#include "Ogre.h"

using namespace Ogre;

enum SceneScriptSection
{
	SSS_NONE,
	SSS_MESH,
	SSS_ENTITY		
};

struct SceneScriptContext 
{
	SceneScriptSection section;
	size_t lineNo;
	String filename;
	SceneManager* sceneManager;
	String entityName;
	String meshName;
	Entity* entity;
	SceneNode* sceneNode;
	std::map<String, String> meshFiles;	
};

typedef bool (*SCENE_ATTRIBUTE_PARSER)(String& params, SceneScriptContext& context);

class SceneSerializer
{
protected:
	/// Keyword-mapped attribute parsers.
    typedef std::map<String, SCENE_ATTRIBUTE_PARSER> AttribParserList;

	SceneScriptContext mScriptContext;
	/** internal method for parsing a material
       @returns true if it expects the next line to be a {
    */
    bool parseScriptLine(String& line);
	/** internal method for finding & invoking an attribute parser. */
    bool invokeParser(String& line, AttribParserList& parsers);

	/// Parsers for the root of the material script
    AttribParserList mRootAttribParsers;
    /// Parsers for the material section of a script
    AttribParserList mMeshAttribParsers;
    /// Parsers for the technique section of a script
    AttribParserList mEntityAttribParsers;

public:

	SceneSerializer(SceneManager* sm);
	void parseScript(DataStreamPtr& stream, const String& groupName);

};