#include "pathcheck.h"

QRegularExpression squawk("^squawk:\\/\\/");
QString Shared::downloadsPathCheck()
{
    QSettings settings;
    QVariant dpv = settings.value("downloadsPath");
    QString path;
    if (!dpv.isValid()) {
        path = defaultDownloadsPath();
        qDebug() << "no downloadsPath variable in config, using default" << path;
        path = getAbsoluteWritablePath(path);
        return path;
    } else {
        path = dpv.toString();
        path = getAbsoluteWritablePath(path);
        if (path.size() == 0) {
            path = defaultDownloadsPath();
            qDebug() << "falling back to the default downloads path" << path;
            path = getAbsoluteWritablePath(path);
        }
        return path;
    }
}

QString Shared::defaultDownloadsPath()
{
    return QStandardPaths::writableLocation(QStandardPaths::DownloadLocation) + "/" + QApplication::applicationName();
}

QString Shared::getAbsoluteWritablePath(const QString& path)
{
    QDir location(path);
    if (!location.exists()) {
        bool res = location.mkpath(location.absolutePath());
        if (!res) {
            qDebug() << "couldn't create directory" << path;
            return "";
        }
    }
    QFileInfo info(location.absolutePath());
    if (info.isWritable()) {
        return location.absolutePath();
    } else {
        qDebug() << "directory" << path << "is not writable";
        return "";
    }
}

QString Shared::resolvePath(QString path)
{
    QSettings settings;
    QVariant dpv = settings.value("downloadsPath");
    return path.replace(squawk, dpv.toString() + "/");
}