Refresh placeholders set in the Plan config more often

Affects issue:
- Fixed #2225

Plan/bukkit/src/main/java/com/djrapitops/plan/addons/placeholderapi/PlaceholderCacheRefreshTask.java

@@ -0,0 +1,66 @@
+/*
+ *  This file is part of Player Analytics (Plan).
+ *
+ *  Plan is free software: you can redistribute it and/or modify
+ *  it under the terms of the GNU Lesser General Public License v3 as published by
+ *  the Free Software Foundation, either version 3 of the License, or
+ *  (at your option) any later version.
+ *
+ *  Plan is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU Lesser General Public License for more details.
+ *
+ *  You should have received a copy of the GNU Lesser General Public License
+ *  along with Plan. If not, see <https://www.gnu.org/licenses/>.
+ */
+package com.djrapitops.plan.addons.placeholderapi;
+
+import com.djrapitops.plan.TaskSystem;
+import com.djrapitops.plan.settings.config.PlanConfig;
+import me.clip.placeholderapi.PlaceholderAPI;
+import net.playeranalytics.plugin.scheduling.RunnableFactory;
+import net.playeranalytics.plugin.scheduling.TimeAmount;
+import org.bukkit.Bukkit;
+import org.bukkit.entity.Player;
+
+import javax.inject.Inject;
+import javax.inject.Singleton;
+import java.util.List;
+import java.util.concurrent.TimeUnit;
+
+@Singleton
+public class PlaceholderCacheRefreshTask extends TaskSystem.Task {
+
+    private final PlanConfig config;
+
+    @Inject
+    public PlaceholderCacheRefreshTask(PlanConfig config) {
+        this.config = config;
+    }
+
+    @Override
+    public void register(RunnableFactory runnableFactory) {
+        runnableFactory.create(this).runTaskTimer(
+                TimeAmount.toTicks(60, TimeUnit.SECONDS),
+                TimeAmount.toTicks(15, TimeUnit.SECONDS)
+        );
+    }
+
+    @Override
+    public void run() {
+        if (!config.getNode("Plugins.PlaceholderAPI").isPresent()) {
+            cancel(); // Cancel the task and don't do anything if PlaceholderAPI is not installed.
+            return;
+        }
+        List<String> placeholders = config.getStringList("Plugins.PlaceholderAPI.Load_these_placeholders_on_join");
+        if (placeholders.isEmpty() || (placeholders.size() == 1 && placeholders.contains("%plan_server_uuid%"))) {
+            // Don't do anything if using default settings or placeholder api is not installed
+            return;
+        }
+
+        for (Player onlinePlayer : Bukkit.getOnlinePlayers()) {
+            PlaceholderAPI.setPlaceholders(onlinePlayer, placeholders.toString());
+        }
+    }
+}

Plan/bukkit/src/main/java/com/djrapitops/plan/modules/bukkit/BukkitTaskModule.java

@@ -17,6 +17,7 @@
 package com.djrapitops.plan.modules.bukkit;
 
 import com.djrapitops.plan.TaskSystem;
+import com.djrapitops.plan.addons.placeholderapi.PlaceholderCacheRefreshTask;
 import com.djrapitops.plan.delivery.web.ResourceWriteTask;
 import com.djrapitops.plan.delivery.web.WebAssetVersionCheckTask;
 import com.djrapitops.plan.delivery.webserver.auth.ActiveCookieExpiryCleanupTask;
@@ -103,4 +104,8 @@ public interface BukkitTaskModule {
     @Binds
     @IntoSet
     TaskSystem.Task bindExtensionDisableOnGameServerTask(ExtensionDisableOnGameServerTask extensionDisableOnGameServerTask);
+
+    @Binds
+    @IntoSet
+    TaskSystem.Task bindPlaceholderWarmupTask(PlaceholderCacheRefreshTask placeholderCacheRefreshTask);
 }

Plan/extensions/build.gradle

@@ -33,7 +33,7 @@ dependencies {
     implementation 'com.djrapitops:Extension-MyPet:3.10-R0.2'
     implementation 'com.djrapitops:Extension-Nucleus:2.3.0-R0.1'
     implementation 'com.djrapitops:Extension-nuVotifier:2.3.4-R0.3'
-    implementation 'com.djrapitops:Extension-PlaceholderAPI:2.10.9-R0.4'
+    implementation 'com.djrapitops:Extension-PlaceholderAPI:2.10.9-R0.5'
     implementation 'com.djrapitops:Extension-PlotSquared:5.13.11-R0.2'
     implementation 'com.djrapitops:Extension-ProtectionStones:2.8.2-R0.2'
     implementation 'com.djrapitops:Extension-ProtocolSupport:1.16.4-R0.1'