/*
 Copyright 2017 Herik Lima de Castro and Marcelo Medeiros Eler
 Distributed under MIT license, or public domain if desired and
 recognized in your jurisdiction.
 See file LICENSE for detail.
*/

#include "cppwebapplication.h"
#include "cppwebcontroller.h"
//  clazy:excludeall=qgetenv
CWF_BEGIN_NAMESPACE

QPair<QString, qint64> getFileAndMaxSize()
{
    QPair<QString, qlonglong> info;

    info.first = qgetenv(CONFIGURATION::CPP_LOG_VAR.toStdString().data());
    info.second = QByteArray(qgetenv(CONFIGURATION::CPP_LOG_MAX_VAR.toStdString().data())).toInt();

    if (info.second <= 0) {
        info.second = 20000000;
    }
    return info;
}

void writeLog(QtMsgType type, const QMessageLogContext &logContext, const QString &msg)
{
    QPair<QString, qint64> info(getFileAndMaxSize());
    QFile file(info.first);

    if (file.size() > info.second) {
        file.resize(0);
    }

    if (file.open(QIODevice::Append)) {
        QTextStream out(&file);
        QString date = QDateTime::currentDateTime().toString("dd/MM/yyyy hh:mm:ss:zzz");
        out << "Date: " << date;
        out << "\nCategory: " << logContext.category;
        out << "\nFile: " << logContext.file;
        out << "\nFunction: " << logContext.function;
        out << "\nVersion: " << logContext.version;
        out << "\nMessage: " << msg << "\n\n";

        if (type == QtFatalMsg) {
            out << "\nFATAL: SERVER OFFLINE\n\n";
            file.close();
            abort();
        }
        file.close();
    }
}

CppWebApplication::CppWebApplication(const QString &serverPath, Filter *filter)
    : configuration(serverPath)
{
    if (configuration.isValid()) {
        qunsetenv(CONFIGURATION::CPP_LOG_VAR.toStdString().data());
        qunsetenv(CONFIGURATION::CPP_LOG_MAX_VAR.toStdString().data());

        qputenv(CONFIGURATION::CPP_LOG_VAR.toStdString().data(),
                configuration.getLogFilePath().toUtf8());
        qputenv(CONFIGURATION::CPP_LOG_MAX_VAR.toStdString().data(),
                QByteArray::number(configuration.getMaxLogFile()));

        QPair<QString, qint64> info(getFileAndMaxSize());
        if (!QFile(info.first).exists()) {
            qDebug() << "Path not found to log file: " << configuration.getLogFilePath();
            qDebug() << "Note: Use only US-ASCII characters for the serverPath.";
        } else if (configuration.isValid()) {
            valid = true;
            //qInstallMessageHandler(writeLog);
            server = new CppWebServer(configuration, filter);

            if (configuration.getAccessServerPages()) {
                server->addController<CppWebController>("/example");
                server->addController<CppWebController>("/authors");
                server->addController<CppWebController>("/documentation");
                server->addController<CppWebController>("/ssl");
                server->addController<CppWebController>("/index");
            }
        }
    } else {
        qDebug() << "CPPWeb.ini not found. Please copy the CWF server folder to your project.";
    }
}

CppWebApplication::~CppWebApplication()
{
    if (!server)
        delete server;
}

int CppWebApplication::start()
{
    return start(configuration.getHost(), configuration.getPort());
}

int CppWebApplication::start(const QHostAddress &host, const int &port)
{
    if (!server->listen(host, port)) {
        qDebug() << "Error: " << server->errorString() << "\n";
        qDebug() << "Host: " << host;
        qDebug() << "Port: " << port;
        qDebug() << "Server offline\n";
        return -1;
    }

    qDebug() << "Server online\n";
    qDebug() << "Host: " << host;
    qDebug() << "Port: " << port;
    qDebug() << "LogFilePath: " << configuration.getLogFilePath();
    return 1;
}

bool CppWebApplication::close()
{
    if (server) {
        server->close();
        return true;
    }
    return false;
}

CWF_END_NAMESPACE