1 files changed, 37 insertions, 0 deletions
diff --git a/src/main/kotlin/ChatStore.kt b/src/main/kotlin/ChatStore.kt
new file mode 100644
index 0000000..2d9ff30
--- /dev/null
+++ b/src/main/kotlin/ChatStore.kt
@@ -0,0 +1,37 @@
+package moe.nea.ultranotifier
+
+import moe.nea.ultranotifier.event.ChatGuiLineEvent
+import moe.nea.ultranotifier.event.PacketChatLineEvent
+import moe.nea.ultranotifier.event.SubscriptionTarget
+import moe.nea.ultranotifier.event.UltraSubscribe
+import moe.nea.ultranotifier.util.IdentityCharacteristics
+import net.minecraft.text.Text
+
+object ChatStore : SubscriptionTarget {
+
+	data class ChatLine(
+		val text: Text,
+		var fromPacket: Boolean = false,
+		var isDisplayed: Boolean = false,
+	)
+
+	val allLines = object : LinkedHashMap<IdentityCharacteristics<Text>, ChatLine>() {
+		override fun removeEldestEntry(eldest: MutableMap.MutableEntry<IdentityCharacteristics<Text>, ChatLine>?): Boolean {
+			return size > 500 // TODO: config
+		}
+	}
+
+	fun insertChatLine(text: Text): ChatLine {
+		return allLines.getOrPut(IdentityCharacteristics(text)) { ChatLine(text) }
+	}
+
+	@UltraSubscribe
+	fun onMessageDisplayed(event: ChatGuiLineEvent) {
+		insertChatLine(event.component).isDisplayed = true
+	}
+
+	@UltraSubscribe
+	fun onMessageReceived(event: PacketChatLineEvent) {
+		insertChatLine(event.component).fromPacket = true
+	}
+}