/*
 * Copyright (c) 2023, Andreas Kling <andreas@ladybird.org>
 *
 * SPDX-License-Identifier: BSD-2-Clause
 */

#include <LibCore/Event.h>
#include <LibCore/EventLoopImplementation.h>
#include <LibCore/ThreadEventQueue.h>
#ifdef AK_OS_WINDOWS
#    include <LibCore/EventLoopImplementationWindows.h>
#else
#    include <LibCore/EventLoopImplementationUnix.h>
#endif

namespace Core {

EventLoopImplementation::EventLoopImplementation()
    : m_thread_event_queue(ThreadEventQueue::current())
{
}

EventLoopImplementation::~EventLoopImplementation() = default;

void EventLoopImplementation::deferred_invoke(Function<void()>&& invokee)
{
    m_thread_event_queue.deferred_invoke(move(invokee));
    if (&m_thread_event_queue != ThreadEventQueue::current_or_null())
        wake();
}

static EventLoopManager* s_event_loop_manager = nullptr;
EventLoopManager& EventLoopManager::the()
{
    if (!s_event_loop_manager)
        s_event_loop_manager = new EventLoopManagerPlatform;
    return *s_event_loop_manager;
}

void EventLoopManager::install(Core::EventLoopManager& manager)
{
    VERIFY(!s_event_loop_manager);
    s_event_loop_manager = &manager;
}

EventLoopManager::EventLoopManager() = default;

EventLoopManager::~EventLoopManager() = default;

}
