/*
    CT Task Header
    --------------------------------------------------------------------
    SPDX-FileCopyrightText: 1999 Gary Meyer <gary@meyer.net>
    --------------------------------------------------------------------
    SPDX-License-Identifier: GPL-2.0-or-later
*/

#pragma once

#include <QIcon>
#include <QPair>

#include <QStringList>

#include "ctdom.h"
#include "ctdow.h"
#include "cthour.h"
#include "ctminute.h"
#include "ctmonth.h"

/**
 * A scheduled task (encapsulation of crontab entry).  Encapsulates
 * parsing, tokenization, and natural language description.
 */
class CTTask
{
public:
    /**
     * Constructs scheduled task from crontab format string.
     */
    explicit CTTask(const QString &tokenString, const QString &_comment, const QString &_userLogin, bool syscron = false);

    /**
     * Copy constructor.
     */
    CTTask(const CTTask &source);

    /**
     * Assignment operator.
     */
    CTTask &operator=(const CTTask &source);

    /**
     * Tokenizes scheduled task to crontab format.
     */
    QString exportTask();

    /**
     * Scheduling using the cron format.
     */
    QString schedulingCronFormat() const;

    /**
     * Mark changes as applied.
     */
    void apply();

    /**
     * Cancel changes.
     */
    void cancel();

    /**
     * Indicates whether or not the task has been modified.
     */
    bool dirty() const;

    /**
     * Returns natural language description of the task's schedule.
     */
    QString describe() const;

    /**
     * Indicates whether or not the task belongs to the system crontab.
     */
    bool isSystemCrontab() const;

    void setSystemCrontab(bool systemCrontab);

    QIcon commandIcon() const;

    /**
     * Internal methods
     */
    QPair<QString, bool> unQuoteCommand() const;
    QStringList separatePathCommand(const QString &command, bool quoted) const;
    QString decryptBinaryCommand(const QString &command) const;

    QString completeCommandPath() const;

    CTMonth month;
    CTDayOfMonth dayOfMonth;
    CTDayOfWeek dayOfWeek;
    CTHour hour;
    CTMinute minute;

    QString userLogin;
    QString command;
    QString comment;

    bool enabled;
    bool reboot;

private:
    inline bool isSpaceAt(const QString &token, int pos)
    {
        if (pos >= token.length()) {
            return false;
        }

        if (token.at(pos) == QLatin1Char(' ')) {
            return true;
        }

        return false;
    }

    QString describeDayOfMonth() const;
    QString describeDayOfWeek() const;
    QString describeDateAndHours() const;

    QString createTimeFormat() const;
    QString createDateFormat() const;

    bool mSystemCrontab;

    QString mInitialUserLogin;
    QString mInitialCommand;
    QString mInitialComment;
    bool mInitialEnabled;
    bool mInitialReboot;
};
