#include "../game/q_shared.h"
#include "../qcommon/qcommon.h"
#include "../client/client.h"
#include "win_local.h"
#include "resource.h"
#include <float.h>
#include <stdio.h>
#include "../game/g_public.h"

#ifdef _XBOX
#include <IO.h>
#define NEWDECL __cdecl

#ifndef FINAL_BUILD
#include "dbg_console_xbox.h"
#endif

#endif

extern int eventHead, eventTail;
extern sysEvent_t eventQue[MAX_QUED_EVENTS];
extern byte		sys_packetReceived[MAX_MSGLEN];

void *NEWDECL operator new(size_t size)
{
	return Z_Malloc(size, TAG_NEWDEL, qfalse);
}


void *NEWDECL operator new[](size_t size)
{
	return Z_Malloc(size, TAG_NEWDEL, qfalse);
}


void NEWDECL operator delete[](void *ptr)
{
	if (ptr)
		Z_Free(ptr);
}


void NEWDECL operator delete(void *ptr)
{
	if (ptr)
		Z_Free(ptr);
}

/*
================
Sys_Init

Called after the common systems (cvars, files, etc)
are initialized
================
*/
extern void Sys_In_Restart_f(void);
extern void Sys_Net_Restart_f(void);
void Sys_Init( void ) 
{
	Cmd_AddCommand ("in_restart", Sys_In_Restart_f);
	Cmd_AddCommand ("net_restart", Sys_Net_Restart_f);
}




char *Sys_Cwd( void ) {
	static char cwd[MAX_OSPATH];

#ifdef _XBOX
	strcpy(cwd, "d:");
#endif

#ifdef _GAMECUBE
	strcpy(cwd, ".");
#endif

	return cwd;
}

/*
=================
Sys_In_Restart_f

Restart the input subsystem
=================
*/
void Sys_In_Restart_f( void ) {
}



/*
=============
Sys_Error

Show the early console as an error dialog
=============
*/
void Sys_Error( const char *error, ... ) {
        va_list                argptr;
        char                text[256];

        va_start (argptr, error);
        vsprintf (text, error, argptr);
        va_end (argptr);

#ifdef _GAMECUBE
        printf(text);
#else
        OutputDebugString(text);
#endif

#if 0 // UN-PORT
        Com_ShutdownZoneMemory();
        Com_ShutdownHunkMemory();
#endif

        exit (1);
}


/*
================
Sys_GetEvent

================
*/
sysEvent_t Sys_GetEvent( void ) {
        sysEvent_t        ev;

        // return if we have data
        if ( eventHead > eventTail ) {
                eventTail++;
                return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
        }

        // check for network packets
        msg_t                netmsg;
        MSG_Init( &netmsg, sys_packetReceived, sizeof( sys_packetReceived ) );

        // return if we have data
        if ( eventHead > eventTail ) {
                eventTail++;
                return eventQue[ ( eventTail - 1 ) & MASK_QUED_EVENTS ];
        }

        // create an empty event to return
        memset( &ev, 0, sizeof( ev ) );
        ev.evTime = Sys_Milliseconds();

        return ev;
}


void Sys_Print(const char *msg)
{
#ifdef _GAMECUBE
	printf(msg);
#else
	OutputDebugString(msg);
#endif
}

/*
==============
Sys_Log
==============
*/
void Sys_Log( const char *file, const char *msg ) {
	Sys_Log(file, msg, strlen(msg), strchr(msg, '\n') ? true : false);
}

/*
==============
Sys_Log
==============
*/
void Sys_Log( const char *file, const void *buffer, int size, bool flush ) {
#ifndef FINAL_BUILD
	static bool unableToLog = false;

	// Once we've failed to write to the log files once, bail out.
	// This lets us put release builds on DVD without recompiling.
	if (unableToLog)
		return;

	struct FileInfo
	{
		char name[MAX_QPATH];
		FILE *handle;
	};

	const int LOG_MAX_FILES = 4;
	static FileInfo files[LOG_MAX_FILES];
	static int num_files = 0;

	FileInfo* cur = NULL;
	for (int f = 0; f < num_files; ++f)
	{
		if (!Q_stricmp(file, files[f].name))
		{
			cur = &files[f];
			break;
		}
	}

	if (cur == NULL)
	{
		if (num_files >= LOG_MAX_FILES)
		{
			Sys_Print("Too many log files!\n");
			return;
		}

		cur = &files[num_files++];
		strcpy(cur->name, file);
		cur->handle = NULL;
	}

	char fullname[MAX_QPATH];
	sprintf(fullname, "d:\\%s", cur->name);
	if (!cur->handle)
	{
		cur->handle = fopen(fullname, "wb");
		if (cur->handle == NULL)
		{
			Sys_Print("Unable to open log file!\n");
			unableToLog = true;
			return;
		}
	}

	if (size == 1) fputc(*(char*)buffer, cur->handle);
	else fwrite(buffer, size, 1, cur->handle);

	if (flush)
	{
		fflush(cur->handle);
	}
#endif
}

#ifdef _XBOX
HANDLE Sys_FileStreamMutex = INVALID_HANDLE_VALUE;
#endif

void Win_Init(void)
{
#ifdef _XBOX
	Sys_FileStreamMutex = CreateMutex(NULL, FALSE, NULL);
#endif
}

/*
=====================

XBE SWITCHING SUPPORT

=====================
*/

// Despite what you may think, this function actually just returns
// a value telling you if you *should* quick-boot -- ie skip intro
// cinematics and such. Only supposed to XGetLaunchInfo once per
// boot, so we cache the results.
#define LAUNCH_MAGIC "J3D1"
bool Sys_QuickStart( void )
{
	static bool retVal = false;
	static bool initialized = false;

	if( initialized )
		return retVal;

	initialized = true;

	DWORD launchType;
	LAUNCH_DATA ld;

	if( (XGetLaunchInfo( &launchType, &ld ) != ERROR_SUCCESS) ||
		(launchType != LDT_TITLE) ||
		strcmp((const char *)&ld.Data[0], LAUNCH_MAGIC) )
		return (retVal = false);

	return (retVal = true);
}

void Sys_Reboot( const char *reason )
{
	LAUNCH_DATA ld;
	const char *path = NULL;

	memset( &ld, 0, sizeof(ld) );

	if (!Q_stricmp(reason, "multiplayer"))
	{
		path = "d:\\jamp.xbe";
	}
	else
	{
		Com_Error( ERR_FATAL, "Unknown reboot code %s\n", reason );
	}

	// Title should not be doing ANYTHING in the background.
	// Shutting down sound ensures that the sound thread is gone
	S_Shutdown();
	// Similarly, kill off the streaming thread
	extern void Sys_StreamShutdown(void);
	Sys_StreamShutdown();

	XLaunchNewImage(path, &ld);

	// This function should not return!
	Com_Error( ERR_FATAL, "ERROR: XLaunchNewImage returned\n" );
}


/*
==================
WinMain

==================
*/
#if defined (_XBOX)
int __cdecl main()
#elif defined (_GAMECUBE)
int main(int argc, char* argv[])
#endif
{
//	Z_SetFreeOSMem();

	// I'm going to kill someone. This should not be necessary. No, really.
	Direct3D_SetPushBufferSize(1024*1024, 128*1024);

	// get the initial time base
	Sys_Milliseconds();

	Win_Init();
	Com_Init( "" );

	// main game loop
	while( 1 ) {
		IN_Frame();
		Com_Frame();

		// Poll debug console for new commands
#ifndef FINAL_BUILD
		DebugConsoleHandleCommands();
#endif
	}

	return 0;
}


char *Sys_GetClipboardData(void) { return NULL; }

void Sys_StartProcess(char *, qboolean) {}

void Sys_OpenURL(char *, int) {}

void Sys_Quit(void) {}

void Sys_ShowConsole(int, int) {}

void Sys_Mkdir(const char *) {}

int Sys_LowPhysicalMemory(void) { return 0; }

void Sys_FreeFileList(char **filelist)
{
	// All strings in a file list are allocated at once, so we just need to
	// do two frees, one for strings, one for the pointers.
	if ( filelist )
	{
		if ( filelist[0] )
			Z_Free( filelist[0] );

		Z_Free( filelist );
	}
}

#ifdef _JK2MP
char** Sys_ListFiles(const char *directory, const char *extension, char *filter, int *numfiles, qboolean wantsubs)
#else
char** Sys_ListFiles(const char *directory, const char *extension, int *numfiles, qboolean wantsubs)
#endif
{
#ifdef _JK2MP
	// MP has extra filter paramter. We don't support that.
	if (filter)
	{
		assert(!"Sys_ListFiles doesn't support filter on console!");
		return NULL;
	}
#endif

	// Hax0red console version of Sys_ListFiles. We mangle our arguments to get a standard filename
	// That file should exist, and contain the list of files that meet this search criteria.
	char	listFilename[MAX_OSPATH];
	char	*listFile, *curFile, *end;
	int		nfiles;
	char	**retList;

	// S00per hack
	if (strstr(directory, "d:\\base\\"))
		directory += 8;

	if (!extension)
	{
		extension = "";
	}
	else if (extension[0] == '/' && extension[1] == 0)
	{
		// Passing a slash as extension will find directories
		extension = "dir";
	}
	else if (extension[0] == '.')
	{
		// Skip over leading .
		extension++;
	}

	// Build our filename
	Com_sprintf(listFilename, sizeof(listFilename), "%s\\_console_%s_list_", directory, extension);
	if (FS_ReadFile( listFilename, (void**)&listFile ) <= 0)
	{
		if(listFile) {
			FS_FreeFile(listFile);
		}
		Com_Printf( "WARNING: List file %s not found\n", listFilename );
		if (numfiles)
			*numfiles = 0;
		return NULL;
	}

	// Do a first pass to count number of files in the list
	nfiles = 0;
	curFile = listFile;
	while (true)
	{
		// Find end of line
		end = strchr(curFile, '\r');
		if (end)
		{
			// Should have a \n next -- skip them both
			end += 2;
		}
		else
		{
			end = strchr(curFile, '\n');
			if (end) end++;
			else end = curFile + strlen(curFile);
		}

		// Is the line empty?  If so, we're done.
		if (!curFile || !curFile[0]) break;
		++nfiles;

		// Advance to next line
		curFile = end;
	}

	// Fill in caller's pointer for number of files found
	if (numfiles) *numfiles = nfiles;

	// Did we find any files at all?
	if (nfiles == 0)
	{
		FS_FreeFile(listFile);
		return NULL;
	}

	// Allocate a file list, and quick string pool, but use LISTFILES
	retList = (char **) Z_Malloc( ( nfiles + 1 ) * sizeof( *retList ), TAG_LISTFILES, qfalse);
	// Our string pool is actually slightly too large, but it's temporary, and that's better
	// than slightly too small
	char *stringPool = (char *) Z_Malloc( strlen(listFile) + 1, TAG_LISTFILES, qfalse );

	// Now go through the list of files again, and fill in the list to be returned
	nfiles = 0;
	curFile = listFile;
	while (true)
	{
		// Find end of line
		end = strchr(curFile, '\r');
		if (end)
		{
			// Should have a \n next -- skip them both
			*end++ = '\0';
			*end++ = '\0';
		}
		else
		{
			end = strchr(curFile, '\n');
			if (end) *end++ = '\0';
			else end = curFile + strlen(curFile);
		}

		// Is the line empty?  If so, we're done.
		int curStrSize = strlen(curFile);
		if (curStrSize < 1)
		{
			retList[nfiles] = NULL;
			break;
		}

		// Alloc a small copy
		//retList[nfiles++] = CopyString( curFile );
		retList[nfiles++] = stringPool;
		strcpy(stringPool, curFile);
		stringPool += (curStrSize + 1);

		// Advance to next line
		curFile = end;
	}

	// Free the special file's buffer
	FS_FreeFile( listFile );

	return retList;
}

/*
=================
Sys_UnloadGame
=================
*/
void Sys_UnloadGame( void ) {
}

/*
=================
Sys_GetGameAPI

Loads the game dll
=================
*/
#ifndef _JK2MP
void *Sys_GetGameAPI (void *parms)
{
	extern game_export_t *GetGameAPI( game_import_t *import );
	return GetGameAPI((game_import_t *)parms);
}
#endif

/*
=================
Sys_LoadCgame

Used to hook up a development dll
=================
*/
// void * Sys_LoadCgame( void ) 
#ifndef _JK2MP
void * Sys_LoadCgame( int (**entryPoint)(int, ...), int (*systemcalls)(int, ...) )
{
	extern void CG_PreInit();
	extern void cg_dllEntry( int (*syscallptr)( int arg,... ) );
	extern int vmMain( int command, int arg0, int arg1, int arg2, int arg3, int arg4, int arg5, int arg6, int arg7 );
	cg_dllEntry(systemcalls);
	*entryPoint = (int (*)(int,...))vmMain;
//	CG_PreInit();
	return 0;
}
#endif

/* VVFIXME: More stubs */
qboolean Sys_FileOutOfDate( LPCSTR psFinalFileName /* dest */, LPCSTR psDataFileName /* src */ )
{
	return qfalse;
}

qboolean Sys_CopyFile(LPCSTR lpExistingFileName, LPCSTR lpNewFileName, qboolean bOverwrite)
{
	return qfalse;
}

qboolean Sys_CheckCD( void )
{
	return qtrue;
}