sneedmc/api/logic/BaseInstanceProvider.h

#pragma once

#include <QObject>
#include <QString>
#include "BaseInstance.h"
#include "settings/SettingsObject.h"

#include "multimc_logic_export.h"

using InstanceId = QString;
using InstanceLocator = std::pair<InstancePtr, int>;

enum class InstCreateError
{
    NoCreateError = 0,
    NoSuchVersion,
    UnknownCreateError,
    InstExists,
    CantCreateDir
};

class MULTIMC_LOGIC_EXPORT BaseInstanceProvider : public QObject
{
    Q_OBJECT
public:
    BaseInstanceProvider(SettingsObjectPtr settings) : m_globalSettings(settings)
    {
        // nil
    }
public:
    virtual QList<InstanceId> discoverInstances() = 0;
    virtual InstancePtr loadInstance(const InstanceId &id) = 0;
    virtual void loadGroupList() = 0;
    virtual void saveGroupList() = 0;

    virtual QString getStagedInstancePath()
    {
        return QString();
    }
    virtual bool commitStagedInstance(const QString & path, const QString& instanceName, const QString & groupName)
    {
        return false;
    }
    virtual bool destroyStagingPath(const QString & path)
    {
        return true;
    }

signals:
    // Emit this when the list of provided instances changed
    void instancesChanged();
    // Emit when the set of groups your provider supplies changes.
    void groupsChanged(QSet<QString> groups);

protected:
    SettingsObjectPtr m_globalSettings;
};