/*****************************************************************************\
     Snes9x - Portable Super Nintendo Entertainment System (TM) emulator.
                This file is licensed under the Snes9x License.
   For further information, consult the LICENSE file in the root directory.
\*****************************************************************************/

/***********************************************************************************
  SNES9X for Mac OS (c) Copyright John Stiles

  Snes9x for Mac OS X

  (c) Copyright 2001 - 2011  zones
  (c) Copyright 2002 - 2005  107
  (c) Copyright 2002         PB1400c
  (c) Copyright 2004         Alexander and Sander
  (c) Copyright 2004 - 2005  Steven Seeger
  (c) Copyright 2005         Ryan Vogt
 ***********************************************************************************/


#include "snes9x.h"
#include "memmap.h"
#include "movie.h"
#include "display.h"

#include <libgen.h>

#include "mac-prefix.h"
#include "mac-dialog.h"
#include "mac-os.h"
#include "mac-stringtools.h"
#include "mac-file.h"

static void AddFolderIcon (FSRef *, const char *);
static OSStatus FindSNESFolder (FSRef *, char *, const char *);
static OSStatus FindApplicationSupportFolder (FSRef *, char *, const char *);
static OSStatus FindCustomFolder (FSRef *, char *, const char *);


void CheckSaveFolder (FSRef *cartRef)
{
	OSStatus		err;
	Boolean			r;
	FSCatalogInfo	finfo;
	FSVolumeInfo	vinfo;
	FSRef			ref;
	CFURLRef		burl, purl;
	char			s[PATH_MAX + 1];

	switch (saveInROMFolder)
	{
		case 0: // Snes9x folder
			burl = CFBundleCopyBundleURL(CFBundleGetMainBundle());
			purl = CFURLCreateCopyDeletingLastPathComponent(kCFAllocatorDefault, burl);
			r    = CFURLGetFSRef(purl, &ref);
			CFRelease(purl);
			CFRelease(burl);
			break;

		case 1: // ROM folder
			err = FSGetCatalogInfo(cartRef, kFSCatInfoNone, NULL, NULL, NULL, &ref);
			break;

		case 2: // Application Support folder
			return;

		case 4: // Custom folder
			if (saveFolderPath == NULL)
			{
				saveInROMFolder = 2;
				return;
			}

			r = CFStringGetCString(saveFolderPath, s, PATH_MAX, kCFStringEncodingUTF8);
			err = FSPathMakeRef((unsigned char *) s, &ref, NULL);
			if (err)
			{
				AppearanceAlert(kAlertCautionAlert, kS9xMacAlertFolderNotFound, kS9xMacAlertFolderNotFoundHint);
				saveInROMFolder = 2;
				return;
			}

			break;
	}

	err = FSGetCatalogInfo(&ref, kFSCatInfoUserPrivs | kFSCatInfoVolume, &finfo, NULL, NULL, NULL);
	if (err == noErr)
	{
		if (finfo.userPrivileges & kioACUserNoMakeChangesMask)
		{
			AppearanceAlert(kAlertCautionAlert, kS9xMacAlertFolderFailToCreate, kS9xMacAlertFolderFailToCreateHint);
			saveInROMFolder = 2;
			return;
		}

		err = FSGetVolumeInfo(finfo.volume, 0, NULL, kFSVolInfoFlags, &vinfo, NULL, NULL);
		if (err == noErr)
		{
			if ((vinfo.flags & kFSVolFlagHardwareLockedMask) || (vinfo.flags & kFSVolFlagSoftwareLockedMask))
			{
				AppearanceAlert(kAlertCautionAlert, kS9xMacAlertFolderFailToCreate, kS9xMacAlertFolderFailToCreateHint);
				saveInROMFolder = 2;
				return;
			}
		}
	}

	if (err)
		saveInROMFolder = 2;
}

static OSStatus FindSNESFolder (FSRef *folderRef, char *folderPath, const char *folderName)
{
	OSStatus	err;
	CFURLRef	burl, purl;
	CFStringRef	fstr;
	FSRef		pref;
	UniChar		buffer[PATH_MAX + 1];
	Boolean		r;

	fstr = CFStringCreateWithCString(kCFAllocatorDefault, folderName, CFStringGetSystemEncoding());
	CFStringGetCharacters(fstr, CFRangeMake(0, CFStringGetLength(fstr)), buffer);

	burl = CFBundleCopyBundleURL(CFBundleGetMainBundle());
	purl = CFURLCreateCopyDeletingLastPathComponent(kCFAllocatorDefault, burl);
	r    = CFURLGetFSRef(purl, &pref);

	err = FSMakeFSRefUnicode(&pref, CFStringGetLength(fstr), buffer, kTextEncodingUnicodeDefault, folderRef);
	if (err == dirNFErr || err == fnfErr)
	{
		err = FSCreateDirectoryUnicode(&pref, CFStringGetLength(fstr), buffer, kFSCatInfoNone, NULL, folderRef, NULL, NULL);
		if (err == noErr)
			AddFolderIcon(folderRef, folderName);
	}

	if (err == noErr)
		err = FSRefMakePath(folderRef, (unsigned char *) folderPath, PATH_MAX);

	CFRelease(purl);
	CFRelease(burl);
	CFRelease(fstr);

	return (err);
}

static OSStatus FindApplicationSupportFolder (FSRef *folderRef, char *folderPath, const char *folderName)
{
	OSStatus	err;
	FSRef		p2ref, p1ref;
	CFStringRef	fstr;
	UniChar		buffer[PATH_MAX + 1];
	UniChar		s9xfolder[6] = { 'S', 'n', 'e', 's', '9', 'x' },
				oldfolder[6] = { 'S', 'N', 'E', 'S', '9', 'X' };

	err = FSFindFolder(kUserDomain, kApplicationSupportFolderType, kCreateFolder, &p2ref);
	if (err)
		return (err);

	err = FSMakeFSRefUnicode(&p2ref, 6, s9xfolder, kTextEncodingUnicodeDefault, &p1ref);
	if (err == dirNFErr || err == fnfErr)
	{
		err = FSMakeFSRefUnicode(&p2ref, 6, oldfolder, kTextEncodingUnicodeDefault, &p1ref);
		if (err == dirNFErr || err == fnfErr)
			err = FSCreateDirectoryUnicode(&p2ref, 6, s9xfolder, kFSCatInfoNone, NULL, &p1ref, NULL, NULL);
	}

	if (err)
		return (err);

	fstr = CFStringCreateWithCString(kCFAllocatorDefault, folderName, CFStringGetSystemEncoding());
	CFStringGetCharacters(fstr, CFRangeMake(0, CFStringGetLength(fstr)), buffer);

	err = FSMakeFSRefUnicode(&p1ref, CFStringGetLength(fstr), buffer, kTextEncodingUnicodeDefault, folderRef);
	if (err == dirNFErr || err == fnfErr)
	{
		err = FSCreateDirectoryUnicode(&p1ref, CFStringGetLength(fstr), buffer, kFSCatInfoNone, NULL, folderRef, NULL, NULL);
		if (err == noErr)
			AddFolderIcon(folderRef, folderName);
	}

	if (err == noErr)
		err = FSRefMakePath(folderRef, (unsigned char *) folderPath, PATH_MAX);

	CFRelease(fstr);

	return (err);
}

static OSStatus FindCustomFolder (FSRef *folderRef, char *folderPath, const char *folderName)
{
	OSStatus	err;
	CFStringRef	fstr;
	FSRef		pref;
	UniChar		buffer[PATH_MAX + 1];
	char		s[PATH_MAX + 1];

	if (saveFolderPath == NULL)
		return (-1);

	err = CFStringGetCString(saveFolderPath, s, PATH_MAX, kCFStringEncodingUTF8) ? noErr : -1;
	if (err == noErr)
		err = FSPathMakeRef((unsigned char *) s, &pref, NULL);

	if (err)
		return (err);

	fstr = CFStringCreateWithCString(kCFAllocatorDefault, folderName, CFStringGetSystemEncoding());
	CFStringGetCharacters(fstr, CFRangeMake(0, CFStringGetLength(fstr)), buffer);

	err = FSMakeFSRefUnicode(&pref, CFStringGetLength(fstr), buffer, kTextEncodingUnicodeDefault, folderRef);
	if (err == dirNFErr || err == fnfErr)
	{
		err = FSCreateDirectoryUnicode(&pref, CFStringGetLength(fstr), buffer, kFSCatInfoNone, NULL, folderRef, NULL, NULL);
		if (err == noErr)
			AddFolderIcon(folderRef, folderName);
	}

	if (err == noErr)
		err = FSRefMakePath(folderRef, (unsigned char *) folderPath, PATH_MAX);

	CFRelease(fstr);

	return (err);
}

void ChangeTypeAndCreator (const char *path, OSType type, OSType creator)
{
	OSStatus	err;
	FSRef		ref;

	err = FSPathMakeRef((unsigned char *) path, &ref, NULL);
	if (err == noErr)
	{
		FSCatalogInfo	catinfo;

		err = FSGetCatalogInfo(&ref, kFSCatInfoFinderInfo, &catinfo, NULL, NULL, NULL);
		if (err == noErr)
		{
			((FileInfo *) &catinfo.finderInfo)->fileCreator = creator;
			((FileInfo *) &catinfo.finderInfo)->fileType    = type;

			err = FSSetCatalogInfo(&ref, kFSCatInfoFinderInfo, &catinfo);
		}
	}
}

static void AddFolderIcon (FSRef *fref, const char *folderName)
{
	OSStatus			err;
	FSCatalogInfo		fcat, icat;
	FSRef				bref, iref;
	CFStringRef			str;
	CFURLRef			url;
	IconFamilyHandle	family;
	IconRef				icon;
	HFSUniStr255		fork;
	Boolean				r;
	SInt16				resf;
	char				name[64];
	UniChar				iconName[5] = { 'I', 'c', 'o', 'n', '\r' };

	strcpy(name, "folder_");
	strcat(name, folderName);

	str = CFStringCreateWithCString(kCFAllocatorDefault, name, CFStringGetSystemEncoding());
	if (str)
	{
		url = CFBundleCopyResourceURL(CFBundleGetMainBundle(), str, CFSTR("icns"), NULL);
		if (url)
		{
			r = CFURLGetFSRef(url, &bref);
			if (r)
			{
				err = RegisterIconRefFromFSRef('~9X~', 'TEMP', &bref, &icon);
				if (err == noErr)
				{
					err = FSGetResourceForkName(&fork);
					if (err == noErr)
					{
						err = FSCreateResourceFile(fref, 5, iconName, kFSCatInfoNone, NULL, fork.length, fork.unicode, &iref, NULL);
						if (err == noErr)
						{
							err = FSOpenResourceFile(&iref, fork.length, fork.unicode, fsWrPerm, &resf);
							if (err == noErr)
							{
								err = IconRefToIconFamily(icon, kSelectorAllAvailableData, &family);
								if (err == noErr)
								{
									AddResource((Handle) family, 'icns', -16455, "\p");
									WriteResource((Handle) family);
									ReleaseResource((Handle) family);

									err = FSGetCatalogInfo(&iref, kFSCatInfoFinderInfo, &icat, NULL, NULL, NULL);
									((FileInfo *) &icat.finderInfo)->finderFlags |= kIsInvisible;
									((FileInfo *) &icat.finderInfo)->fileCreator = 'MACS';
									((FileInfo *) &icat.finderInfo)->fileType    = 'icon';
									err = FSSetCatalogInfo(&iref, kFSCatInfoFinderInfo, &icat);

									err = FSGetCatalogInfo(fref, kFSCatInfoFinderInfo, &fcat, NULL, NULL, NULL);
									((FolderInfo *) &fcat.finderInfo)->finderFlags |=  kHasCustomIcon;
									((FolderInfo *) &fcat.finderInfo)->finderFlags &= ~kHasBeenInited;
									err = FSSetCatalogInfo(fref, kFSCatInfoFinderInfo, &fcat);
								}

								CloseResFile(resf);
							}
						}
					}

					err = UnregisterIconRef('~9X~', 'TEMP');
				}
			}

			CFRelease(url);
		}

		CFRelease(str);
	}
}

const char * S9xGetFilename (const char *inExt, enum s9x_getdirtype dirtype)
{
	static int	index = 0;
	static char	filePath[4][PATH_MAX + 1];

	OSStatus	err;
	FSRef		ref;
	uint32		type;
	char		folderName[16];
	char		drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];
	const char	*p;

	index++;
	if (index > 3)
		index = 0;

	folderName[0] = filePath[index][0] = 0;

	if (strlen(inExt) < 4)
		return (filePath[index]);

	p = inExt + strlen(inExt) - 4;
	type = ((uint32) p[0] << 24) + ((uint32) p[1] << 16) + ((uint32) p[2] << 8) + (uint32) p[3];

	switch (type)
	{
		case '.srm':
		case '.rtc':
			strcpy(folderName, "SRAMs");
			break;

		case '.frz':
			strcpy(folderName, "Freezes");
			break;

		case '.spc':
			strcpy(folderName, "SPCs");
			break;

		case '.cht':
			strcpy(folderName, "Cheats");
			break;

		case '.ups':
		case '.ips':
			strcpy(folderName, "Patches");
			break;

		case '.png':
			strcpy(folderName, "Screenshots");
			break;

		case '.dat':
		case '.out':
		case '.log':
			strcpy(folderName, "Logs");
			break;

		case '.bio':	// dummy
			strcpy(folderName, "BIOSes");
			break;
	}

	if (folderName[0] && (saveInROMFolder != 1))
	{
		char	s[PATH_MAX + 1];

		s[0] = 0;
		err = -1;

		if (saveInROMFolder == 0)
		{
			err = FindSNESFolder(&ref, s, folderName);
			if (err)
				saveInROMFolder = 2;
		}

		if (saveInROMFolder == 4)
		{
			err = FindCustomFolder(&ref, s, folderName);
			if (err)
				saveInROMFolder = 2;
		
		}

		if (saveInROMFolder == 2)
			err = FindApplicationSupportFolder(&ref, s, folderName);

		if (err == noErr)
		{
			_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
			snprintf(filePath[index], PATH_MAX + 1, "%s%s%s%s", s, MAC_PATH_SEPARATOR, fname, inExt);
		}
		else
		{
			_splitpath(Memory.ROMFilename, drive, dir, fname, ext);
			_makepath(filePath[index], drive, dir, fname, inExt);
		}
	}
	else
	{
	    _splitpath(Memory.ROMFilename, drive, dir, fname, ext);
		_makepath(filePath[index], drive, dir, fname, inExt);
	}

	return (filePath[index]);
}

const char * S9xGetSPCFilename (void)
{
	char	spcExt[16];

	sprintf(spcExt, ".%03d.spc", (int) spcFileCount);

	spcFileCount++;
	if (spcFileCount == 1000)
		spcFileCount = 0;

	return (S9xGetFilename(spcExt, SPC_DIR));
}

const char * S9xGetPNGFilename (void)
{
	char	pngExt[16];

	sprintf(pngExt, ".%03d.png", (int) pngFileCount);

	pngFileCount++;
	if (pngFileCount == 1000)
		pngFileCount = 0;

	return (S9xGetFilename(pngExt, SCREENSHOT_DIR));
}

const char * S9xGetFreezeFilename (int which)
{
	char	frzExt[16];

	sprintf(frzExt, ".%03d.frz", which);

	return (S9xGetFilename(frzExt, SNAPSHOT_DIR));
}

const char * S9xGetFilenameInc (const char *inExt, enum s9x_getdirtype dirtype)
{
	uint32		type;
	const char	*p;

	if (strlen(inExt) < 4)
		return (NULL);

	p = inExt + strlen(inExt) - 4;
	type = ((uint32) p[0] << 24) + ((uint32) p[1] << 16) + ((uint32) p[2] << 8) + (uint32) p[3];

	switch (type)
	{
		case '.spc':
			return (S9xGetSPCFilename());

		case '.png':
			return (S9xGetPNGFilename());
	}

	return (NULL);
}

const char * S9xChooseFilename (bool8 read_only)
{
	return (NULL);
}

const char * S9xChooseMovieFilename (bool8 read_only)
{
	return (NULL);
}

bool8 S9xOpenSnapshotFile (const char *fname, bool8 read_only, STREAM *file)
{
    if (read_only)
    {
		if (0 != (*file = OPEN_STREAM(fname, "rb")))
		    return (true);
    }
    else
    {
		if (0 != (*file = OPEN_STREAM(fname, "wb")))
		    return (true);
    }

    return (false);
}

void S9xCloseSnapshotFile (STREAM file)
{
    CLOSE_STREAM(file);
}

const char * S9xBasename (const char *in)
{
	static char	s[PATH_MAX + 1];

	strncpy(s, in, PATH_MAX + 1);
	s[PATH_MAX] = 0;

	size_t	l = strlen(s);

	for (unsigned int i = 0; i < l; i++)
    {
		if (s[i] < 32 || s[i] >= 127)
			s[i] = '_';
	}

	return (basename(s));
}

const char * S9xGetDirectory (enum s9x_getdirtype dirtype)
{
	static int	index = 0;
	static char	path[4][PATH_MAX + 1];

	char	inExt[16];
	char	drive[_MAX_DRIVE + 1], dir[_MAX_DIR + 1], fname[_MAX_FNAME + 1], ext[_MAX_EXT + 1];

	index++;
	if (index > 3)
		index = 0;

	switch (dirtype)
	{
		case SNAPSHOT_DIR:		strcpy(inExt, ".frz");	break;
		case SRAM_DIR:			strcpy(inExt, ".srm");	break;
		case SCREENSHOT_DIR:	strcpy(inExt, ".png");	break;
		case SPC_DIR:			strcpy(inExt, ".spc");	break;
		case CHEAT_DIR:			strcpy(inExt, ".cht");	break;
		case BIOS_DIR:			strcpy(inExt, ".bio");	break;
		case LOG_DIR:			strcpy(inExt, ".log");	break;
		default:				strcpy(inExt, ".xxx");	break;
	}

	_splitpath(S9xGetFilename(inExt, dirtype), drive, dir, fname, ext);
	_makepath(path[index], drive, dir, "", "");

	int	l = strlen(path[index]);
	if (l > 1)
		path[index][l - 1] = 0;

	return (path[index]);
}

void _splitpath (const char *path, char *drive, char *dir, char *fname, char *ext)
{
	drive[0] = 0;
	fname[0] = 0;
	ext[0]   = 0;
	dir[0]   = 0;

	int	x;

	x = strlen(path) - 1;
	if (x < 0)
		return;

	while (x && (path[x] != MAC_PATH_SEP_CHAR))
		x--;

	if (x)
	{
		strcpy(dir, path);
		dir[x + 1] = 0;

		strcpy(fname, path + x + 1);
	}
	else
		strcpy(fname, path);

	x = strlen(fname);
	while (x && (fname[x] != '.'))
		x--;

	if (x)
	{
		strcpy(ext, fname + x);
		fname[x] = 0;
	}
}

void _makepath (char *path, const char *drive, const char *dir, const char *fname, const char *ext)
{
	static const char	emp[] = "", dot[] = ".";

	const char	*d, *f, *e, *p;

	d = dir ? dir : emp;
	f = fname ? fname : emp;
	e = ext ? ext : emp;
	p = (e[0] && e[0] != '.') ? dot : emp;

	snprintf(path, PATH_MAX + 1, "%s%s%s%s", d, f, p, e);
}