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path: root/patches/server/0547-Add-basic-Datapack-API.patch
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From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Connor Linfoot <connorlinfoot@me.com>
Date: Sun, 16 May 2021 15:07:34 +0100
Subject: [PATCH] Add basic Datapack API


diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapack.java b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
new file mode 100644
index 0000000000000000000000000000000000000000..9b7dd8a0fba4547f5268b3f99e21ddbe6b5bf566
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapack.java
@@ -0,0 +1,50 @@
+package io.papermc.paper.datapack;
+
+import io.papermc.paper.event.server.ServerResourcesReloadedEvent;
+import net.minecraft.server.MinecraftServer;
+import net.minecraft.server.packs.repository.Pack;
+import java.util.List;
+import java.util.stream.Collectors;
+
+public class PaperDatapack implements Datapack {
+    private final String name;
+    private final Compatibility compatibility;
+    private final boolean enabled;
+
+    PaperDatapack(Pack loader, boolean enabled) {
+        this.name = loader.getId();
+        this.compatibility = Compatibility.valueOf(loader.getCompatibility().name());
+        this.enabled = enabled;
+    }
+
+    @Override
+    public String getName() {
+        return name;
+    }
+
+    @Override
+    public Compatibility getCompatibility() {
+        return compatibility;
+    }
+
+    @Override
+    public boolean isEnabled() {
+        return enabled;
+    }
+
+    @Override
+    public void setEnabled(boolean enabled) {
+        if (enabled == this.enabled) {
+            return;
+        }
+
+        MinecraftServer server = MinecraftServer.getServer();
+        List<String> enabledKeys = server.getPackRepository().getSelectedPacks().stream().map(Pack::getId).collect(Collectors.toList());
+        if (enabled) {
+            enabledKeys.add(this.name);
+        } else {
+            enabledKeys.remove(this.name);
+        }
+        server.reloadResources(enabledKeys, ServerResourcesReloadedEvent.Cause.PLUGIN);
+    }
+}
diff --git a/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
new file mode 100644
index 0000000000000000000000000000000000000000..cf4374493c11057451a62a655514415cf6b298e0
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/PaperDatapackManager.java
@@ -0,0 +1,25 @@
+package io.papermc.paper.datapack;
+
+import java.util.Collection;
+import java.util.stream.Collectors;
+import net.minecraft.server.packs.repository.Pack;
+import net.minecraft.server.packs.repository.PackRepository;
+
+public class PaperDatapackManager implements DatapackManager {
+    private final PackRepository repository;
+
+    public PaperDatapackManager(PackRepository repository) {
+        this.repository = repository;
+    }
+
+    @Override
+    public Collection<Datapack> getPacks() {
+        Collection<Pack> enabledPacks = repository.getSelectedPacks();
+        return repository.getAvailablePacks().stream().map(loader -> new PaperDatapack(loader, enabledPacks.contains(loader))).collect(Collectors.toList());
+    }
+
+    @Override
+    public Collection<Datapack> getEnabledPacks() {
+        return repository.getSelectedPacks().stream().map(loader -> new PaperDatapack(loader, true)).collect(Collectors.toList());
+    }
+}
diff --git a/src/main/java/org/bukkit/craftbukkit/CraftServer.java b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
index 6debfd5866d4411ef8d51995bd07a0e2ece781b3..507cad6ef11603924389956305908fd157043178 100644
--- a/src/main/java/org/bukkit/craftbukkit/CraftServer.java
+++ b/src/main/java/org/bukkit/craftbukkit/CraftServer.java
@@ -305,6 +305,7 @@ public final class CraftServer implements Server {
     public boolean ignoreVanillaPermissions = false;
     private final List<CraftPlayer> playerView;
     public int reloadCount;
+    private final io.papermc.paper.datapack.PaperDatapackManager datapackManager; // Paper
     public static Exception excessiveVelEx; // Paper - Velocity warnings
 
     static {
@@ -387,6 +388,7 @@ public final class CraftServer implements Server {
         if (this.configuration.getBoolean("settings.use-map-color-cache")) {
             MapPalette.setMapColorCache(new CraftMapColorCache(this.logger));
         }
+        datapackManager = new io.papermc.paper.datapack.PaperDatapackManager(console.getPackRepository()); // Paper
     }
 
     public boolean getCommandBlockOverride(String command) {
@@ -2976,5 +2978,11 @@ public final class CraftServer implements Server {
     public com.destroystokyo.paper.entity.ai.MobGoals getMobGoals() {
         return mobGoals;
     }
+
+    @Override
+    public io.papermc.paper.datapack.PaperDatapackManager getDatapackManager() {
+        return datapackManager;
+    }
+
     // Paper end
 }