#include "osdcmds.h"
#include "osd.h"
#include "baselayer.h"
#include "duke3d.h"
#include "crc32.h"

#include <ctype.h>

struct osdcmd_cheatsinfo osdcmd_cheatsinfo_stat;

int osdcmd_quit(const osdfuncparm_t *parm)
{
	parm=parm;
	if (numplayers > 1) {
		if(!(ps[myconnectindex].gm&MODE_GAME))
			sendlogoff();
	}
	gameexit(" ");

	return OSDCMD_OK;
}

int osdcmd_echo(const osdfuncparm_t *parm)
{
	const char *c;

	for (c = parm->raw; *c && *c != ' '; c++) ;
	for (; *c && *c == ' '; c++) ;
	OSD_Printf("%s\n", c);
	
	return OSDCMD_OK;
}

int osdcmd_changelevel(const osdfuncparm_t *parm)
{
	int volume=0,level,i;
	char *p;

	if (!VOLUMEONE) {
		if (parm->numparms != 2) return OSDCMD_SHOWHELP;

		volume = strtol(parm->parms[0], &p, 10) - 1;
		if (p[0]) return OSDCMD_SHOWHELP;
		level = strtol(parm->parms[1], &p, 10) - 1;
		if (p[0]) return OSDCMD_SHOWHELP;
	} else {
		if (parm->numparms != 1) return OSDCMD_SHOWHELP;

		level = strtol(parm->parms[0], &p, 10) - 1;
		if (p[0]) return OSDCMD_SHOWHELP;
	}

	if (volume < 0) return OSDCMD_SHOWHELP;
	if (level < 0) return OSDCMD_SHOWHELP;

	if (!VOLUMEONE) {
		if (PLUTOPAK) {
			if (volume > 3) {
				OSD_Printf("changelevel: invalid volume number (range 1-4)\n");
				return OSDCMD_OK;
			}
		} else {
			if (volume > 2) {
				OSD_Printf("changelevel: invalid volume number (range 1-3)\n");
				return OSDCMD_OK;
			}
		}
	}

	if (volume == 0) {
		if (level > 5) {
			OSD_Printf("changelevel: invalid volume 1 level number (range 1-6)\n");
			return OSDCMD_OK;
		}
	} else {
		if (level > 10) {
			OSD_Printf("changelevel: invalid volume 2+ level number (range 1-11)\n");
			return OSDCMD_SHOWHELP;
		}
	}

	if (ps[myconnectindex].gm & MODE_GAME) {
		// in-game behave like a cheat
		osdcmd_cheatsinfo_stat.cheatnum = 2;
		osdcmd_cheatsinfo_stat.volume   = volume;
		osdcmd_cheatsinfo_stat.level    = level;
	} else {
		// out-of-game behave like a menu command
		osdcmd_cheatsinfo_stat.cheatnum = -1;
		
		ud.m_volume_number = volume;
		ud.m_level_number = level;
		
                ud.m_monsters_off = ud.monsters_off = 0;

                ud.m_respawn_items = 0;
                ud.m_respawn_inventory = 0;

                ud.multimode = 1;

                newgame(ud.m_volume_number,ud.m_level_number,ud.m_player_skill);
                if (enterlevel(MODE_GAME)) backtomenu();
	}

	return OSDCMD_OK;
}

int osdcmd_map(const osdfuncparm_t *parm)
{
	int i;
	char filename[256];

	if (parm->numparms != 1) return OSDCMD_SHOWHELP;
	
	strcpy(filename,parm->parms[0]);
	if( strchr(filename,'.') == 0)
        	strcat(filename,".map");

	if ((i = kopen4load(filename,0)) < 0) {
		OSD_Printf("map: file \"%s\" does not exist.\n", filename);
		return OSDCMD_OK;
	}
	kclose(i);

	strcpy(boardfilename, filename);
	
	if (ps[myconnectindex].gm & MODE_GAME) {
		// in-game behave like a cheat
		osdcmd_cheatsinfo_stat.cheatnum = 2;
		osdcmd_cheatsinfo_stat.volume = 0;
		osdcmd_cheatsinfo_stat.level = 7;
	} else {
		// out-of-game behave like a menu command
		osdcmd_cheatsinfo_stat.cheatnum = -1;

		ud.m_volume_number = 0;
		ud.m_level_number = 7;

                ud.m_monsters_off = ud.monsters_off = 0;

                ud.m_respawn_items = 0;
                ud.m_respawn_inventory = 0;

                ud.multimode = 1;
		
	 	newgame(ud.m_volume_number,ud.m_level_number,ud.m_player_skill);
                if (enterlevel(MODE_GAME)) backtomenu();
	}
       
	return OSDCMD_OK;
}

int osdcmd_god(const osdfuncparm_t *parm)
{
	parm=parm;
	if (numplayers == 1 && ps[myconnectindex].gm & MODE_GAME) {
		osdcmd_cheatsinfo_stat.cheatnum = 0;
	} else {
		OSD_Printf("god: Not in a single-player game.\n");
	}
	
	return OSDCMD_OK;
}

int osdcmd_noclip(const osdfuncparm_t *parm)
{
	parm=parm;
	if (numplayers == 1 && ps[myconnectindex].gm & MODE_GAME) {
		osdcmd_cheatsinfo_stat.cheatnum = 20;
	} else {
		OSD_Printf("god: Not in a single-player game.\n");
	}
	
	return OSDCMD_OK;
}

int osdcmd_fileinfo(const osdfuncparm_t *parm)
{
	unsigned long crc, length;
	int i,j;
	char buf[256];

	if (parm->numparms != 1) return OSDCMD_SHOWHELP;
	
	if ((i = kopen4load((char *)parm->parms[0],0)) < 0) {
		OSD_Printf("fileinfo: File \"%s\" does not exist.\n", parm->parms[0]);
		return OSDCMD_OK;
	}

	length = kfilelength(i);

	crc32init(&crc);
	do {
		j = kread(i,buf,256);
		crc32block(&crc,buf,j);
	} while (j == 256);
	crc32finish(&crc);
	
	kclose(i);

	OSD_Printf("fileinfo: %s\n"
	           "  File size: %d\n"
		   "  CRC-32:    %08X\n",
		   parm->parms[0], length, crc);

	return OSDCMD_OK;
}

static int osdcmd_restartvid(const osdfuncparm_t *parm)
{
	extern long qsetmode;
	
	resetvideomode();
	if (setgamemode(ScreenMode,ScreenWidth,ScreenHeight,ScreenBPP))
		gameexit("restartvid: Reset failed...\n");
	onvideomodechange(ScreenBPP>8);
	vscrn();

	return OSDCMD_OK;
}

static int osdcmd_vidmode(const osdfuncparm_t *parm)
{
	int newbpp = ScreenBPP, newwidth = ScreenWidth,
		newheight = ScreenHeight, newfs = ScreenMode;
	if (parm->numparms < 1 || parm->numparms > 4) return OSDCMD_SHOWHELP;

	switch (parm->numparms) {
		case 1:	// bpp switch
			newbpp = Batol(parm->parms[0]);
			break;
		case 2: // res switch
			newwidth = Batol(parm->parms[0]);
			newheight = Batol(parm->parms[1]);
			break;
		case 3:	// res & bpp switch
		case 4:
			newwidth = Batol(parm->parms[0]);
			newheight = Batol(parm->parms[1]);
			newbpp = Batol(parm->parms[2]);
			if (parm->numparms == 4)
				newfs = (Batol(parm->parms[3]) != 0);
			break;
	}

	if (setgamemode(newfs,newwidth,newheight,newbpp)) {
		initprintf("vidmode: Mode change failed!\n");
		if (setgamemode(ScreenMode, ScreenWidth, ScreenHeight, ScreenBPP))
			gameexit("vidmode: Reset failed!\n");
	}
	ScreenBPP = newbpp; ScreenWidth = newwidth; ScreenHeight = newheight;
	ScreenMode = newfs;
	onvideomodechange(ScreenBPP>8);
	vscrn();
	return OSDCMD_OK;
}

static int osdcmd_setstatusbarscale(const osdfuncparm_t *parm)
{
	if (parm->numparms == 0) {
		OSD_Printf("setstatusbarscale: scale is %d%%\n", ud.statusbarscale);
		return OSDCMD_OK;
	} else if (parm->numparms != 1) return OSDCMD_SHOWHELP;

	setstatusbarscale(Batol(parm->parms[0]));
	OSD_Printf("setstatusbarscale: new scale is %d%%\n", ud.statusbarscale);
	return OSDCMD_OK;
}

static int osdcmd_spawn(const osdfuncparm_t *parm)
{
	long x,y,z;
	unsigned short cstat,picnum;
	unsigned char pal;
	short ang;
	short set=0, idx;

	if (numplayers > 1 || !(ps[myconnectindex].gm & MODE_GAME)) {
		OSD_Printf("spawn: Can't spawn sprites in multiplayer games or demos\n");
		return OSDCMD_OK;
	}
	
	switch (parm->numparms) {
		case 7:	// x,y,z
			x = Batol(parm->parms[4]);
			y = Batol(parm->parms[5]);
			z = Batol(parm->parms[6]);
			set |= 8;
		case 4:	// ang
			ang = Batol(parm->parms[3]) & 2047; set |= 4;
		case 3:	// cstat
			cstat = (unsigned short)Batol(parm->parms[2]); set |= 2;
		case 2:	// pal
			pal = (unsigned char)Batol(parm->parms[1]); set |= 1;
		case 1:	// tile number
			if (isdigit(parm->parms[0][0])) {
				picnum = (unsigned short)Batol(parm->parms[0]);
			} else {
				int i,j;
				for (j=0; j<2; j++) {
					for (i=0; i<labelcnt; i++) {
						if (
						    (j == 0 && !Bstrcmp(label+(i<<6),     parm->parms[0])) ||
						    (j == 1 && !Bstrcasecmp(label+(i<<6), parm->parms[0]))
						   ) {
							picnum = (unsigned short)labelcode[i];
							break;
						}
					}
					if (i<labelcnt) break;
				}
				if (i==labelcnt) {
					OSD_Printf("spawn: Invalid tile label given\n");
					return OSDCMD_OK;
				}
			}
			
			if (picnum >= MAXTILES) {
				OSD_Printf("spawn: Invalid tile number\n");
				return OSDCMD_OK;
			}
			break;
		default:
			return OSDCMD_SHOWHELP;
	}

	idx = spawn(ps[myconnectindex].i, (short)picnum);
	if (set & 1) sprite[idx].pal = (char)pal;
	if (set & 2) sprite[idx].cstat = (short)cstat;
	if (set & 4) sprite[idx].ang = ang;
	if (set & 8) {
		if (setsprite(idx, x,y,z) < 0) {
			OSD_Printf("spawn: Sprite can't be spawned into null space\n");
			deletesprite(idx);
		}
	}
	
	return OSDCMD_OK;
}


void onvideomodechange(int newmode)
{
	char *pal;

	if (newmode) {
		if (ps[screenpeek].palette == palette ||
		    ps[screenpeek].palette == waterpal ||
		    ps[screenpeek].palette == slimepal)
			pal = palette;
		else
			pal = ps[screenpeek].palette;
	} else {
		pal = ps[screenpeek].palette;
	}

	setbrightness(ud.brightness>>2, pal, 0);
	restorepalette = 1;
}

int registerosdcommands(void)
{
	osdcmd_cheatsinfo_stat.cheatnum = -1;

	OSD_RegisterFunction("echo","echo [text]: echoes text to the console", osdcmd_echo);

if (VOLUMEONE) {
	OSD_RegisterFunction("changelevel","changelevel <level>: warps to the given level", osdcmd_changelevel);
} else {
	OSD_RegisterFunction("changelevel","changelevel <volume> <level>: warps to the given level", osdcmd_changelevel);
	OSD_RegisterFunction("map","map <mapfile>: loads the given user map", osdcmd_map);
}
	OSD_RegisterFunction("god","god: toggles god mode", osdcmd_god);
	OSD_RegisterFunction("noclip","noclip: toggles clipping mode", osdcmd_noclip);

	OSD_RegisterFunction("setstatusbarscale","setstatusbarscale [percent]: changes the status bar scale", osdcmd_setstatusbarscale);
	OSD_RegisterFunction("spawn","spawn <picnum> [palnum] [cstat] [ang] [x y z]: spawns a sprite with the given properties",osdcmd_spawn);
	
	OSD_RegisterFunction("fileinfo","fileinfo <file>: gets a file's information", osdcmd_fileinfo);
	OSD_RegisterFunction("quit","quit: exits the game immediately", osdcmd_quit);

	OSD_RegisterVariable("myname",OSDVAR_STRING,myname,32,NULL);
	OSD_RegisterVariable("showfps",OSDVAR_INTEGER,&ud.tickrate,1,osd_internal_validate_boolean);
	OSD_RegisterVariable("showcoords",OSDVAR_INTEGER,&ud.coords,1,osd_internal_validate_boolean);
	OSD_RegisterVariable("useprecache",OSDVAR_INTEGER,&useprecache,1,osd_internal_validate_boolean);

	OSD_RegisterFunction("restartvid","restartvid: reinitialised the video mode",osdcmd_restartvid);
	OSD_RegisterFunction("vidmode","vidmode [xdim ydim] [bpp] [fullscreen]: immediately change the video mode",osdcmd_vidmode);
	
	//baselayer_onvideomodechange = onvideomodechange;

	return 0;
}