/* Copyright (C) 2005-2023 J.F.Dockes
 *   This program is 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 2 of the License, or
 *   (at your option) any later version.
 *
 *   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.
 *
 *   You should have received a copy of the GNU General Public License
 *   along with this program; if not, write to the
 *   Free Software Foundation, Inc.,
 * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
 */
#include "autoconfig.h"

#include <stdio.h>

#include <QPushButton>
#include <QMessageBox>
#include <QTimer>

#include "recoll.h"
#include "crontool.h"
#include "ecrontab.h"
#include "smallut.h"
#include "rclutil.h"
#include "pathut.h"

using std::string;
using std::vector;
using std::map;
using std::list;

static string marker;

static string idstring(const string& confdir)
{
    // Quote conf dir, there may be spaces and whatelse in there
    return string("RECOLL_CONFDIR=") + escapeShell(confdir);
}

void CronToolW::init()
{
    marker = "RCLCRON_RCLINDEX=";

    enableButton = new QPushButton(tr("Enable"));
    disableButton = new QPushButton(tr("Disable"));
    buttonBox->addButton(enableButton, QDialogButtonBox::ActionRole);
    buttonBox->addButton(disableButton, QDialogButtonBox::ActionRole);
    connect(enableButton, SIGNAL(clicked()), this, SLOT(enableCron()));
    connect(disableButton, SIGNAL(clicked()), this, SLOT(disableCron()));

    // Try to read the current values
    if (!theconfig)
        return;

    if (checkCrontabUnmanaged(marker, "recollindex")) {
        QMessageBox::warning(
            0, "Recoll", tr("It seems that manually edited entries exist for "
                            "recollindex, cannot edit crontab"));
        QTimer::singleShot(0, this, SLOT(close()));
    }
    
    string id = idstring(theconfig->getConfDir());
    vector<string> sched;
    if (getCrontabSched(marker, id, sched)) {
        minsLE->setText(QString::fromUtf8(sched[0].c_str()));
        hoursLE->setText(QString::fromUtf8(sched[1].c_str()));
        daysLE->setText(QString::fromUtf8(sched[4].c_str()));
    }
}

void CronToolW::enableCron()
{
    changeCron(true);
}
void CronToolW::disableCron()
{
    changeCron(false);
}

void CronToolW::changeCron(bool enable)
{
    if (!theconfig)
        return;

    string id = idstring(theconfig->getConfDir());
    string cmd("recollindex");

#ifdef __APPLE__
    // The MACPORTS and HOMEBREW flags are set by the resp. portfile
    // and recipee. Adjust the path for finding recollindex accordingly
#if defined(MACPORTS)
    cmd = string("PATH=/opt/local/bin/:$PATH ") + cmd;
#elif defined(HOMEBREW)
    cmd = string("PATH=/opt/homebrew/bin:/usr/local/bin/:$PATH ") + cmd;
#else
    // Built as a bundle. We add the binary location to the PATH. This is a bit ridiculous because
    // path_pkgdatadir() actually computes the location from the recoll exe but whatever...
    auto bindir = path_cat(path_getfather(path_pkgdatadir()), "MacOS");
    cmd = string("PATH=") + bindir + string(":$PATH ") + cmd;
#endif
#endif

    string reason;

    if (!enable) {
        editCrontab(marker, id, "", "", reason);
        accept();
    } else {
        string mins(qs2utf8s(minsLE->text().remove(QChar(' '))));
        string hours(qs2utf8s(hoursLE->text().remove(QChar(' '))));
        string days(qs2utf8s(daysLE->text().remove(QChar(' '))));
        string sched = mins + " " + hours + "  * * " + days;
        if (editCrontab(marker, id, sched, cmd, reason)) {
            accept();
        }  else {
            QMessageBox::warning(
                0, "Recoll", tr("Error installing cron entry. Bad syntax in fields ?"));
        }        
    }
}
