#include "qnapisy24engine.h"
#include <QNetworkRequest>
#include <QNetworkReply>

QNapisy24Engine::QNapisy24Engine(const QString & movieFile, const QString & subtitlesFile)
    : QNapiAbstractEngine(movieFile, subtitlesFile)
{
    p7zipPath = GlobalConfig().p7zipPath();
    lang = GlobalConfig().language();
    noBackup = GlobalConfig().noBackup();
    tmpPackedFile =  QString("%1/%2").arg(tmpPath).arg(generateTmpFileName());
}

QNapisy24Engine::~QNapisy24Engine()
{
    cleanup();
}

QString QNapisy24Engine::engineName()
{
    return "Napisy24";
}

QString QNapisy24Engine::engineInfo()
{
    return "Modul pobierania napisów z bazy <b>www.napisy24.pl</b><br />";
}

QIcon QNapisy24Engine::engineIcon()
{
    static const char *icon[] = {
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    ".  c #FFFFFF",
    "X  c #FFFFFF",
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    "y  c #FBFBFB",
    "u  c #FBFBFB",
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    "p  c #FBFBFB",
    "a  c #FBFBFB",
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    "z  c #FFFFFF",
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    "b  c #FBFBFB",
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    "F  c #FFFFFF",
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    "I  c #FAFCF9",
    "U  c #F9FBFA",
    "Y  c #FFFFFD",
    "T  c #FFFFFC",
    "R  c #F4F7F6",
    "E  c #F7F9F6",
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    "`  c #FAFDFF",
    "'  c #F9FCFF",
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    "[  c #C0D6E8",
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    "-X c #F4F6F5",
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    ":X c #F4F6F5",
    ">X c #F5F7F6",
    ",X c #F2F4F4",
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    "1X c #EBEDF0",
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    "uX c #F2F3F5",
    "iX c #F3F5F6",
    "pX c #F2F4F3",
    "aX c #F5F6F6",
    "sX c #FFFFFF",
    "dX c #FFFFFF",
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    "lX c #FEFFFF",
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    "bX c #FFFFFF",
    "nX c #FFFFFF",
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    "MX c #FFFFFF",
    "NX c #FFFFFF",
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    "KX c #FFFFFF",
    "LX c #FFFFFF",
    "PX c #FFFFFF",
    "IX c #FFFFFF",
    "UX c #FFFFFF",
    /* pixels */
    "  . X o O + @ # $ % & * = - ; : ",
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    "r t y u i p a s d f g h j k l z ",
    "x c v b n m M N B V C Z A S D F ",
    "G H J K L P I U Y T R E W Q ! ~ ",
    "^ / ( ) _ ` ' ] [ { } |  ...X.o.",
    "O.+.@.#.$.%.&.*.=.-.;.:.>.,.<.1.",
    "2.3.4.5.6.7.8.9.0.q.w.e.r.t.y.u.",
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    };

    return QIcon(QPixmap(icon));
}


bool QNapisy24Engine::isConfigurable()
{
    return false;
}

void QNapisy24Engine::configure(QWidget * parent)
{
    Q_UNUSED(parent);
}

QString QNapisy24Engine::checksum(QString filename)
{
    if(filename.isEmpty())
        filename = movie;

    QFile file(filename);
    if(!file.open(QIODevice::ReadOnly))
        return QString("");

    fileSize = file.size();
    QFileInfo fileInfo(file.fileName());
    fileName = fileInfo.fileName();
    quint64 hash = fileSize;
    quint64 tmp, i;

    for(tmp = 0, i = 0; i < 65536/sizeof(tmp) && file.read((char*)&tmp, sizeof(tmp)); i++, hash += tmp) ;
    file.seek(qMax(0, (int)((qint64)fileSize - 65536)));
    for(tmp = 0, i = 0; i < 65536/sizeof(tmp) && file.read((char*)&tmp, sizeof(tmp)); i++, hash += tmp) ;

    return (checkSum = QString("%1").arg(hash, 16, 16, QChar('0')));
}

bool QNapisy24Engine::lookForSubtitles(QString lang)
{
    subtitlesList.clear();
    const QUrl url = QUrl("http://napisy24.pl/run/CheckSubAgent.php");

    QUrlQuery params(url);
    params.addQueryItem("postAction", "CheckSub");
    params.addQueryItem("ua", "tantalosus");
    params.addQueryItem("ap", "susolatnat");
    params.addQueryItem("fh", checkSum);
    params.addQueryItem("fs", QString::number(fileSize));
    params.addQueryItem("fn", fileName);
    params.addQueryItem("nl", lang); // TODO: Add napiprojekt checksum
    QByteArray data = params.query().toUtf8();

    SyncHTTP http;
    QNetworkRequest req(url);
    req.setHeader(QNetworkRequest::ContentTypeHeader, "application/x-www-form-urlencoded");

    QNetworkReply *reply = http.syncPost(req, data);
    if(reply->error() != QNetworkReply::NoError)
        return false;

    QByteArray respData = reply->readAll();
    if (!respData.startsWith("OK-2"))
        return false;

    QFile file(tmpPackedFile);
    if(file.exists()) file.remove();
    if(!file.open(QIODevice::WriteOnly))
        return false;

    int r = file.write(respData.mid(respData.indexOf("||")+2));
    file.close();
    if (!r)
        return false;

    subtitlesList << QNapiSubtitleInfo( lang,
                                        engineName(),
                                        tmpPackedFile,
                                        QFileInfo(movie).completeBaseName(),
                                        "",
                                        "txt",
                                        SUBTITLE_UNKNOWN);

    return (subtitlesList.size() > 0);
}

QList<QNapiSubtitleInfo> QNapisy24Engine::listSubtitles()
{
    return subtitlesList;
}

bool QNapisy24Engine::download(int idx)
{
    Q_UNUSED(idx);
    return (subtitlesList.size() > 0);
}

bool QNapisy24Engine::unpack()
{
    if(!QFile::exists(tmpPackedFile)) return false;
    if(!QFile::exists(movie)) return false;

    QProcess p7zip;

    p7zip.start(p7zipPath, QStringList() << "l" << "-slt" << tmpPackedFile);
    if (!p7zip.waitForFinished(5000))
        return false;

    QString resp = QByteArray(p7zip.readAll());
#ifdef Q_OS_WIN
    QRegExp r("\r\nPath = ([^\r\n]*)\r\n");
#else
    QRegExp r("\nPath = ([^\n]*)\n");
#endif
    r.setPatternSyntax(QRegExp::RegExp2);

    if (r.lastIndexIn(resp) == -1)
        return false;

    QString subFileName = r.cap(1);

    subtitlesTmp = tmpPath + "/" + subFileName;
    if(QFile::exists(subtitlesTmp))
        QFile::remove(subtitlesTmp);

    QStringList args;
    args << "e" << "-y" << ("-o" + tmpPath) << tmpPackedFile;

    p7zip.start(p7zipPath, args);

    // Rozpakowujemy napisy max w ciagu 5 sekund
    if(!p7zip.waitForFinished(5000)) return false;
    return QFile::exists(subtitlesTmp);
}

void QNapisy24Engine::cleanup()
{
    if(QFile::exists(tmpPackedFile))
        QFile::remove(tmpPackedFile);
    if(QFile::exists(subtitlesTmp))
        QFile::remove(subtitlesTmp);
}