back to one jar pls

src/main/java/me/clip/placeholderapi/util/Futures.java

@@ -0,0 +1,79 @@
+/*
+ * This file is part of PlaceholderAPI
+ *
+ * PlaceholderAPI
+ * Copyright (c) 2015 - 2026 PlaceholderAPI Team
+ *
+ * PlaceholderAPI free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * PlaceholderAPI 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+package me.clip.placeholderapi.util;
+
+import java.util.Collection;
+import java.util.List;
+import java.util.concurrent.CompletableFuture;
+import java.util.function.BiConsumer;
+import java.util.stream.Collector;
+import java.util.stream.Collectors;
+import java.util.stream.Stream;
+
+import me.clip.placeholderapi.PlaceholderAPIPlugin;
+import org.bukkit.Bukkit;
+import org.bukkit.plugin.Plugin;
+import org.jetbrains.annotations.NotNull;
+
+public final class Futures {
+
+    private Futures() {}
+
+
+    public static <T> void onMainThread(@NotNull final PlaceholderAPIPlugin plugin,
+                                        @NotNull final CompletableFuture<T> future,
+                                        @NotNull final BiConsumer<T, Throwable> consumer) {
+        future.whenComplete((value, exception) -> {
+            if (Bukkit.isPrimaryThread()) {
+                consumer.accept(value, exception);
+            } else {
+                plugin.getScheduler().runTask(() -> consumer.accept(value, exception));
+            }
+        });
+    }
+
+
+    @NotNull
+    public static <T> Collector<CompletableFuture<T>, ?, CompletableFuture<List<T>>> collector() {
+        return Collectors.collectingAndThen(Collectors.toList(), Futures::of);
+    }
+
+
+    @NotNull
+    public static <T> CompletableFuture<List<T>> of(
+            @NotNull final Stream<CompletableFuture<T>> futures) {
+        return of(futures.collect(Collectors.toList()));
+    }
+
+    @NotNull
+    public static <T> CompletableFuture<List<T>> of(
+            @NotNull final Collection<CompletableFuture<T>> futures) {
+        return CompletableFuture.allOf(futures.toArray(new CompletableFuture[0]))
+                .thenApplyAsync($ -> awaitCompletion(futures));
+    }
+
+    @NotNull
+    private static <T> List<T> awaitCompletion(
+            @NotNull final Collection<CompletableFuture<T>> futures) {
+        return futures.stream().map(CompletableFuture::join).collect(Collectors.toList());
+    }
+
+}