// system includes

#include <filesystem>

#include <map>

#include <regex>

#include <string>

// local includes

#include "linuxdeploy/log/log.h"

#include "linuxdeploy/plugin/exceptions.h"

#pragma once

namespace linuxdeploy {

namespace plugin {

enum PLUGIN_TYPE {

INPUT_TYPE = 0,

OUTPUT_TYPE,

};

/*

* Official regular expression to check filenames for plugins

*/

static const std::regex PLUGIN_EXPR(R"(^linuxdeploy-plugin-([^\s\.-]+)(?:-[^\.]+)?(?:\..+)?$)");

/*

* Plugin interface.

*/

class IPlugin {

// declare interface's constructors and destructor

protected:

explicit IPlugin(const std::filesystem::path& path) {};

// deconstructor apparently needs to be defined, not just declared (with = 0)

virtual ~IPlugin() = default;

public:

virtual std::filesystem::path path() const = 0;

virtual int apiLevel() const = 0;

virtual PLUGIN_TYPE pluginType() const = 0;

virtual std::string pluginTypeString() const = 0;

virtual int run(const std::filesystem::path& appDirPath) = 0;

};

/// Implementations are not public, see source directory for those headers ///

/*

* Factory function to create plugin from given executable.

* This function automatically selects the correct subclass implementing the right API level, and

*/

IPlugin* createPluginInstance(const std::filesystem::path& path);

/*

* Finds all linuxdeploy plugins in $PATH and the current executable's directory and returns IPlugin instances for them.

*/

std::map<std::string, IPlugin*> findPlugins();

}

}