#ifndef TCPCONTROLLER_H
#define TCPCONTROLLER_H

#include <QDir>
#include <QMap>
#include <QObject>
#include <QTcpSocket>
#include <functional>

using Routes = QMap<QString, std::function<void(QTcpSocket*)>>;

class TcpController : public QObject {
    Q_OBJECT
public:
    TcpController(QObject* parent = nullptr);
    Routes getRoutes();

private:
    Routes routes;
    void setIpaddr(QTcpSocket* socket);
    void setName(QTcpSocket* socket);
    void getName(QTcpSocket* socket);
    void setVideoEnc(QTcpSocket* socket);
    void getVideoEnc(QTcpSocket* socket);
    void getFileList(QTcpSocket* socket);
    void deleteFile(QTcpSocket* socket);

    static QString writeCom(const QString& com);
    inline QVariantMap parseParams(QTcpSocket* socket);
    inline QList<QString> listFile(QString path);
};

/**
 * @brief parse tcp request params
 * @param socket
 * @return
 */
inline QVariantMap TcpController::parseParams(QTcpSocket* socket)
{
    QVariantMap params;
    // exmaple:data1=xxx\r\ndata2=xxx\r\n...
    QStringList data = QString(socket->readAll()).split("\r\n");

    for (int i = 0; i < data.length(); i++) {
        if (data.at(i).contains("=")) {
            QStringList pair = data.at(i).split("=");
            params.insert(pair[0], pair[1]);
        }
    }
    return params;
}

/**
 * @brief list all .mp4 file in the folder
 * @param path
 * @return
 */
inline QList<QString> TcpController::listFile(QString path)
{
    QStringList fileList;
    QDir dir(path);
    if (!dir.exists()) {
        qDebug() << "folder " << path << " dont exists";
        return fileList;
    }
    dir.setFilter(QDir::Files);
    dir.setSorting(QDir::Name);
    QStringList nameFilters;
    nameFilters << "*.mp4"
                << "*.jpg";
    dir.setNameFilters(nameFilters);
    fileList = dir.entryList();
    return fileList;
}

#endif // TCPCONTROLLER_H