requires paper now, added config, added mementos, added reload command

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>me.youhavetrouble</groupId>
     <artifactId>BeHappyThatItHappened</artifactId>
-    <version>1.0-SNAPSHOT</version>
+    <version>1.1</version>
     <packaging>jar</packaging>
 
     <name>BeHappyThatItHappened</name>

readme.md

@@ -1,3 +1,15 @@
 ### Don't be sad it's gone, be happy that it happened.
 
-Allows you to collect remains of your named companions.
+Allows you to collect remains of your named companions.
+
+#### Configuration
+
+You can reload the configuration with `/bhihreload` while having `bhih.reload` permission
+
+```yaml
+named-entity:
+  rename-drops: true # should mob drops be renamed to the name of the mob
+  drop-nametag: false # should mobs drop (unusable) nametags with their name to be used as mementos
+player:
+  drop-nametag: false # should players drop (unusable) nametags with their name to be used as mementos
+```

src/main/java/me/youhavetrouble/behappythatithappened/BeHappyThatItHappened.java

@@ -1,12 +1,31 @@
 package me.youhavetrouble.behappythatithappened;
 
+import org.bukkit.command.PluginCommand;
 import org.bukkit.plugin.java.JavaPlugin;
 
-public final class BeHappyThatItHappened extends JavaPlugin {
+public class BeHappyThatItHappened extends JavaPlugin {
+
+    protected boolean renameDrops = true;
+    protected boolean renamedMobsDropTag = false;
+    protected boolean playersDropTag = false;
 
     @Override
     public void onEnable() {
-        getServer().getPluginManager().registerEvents(new SadMomentListener(), this);
+        reloadSadness();
+        getServer().getPluginManager().registerEvents(new SadMomentListener(this), this);
+        PluginCommand command = getCommand("bhihreload");
+        if (command == null) {
+            getLogger().warning("You messed with the plugin.yml, didn't you?");
+            return;
+        }
+        command.setExecutor(new ReloadCommand(this));
+    }
+
+    protected void reloadSadness() {
+        saveDefaultConfig();
+        renameDrops = getConfig().getBoolean("named-entity.rename-drops", true);
+        renamedMobsDropTag = getConfig().getBoolean("named-entity.drop-nametag", false);
+        playersDropTag = getConfig().getBoolean("player.drop-nametag", false);
     }
 
 }

src/main/java/me/youhavetrouble/behappythatithappened/ReloadCommand.java

@@ -0,0 +1,31 @@
+package me.youhavetrouble.behappythatithappened;
+
+import org.bukkit.command.Command;
+import org.bukkit.command.CommandSender;
+import org.bukkit.command.TabExecutor;
+import org.jetbrains.annotations.NotNull;
+import org.jetbrains.annotations.Nullable;
+
+import java.util.ArrayList;
+import java.util.List;
+
+public class ReloadCommand implements TabExecutor {
+
+    private final BeHappyThatItHappened plugin;
+
+    public ReloadCommand(BeHappyThatItHappened plugin) {
+        this.plugin = plugin;
+    }
+
+    @Override
+    public boolean onCommand(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s, @NotNull String[] strings) {
+        plugin.reloadSadness();
+        commandSender.sendMessage("Reloaded BeHappyThatItHappened config.");
+        return true;
+    }
+
+    @Override
+    public @Nullable List<String> onTabComplete(@NotNull CommandSender commandSender, @NotNull Command command, @NotNull String s, @NotNull String[] strings) {
+        return new ArrayList<>();
+    }
+}

src/main/java/me/youhavetrouble/behappythatithappened/SadMomentListener.java

@@ -1,28 +1,117 @@
 package me.youhavetrouble.behappythatithappened;
 
+import net.kyori.adventure.text.Component;
+import net.kyori.adventure.text.format.NamedTextColor;
+import net.kyori.adventure.text.format.TextDecoration;
+import org.bukkit.Material;
+import org.bukkit.NamespacedKey;
 import org.bukkit.entity.EntityType;
+import org.bukkit.entity.Player;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageEvent;
 import org.bukkit.event.entity.EntityDeathEvent;
+import org.bukkit.event.entity.PlayerDeathEvent;
+import org.bukkit.event.inventory.PrepareAnvilEvent;
+import org.bukkit.event.player.PlayerInteractEntityEvent;
+import org.bukkit.inventory.ItemStack;
 import org.bukkit.inventory.meta.ItemMeta;
+import org.bukkit.persistence.PersistentDataContainer;
+import org.bukkit.persistence.PersistentDataType;
+
+import java.util.ArrayList;
+import java.util.List;
 
 public class SadMomentListener implements Listener {
 
+    private final ItemMeta nametagMeta = new ItemStack(Material.NAME_TAG).getItemMeta();
+    private final NamespacedKey inMemoryOfKey;
+    private final BeHappyThatItHappened plugin;
+
+    protected SadMomentListener(BeHappyThatItHappened plugin) {
+        this.plugin = plugin;
+        inMemoryOfKey = new NamespacedKey(plugin, "in-memory-of");
+        nametagMeta.getPersistentDataContainer().set(inMemoryOfKey, PersistentDataType.STRING, "");
+    }
+
     @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
     public void onSadMoment(EntityDeathEvent event) {
-
         if (event.getEntityType().equals(EntityType.PLAYER)) return;
-        String inMemoryOf = event.getEntity().getCustomName();
+        Component inMemoryOf = event.getEntity().customName();
         if (inMemoryOf == null) return;
 
-        event.getDrops().forEach(memento -> {
-            ItemMeta respect = memento.getItemMeta();
-            if (respect.hasDisplayName()) return;
-            respect.setDisplayName(inMemoryOf);
-            memento.setItemMeta(respect);
-        });
+        if (plugin.renameDrops) {
+            event.getDrops().forEach(memento -> {
+                ItemMeta respect = memento.getItemMeta();
+                if (respect.hasDisplayName()) return;
+                respect.displayName(inMemoryOf);
+                memento.setItemMeta(respect);
+            });
+        }
 
+        if (plugin.renamedMobsDropTag) {
+            event.getDrops().add(getMemento(inMemoryOf, null));
+        }
+    }
+
+    @EventHandler(priority = EventPriority.NORMAL, ignoreCancelled = true)
+    public void onLossMoment(PlayerDeathEvent event) {
+        if (!plugin.playersDropTag) return;
+        Player player = event.getEntity();
+        ItemStack memento = getMemento(player.displayName(), event.deathMessage());
+        event.getDrops().add(memento);
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    public void onDesecration(PrepareAnvilEvent event) {
+        ItemStack left = event.getInventory().getFirstItem();
+        if (left == null) return;
+        if (!Material.NAME_TAG.equals(left.getType())) return;
+        ItemMeta meta = left.getItemMeta();
+        PersistentDataContainer pdc = meta.getPersistentDataContainer();
+        if (!pdc.has(inMemoryOfKey, PersistentDataType.STRING)) return;
+        event.setResult(null);
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    public void onDesecration(PlayerInteractEntityEvent event) {
+        ItemStack held = event.getPlayer().getInventory().getItemInMainHand();
+        if (!Material.NAME_TAG.equals(held.getType())) return;
+        ItemMeta meta = held.getItemMeta();
+        PersistentDataContainer pdc = meta.getPersistentDataContainer();
+        if (!pdc.has(inMemoryOfKey, PersistentDataType.STRING)) return;
+        event.setCancelled(true);
+    }
+
+    @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
+    public void onDesecration(EntityDamageEvent event) {
+        if (!(event.getEntityType().equals(EntityType.DROPPED_ITEM))) return;
+        if (event.getCause().equals(EntityDamageEvent.DamageCause.VOID)) return;
+        ItemStack item = ((org.bukkit.entity.Item) event.getEntity()).getItemStack();
+        if (!Material.NAME_TAG.equals(item.getType())) return;
+        ItemMeta meta = item.getItemMeta();
+        PersistentDataContainer pdc = meta.getPersistentDataContainer();
+        if (!pdc.has(inMemoryOfKey, PersistentDataType.STRING)) return;
+        event.setCancelled(true);
+    }
+
+    private ItemStack getMemento(Component name, Component message) {
+        ItemStack nametag = new ItemStack(Material.NAME_TAG);
+        ItemMeta meta = nametagMeta;
+        meta.displayName(Component.text("In memory of ").append(name)
+                .decoration(TextDecoration.ITALIC, false)
+                .color(NamedTextColor.WHITE));
+        if (message != null) {
+            List<Component> lore = new ArrayList<>();
+            lore.add(message
+                    .decoration(TextDecoration.ITALIC, false)
+                    .color(NamedTextColor.GRAY)
+        );
+            meta.lore(lore);
+        }
+        nametag.setItemMeta(meta);
+        return nametag;
     }
 
 }

src/main/resources/config.yml

@@ -0,0 +1,5 @@
+named-entity:
+  rename-drops: true
+  drop-nametag: false
+player:
+  drop-nametag: false

src/main/resources/plugin.yml

@@ -5,3 +5,13 @@ api-version: 1.18
 authors: [ YouHaveTrouble ]
 description: Don't be sad that they're gone, be happy they happened
 website: youhavetrouble.me
+commands:
+  bhihreload:
+    description: Reloads the plugin
+    usage: /bhihreload
+    permission: bhih.reload
+    permission-message: You do not have permission to use this command
+permissions:
+    bhih.reload:
+        description: Allows the user to reload the plugin
+        default: op