() {
 		relevantTuples.clear()
-
 		val component = cell.graph.getVirtualComponent(StorageStack.ITEMS)
 
 		for (tuple in component.stacks) {
@@ -261,13 +263,16 @@ class StorageExporterBlockEntity(blockPos: BlockPos, blockState: BlockState) :
 		}
 
 		lastSlot = 0
-
 		markDirtyFast()
-	}.also { it.isWhitelist = true }
+	}
 
 	private var lastSlot = 0
 	private var nextTick = INTERVAL
 
+	init {
+		filter = filter.isWhitelist(true)
+	}
+
 	override fun tick() {
 		super.tick()