/***************************************************************************
 *   This file is part of awesome-widgets                                  *
 *                                                                         *
 *   awesome-widgets 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 3 of the    *
 *   License, or (at your option) any later version.                       *
 *                                                                         *
 *   awesome-widgets 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 awesome-widgets. If not, see http://www.gnu.org/licenses/  *
 ***************************************************************************/

#include "awactions.h"

#include <KI18n/KLocalizedString>
#include <KNotifications/KNotification>

#include <QDesktopServices>
#include <QJsonDocument>
#include <QJsonParseError>
#include <QMessageBox>
#include <QNetworkAccessManager>
#include <QNetworkRequest>
#include <QNetworkReply>
#include <QProcess>
#include <QProcessEnvironment>
#include <QStandardPaths>

#include <fontdialog/fontdialog.h>

#include "awdebug.h"
#include "version.h"


AWActions::AWActions(QObject *parent)
    : QObject(parent)
{
    qCDebug(LOG_AW);
}


AWActions::~AWActions()
{
    qCDebug(LOG_AW);
}


void AWActions::checkUpdates(const bool showAnyway)
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Show anyway" << showAnyway;

    // showAnyway options requires to show message if no updates found on direct
    // request. In case of automatic check no message will be shown
    QNetworkAccessManager *manager = new QNetworkAccessManager(nullptr);
    connect(manager, &QNetworkAccessManager::finished,
            [showAnyway, this](QNetworkReply *reply) {
                return versionReplyRecieved(reply, showAnyway);
            });

    manager->get(QNetworkRequest(QUrl(VERSION_API)));
}


// HACK: since QML could not use QLoggingCategory I need this hack
bool AWActions::isDebugEnabled() const
{
    qCDebug(LOG_AW);

    return LOG_AW().isDebugEnabled();
}


bool AWActions::runCmd(const QString cmd) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Cmd" << cmd;

    sendNotification(QString("Info"), i18n("Run %1", cmd));

    return QProcess::startDetached(cmd);
}


// HACK: this method uses variable from version.h
void AWActions::showReadme() const
{
    qCDebug(LOG_AW);

    QDesktopServices::openUrl(QString(HOMEPAGE));
}


// HACK: this method uses variables from version.h
QString AWActions::getAboutText(const QString type) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Type" << type;

    QString text;
    if (type == QString("header")) {
        text = QString(NAME);
    } else if (type == QString("version")) {
        text = i18n("Version %1 (build date %2)", QString(VERSION),
                    QString(BUILD_DATE));
        if (!QString(COMMIT_SHA).isEmpty())
            text += QString(" (%1)").arg(QString(COMMIT_SHA));
    } else if (type == QString("description")) {
        text = i18n("A set of minimalistic plasmoid widgets");
    } else if (type == QString("links")) {
        text = i18n("Links:") + QString("<br>")
               + QString("<a href=\"%1\">%2</a><br>")
                     .arg(QString(HOMEPAGE))
                     .arg(i18n("Homepage"))
               + QString("<a href=\"%1\">%2</a><br>")
                     .arg(QString(REPOSITORY))
                     .arg(i18n("Repository"))
               + QString("<a href=\"%1\">%2</a><br>")
                     .arg(QString(BUGTRACKER))
                     .arg(i18n("Bugtracker"))
               + QString("<a href=\"%1\">%2</a><br>")
                     .arg(QString(TRANSLATION))
                     .arg(i18n("Translation issue"))
               + QString("<a href=\"%1\">%2</a><br>")
                     .arg(QString(AUR_PACKAGES))
                     .arg(i18n("AUR packages"))
               + QString("<a href=\"%1\">%2</a>")
                     .arg(QString(OPENSUSE_PACKAGES))
                     .arg(i18n("openSUSE packages"));
    } else if (type == QString("copy")) {
        text = QString("<small>&copy; %1 <a href=\"mailto:%2\">%3</a><br>")
                   .arg(QString(DATE))
                   .arg(QString(EMAIL))
                   .arg(QString(AUTHOR))
               + i18n("This software is licensed under %1", QString(LICENSE))
               + QString("</small>");
    } else if (type == QString("translators")) {
        text = i18n("Translators: %1", QString(TRANSLATORS));
    } else if (type == QString("3rdparty")) {
        QStringList trdPartyList
            = QString(TRDPARTY_LICENSE)
                  .split(QChar(';'), QString::SkipEmptyParts);
        for (int i = 0; i < trdPartyList.count(); i++)
            trdPartyList[i] = QString("<a href=\"%3\">%1</a> (%2 license)")
                                  .arg(trdPartyList.at(i).split(QChar(','))[0])
                                  .arg(trdPartyList.at(i).split(QChar(','))[1])
                                  .arg(trdPartyList.at(i).split(QChar(','))[2]);
        text = i18n("This software uses: %1", trdPartyList.join(QString(", ")));
    }

    return text;
}


QVariantMap AWActions::getFont(const QVariantMap defaultFont) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Default font is" << defaultFont;

    QVariantMap fontMap;
    CFont defaultCFont = CFont(defaultFont[QString("family")].toString(),
                               defaultFont[QString("size")].toInt(), 400, false,
                               defaultFont[QString("color")].toString());
    CFont font
        = CFontDialog::getFont(i18n("Select font"), defaultCFont, false, false);
    fontMap[QString("color")] = font.color().name();
    fontMap[QString("family")] = font.family();
    fontMap[QString("size")] = font.pointSize();

    return fontMap;
}


// to avoid additional object definition this method is static
void AWActions::sendNotification(const QString eventId, const QString message)
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Event" << eventId;
    qCDebug(LOG_AW) << "Message" << message;

    KNotification *notification = KNotification::event(
        eventId, QString("Awesome Widget ::: %1").arg(eventId), message);
    notification->setComponentName(
        QString("plasma-applet-org.kde.plasma.awesome-widget"));
}


void AWActions::showInfo(const QString version) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Version" << version;

    QString text = i18n("You are using the actual version %1", version);
    if (!QString(COMMIT_SHA).isEmpty())
        text += QString(" (%1)").arg(QString(COMMIT_SHA));
    QMessageBox::information(nullptr, i18n("No new version found"), text);
}


void AWActions::showUpdates(const QString version) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Version" << version;

    QString text;
    text += i18n("Current version : %1", QString(VERSION));
    text += QString(COMMIT_SHA).isEmpty()
                ? QString("\n")
                : QString(" (%1)\n").arg(QString(COMMIT_SHA));
    text += i18n("New version : %1", version) + QString("\n\n");
    text += i18n("Click \"Ok\" to download");

    int select
        = QMessageBox::information(nullptr, i18n("There are updates"), text,
                                   QMessageBox::Ok | QMessageBox::Cancel);
    switch (select) {
    case QMessageBox::Ok:
        QDesktopServices::openUrl(QString(RELEASES) + version);
        break;
    case QMessageBox::Cancel:
    default:
        break;
    }
}


void AWActions::versionReplyRecieved(QNetworkReply *reply,
                                     const bool showAnyway) const
{
    qCDebug(LOG_AW);
    qCDebug(LOG_AW) << "Return code" << reply->error();
    qCDebug(LOG_AW) << "Reply error message" << reply->errorString();
    qCDebug(LOG_AW) << "Show anyway" << showAnyway;

    QJsonParseError error;
    QJsonDocument jsonDoc = QJsonDocument::fromJson(reply->readAll(), &error);
    reply->deleteLater();
    if ((reply->error() != QNetworkReply::NoError)
        || (error.error != QJsonParseError::NoError)) {
        qCWarning(LOG_AW) << "Parse error" << error.errorString();
        return;
    }

    // convert to map
    QVariantMap firstRelease = jsonDoc.toVariant().toList().first().toMap();
    QString version = firstRelease[QString("tag_name")].toString();
    version.remove(QString("V."));
    qCInfo(LOG_AW) << "Found version" << version;

    // FIXME: possible there is a better way to check versions
    int old_major = QString(VERSION).split(QChar('.')).at(0).toInt();
    int old_minor = QString(VERSION).split(QChar('.')).at(1).toInt();
    int old_patch = QString(VERSION).split(QChar('.')).at(2).toInt();
    int new_major = QString(version).split(QChar('.')).at(0).toInt();
    int new_minor = QString(version).split(QChar('.')).at(1).toInt();
    int new_patch = QString(version).split(QChar('.')).at(2).toInt();
    if ((old_major < new_major)
        || ((old_major == new_major) && (old_minor < new_minor))
        || ((old_major == new_major) && (old_minor == new_minor)
            && (old_patch < new_patch)))
        return showUpdates(version);
    else if (showAnyway)
        return showInfo(version);
}