1 files changed, 48 insertions, 0 deletions
diff --git a/app/src/main/java/mygram/droid/Likes.java b/app/src/main/java/mygram/droid/Likes.java
new file mode 100644
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+++ b/app/src/main/java/mygram/droid/Likes.java
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+/*
+ * mygram-droid: Android TV client for Foldergram.
+ * Copyright (C) 2026 Danilo M. <danix@danix.xyz>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published
+ * by the Free Software Foundation.
+ *
+ * This program 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.
+ */
+
+package mygram.droid;
+
+import org.json.JSONException;
+
+import java.io.IOException;
+import java.util.Set;
+import java.util.concurrent.ConcurrentHashMap;
+
+/** Liked post IDs. Feed items carry no liked flag, so this set drives every heart. */
+final class Likes {
+	private static final Set<Integer> ids = ConcurrentHashMap.newKeySet();
+
+	private Likes() {
+	}
+
+	static void load() throws IOException, JSONException {
+		Set<Integer> fresh = ConcurrentHashMap.newKeySet();
+		for (Post p : Api.likes())
+			fresh.add(p.id);
+		ids.retainAll(fresh);
+		ids.addAll(fresh);
+	}
+
+	static boolean has(int postId) {
+		return ids.contains(postId);
+	}
+
+	static void set(int postId, boolean liked) {
+		if (liked)
+			ids.add(postId);
+		else
+			ids.remove(postId);
+	}
+}