Add per compat project event listeners

[no changelog]

3 files changed, 44 insertions, 6 deletions

diff --git a/src/main/kotlin/events/FirmamentEventBus.kt b/src/main/kotlin/events/FirmamentEventBus.kt
index ee9e6c8..71331d1 100644
--- a/src/main/kotlin/events/FirmamentEventBus.kt
+++ b/src/main/kotlin/events/FirmamentEventBus.kt
@@ -1,8 +1,7 @@
-
-
 package moe.nea.firmament.events
 
 import java.util.concurrent.CopyOnWriteArrayList
+import org.apache.commons.lang3.reflect.TypeUtils
 import moe.nea.firmament.Firmament
 import moe.nea.firmament.util.MC
 
@@ -13,18 +12,31 @@ import moe.nea.firmament.util.MC
  * Subscriptions may not necessarily be delivered in the order of registering.
  */
 open class FirmamentEventBus<T : FirmamentEvent> {
+    companion object {
+        val allEventBuses = mutableListOf<FirmamentEventBus<*>>()
+    }
+
+    val eventType = TypeUtils.getTypeArguments(javaClass, FirmamentEventBus::class.java)!!.values.single()
+
+    init {
+        allEventBuses.add(this)
+    }
+
     data class Handler<T>(
         val invocation: (T) -> Unit, val receivesCancelled: Boolean,
         var knownErrors: MutableSet<Class<*>> = mutableSetOf(),
+        val label: String,
     )
 
     private val toHandle: MutableList<Handler<T>> = CopyOnWriteArrayList()
-    fun subscribe(handle: (T) -> Unit) {
-        subscribe(false, handle)
+    val handlers: List<Handler<T>> get() = toHandle
+
+    fun subscribe(label: String, handle: (T) -> Unit) {
+        subscribe(false, label, handle)
     }
 
-    fun subscribe(receivesCancelled: Boolean, handle: (T) -> Unit) {
-        toHandle.add(Handler(handle, receivesCancelled))
+    fun subscribe(receivesCancelled: Boolean, label: String, handle: (T) -> Unit) {
+        toHandle.add(Handler(handle, receivesCancelled, label = label))
     }
 
     fun publish(event: T): T {
diff --git a/src/main/kotlin/events/subscription/Subscription.kt b/src/main/kotlin/events/subscription/Subscription.kt
index 83b91c9..1c1d3bd 100644
--- a/src/main/kotlin/events/subscription/Subscription.kt
+++ b/src/main/kotlin/events/subscription/Subscription.kt
@@ -13,4 +13,5 @@ data class Subscription<T : FirmamentEvent>(
     val owner: Any,
     val invoke: (T) -> Unit,
     val eventBus: FirmamentEventBus<T>,
+    val methodName: String,
 )
diff --git a/src/main/kotlin/events/subscription/SubscriptionList.kt b/src/main/kotlin/events/subscription/SubscriptionList.kt
new file mode 100644
index 0000000..e74a65a
--- /dev/null
+++ b/src/main/kotlin/events/subscription/SubscriptionList.kt
@@ -0,0 +1,25 @@
+package moe.nea.firmament.events.subscription
+
+import java.util.ServiceLoader
+import kotlin.streams.asSequence
+import moe.nea.firmament.Firmament
+
+interface SubscriptionList {
+    fun provideSubscriptions(addSubscription: (Subscription<*>) -> Unit)
+
+    companion object {
+        val allLists by lazy {
+            ServiceLoader.load(SubscriptionList::class.java)
+                .stream()
+                .asSequence()
+                .mapNotNull {
+                    kotlin.runCatching { it.get() }
+                        .getOrElse { ex ->
+                            Firmament.logger.error("Could not load subscriptions from ${it.type()}", ex)
+                            null
+                        }
+                }
+                .toList()
+        }
+    }
+}