From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Owen1212055 <23108066+Owen1212055@users.noreply.github.com>
Date: Sun, 3 Mar 2024 19:43:40 +0100
Subject: [PATCH] Suspicious Effect Entry API

Exposes a new suspicious effect entry type that properly represents
storable effects in the context of suspicious effects as they only
define the potion effect type and duration.

This differentiates them from the existing PotionEffect API found in
bukkit and hence clarifies that storable values in the parts of the API
in which it replaces PotionEffect.

Co-authored-by: Yannick Lamprecht <yannicklamprecht@live.de>

diff --git a/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java b/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java
index 9cc81bcccbf1141f66fedada1359b7c0dfa8e22a..5c5b64bd058684520fa175bfd10622ff57856b7c 100644
--- a/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java
+++ b/src/main/java/org/bukkit/craftbukkit/entity/CraftMushroomCow.java
@@ -37,16 +37,24 @@ public class CraftMushroomCow extends CraftCow implements MushroomCow, io.paperm
     @Override
     public boolean addEffectToNextStew(PotionEffect potionEffect, boolean overwrite) {
         Preconditions.checkArgument(potionEffect != null, "PotionEffect cannot be null");
-        MobEffectInstance minecraftPotionEffect = CraftPotionUtil.fromBukkit(potionEffect);
-        if (!overwrite && this.hasEffectForNextStew(potionEffect.getType())) {
+        // Paper start - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
+        return this.addEffectToNextStew(io.papermc.paper.potion.SuspiciousEffectEntry.create(potionEffect.getType(), potionEffect.getDuration()), overwrite);
+    }
+
+    @Override
+    public boolean addEffectToNextStew(io.papermc.paper.potion.SuspiciousEffectEntry suspiciousEffectEntry, boolean overwrite) {
+        Preconditions.checkArgument(suspiciousEffectEntry != null, "SuspiciousEffectEntry cannot be null");
+        Holder<MobEffect> minecraftPotionEffect = CraftPotionEffectType.bukkitToMinecraftHolder(suspiciousEffectEntry.effect());
+        // Paper end - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
+        if (!overwrite && this.hasEffectForNextStew(suspiciousEffectEntry.effect())) {
             return false;
         }
         SuspiciousStewEffects stewEffects = this.getHandle().stewEffects;
         if (stewEffects == null) {
             stewEffects = SuspiciousStewEffects.EMPTY;
         }
-        SuspiciousStewEffects.Entry recordSuspiciousEffect = new SuspiciousStewEffects.Entry(minecraftPotionEffect.getEffect(), minecraftPotionEffect.getDuration());
-        this.removeEffectFromNextStew(potionEffect.getType()); // Avoid duplicates of effects
+        SuspiciousStewEffects.Entry recordSuspiciousEffect = new SuspiciousStewEffects.Entry(minecraftPotionEffect, suspiciousEffectEntry.duration()); // Paper - sus effect entry API
+        this.removeEffectFromNextStew(suspiciousEffectEntry.effect()); // Avoid duplicates of effects // Paper - sus effect entry API
         this.getHandle().stewEffects = stewEffects.withEffectAdded(recordSuspiciousEffect);
         return true;
     }
@@ -101,6 +109,43 @@ public class CraftMushroomCow extends CraftCow implements MushroomCow, io.paperm
         this.getHandle().setVariant(net.minecraft.world.entity.animal.MushroomCow.MushroomType.values()[variant.ordinal()]);
     }
 
+    // Paper start
+    @Override
+    public List<io.papermc.paper.potion.SuspiciousEffectEntry> getStewEffects() {
+        if (this.getHandle().stewEffects == null) {
+            return List.of();
+        }
+
+        final List<io.papermc.paper.potion.SuspiciousEffectEntry> effectEntries = new java.util.ArrayList<>(this.getHandle().stewEffects.effects().size());
+        for (final SuspiciousStewEffects.Entry effect : this.getHandle().stewEffects.effects()) {
+            effectEntries.add(io.papermc.paper.potion.SuspiciousEffectEntry.create(
+                org.bukkit.craftbukkit.potion.CraftPotionEffectType.minecraftHolderToBukkit(effect.effect()),
+                effect.duration()
+            ));
+        }
+
+        return java.util.Collections.unmodifiableList(effectEntries);
+    }
+
+    @Override
+    public void setStewEffects(final List<io.papermc.paper.potion.SuspiciousEffectEntry> effects) {
+        if (effects.isEmpty()) {
+            this.getHandle().stewEffects = null;
+            return;
+        }
+
+        List<SuspiciousStewEffects.Entry> nmsPairs = new java.util.ArrayList<>(effects.size());
+        for (final io.papermc.paper.potion.SuspiciousEffectEntry effect : effects) {
+            nmsPairs.add(new SuspiciousStewEffects.Entry(
+                org.bukkit.craftbukkit.potion.CraftPotionEffectType.bukkitToMinecraftHolder(effect.effect()),
+                effect.duration()
+            ));
+        }
+
+        this.getHandle().stewEffects = new SuspiciousStewEffects(nmsPairs);
+    }
+    // Paper end
+
     @Override
     public String toString() {
         return "CraftMushroomCow";
diff --git a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSuspiciousStew.java b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSuspiciousStew.java
index 8fc3cd507d333d2bdea759d7c102a56e88ad5f5a..14e944b4e83b80e0fc6d81e346cc305ab00561c5 100644
--- a/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSuspiciousStew.java
+++ b/src/main/java/org/bukkit/craftbukkit/inventory/CraftMetaSuspiciousStew.java
@@ -22,7 +22,7 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
 
     static final ItemMetaKeyType<SuspiciousStewEffects> EFFECTS = new ItemMetaKeyType<>(DataComponents.SUSPICIOUS_STEW_EFFECTS, "effects");
 
-    private List<PotionEffect> customEffects;
+    private List<io.papermc.paper.potion.SuspiciousEffectEntry> customEffects; // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
 
     CraftMetaSuspiciousStew(CraftMetaItem meta) {
         super(meta);
@@ -48,7 +48,7 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
                     continue;
                 }
                 int duration = effect.duration();
-                this.customEffects.add(new PotionEffect(type, duration, 0));
+                this.customEffects.add(io.papermc.paper.potion.SuspiciousEffectEntry.create(type, duration)); // Paper - use suspicious effect entry for suspicious stew meta
             }
         });
     }
@@ -74,8 +74,8 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
         if (this.customEffects != null) {
             List<SuspiciousStewEffects.Entry> effectList = new ArrayList<>();
 
-            for (PotionEffect effect : this.customEffects) {
-                effectList.add(new net.minecraft.world.item.component.SuspiciousStewEffects.Entry(CraftPotionEffectType.bukkitToMinecraftHolder(effect.getType()), effect.getDuration()));
+            for (io.papermc.paper.potion.SuspiciousEffectEntry effect : this.customEffects) {
+                effectList.add(new net.minecraft.world.item.component.SuspiciousStewEffects.Entry(CraftPotionEffectType.bukkitToMinecraftHolder(effect.effect()), effect.duration())); // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
             }
             tag.put(CraftMetaSuspiciousStew.EFFECTS, new SuspiciousStewEffects(effectList));
         }
@@ -112,7 +112,7 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
     @Override
     public List<PotionEffect> getCustomEffects() {
         if (this.hasCustomEffects()) {
-            return ImmutableList.copyOf(this.customEffects);
+            return this.customEffects.stream().map(suspiciousEffectEntry -> suspiciousEffectEntry.effect().createEffect(suspiciousEffectEntry.duration(), 0)).toList(); // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
         }
         return ImmutableList.of();
     }
@@ -120,27 +120,47 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
     @Override
     public boolean addCustomEffect(PotionEffect effect, boolean overwrite) {
         Preconditions.checkArgument(effect != null, "Potion effect cannot be null");
+        return addCustomEffect(io.papermc.paper.potion.SuspiciousEffectEntry.create(effect.getType(), effect.getDuration()), overwrite); // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
+    }
 
-        int index = this.indexOfEffect(effect.getType());
-        if (index != -1) {
-            if (overwrite) {
-                PotionEffect old = this.customEffects.get(index);
-                if (old.getDuration() == effect.getDuration()) {
+    // Paper start - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
+    @Override
+    public boolean addCustomEffect(final io.papermc.paper.potion.SuspiciousEffectEntry suspiciousEffectEntry, final boolean overwrite) {
+        Preconditions.checkArgument(suspiciousEffectEntry != null, "Suspicious effect entry cannot be null");
+        if (this.hasCustomEffects()) {
+            final List<io.papermc.paper.potion.SuspiciousEffectEntry> matchingEffects = this.customEffects.stream().filter(
+                entry -> entry.effect() == suspiciousEffectEntry.effect()
+            ).toList();
+            if (!matchingEffects.isEmpty()) {
+                if (overwrite) {
+                    boolean foundMatchingDuration = false;
+                    boolean mutated = false;
+                    for (final io.papermc.paper.potion.SuspiciousEffectEntry matchingEffect : matchingEffects) {
+                        if (matchingEffect.duration() != suspiciousEffectEntry.duration()) {
+                            this.customEffects.remove(suspiciousEffectEntry);
+                            mutated = true;
+                        } else {
+                            foundMatchingDuration = true;
+                        }
+                    }
+                    if (foundMatchingDuration && !mutated) {
+                        return false;
+                    } else if (!foundMatchingDuration) {
+                        this.customEffects.add(suspiciousEffectEntry);
+                    }
+                    return true;
+                } else  {
                     return false;
                 }
-                this.customEffects.set(index, effect);
-                return true;
-            } else {
-                return false;
             }
-        } else {
-            if (this.customEffects == null) {
-                this.customEffects = new ArrayList<>();
-            }
-            this.customEffects.add(effect);
-            return true;
         }
+        if (this.customEffects == null) {
+            this.customEffects = new ArrayList<>();
+        }
+        this.customEffects.add(suspiciousEffectEntry);
+        return true;
     }
+    // Paper end - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
 
     @Override
     public boolean removeCustomEffect(PotionEffectType type) {
@@ -151,10 +171,12 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
         }
 
         boolean changed = false;
-        Iterator<PotionEffect> iterator = this.customEffects.iterator();
+        // Paper start - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
+        Iterator<io.papermc.paper.potion.SuspiciousEffectEntry> iterator = this.customEffects.iterator();
         while (iterator.hasNext()) {
-            PotionEffect effect = iterator.next();
-            if (type.equals(effect.getType())) {
+            io.papermc.paper.potion.SuspiciousEffectEntry effect = iterator.next();
+            if (type.equals(effect.effect())) {
+        // Paper end - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
                 iterator.remove();
                 changed = true;
             }
@@ -177,7 +199,7 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
         }
 
         for (int i = 0; i < this.customEffects.size(); i++) {
-            if (this.customEffects.get(i).getType().equals(type)) {
+            if (this.customEffects.get(i).effect().equals(type)) { // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta
                 return i;
             }
         }
@@ -222,7 +244,7 @@ public class CraftMetaSuspiciousStew extends CraftMetaItem implements Suspicious
         super.serialize(builder);
 
         if (this.hasCustomEffects()) {
-            builder.put(CraftMetaSuspiciousStew.EFFECTS.BUKKIT, ImmutableList.copyOf(this.customEffects));
+            builder.put(CraftMetaSuspiciousStew.EFFECTS.BUKKIT, ImmutableList.copyOf(com.google.common.collect.Lists.transform(this.customEffects, s -> new PotionEffect(s.effect(), s.duration(), 0)))); // Paper - add overloads to use suspicious effect entry to mushroom cow and suspicious stew meta - convert back to potion effect for bukkit legacy item serialisation to maintain backwards compatibility for the written format.
         }
 
         return builder;
