/*
 * 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);
	}
}