#include "../sdk.h"
#include "../tier1/UtlVector.hpp"
struct characterset_t
{
	char set[256];
};
class ConCommandBase
{
	friend class CCvar;
	friend class ConCommand;

protected:
	ConCommandBase(void);
public:

	~ConCommandBase(void);
	// Check flag
	bool				IsFlagSet(int64_t flag) const;
	// Set flag
	void				AddFlags(int64_t flags);
	// Clear flag
	void				RemoveFlags(int64_t flags);

	int64_t				GetFlags() const;

	// Return name of cvar
	const char* GetName(void) const;

	// Return help text for cvar
	const char* GetHelpText(void) const;

private:
	// Static data
	const char* m_pszName;
	const char* m_pszHelpString;

	// ConVar flags
	int64_t	m_nFlags;
};

template< class T, size_t SIZE, class I = int >
class CUtlMemoryFixedGrowable : public CUtlMemory< T, I >
{
	typedef CUtlMemory< T, I > BaseClass;

public:
	CUtlMemoryFixedGrowable(int nGrowSize = 0, int nInitSize = SIZE) : BaseClass(m_pFixedMemory, SIZE)
	{
		Assert(nInitSize == 0 || nInitSize == SIZE);
	}

	void EnsureCapacity(int num)
	{
		if (CUtlMemory<T>::m_nAllocationCount >= num)
			return;

		BaseClass::EnsureCapacity(num);
	}

private:
	T m_pFixedMemory[SIZE];
};

template< class T, size_t MAX_SIZE >
class CUtlVectorFixedGrowable : public CUtlVector< T, CUtlMemoryFixedGrowable<T, MAX_SIZE > >
{
	typedef CUtlVector< T, CUtlMemoryFixedGrowable<T, MAX_SIZE > > BaseClass;

public:
	// constructor, destructor
	CUtlVectorFixedGrowable(int growSize = 0) : BaseClass(growSize, MAX_SIZE) {}
};


class CCommand
{
public:
	CCommand();
	CCommand(int nArgC, const char** ppArgV);
	virtual bool Tokenize(const char* pCommand, characterset_t* pBreakSet = NULL);
	virtual void Reset();

	int ArgC() const {
		return m_Args.Count();
	}
	const char** ArgV() const;
	const char* ArgS() const;					// All args that occur after the 0th arg, in string form
	const char* GetCommandString() const
	{
		return ArgC() ? m_ArgSBuffer.Base() : "";
	}
	const char* operator[](int nIndex) const;	// Gets at arguments
	const char* Arg(int nIndex) const {
		// FIXME: Many command handlers appear to not be particularly careful
		// about checking for valid argc range. For now, we're going to
		// do the extra check and return an empty string if it's out of range
		if (nIndex < 0 || nIndex >= ArgC())
			return "";
		return m_Args[nIndex];

	}

	// Helper functions to parse arguments to commands.
	// 
	// Returns index of argument, or -1 if no such argument.
	int FindArg(const char* pName) const;

	int FindArgInt(const char* pName, int nDefaultVal) const;

	static int MaxCommandLength()
	{
		return COMMAND_MAX_LENGTH - 1;
	}
	static characterset_t* DefaultBreakSet();

private:
	enum
	{
		COMMAND_MAX_ARGC = 64,
		COMMAND_MAX_LENGTH = 512,
	};

	int m_nArgv0Size;
	CUtlVectorFixedGrowable<char, COMMAND_MAX_LENGTH> m_ArgSBuffer;
	CUtlVectorFixedGrowable<char, COMMAND_MAX_LENGTH> m_ArgvBuffer;
	CUtlVectorFixedGrowable<char*, COMMAND_MAX_ARGC> m_Args;
};