//=============================================================================//
//
// Purpose: Squirrel API interface to engine
//
//=============================================================================//

#include "core/stdafx.h"
#include "squirrel.h"
#include "sqvm.h"
#include "sqarray.h"
#include "sqstring.h"

//---------------------------------------------------------------------------------
bool sq_aux_gettypedarg(HSQUIRRELVM v, SQInteger idx, SQObjectType type, SQObjectPtr** o)
{
	*o = &stack_get(v, idx);
	if (sq_type(**o) != type) {
		SQObjectPtr oval;
		v->PrintObjVal(*o, &oval);
		v_SQVM_RaiseError(v, _SC("wrong argument type, expected '%s' got '%.50s'"), IdType2Name(type), _stringval(oval));
		return false;
	}
	return true;
}

//---------------------------------------------------------------------------------
#define _GETSAFE_OBJ(v,idx,type,o) { if(!sq_aux_gettypedarg(v,idx,type,&o)) return SQ_ERROR; }

#define sq_aux_paramscheck(v,count) \
{ \
	if(sq_gettop(v) < count){ v_SQVM_RaiseError(v, _SC("not enough params in the stack")); return SQ_ERROR; }\
}

//---------------------------------------------------------------------------------
SQRESULT sq_getinteger(HSQUIRRELVM v, SQInteger idx, SQInteger* i)
{
	SQObjectPtr& o = stack_get(v, idx);
	if (sq_isnumeric(o)) {
		*i = tointeger(o);
		return SQ_OK;
	}
	return SQ_ERROR;
}

//---------------------------------------------------------------------------------
SQRESULT sq_getfloat(HSQUIRRELVM v, SQInteger idx, SQFloat* f)
{
	SQObjectPtr& o = stack_get(v, idx);
	if (sq_isnumeric(o)) {
		*f = tofloat(o);
		return SQ_OK;
	}
	return SQ_ERROR;
}

//---------------------------------------------------------------------------------
SQRESULT sq_getbool(HSQUIRRELVM v, SQInteger idx, SQBool* b)
{
	SQObjectPtr& o = stack_get(v, idx);
	if (sq_isbool(o)) {
		*b = _integer(o);
		return SQ_OK;
	}
	return SQ_ERROR;
}

//---------------------------------------------------------------------------------
SQRESULT sq_getthread(HSQUIRRELVM v, SQInteger idx, HSQUIRRELVM* thread)
{
	SQObjectPtr* o = NULL;
	_GETSAFE_OBJ(v, idx, OT_THREAD, o);
	*thread = _thread(*o);
	return SQ_OK;
}

//---------------------------------------------------------------------------------
SQRESULT sq_getstring(HSQUIRRELVM v, SQInteger idx, const SQChar** c)
{
	SQObjectPtr* o = NULL;
	_GETSAFE_OBJ(v, idx, OT_STRING, o);
	*c = _stringval(*o);
	return SQ_OK;
}

//---------------------------------------------------------------------------------
SQRESULT sq_get(HSQUIRRELVM v, SQInteger idx)
{
	return v_sq_get(v, idx);
}

//---------------------------------------------------------------------------------
SQInteger sq_gettop(HSQUIRRELVM v)
{
	return (v->_top - v->_bottom);
}

//---------------------------------------------------------------------------------
SQRESULT sq_pushroottable(HSQUIRRELVM v)
{
	v->Push(v->_roottable);

	return SQ_OK;
}

//---------------------------------------------------------------------------------
void sq_pushbool(HSQUIRRELVM v, SQBool b)
{
	v->Push(b?true:false);
}

//---------------------------------------------------------------------------------
void sq_pushstring(HSQUIRRELVM v, const SQChar* s, SQInteger len)
{
	if (s)
	{
		SQString* pString = SQString::Create(v->_sharedstate, s, len);
		v->Push(pString);
	}
	else
		v->Push(_null_);
}

//---------------------------------------------------------------------------------
void sq_pushinteger(HSQUIRRELVM v, SQInteger val)
{
	v->Push(val);
}

//---------------------------------------------------------------------------------
void sq_pushfloat(HSQUIRRELVM v, SQFloat n)
{
	v->Push(n);
}

//---------------------------------------------------------------------------------
void sq_newarray(HSQUIRRELVM v, SQInteger size)
{
	v_sq_newarray(v, size);
}

//---------------------------------------------------------------------------------
void sq_newtable(HSQUIRRELVM v)
{
	v_sq_newtable(v);
}

//---------------------------------------------------------------------------------
SQRESULT sq_newslot(HSQUIRRELVM v, SQInteger idx)
{
	return v_sq_newslot(v, idx);
}

//---------------------------------------------------------------------------------
SQRESULT sq_arrayappend(HSQUIRRELVM v, SQInteger idx)
{
	return v_sq_arrayappend(v, idx);
}

//---------------------------------------------------------------------------------
SQRESULT sq_pushstructure(HSQUIRRELVM v, const SQChar* name, const SQChar* member, const SQChar* codeclass1, const SQChar* codeclass2)
{
	return v_sq_pushstructure(v, name, member, codeclass1, codeclass2);
}

//---------------------------------------------------------------------------------
SQRESULT sq_compilebuffer(HSQUIRRELVM v, SQBufState* bufferState, const SQChar* buffer, SQInteger level)
{
	return v_sq_compilebuffer(v, bufferState, buffer, level);
}

//---------------------------------------------------------------------------------
SQRESULT sq_call(HSQUIRRELVM v, SQInteger params, SQBool retval, SQBool raiseerror)
{
	return v_sq_call(v, params, retval, raiseerror);
}

SQRESULT sq_startconsttable(HSQUIRRELVM v)
{
	return v_sq_startconsttable(v);
}

SQRESULT sq_endconsttable(HSQUIRRELVM v)
{
	return v_sq_endconsttable(v);
}

void VSquirrelAPI::Detour(const bool bAttach) const
{
	DetourSetup(&v_sq_pushroottable, &sq_pushroottable, bAttach);
	//DetourSetup(&v_sq_pushbool, &sq_pushbool, bAttach);
	//DetourSetup(&v_sq_pushstring, &sq_pushstring, bAttach);
	//DetourSetup(&v_sq_pushinteger, &sq_pushinteger, bAttach);
	//DetourSetup(&v_sq_pushfloat, &sq_pushfloat, bAttach);
	DetourSetup(&v_sq_newarray, &sq_newarray, bAttach);
	DetourSetup(&v_sq_newtable, &sq_newtable, bAttach);
	DetourSetup(&v_sq_newslot, &sq_newslot, bAttach);
	DetourSetup(&v_sq_arrayappend, &sq_arrayappend, bAttach);
	DetourSetup(&v_sq_pushstructure, &sq_pushstructure, bAttach);
	DetourSetup(&v_sq_compilebuffer, &sq_compilebuffer, bAttach);
	DetourSetup(&v_sq_call, &sq_call, bAttach);

	DetourSetup(&v_sq_startconsttable, &sq_startconsttable, bAttach);
	DetourSetup(&v_sq_endconsttable, &sq_endconsttable, bAttach);
}