From 787672486835add8f75e569db37a329451399561 Mon Sep 17 00:00:00 2001
From: Alex 'mcmonkey' Goodwin <agoodwin@freneticllc.com>
Date: Sat, 9 Oct 2021 06:28:14 -0700
Subject: [PATCH] bossbar viewer tags

---
 .../denizen/objects/PlayerTag.java            | 20 ++++++++++++++++++-
 .../commands/server/BossBarCommand.java       | 10 +++-------
 .../denizen/tags/core/ServerTagBase.java      | 20 ++++++++++++++++++-
 3 files changed, 41 insertions(+), 9 deletions(-)

diff --git a/plugin/src/main/java/com/denizenscript/denizen/objects/PlayerTag.java b/plugin/src/main/java/com/denizenscript/denizen/objects/PlayerTag.java
index d397ce79fd..2596d00c49 100644
--- a/plugin/src/main/java/com/denizenscript/denizen/objects/PlayerTag.java
+++ b/plugin/src/main/java/com/denizenscript/denizen/objects/PlayerTag.java
@@ -5,6 +5,7 @@
 import com.denizenscript.denizen.objects.properties.entity.EntityHealth;
 import com.denizenscript.denizen.scripts.commands.player.DisguiseCommand;
 import com.denizenscript.denizen.scripts.commands.player.SidebarCommand;
+import com.denizenscript.denizen.scripts.commands.server.BossBarCommand;
 import com.denizenscript.denizen.utilities.AdvancedTextImpl;
 import com.denizenscript.denizen.utilities.FormattedTextHelper;
 import com.denizenscript.denizen.utilities.ScoreboardHelper;
@@ -43,6 +44,7 @@
 import org.bukkit.advancement.Advancement;
 import org.bukkit.advancement.AdvancementProgress;
 import org.bukkit.block.banner.PatternType;
+import org.bukkit.boss.BossBar;
 import org.bukkit.entity.Entity;
 import org.bukkit.entity.EntityType;
 import org.bukkit.entity.FishHook;
@@ -2353,13 +2355,29 @@ else if (foodLevel / maxHunger < 1) {
         // @description
         // Returns the ID of the scoreboard from <@link command scoreboard> that a player is currently viewing, if any.
         // -->
-        registerOnlineOnlyTag("scoreboard_id", (attribute, object) -> {
+        registerTag("scoreboard_id", (attribute, object) -> {
             String id = ScoreboardHelper.viewerMap.get(object.getUUID());
             if (id == null) {
                 return null;
             }
             return new ElementTag(id);
         });
+
+        // <--[tag]
+        // @attribute <PlayerTag.bossbar_ids>
+        // @returns ListTag
+        // @description
+        // Returns a list of all bossbars from <@link command bossbar> that this player can see.
+        // -->
+        registerOnlineOnlyTag("bossbar_ids", (attribute, object) -> {
+            ListTag result = new ListTag();
+            for (Map.Entry<String, BossBar> bar : BossBarCommand.bossBarMap.entrySet()) {
+                if (bar.getValue().getPlayers().contains(object.getPlayerEntity())) {
+                    result.addObject(new ElementTag(bar.getKey(), true));
+                }
+            }
+            return result;
+        });
     }
 
     public static ObjectTagProcessor<PlayerTag> tagProcessor = new ObjectTagProcessor<>();
diff --git a/plugin/src/main/java/com/denizenscript/denizen/scripts/commands/server/BossBarCommand.java b/plugin/src/main/java/com/denizenscript/denizen/scripts/commands/server/BossBarCommand.java
index 9be847ec35..d33bb0fda5 100644
--- a/plugin/src/main/java/com/denizenscript/denizen/scripts/commands/server/BossBarCommand.java
+++ b/plugin/src/main/java/com/denizenscript/denizen/scripts/commands/server/BossBarCommand.java
@@ -51,6 +51,8 @@ public BossBarCommand() {
     //
     // @Tags
     // <server.current_bossbars>
+    // <server.bossbar_viewers[<bossbar_id>]>
+    // <PlayerTag.bossbar_ids>
     //
     // @Usage
     // Shows a message to all online players.
@@ -157,13 +159,7 @@ public void execute(ScriptEntry scriptEntry) {
         ElementTag style = scriptEntry.getElement("style");
         ListTag options = scriptEntry.getObjectTag("options");
         if (scriptEntry.dbCallShouldDebug()) {
-            Debug.report(scriptEntry, getName(), id.debug() + action.debug()
-                    + (players != null ? players.debug() : "")
-                    + (title != null ? title.debug() : "")
-                    + (progress != null ? progress.debug() : "")
-                    + (color != null ? color.debug() : "")
-                    + (style != null ? style.debug() : "")
-                    + (options != null ? options.debug() : ""));
+            Debug.report(scriptEntry, getName(), id, action, players, title, progress, color, style, options);
         }
         String idString = CoreUtilities.toLowerCase(id.asString());
         switch (Action.valueOf(action.asString().toUpperCase())) {
diff --git a/plugin/src/main/java/com/denizenscript/denizen/tags/core/ServerTagBase.java b/plugin/src/main/java/com/denizenscript/denizen/tags/core/ServerTagBase.java
index c166a91dfc..4a0f748351 100644
--- a/plugin/src/main/java/com/denizenscript/denizen/tags/core/ServerTagBase.java
+++ b/plugin/src/main/java/com/denizenscript/denizen/tags/core/ServerTagBase.java
@@ -42,6 +42,7 @@
 import org.bukkit.*;
 import org.bukkit.block.Biome;
 import org.bukkit.block.banner.PatternType;
+import org.bukkit.boss.BossBar;
 import org.bukkit.configuration.file.YamlConfiguration;
 import org.bukkit.enchantments.Enchantment;
 import org.bukkit.entity.EntityType;
@@ -2072,13 +2073,30 @@ else if (attribute.startsWith("npc_is_valid")
         // @attribute <server.current_bossbars>
         // @returns ListTag
         // @description
-        // Returns a list of all currently active boss bar IDs.
+        // Returns a list of all currently active boss bar IDs from <@link command bossbar>.
         // -->
         else if (attribute.startsWith("current_bossbars")) {
             ListTag dl = new ListTag(BossBarCommand.bossBarMap.keySet());
             event.setReplacedObject(dl.getObjectAttribute(attribute.fulfill(1)));
         }
 
+        // <--[tag]
+        // @attribute <server.bossbar_viewers[<bossbar_id>]>
+        // @returns ListTag(PlayerTag)
+        // @description
+        // Returns a list of players that should be able to see the given bossbar ID from <@link command bossbar>.
+        // -->
+        else if (attribute.startsWith("bossbar_viewers") && attribute.hasContext(1)) {
+            BossBar bar = BossBarCommand.bossBarMap.get(CoreUtilities.toLowerCase(attribute.getContext(1)));
+            if (bar != null) {
+                ListTag list = new ListTag();
+                for (Player player : bar.getPlayers()) {
+                    list.addObject(new PlayerTag(player));
+                }
+                event.setReplacedObject(list.getObjectAttribute(attribute.fulfill(1)));
+            }
+        }
+
         // <--[tag]
         // @attribute <server.recent_tps>
         // @returns ListTag