Adds a Deletion event cache.

quartz/src/main/java/com/vitorpamplona/quartz/encoders/ATag.kt

@@ -25,7 +25,7 @@ import androidx.compose.runtime.Immutable
 
 @Immutable
 data class ATag(val kind: Int, val pubKeyHex: String, val dTag: String, val relay: String?) {
-    fun toTag() = "$kind:$pubKeyHex:$dTag"
+    fun toTag() = assembleATag(kind, pubKeyHex, dTag)
 
     fun toNAddr(): String {
         return TlvBuilder()
@@ -40,6 +40,12 @@ data class ATag(val kind: Int, val pubKeyHex: String, val dTag: String, val rela
     }
 
     companion object {
+        fun assembleATag(
+            kind: Int,
+            pubKeyHex: String,
+            dTag: String,
+        ) = "$kind:$pubKeyHex:$dTag"
+
         fun isATag(key: String): Boolean {
             return key.startsWith("naddr1") || key.contains(":")
         }

quartz/src/main/java/com/vitorpamplona/quartz/events/Event.kt

@@ -514,6 +514,8 @@ interface AddressableEvent {
     fun dTag(): String
 
     fun address(): ATag
+
+    fun addressTag(): String
 }
 
 @Immutable
@@ -529,6 +531,11 @@ open class BaseAddressableEvent(
     override fun dTag() = tags.firstOrNull { it.size > 1 && it[0] == "d" }?.get(1) ?: ""
 
     override fun address() = ATag(kind, pubKey, dTag(), null)
+
+    /**
+     * Creates the tag in a memory effecient way (without creating the ATag class
+     */
+    override fun addressTag() = ATag.assembleATag(kind, pubKey, dTag())
 }
 
 fun String.bytesUsedInMemory(): Int {

quartz/src/main/java/com/vitorpamplona/quartz/events/LongTextNoteEvent.kt

@@ -39,6 +39,8 @@ class LongTextNoteEvent(
 
     override fun address() = ATag(kind, pubKey, dTag(), null)
 
+    override fun addressTag() = ATag.assembleATag(kind, pubKey, dTag())
+
     fun topics() = hashtags()
 
     fun title() = tags.firstOrNull { it.size > 1 && it[0] == "title" }?.get(1)

quartz/src/main/java/com/vitorpamplona/quartz/events/WikiNoteEvent.kt

@@ -39,6 +39,8 @@ class WikiNoteEvent(
 
     override fun address() = ATag(kind, pubKey, dTag(), null)
 
+    override fun addressTag() = ATag.assembleATag(kind, pubKey, dTag())
+
     fun topics() = hashtags()
 
     fun title() = tags.firstOrNull { it.size > 1 && it[0] == "title" }?.get(1)