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#include "qandroidmultimediautils.h"
#include "qandroidglobal.h"

#include <qlist.h>
#include <QtCore/private/qjni_p.h>
#include <QtCore/private/qjnihelpers_p.h>

QT_BEGIN_NAMESPACE

int qt_findClosestValue(const QList<int> &list, int value)
{
    if (list.size() < 2)
        return 0;

    int begin = 0;
    int end = list.size() - 1;
    int pivot = begin + (end - begin) / 2;
    int v = list.at(pivot);

    while (end - begin > 1) {
        if (value == v)
            return pivot;

        if (value > v)
            begin = pivot;
        else
            end = pivot;

        pivot = begin + (end - begin) / 2;
        v = list.at(pivot);
    }

    return value - v >= list.at(pivot + 1) - value ? pivot + 1 : pivot;
}

bool qt_sizeLessThan(const QSize &s1, const QSize &s2)
{
    return s1.width() * s1.height() < s2.width() * s2.height();
}

QVideoFrame::PixelFormat qt_pixelFormatFromAndroidImageFormat(AndroidCamera::ImageFormat f)
{
    switch (f) {
    case AndroidCamera::NV21:
        return QVideoFrame::Format_NV21;
    case AndroidCamera::YV12:
        return QVideoFrame::Format_YV12;
    case AndroidCamera::RGB565:
        return QVideoFrame::Format_RGB565;
    case AndroidCamera::YUY2:
        return QVideoFrame::Format_YUYV;
    case AndroidCamera::JPEG:
        return QVideoFrame::Format_Jpeg;
    default:
        return QVideoFrame::Format_Invalid;
    }
}

AndroidCamera::ImageFormat qt_androidImageFormatFromPixelFormat(QVideoFrame::PixelFormat f)
{
    switch (f) {
    case QVideoFrame::Format_NV21:
        return AndroidCamera::NV21;
    case QVideoFrame::Format_YV12:
        return AndroidCamera::YV12;
    case QVideoFrame::Format_RGB565:
        return AndroidCamera::RGB565;
    case QVideoFrame::Format_YUYV:
        return AndroidCamera::YUY2;
    case QVideoFrame::Format_Jpeg:
        return AndroidCamera::JPEG;
    default:
        return AndroidCamera::UnknownImageFormat;
    }
}

static bool androidRequestPermission(const QString &key)
{
    using namespace QtAndroidPrivate;

    if (androidSdkVersion() < 23)
        return true;

    PermissionsResult res = checkPermission(key);
    if (res == PermissionsResult::Granted) // Permission already granted?
        return true;

    QJNIEnvironmentPrivate env;
    const auto &results = requestPermissionsSync(env, QStringList() << key);
    if (!results.contains(key)) {
        qCWarning(qtAndroidMediaPlugin, "No permission found for key: %s", qPrintable(key));
        return false;
    }

    if (results[key] == PermissionsResult::Denied) {
        qCDebug(qtAndroidMediaPlugin, "%s - Permission denied by user!", qPrintable(key));
        return false;
    }

    return true;
}

bool qt_androidRequestCameraPermission()
{
    return androidRequestPermission(QLatin1String("android.permission.CAMERA"));
}

bool qt_androidRequestRecordingPermission()
{
    return androidRequestPermission(QLatin1String("android.permission.RECORD_AUDIO"));
}

QT_END_NAMESPACE