#include <QApplication>
#include <QDateTime>
#include <QDir>
#include <QStandardPaths>

#include "gui/MainWindow.h"
#include "core/Logger.h"

// Redirect Qt log output to file logger.
void messageHandler(QtMsgType type, const QMessageLogContext &context, const QString &msg)
{
    Q_UNUSED(context);
    Logger *logger = Logger::instance();

    switch (type) {
    case QtDebugMsg:
        logger->debug(msg);
        break;
    case QtInfoMsg:
        logger->info(msg);
        break;
    case QtWarningMsg:
        logger->warning(msg);
        break;
    case QtCriticalMsg:
    case QtFatalMsg:
        logger->error(msg);
        break;
    }
}

int main(int argc, char *argv[])
{
    QApplication app(argc, argv);

    app.setOrganizationName("Viewer");
    app.setApplicationName("Viewer");
    app.setApplicationVersion("0.3.3");

    // Prefer LocalAppData so MSI installs under Program Files can always write logs.
    QString logDir = QStandardPaths::writableLocation(QStandardPaths::AppLocalDataLocation);
    if (logDir.isEmpty()) {
        logDir = QCoreApplication::applicationDirPath();
    }
    QDir().mkpath(logDir);

    const QString logPath = QDir(logDir).filePath("viewer.log");
    Logger::instance()->setLogFile(logPath);
    Logger::instance()->setMaxLines(10000);

    qInstallMessageHandler(messageHandler);

    qDebug() << "Viewer started";
    qDebug() << "Log file:" << logPath;

    MainWindow mainWindow;
    mainWindow.show();

    const int result = app.exec();

    qDebug() << "Viewer exiting";

    return result;
}