/*-
 * Copyright (c) 2017-2021 Carsten Sonne Larsen <cs@innolan.net>
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. Redistributions in binary form must reproduce the above copyright
 *    notice, this list of conditions and the following disclaimer in the
 *    documentation and/or other materials provided with the distribution.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
 * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 *
 */

#include "config.h"
#include "shutdown.h"
#include "message.h"
#include "sync.h"
#include "win.h"

#include "logmod.h"
#define MODULENAME "Shutdown"

static volatile bool ShutdownInProgress = false;

static void ShutdownSettingsWindow(void)
{
    int count = 0;

    LogTrace("Requesting settings window to close");
    SendMessageWait(MSGPORT_WINDOW, ATK_SHUTDOWN);

    LogTrace("Waiting for settings window to close ...");
    while (WindowProcRunning)
    {
        count++;
        if (count % 10 == 0)
        {
            LogTrace("Waiting for settings window to close ...");
        }
        Delay(50);
    }

    LogTrace("Settings window closed");
}

static void ShutdownSynchronizerProcess(void)
{
    int count = 0;

    LogTrace("Requesting synchronizer process to stop");
    SendMessageWait(MSGPORT_SYNCER, ATK_SHUTDOWN);

    LogTrace("Waiting for synchronizer process to exit ...");
    while (SynchronizerRunning)
    {
        count++;
        if (count % 10 == 0)
        {
            LogTrace("Waiting for synchronizer process to exit ...");
        }
        Delay(50);
    }

    LogTrace("Synchronizer process exited");
}

static void ShutdownProc(void)
{
    ShutdownSettingsWindow();
    ShutdownSynchronizerProcess();

    LogTrace("Complete");
    SendMessageWait(MSGPORT_BROKER, ATK_SHUTDOWN);
}

void StartShutdown(void)
{
    struct Task *task;

    if (ShutdownInProgress)
    {
        LogWarn("Shutdown already in progress");
        return;
    }

    ShutdownInProgress = true;
    LogNotice("Initiating shutdown");

    task = (struct Task *)CreateNewProcTags(
        NP_Entry, (IPTR)ShutdownProc,
        NP_StackSize, 32 * 1024,
        NP_Name, 0,
        NP_Input, 0,
        NP_Output, 0,
        NP_Error, 0,
        NP_CloseInput, FALSE,
        NP_CloseOutput, FALSE,
        NP_CloseError, FALSE,
        NP_WindowPtr, 0,
        NP_ConsoleTask, 0,
        NP_Cli, FALSE,
        TAG_DONE);

    if (task == NULL)
    {
        LogError("Could not start shutdown procedure");
    }
}