/**************************************************************
 *
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *   http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 *
 *************************************************************/


#include <osl/diagnose.h>
#include "CFStringUtilities.hxx"

rtl::OUString CFStringToOUString(const CFStringRef sOrig) {
    //DBG_PRINT_ENTRY("CFStringUtilities", __func__, "sOrig", sOrig);

    if (NULL == sOrig) {
        return rtl::OUString();
    }

    CFRetain(sOrig);
    CFIndex nFileNameLength = CFStringGetLength(sOrig);
    //OSL_TRACE("FH: string length: %d", (int)(nFileNameLength));
    UniChar unichars[nFileNameLength+1];
    //'close' the string buffer correctly
    unichars[nFileNameLength] = '\0';

    CFStringGetCharacters (sOrig, CFRangeMake(0,nFileNameLength), unichars);

    //we no longer need the original string
    CFRelease(sOrig);

    //DBG_PRINT_EXIT("CFStringUtilities", __func__, unichars);

    return rtl::OUString(unichars);
}

CFStringRef CFStringCreateWithOUString(const rtl::OUString& aString) {
    //DBG_PRINT_ENTRY("CFStringUtilities", __func__);

    CFStringRef ref = CFStringCreateWithCharacters(kCFAllocatorDefault, aString.getStr(), aString.getLength());

    //DBG_PRINT_EXIT("CFStringUtilities", __func__, ref);

    return ref;
}

rtl::OUString FSRefToOUString(FSRef fsRef, InfoType info)
{
    //DBG_PRINT_ENTRY("CFStringUtilities", __func__);

    CFURLRef aUrlRef = CFURLCreateFromFSRef(NULL, &fsRef);

    rtl::OUString sResult = CFURLRefToOUString(aUrlRef, info);

    //we no longer need the CFURLRef
    CFRelease(aUrlRef);

    //DBG_PRINT_EXIT("CFStringUtilities", __func__, OUStringToOString(sResult, RTL_TEXTENCODING_UTF8).getStr());

    return sResult;
}

rtl::OUString CFURLRefToOUString(CFURLRef aUrlRef, InfoType info)
{
    //DBG_PRINT_ENTRY("CFStringUtilities", __func__);

    CFStringRef sURLString = NULL;

    switch(info) {
        case FULLPATH:
            OSL_TRACE("Extracting the full path of an item");
            sURLString = CFURLGetString(aUrlRef);
            CFRetain(sURLString);
            break;
        case FILENAME: {
            OSL_TRACE("Extracting the file name of an item");
            CFStringRef fullString = CFURLGetString(aUrlRef);
            CFURLRef dirRef = CFURLCreateCopyDeletingLastPathComponent(NULL,aUrlRef);
            CFIndex dirLength = CFStringGetLength(CFURLGetString(dirRef));
            CFRelease(dirRef);
            CFIndex fullLength = CFStringGetLength(fullString);
            CFRange substringRange = CFRangeMake(dirLength, fullLength - dirLength);
            sURLString = CFStringCreateWithSubstring(NULL, fullString, substringRange);
            } break;
        case PATHWITHOUTLASTCOMPONENT: {
            OSL_TRACE("Extracting the last but one component of an item's path");
            CFURLRef directoryRef = CFURLCreateCopyDeletingLastPathComponent(NULL,aUrlRef);
            sURLString = CFURLGetString(directoryRef);
            CFRetain(sURLString);
            CFRelease(directoryRef);
            } break;
        default:
            break;
    }

    rtl::OUString sResult = CFStringToOUString(sURLString);

    CFRelease(sURLString);

    //DBG_PRINT_EXIT("CFStringUtilities", __func__, OUStringToOString(sResult, RTL_TEXTENCODING_UTF8).getStr());

    return sResult;
}