/*
 * This file is part of smolbote. It's copyrighted by the contributors recorded
 * in the version control history of the file, available from its original
 * location: https://neueland.iserlohn-fortress.net/gitea/aqua/smolbote
 *
 * SPDX-License-Identifier: GPL-3.0
 */

#include <QPluginLoader>

class PluginLoader : public QPluginLoader
{
    Q_OBJECT

public:
    enum VerifyState {
        // uninitialized state
        SignatureUnverified = -1,

        // signature is optional, match is optional
        SignatureCheckIfAvailable = 1,

        SignatureComputeFailed = 2,     // error computing signature
        SignatureMismatched = 3,        // signature does not match
        
        // signature is optional, match is required
        SignatureMatchIfAvailable = 4,

        SignatureMissing = 5,           // signature is not available

        // signature required, match is required
        SignatureMatchRequired = 10,

        SignatureMatched = 20           // signature is matched
    };

    PluginLoader(const QString &fileName, const VerifyState sigLevel = SignatureMissing, QObject *parent = nullptr);
    ~PluginLoader() = default;

    QString errorString() const
    {
        if(signature < requiredSignatureLevel)
            return QString("Required signature level: %2; Signature level: %3").arg(QString::number((int) requiredSignatureLevel), QString::number((int) signature));
        else
            return QPluginLoader::errorString();
    }

    VerifyState verify(const char *hashName = "SHA256") const;
    //bool load();

private:
    const VerifyState requiredSignatureLevel;
    VerifyState signature = SignatureUnverified;
};