// pages.hpp - Base classes for page manager of GUI

#ifndef _PAGES_HEADER_HPP
#define _PAGES_HEADER_HPP

typedef struct {
	unsigned char red;
	unsigned char green;
	unsigned char blue;
	unsigned char alpha;
} COLOR;

// Utility Functions
int ConvertStrToColor(std::string str, COLOR* color);
int gui_forceRender(void);
int gui_changePage(std::string newPage);
int gui_changeOverlay(std::string newPage);
std::string gui_parse_text(string inText);

class Resource;
class ResourceManager;
class RenderObject;
class ActionObject;
class InputObject;

class Page
{
public:
	virtual ~Page() {}

public:
	Page(xml_node<>* page, xml_node<>* templates = NULL);
	std::string GetName(void)   { return mName; }

public:
	virtual int Render(void);
	virtual int Update(void);
	virtual int NotifyTouch(TOUCH_STATE state, int x, int y);
	virtual int NotifyKey(int key);
	virtual int NotifyKeyboard(int key);
	virtual int SetKeyBoardFocus(int inFocus);
	virtual int NotifyVarChange(std::string varName, std::string value);
	virtual void SetPageFocus(int inFocus);

protected:
	std::string mName;
	std::vector<RenderObject*> mRenders;
	std::vector<ActionObject*> mActions;
	std::vector<InputObject*> mInputs;

	ActionObject* mTouchStart;
	COLOR mBackground;

protected:
	bool ProcessNode(xml_node<>* page, xml_node<>* templates = NULL, int depth = 0);
};

class PageSet
{
public:
	PageSet(char* xmlFile);
	virtual ~PageSet();

public:
	int Load(ZipArchive* package);

	Page* FindPage(std::string name);
	int SetPage(std::string page);
	int SetOverlay(Page* page);
	Resource* FindResource(std::string name);

	// Helper routine for identifing if we're the current page
	int IsCurrentPage(Page* page);

	// These are routing routines
	int Render(void);
	int Update(void);
	int NotifyTouch(TOUCH_STATE state, int x, int y);
	int NotifyKey(int key);
	int NotifyKeyboard(int key);
	int SetKeyBoardFocus(int inFocus);
	int NotifyVarChange(std::string varName, std::string value);

protected:
	int LoadPages(xml_node<>* pages, xml_node<>* templates = NULL);
	int LoadVariables(xml_node<>* vars);

protected:
	char* mXmlFile;
	xml_document<> mDoc;
	ResourceManager* mResources;
	std::vector<Page*> mPages;
	Page* mCurrentPage;
	Page* mOverlayPage; // This is a special case, used for "locking" the screen
};

class PageManager
{
public:
	// Used by GUI
	static int LoadPackage(std::string name, std::string package, std::string startpage);
	static PageSet* SelectPackage(std::string name);
	static int ReloadPackage(std::string name, std::string package);
	static void ReleasePackage(std::string name);

	// Used for actions and pages
	static int ChangePage(std::string name);
	static int ChangeOverlay(std::string name);
	static Resource* FindResource(std::string name);
	static Resource* FindResource(std::string package, std::string name);

	// Used for console-only mode - Can be reverted via ChangePage
	static int SwitchToConsole(void);

	// Helper to identify if a particular page is the active page
	static int IsCurrentPage(Page* page);

	// These are routing routines
	static int Render(void);
	static int Update(void);
	static int NotifyTouch(TOUCH_STATE state, int x, int y);
	static int NotifyKey(int key);
	static int NotifyKeyboard(int key);
	static int SetKeyBoardFocus(int inFocus);
	static int NotifyVarChange(std::string varName, std::string value);

protected:
	static PageSet* FindPackage(std::string name);

protected:
	static std::map<std::string, PageSet*> mPageSets;
	static PageSet* mCurrentSet;
	static PageSet* mBaseSet;
};

#endif  // _PAGES_HEADER_HPP