/*

 *  ddjvuRef.c

 *  QuickLookDjVu

 *

 *  Created by Jeff Sickel on 11/27/07.

 *  Copyright 2007 Corpus Callosum Corporation. All rights reserved.

 *

 */

#include "ddjvuRef.h"

#include <CoreFoundation/CoreFoundation.h>

#include <ApplicationServices/ApplicationServices.h>

#include <sys/param.h> /* for MAXPATHLEN */

#include <sys/types.h>

#include <sys/stat.h>

CFURLRef

ddjvuURL(CFBundleRef bundle)

{

	CFURLRef ddjvuRef = NULL;

	if (bundle) {

		ddjvuRef = CFBundleCopyResourceURL(bundle, CFSTR("ddjvu"), NULL, NULL);

		if (ddjvuRef == NULL) {

			CFURLRef url = CFBundleCopyBundleURL(bundle);

			CFMutableStringRef path = NULL;

			CFStringRef bpath = CFURLCopyFileSystemPath(url, kCFURLPOSIXPathStyle);

			path = CFStringCreateMutableCopy(kCFAllocatorDefault, 1024, bpath);

			CFStringTrim(path, CFSTR("Library/QuickLook/djvu.qlgenerator"));

			CFStringAppend(path, CFSTR("bin/ddjvu"));

			CFShow(path);

			CFRelease(bpath);

		}

	}

	if (ddjvuRef == NULL) {

		CFBundleRef djviewBundle = NULL;

		djviewBundle = CFBundleGetBundleWithIdentifier(CFSTR("org.djvu.DjView"));

		if (djviewBundle == NULL) {

			OSStatus stat;

			FSRef djviewPath;

			CFURLRef refURL;

			stat = LSFindApplicationForInfo(kLSUnknownCreator, CFSTR("org.djvu.DjView"), NULL, &djviewPath, &refURL);

			if (stat == noErr) {

				djviewBundle = CFBundleCreate(kCFAllocatorDefault, refURL);

			}

		}

		if (djviewBundle != NULL) {

			CFURLRef url = CFBundleCopyBundleURL(djviewBundle);

			ddjvuRef = CFURLCreateCopyAppendingPathComponent(kCFAllocatorDefault,

															 url,

															 CFSTR("Contents/bin/ddjvu"),

															 false);

			CFRelease(url);

			CFRelease(djviewBundle);

		}		

	}

	return ddjvuRef;

}

char *

ddjvuPath(CFBundleRef bundle)

{

	static char *ddjvuRef = NULL;

	if (ddjvuRef == NULL) {

		CFURLRef url = ddjvuURL(bundle);

		if (url != NULL) {

			char buf[MAXPATHLEN];

			if (CFURLGetFileSystemRepresentation(url, true, (UInt8 *)buf, MAXPATHLEN))

			{

				ddjvuRef = (char *)malloc(strlen(buf));

				strcpy(ddjvuRef, buf);

			}

			CFRelease(url);

		}

	} else {

		struct stat fstat;

		if (stat(ddjvuRef, &fstat) != 0){

			free(ddjvuRef);

			ddjvuRef = NULL;

			return ddjvuPath(bundle);

		}

	}

	return ddjvuRef;

}