feat: Add name prefetching

1 files changed, 43 insertions, 0 deletions

diff --git a/src/main/kotlin/moe/nea/ledger/modules/ExternalDataProvider.kt b/src/main/kotlin/moe/nea/ledger/modules/ExternalDataProvider.kt
new file mode 100644
index 0000000..93bb453
--- /dev/null
+++ b/src/main/kotlin/moe/nea/ledger/modules/ExternalDataProvider.kt
@@ -0,0 +1,43 @@
+package moe.nea.ledger.modules
+
+import moe.nea.ledger.events.InitializationComplete
+import moe.nea.ledger.events.SupplyDebugInfo
+import moe.nea.ledger.utils.GsonUtil
+import moe.nea.ledger.utils.di.Inject
+import moe.nea.ledger.utils.network.Request
+import moe.nea.ledger.utils.network.RequestUtil
+import net.minecraftforge.common.MinecraftForge
+import net.minecraftforge.fml.common.eventhandler.Event
+import net.minecraftforge.fml.common.eventhandler.SubscribeEvent
+import java.util.concurrent.CompletableFuture
+
+class ExternalDataProvider @Inject constructor(
+	val requestUtil: RequestUtil
+) {
+
+	fun createAuxillaryDataRequest(path: String): Request {
+		return requestUtil.createRequest("https://github.com/nea89o/ledger-auxiliary-data/raw/refs/heads/master/$path")
+	}
+
+	private val itemNameFuture: CompletableFuture<Map<String, String>> = CompletableFuture.supplyAsync {
+		val request = createAuxillaryDataRequest("data/item_names.json")
+		val response = request.execute(requestUtil)
+		val nameMap = response.json(GsonUtil.typeToken<Map<String, String>>())
+		return@supplyAsync nameMap
+	}
+
+	lateinit var itemNames: Map<String, String>
+
+	class DataLoaded(val provider: ExternalDataProvider) : Event()
+
+	@SubscribeEvent
+	fun onDebugData(debugInfo: SupplyDebugInfo) {
+		debugInfo.record("externalItemsLoaded", itemNameFuture.isDone && !itemNameFuture.isCompletedExceptionally)
+	}
+
+	@SubscribeEvent
+	fun onInitComplete(event: InitializationComplete) {
+		itemNames = itemNameFuture.join()
+		MinecraftForge.EVENT_BUS.post(DataLoaded(this))
+	}
+}
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