/*
 * Copyright (C) 2016 The Qt Company Ltd.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include <QtCore/QCommandLineParser>
#include <QtCore/QDebug>
#include <QtCore/QDir>
#include <QtCore/QStandardPaths>
#include <QtCore/QUrlQuery>
#include <QtGui/QGuiApplication>
#include <QtQml/QQmlApplicationEngine>
#include <QtQml/QQmlContext>
#include <QtQml/qqml.h>
#include <QtQuickControls2/QQuickStyle>

#ifdef HAVE_LIBHOMESCREEN
#include <libhomescreen.hpp>
#endif

#ifdef HAVE_DBUS
#include "dbus.h"
#endif

#include "playlistwithmetadata.h"

#ifndef HAVE_LIGHTMEDIASCANNER
QVariantList readMusicFile(const QString &path)
{
    QVariantList ret;
    QDir dir(path);
    for (const auto &entry : dir.entryList(QDir::Dirs | QDir::Files | QDir::NoDotAndDotDot, QDir::Name)) {
        QFileInfo fileInfo(dir.absoluteFilePath(entry));
        if (fileInfo.isDir()) {
            ret.append(readMusicFile(fileInfo.absoluteFilePath()));
        } else if (fileInfo.isFile()) {
            ret.append(QUrl::fromLocalFile(fileInfo.absoluteFilePath()));
        }
    }
    return ret;
}
#endif

int main(int argc, char *argv[])
{
#ifdef HAVE_LIBHOMESCREEN
    LibHomeScreen libHomeScreen;

    if (!libHomeScreen.renderAppToAreaAllowed(0, 1)) {
        qWarning() << "renderAppToAreaAllowed is denied";
        return -1;
    }
#endif

    QGuiApplication app(argc, argv);

    QQuickStyle::setStyle("AGL");

    qmlRegisterType<PlaylistWithMetadata>("MediaPlayer", 1, 0, "PlaylistWithMetadata");

    QQmlApplicationEngine engine;
    QQmlContext *context = engine.rootContext();

#ifndef HAVE_LIGHTMEDIASCANNER
    QVariantList mediaFiles;
    QString music;

    for (const auto &music : QStandardPaths::standardLocations(QStandardPaths::MusicLocation)) {
        mediaFiles.append(readMusicFile(music));
    }

    context->setContextProperty("mediaFiles", mediaFiles);
#endif

    QCommandLineParser parser;
    parser.addPositionalArgument("port", app.translate("main", "port for binding"));
    parser.addPositionalArgument("secret", app.translate("main", "secret for binding"));
    parser.addHelpOption();
    parser.addVersionOption();
    parser.process(app);
    QStringList positionalArguments = parser.positionalArguments();

    if (positionalArguments.length() == 2) {
        int port = positionalArguments.takeFirst().toInt();
        QString secret = positionalArguments.takeFirst();
        QUrl bindingAddress;
        bindingAddress.setScheme(QStringLiteral("ws"));
        bindingAddress.setHost(QStringLiteral("localhost"));
        bindingAddress.setPort(port);
        bindingAddress.setPath(QStringLiteral("/api"));
        QUrlQuery query;
        query.addQueryItem(QStringLiteral("token"), secret);
        bindingAddress.setQuery(query);
        context->setContextProperty(QStringLiteral("bindingAddress"), bindingAddress);
    }

#if defined(HAVE_DBUS)
    DbusService dbus_service;
    context->setContextProperty("dbus", &dbus_service);
#endif

    engine.load(QUrl(QStringLiteral("qrc:/MediaPlayer.qml")));

#if defined(HAVE_DBUS)
    if (!dbus_service.enableBluetooth())
       qWarning() << "Cannot run enableBluetooth";
#endif

    return app.exec();
}