#ifndef RESOURCEEXPLORER_H
#define RESOURCEEXPLORER_H

#include <QMainWindow>

#include <QString>
#include <QStringRef>

namespace Ui {
	class ResourceExplorer;
}

class QTreeWidgetItem;

class ResourceExplorer : public QMainWindow {
	Q_OBJECT

public:
	explicit ResourceExplorer(QWidget *parent = nullptr);
	~ResourceExplorer();

private slots:
	void extractButtonPressed();
	void itemSelected(QTreeWidgetItem*);

private:
	struct MemoryMap {
		const unsigned char* begin;
		const unsigned char* end;
		QString path;
	};

	enum ResourceFlags {
		NoFlags = 0,
		Compressed = 1,
		Directory = 2
	};

	struct ResourceNode {
		~ResourceNode();

		QString name;
		ResourceFlags flags;
		uint32_t size;
		const unsigned char* start;
		uint16_t country;
		uint16_t language;
		uint64_t lastModTimeMS;
		uint32_t hash;
		std::vector<ResourceNode*> children;

		bool isDir() const;
		bool isCompressed() const;
	};

	using data = const unsigned char*;

	void rebuild();
	std::vector<MemoryMap> readMemoryMaps();
	std::vector<ResourceExplorer::ResourceNode*> parseResource(int version, data library, data names, data data );

	QTreeWidgetItem* resourceNodeToItem(ResourceNode* node, const QString& path );
	static QString approxFileSize( uint64_t size );

	Ui::ResourceExplorer *ui;
};

#endif // RESOURCEEXPLORER_H