actually check for empty string and not for null

pom.xml

@@ -6,7 +6,7 @@
 
     <groupId>me.youhavetrouble</groupId>
     <artifactId>PreventStabby</artifactId>
-    <version>1.10.1</version>
+    <version>1.11.0</version>
     <packaging>jar</packaging>
 
     <name>PreventStabby</name>

src/main/java/me/youhavetrouble/preventstabby/listeners/pets/PetTargettingMountListener.java

@@ -3,6 +3,7 @@ package me.youhavetrouble.preventstabby.listeners.pets;
 import me.youhavetrouble.preventstabby.PreventStabby;
 import me.youhavetrouble.preventstabby.players.SmartCache;
 import me.youhavetrouble.preventstabby.util.PreventStabbyListener;
+import me.youhavetrouble.preventstabby.util.PvpState;
 import me.youhavetrouble.preventstabby.util.Util;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.Tameable;
@@ -14,8 +15,12 @@ import org.bukkit.event.Listener;
 @PreventStabbyListener
 public class PetTargettingMountListener implements Listener {
 
+    /**
+     * TODO - this needs to pass canDamage() in the future, for now it just checks forced pvp state directly
+     */
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onWolfAttackMount(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
+        if (PreventStabby.getPlugin().getPlayerManager().getForcedPvpState() == PvpState.ENABLED) return;
         if (!(event.getDamager() instanceof Tameable) || event.getEntity().getPassengers().isEmpty()) return;
         Tameable damager = (Tameable) event.getDamager();
         Entity victim = event.getEntity();

src/main/java/me/youhavetrouble/preventstabby/listeners/pets/PetTargettingPetListener.java

@@ -1,7 +1,9 @@
 package me.youhavetrouble.preventstabby.listeners.pets;
 
 import me.youhavetrouble.preventstabby.PreventStabby;
+import me.youhavetrouble.preventstabby.config.ConfigCache;
 import me.youhavetrouble.preventstabby.players.SmartCache;
+import me.youhavetrouble.preventstabby.util.CombatTimer;
 import me.youhavetrouble.preventstabby.util.PreventStabbyListener;
 import org.bukkit.entity.Tameable;
 import org.bukkit.entity.Wolf;
@@ -14,23 +16,21 @@ public class PetTargettingPetListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onWolfAttackWolf(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
-        if (event.getDamager() instanceof Tameable && event.getEntity() instanceof Tameable) {
-            Tameable damager = (Tameable) event.getDamager();
-            Tameable victim = (Tameable) event.getEntity();
-            if (damager.getOwner() == null || victim.getOwner() == null) return;
+        if (!(event.getDamager() instanceof Tameable) || !(event.getEntity() instanceof Tameable)) return;
+        Tameable damager = (Tameable) event.getDamager();
+        Tameable victim = (Tameable) event.getEntity();
+        if (damager.getOwner() == null || victim.getOwner() == null) return;
+
+        if (!PreventStabby.getPlugin().getPlayerManager()
+                .canDamage(
+                        damager.getUniqueId(),
+                        victim.getUniqueId(),
+                        false,
+                        false
+                ))
+            event.setCancelled(true);
 
-            SmartCache smartCache = PreventStabby.getPlugin().getSmartCache();
-            boolean damagerPvpEnabled = smartCache.getPlayerData(damager.getOwner().getUniqueId()).isPvpEnabled();
-            boolean victimPvpEnabled = smartCache.getPlayerData(victim.getOwner().getUniqueId()).isPvpEnabled();
 
-            if (!victimPvpEnabled || !damagerPvpEnabled) {
-                if (damager instanceof Wolf) {
-                    Wolf wolf = (Wolf) damager;
-                    wolf.setAngry(false);
-                }
-                event.setCancelled(true);
-            }
-        }
     }
 
 }

src/main/java/me/youhavetrouble/preventstabby/listeners/pets/PlayerAttackPetListener.java

@@ -2,15 +2,14 @@ package me.youhavetrouble.preventstabby.listeners.pets;
 
 import me.youhavetrouble.preventstabby.PreventStabby;
 import me.youhavetrouble.preventstabby.config.ConfigCache;
-import me.youhavetrouble.preventstabby.players.SmartCache;
 import me.youhavetrouble.preventstabby.util.CombatTimer;
-import me.youhavetrouble.preventstabby.util.PluginMessages;
 import me.youhavetrouble.preventstabby.util.PreventStabbyListener;
 import org.bukkit.entity.Player;
 import org.bukkit.entity.Tameable;
 import org.bukkit.event.EventHandler;
 import org.bukkit.event.EventPriority;
 import org.bukkit.event.Listener;
+import org.bukkit.event.entity.EntityDamageByEntityEvent;
 
 import java.util.UUID;
 
@@ -18,32 +17,31 @@ import java.util.UUID;
 public class PlayerAttackPetListener implements Listener {
 
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
-    public void onPlayerAttackPet(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
+    public void onPlayerAttackPet(EntityDamageByEntityEvent event) {
 
-        if (event.getDamager() instanceof Player && event.getEntity() instanceof Tameable) {
-            SmartCache smartCache = PreventStabby.getPlugin().getSmartCache();
-            Tameable tameable = (Tameable) event.getEntity();
-            if (tameable.getOwner() == null) return;
+        if (!(event.getDamager() instanceof Player) || !(event.getEntity() instanceof Tameable)) return;
 
-            UUID damager = event.getDamager().getUniqueId();
-            UUID victim = tameable.getOwner().getUniqueId();
+        Tameable tameable = (Tameable) event.getEntity();
+        if (tameable.getOwner() == null) return;
 
-            if (damager.equals(victim)) return;
+        UUID damager = event.getDamager().getUniqueId();
+        UUID victim = tameable.getOwner().getUniqueId();
 
-            ConfigCache config = PreventStabby.getPlugin().getConfigCache();
-            boolean damagerPvpState = PreventStabby.getPlugin().getPlayerManager().getPlayerPvPState(damager);
-            if (!damagerPvpState) {
-                PluginMessages.sendActionBar(damager, config.getCannot_attack_pets_attacker());
-                event.setCancelled(true);
-                return;
-            }
-            if (!smartCache.getPlayerData(victim).isPvpEnabled()) {
-                PluginMessages.sendActionBar(damager, config.getCannot_attack_pets_victim());
-                event.setCancelled(true);
-                return;
-            }
+        if (damager.equals(victim)) return;
+
+        ConfigCache config = PreventStabby.getPlugin().getConfigCache();
+
+        if (PreventStabby.getPlugin().getPlayerManager()
+                .canDamage(
+                        damager,
+                        victim,
+                        config.getCannot_attack_pets_attacker(),
+                        config.getCannot_attack_pets_victim(),
+                        false
+                ))
             CombatTimer.refreshPlayersCombatTime(damager);
+        else
+            event.setCancelled(true);
 
-        }
     }
 }

src/main/java/me/youhavetrouble/preventstabby/listeners/pets/PlayerHitPetWithProjectileListener.java

@@ -18,37 +18,36 @@ import java.util.UUID;
 @PreventStabbyListener
 public class PlayerHitPetWithProjectileListener implements Listener {
 
-     /**
+    /**
      * Cancels damage done by projectiles to pets of players with pvp off
      */
     @EventHandler(priority = EventPriority.HIGHEST, ignoreCancelled = true)
     public void onPlayerHitPetWithProjectile(org.bukkit.event.entity.EntityDamageByEntityEvent event) {
-        if (event.getEntity() instanceof Tameable && event.getDamager() instanceof Projectile) {
-            Projectile projectile = (Projectile) event.getDamager();
-            if (!(projectile.getShooter() instanceof Player)) return;
-            Tameable tameable = (Tameable) event.getEntity();
-            if (tameable.getOwner() == null) return;
+        if (!(event.getEntity() instanceof Tameable) || !(event.getDamager() instanceof Projectile)) return;
+        Projectile projectile = (Projectile) event.getDamager();
+        if (!(projectile.getShooter() instanceof Player)) return;
+        Tameable tameable = (Tameable) event.getEntity();
+        if (tameable.getOwner() == null) return;
 
-            UUID damager = ((Player) projectile.getShooter()).getUniqueId();
-            UUID victim = tameable.getOwner().getUniqueId();
+        UUID damager = ((Player) projectile.getShooter()).getUniqueId();
+        UUID victim = tameable.getOwner().getUniqueId();
 
-            if (damager.equals(victim)) return;
+        if (damager.equals(victim)) return;
 
-            ConfigCache config = PreventStabby.getPlugin().getConfigCache();
-            SmartCache smartCache = PreventStabby.getPlugin().getSmartCache();
+        ConfigCache config = PreventStabby.getPlugin().getConfigCache();
 
-            if (!smartCache.getPlayerData(damager).isPvpEnabled()) {
-                PluginMessages.sendActionBar(damager, config.getCannot_attack_pets_attacker());
-                event.setCancelled(true);
-                return;
-            }
-            if (!smartCache.getPlayerData(victim).isPvpEnabled()) {
-                PluginMessages.sendActionBar(damager, config.getCannot_attack_pets_victim());
-                event.setCancelled(true);
-                return;
-            }
+        if (PreventStabby.getPlugin().getPlayerManager()
+                .canDamage(
+                        damager,
+                        victim,
+                        config.getCannot_attack_pets_attacker(),
+                        config.getCannot_attack_pets_victim(),
+                        false
+                ))
             CombatTimer.refreshPlayersCombatTime(damager);
+        else
+            event.setCancelled(true);
+
 
-        }
     }
 }

src/main/java/me/youhavetrouble/preventstabby/players/PlayerManager.java

@@ -12,6 +12,7 @@ import org.bukkit.Bukkit;
 import org.bukkit.entity.Player;
 import org.bukkit.scheduler.BukkitTask;
 
+import javax.annotation.Nullable;
 import java.time.Instant;
 import java.util.UUID;
 import java.util.concurrent.ConcurrentHashMap;
@@ -142,6 +143,22 @@ public class PlayerManager {
      * @return Whenever attacker can harm the victim.
      */
     public boolean canDamage(UUID attacker, UUID victim, boolean sendDenyMessage, boolean checkVictimSpawnProtection) {
+        ConfigCache config = PreventStabby.getPlugin().getConfigCache();
+        String attackerMessage = sendDenyMessage ? config.getCannot_attack_attacker() : null;
+        String victimMessage = sendDenyMessage ? config.getCannot_attack_victim() : null;
+        return canDamage(attacker, victim, attackerMessage, victimMessage, checkVictimSpawnProtection);
+    }
+
+    /**
+     * Check if attacker can harm the victim.
+     * @param attacker Atacker's UUID.
+     * @param victim Victim's UUID.
+     * @param attackerDenyMessage Message that action was denied to the attacker.
+     * @param victimDenyMessage Message that action was denied to the victim.
+     * @param checkVictimSpawnProtection Should teleport and spawn protections be taken into account?
+     * @return Whenever attacker can harm the victim.
+     */
+    public boolean canDamage(UUID attacker, UUID victim, @Nullable String attackerDenyMessage, @Nullable String victimDenyMessage, boolean checkVictimSpawnProtection) {
 
         if (hasLoginProtection(attacker) || hasTeleportProtection(attacker)) return false;
         if (checkVictimSpawnProtection && hasLoginProtection(victim)) return false;
@@ -165,9 +182,8 @@ public class PlayerManager {
             if (PreventStabby.worldGuardHookEnabled() && attackerPlayer != null && WorldGuardHook.isPlayerForcedToPvp(attackerPlayer))
                 return true;
 
-            if (sendDenyMessage) {
-                ConfigCache config = PreventStabby.getPlugin().getConfigCache();
-                PluginMessages.sendActionBar(attacker, config.getCannot_attack_attacker());
+            if (attackerDenyMessage != null) {
+                PluginMessages.sendActionBar(attacker, attackerDenyMessage);
             }
             return false;
         }
@@ -176,7 +192,7 @@ public class PlayerManager {
             if (PreventStabby.worldGuardHookEnabled() && victimPlayer != null && WorldGuardHook.isPlayerForcedToPvp(victimPlayer))
                 return true;
 
-            if (sendDenyMessage) {
+            if (victimDenyMessage != null) {
                 ConfigCache config = PreventStabby.getPlugin().getConfigCache();
                 PluginMessages.sendActionBar(attacker, config.getCannot_attack_victim());
             }

src/main/java/me/youhavetrouble/preventstabby/util/PluginMessages.java

@@ -24,7 +24,6 @@ public class PluginMessages {
     }
 
     public static Component parseMessage(CommandSender sender,String message) {
-
         if (sender instanceof Player && isPlaceholderApiEnabled()) {
             Player player = (Player) sender;
             message = PlaceholderAPI.setPlaceholders(player, message);
@@ -37,15 +36,18 @@ public class PluginMessages {
     }
 
     public static void sendMessage(CommandSender sender, String message) {
+        if ("".equals(message)) return;
         audiences.sender(sender).sendMessage(parseMessage(sender, message));
     }
 
     public static void sendActionBar(Player player, String message) {
+        if ("".equals(message)) return;
         Component parsedMessage = parseMessage(player, message);
         audiences.player(player).sendActionBar(parsedMessage);
     }
 
     public static void sendActionBar(UUID uuid, String message) {
+        if ("".equals(message)) return;
         Player player = Bukkit.getPlayer(uuid);
         if (player == null) return;
         sendActionBar(player, message);
@@ -57,6 +59,7 @@ public class PluginMessages {
     }
 
     public static void broadcastMessage(Player player, String message) {
+        if ("".equals(message)) return;
         message = parsePlayerName(player, message);
         if (PreventStabby.getPlugin().getServer().getPluginManager().getPlugin("PlaceholderAPI") != null) {
             message = PlaceholderAPI.setPlaceholders(player, message);
@@ -65,6 +68,7 @@ public class PluginMessages {
     }
 
     public static void broadcastMessage(String message) {
+        if ("".equals(message)) return;
         audiences.all().sendMessage(parseMessage(message));
     }