1 files changed, 39 insertions, 0 deletions
diff --git a/src/main/kotlin/io/dico/parcels2/defaultimpl/GlobalAddedDataManagerImpl.kt b/src/main/kotlin/io/dico/parcels2/defaultimpl/GlobalAddedDataManagerImpl.kt
new file mode 100644
index 0000000..1ac053f
--- /dev/null
+++ b/src/main/kotlin/io/dico/parcels2/defaultimpl/GlobalAddedDataManagerImpl.kt
@@ -0,0 +1,39 @@
+@file:Suppress("UNCHECKED_CAST")
+
+package io.dico.parcels2.defaultimpl
+
+import io.dico.parcels2.*
+import java.util.Collections
+import java.util.UUID
+
+class GlobalAddedDataManagerImpl(val plugin: ParcelsPlugin) : GlobalAddedDataManager {
+    private val map = mutableMapOf<ParcelOwner, GlobalAddedData>()
+
+    override fun get(owner: ParcelOwner): GlobalAddedData {
+        return map[owner] ?: GlobalAddedDataImpl(owner).also { map[owner] = it }
+    }
+
+    private inner class GlobalAddedDataImpl(override val owner: ParcelOwner,
+                                            data: MutableAddedDataMap = emptyData)
+        : AddedDataHolder(data), GlobalAddedData {
+
+        private inline var data get() = addedMap; set(value) = run { addedMap = value }
+        private inline val isEmpty get() = data === emptyData
+
+        override fun setAddedStatus(uuid: UUID, status: AddedStatus): Boolean {
+            if (isEmpty) {
+                if (status == AddedStatus.DEFAULT) return false
+                data = mutableMapOf()
+            }
+            return super.setAddedStatus(uuid, status).also {
+                if (it) plugin.storage.setGlobalAddedStatus(owner, uuid, status)
+            }
+        }
+
+    }
+
+    private companion object {
+        val emptyData = Collections.emptyMap<Any, Any>() as MutableAddedDataMap
+    }
+
+}
+\ No newline at end of file