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/Datapack.java b/src/main/java/io/papermc/paper/datapack/Datapack.java
new file mode 100644
index 0000000000000000000000000000000000000000..7b2ab0be10a21e0496ad1d485ff8cb2c0b92a2cb
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/Datapack.java
@@ -0,0 +1,32 @@
+package io.papermc.paper.datapack;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+public interface Datapack {
+
+    /**
+     * @return the name of the pack
+     */
+    @NonNull
+    String getName();
+
+    /**
+     * @return the compatibility of the pack
+     */
+    @NonNull
+    Compatibility getCompatibility();
+
+    /**
+     * @return whether or not the pack is currently enabled
+     */
+    boolean isEnabled();
+
+    void setEnabled(boolean enabled);
+
+    enum Compatibility {
+        TOO_OLD,
+        TOO_NEW,
+        COMPATIBLE,
+    }
+
+}
diff --git a/src/main/java/io/papermc/paper/datapack/DatapackManager.java b/src/main/java/io/papermc/paper/datapack/DatapackManager.java
new file mode 100644
index 0000000000000000000000000000000000000000..58f78d5e91beacaf710f62461cf869f70d08b2a2
--- /dev/null
+++ b/src/main/java/io/papermc/paper/datapack/DatapackManager.java
@@ -0,0 +1,21 @@
+package io.papermc.paper.datapack;
+
+import org.checkerframework.checker.nullness.qual.NonNull;
+
+import java.util.Collection;
+
+public interface DatapackManager {
+
+    /**
+     * @return all the packs known to the server
+     */
+    @NonNull
+    Collection<Datapack> getPacks();
+
+    /**
+     * @return all the packs which are currently enabled
+     */
+    @NonNull
+    Collection<Datapack> getEnabledPacks();
+
+}
diff --git a/src/main/java/org/bukkit/Bukkit.java b/src/main/java/org/bukkit/Bukkit.java
index b558fa73dbcf3747690933e6aadf7061a0de2630..be68351555bde59a4e55bf1bad261e9f6bc9f704 100644
--- a/src/main/java/org/bukkit/Bukkit.java
+++ b/src/main/java/org/bukkit/Bukkit.java
@@ -328,9 +328,11 @@ public final class Bukkit {
     /**
      * Get the DataPack Manager.
      *
+     * @deprecated use {@link #getDatapackManager()}
      * @return the manager
      */
     @NotNull
+    @Deprecated(forRemoval = true, since = "1.20")
     public static DataPackManager getDataPackManager() {
         return server.getDataPackManager();
     }
@@ -2617,6 +2619,14 @@ public final class Bukkit {
     public static com.destroystokyo.paper.entity.ai.MobGoals getMobGoals() {
         return server.getMobGoals();
     }
+
+    /**
+     * @return the datapack manager
+     */
+    @NotNull
+    public static io.papermc.paper.datapack.DatapackManager getDatapackManager() {
+        return server.getDatapackManager();
+    }
     // Paper end
 
     @NotNull
diff --git a/src/main/java/org/bukkit/Material.java b/src/main/java/org/bukkit/Material.java
index 7f6cb6471c5f324e2bcdf47d6c7628c2231d7727..d0aaf145cf34e0c02d5c7b842c203d0630b04b53 100644
--- a/src/main/java/org/bukkit/Material.java
+++ b/src/main/java/org/bukkit/Material.java
@@ -5499,6 +5499,7 @@ public enum Material implements Keyed, Translatable, net.kyori.adventure.transla
      * @param world the world to check
      * @return true if this material can be used in this World.
      */
+    @Deprecated(forRemoval = true, since = "1.20") // Paper
     public boolean isEnabledByFeature(@NotNull World world) {
         if (isItem()) {
             return Bukkit.getDataPackManager().isEnabledByFeature(asItemType(), world);
diff --git a/src/main/java/org/bukkit/Server.java b/src/main/java/org/bukkit/Server.java
index 42930006b6425b5d82233e4ffe7025ce5397b277..45693e6c02eac37eb609cd3c59253a949a6ca4c0 100644
--- a/src/main/java/org/bukkit/Server.java
+++ b/src/main/java/org/bukkit/Server.java
@@ -267,9 +267,11 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
     /**
      * Get the DataPack Manager.
      *
+     * @deprecated use {@link #getDatapackManager()}
      * @return the manager
      */
     @NotNull
+    @Deprecated(forRemoval = true, since = "1.20") // Paper
     public DataPackManager getDataPackManager();
 
     /**
@@ -2284,5 +2286,11 @@ public interface Server extends PluginMessageRecipient, net.kyori.adventure.audi
      */
     @NotNull
     com.destroystokyo.paper.entity.ai.MobGoals getMobGoals();
+
+    /**
+     * @return the datapack manager
+     */
+    @NotNull
+    io.papermc.paper.datapack.DatapackManager getDatapackManager();
     // Paper end
 }
diff --git a/src/main/java/org/bukkit/entity/EntityType.java b/src/main/java/org/bukkit/entity/EntityType.java
index 976f701ed9b9873945a5628173c580e2e6873864..eea0351559a2835280713f5d5d1d430c7cf857a0 100644
--- a/src/main/java/org/bukkit/entity/EntityType.java
+++ b/src/main/java/org/bukkit/entity/EntityType.java
@@ -449,6 +449,7 @@ public enum EntityType implements Keyed, Translatable, net.kyori.adventure.trans
      * @param world the world to check
      * @return true if this EntityType can be used to spawn an Entity for this World.
      */
+    @Deprecated(forRemoval = true, since = "1.20") // Paper
     public boolean isEnabledByFeature(@NotNull World world) {
         return Bukkit.getDataPackManager().isEnabledByFeature(this, world);
     }
diff --git a/src/main/java/org/bukkit/packs/DataPack.java b/src/main/java/org/bukkit/packs/DataPack.java
index ea03c51d51e015e69d3aaa795547033ceabff9e0..f51d59e6369c76e333fd9e58e711c2b6f245882d 100644
--- a/src/main/java/org/bukkit/packs/DataPack.java
+++ b/src/main/java/org/bukkit/packs/DataPack.java
@@ -9,7 +9,9 @@ import org.jetbrains.annotations.NotNull;
  * Represents a data pack.
  *
  * @see <a href="https://minecraft.wiki/w/Data_pack">Minecraft wiki</a>
+ * @deprecated use {@link io.papermc.paper.datapack.Datapack}
  */
+@Deprecated(forRemoval = true, since = "1.20") // Paper
 public interface DataPack extends Keyed {
 
     /**
diff --git a/src/main/java/org/bukkit/packs/DataPackManager.java b/src/main/java/org/bukkit/packs/DataPackManager.java
index aee6e828c6fac9b010356af1239a58b4579c1773..1b850e76a885f0da653d4b48db72e5f85ae72805 100644
--- a/src/main/java/org/bukkit/packs/DataPackManager.java
+++ b/src/main/java/org/bukkit/packs/DataPackManager.java
@@ -13,7 +13,9 @@ import org.jetbrains.annotations.Nullable;
 
 /**
  * Manager of data packs.
+ * @deprecated use {@link io.papermc.paper.datapack.DatapackManager}
  */
+@Deprecated(forRemoval = true, since = "1.20") // Paper
 public interface DataPackManager {
 
     /**