Paper/patches/server/0520-Added-ServerResourcesReloadedEvent.patch

From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jake Potrebic <jake.m.potrebic@gmail.com>
Date: Wed, 2 Dec 2020 20:04:01 -0800
Subject: [PATCH] Added ServerResourcesReloadedEvent


diff --git a/src/main/java/net/minecraft/server/MinecraftServer.java b/src/main/java/net/minecraft/server/MinecraftServer.java
index 331cc75f4802b7c6a2903d506e58d887ba15921d..27c7c696647271ffed345e339822526730a9523b 100644
--- a/src/main/java/net/minecraft/server/MinecraftServer.java
+++ b/src/main/java/net/minecraft/server/MinecraftServer.java
@@ -2009,7 +2009,13 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
         return this.functionManager;
     }
 
+    // Paper start - add cause
+    @Deprecated @io.papermc.paper.annotation.DoNotUse
     public CompletableFuture<Void> reloadResources(Collection<String> dataPacks) {
+        return this.reloadResources(dataPacks, io.papermc.paper.event.server.ServerResourcesReloadedEvent.Cause.PLUGIN);
+    }
+    public CompletableFuture<Void> reloadResources(Collection<String> dataPacks, io.papermc.paper.event.server.ServerResourcesReloadedEvent.Cause cause) {
+        // Paper end
         RegistryAccess.Frozen iregistrycustom_dimension = this.registries.getAccessForLoading(RegistryLayer.RELOADABLE);
         CompletableFuture<Void> completablefuture = CompletableFuture.supplyAsync(() -> {
             Stream<String> stream = dataPacks.stream(); // CraftBukkit - decompile error
@@ -2050,6 +2056,7 @@ public abstract class MinecraftServer extends ReentrantBlockableEventLoop<TickTa
             this.functionManager.replaceLibrary(this.resources.managers.getFunctionLibrary());
             this.structureTemplateManager.onResourceManagerReload(this.resources.resourceManager);
             org.bukkit.craftbukkit.block.data.CraftBlockData.reloadCache(); // Paper - cache block data strings, they can be defined by datapacks so refresh it here
+            new io.papermc.paper.event.server.ServerResourcesReloadedEvent(cause).callEvent(); // Paper - fire after everything has been reloaded
         }, this);
 
         if (this.isSameThread()) {
diff --git a/src/main/java/net/minecraft/server/commands/ReloadCommand.java b/src/main/java/net/minecraft/server/commands/ReloadCommand.java
index fa18d018a8458b30c0048f7e59aea39f928d974a..87d32af973b84fbbea5dcdb34273f3b3fc82d054 100644
--- a/src/main/java/net/minecraft/server/commands/ReloadCommand.java
+++ b/src/main/java/net/minecraft/server/commands/ReloadCommand.java
@@ -20,7 +20,7 @@ public class ReloadCommand {
     public ReloadCommand() {}
 
     public static void reloadPacks(Collection<String> dataPacks, CommandSourceStack source) {
-        source.getServer().reloadResources(dataPacks).exceptionally((throwable) -> {
+        source.getServer().reloadResources(dataPacks, io.papermc.paper.event.server.ServerResourcesReloadedEvent.Cause.COMMAND).exceptionally((throwable) -> {
             ReloadCommand.LOGGER.warn("Failed to execute reload", throwable);
             source.sendFailure(Component.translatable("commands.reload.failure"));
             return null;
@@ -50,7 +50,7 @@ public class ReloadCommand {
         WorldData savedata = minecraftserver.getWorldData();
         Collection<String> collection = resourcepackrepository.getSelectedIds();
         Collection<String> collection1 = ReloadCommand.discoverNewPacks(resourcepackrepository, savedata, collection);
-        minecraftserver.reloadResources(collection1);
+        minecraftserver.reloadResources(collection1, io.papermc.paper.event.server.ServerResourcesReloadedEvent.Cause.PLUGIN); // Paper
     }
     // CraftBukkit end