/* -*- Mode: C; tab-width: 2; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include <CoreFoundation/CoreFoundation.h>
#include <CoreServices/CoreServices.h>

/* -----------------------------------------------------------------------------
    Get metadata attributes from file

   This function's job is to extract useful information from the .mozeml file
   and return it as a dictionary
   -----------------------------------------------------------------------------
 */

Boolean GetMetadataForFile(void* thisInterface,
                           CFMutableDictionaryRef attributes,
                           CFStringRef contentTypeUTI, CFStringRef pathToFile) {
  /* Pull any available metadata from the file at the specified path */
  /* Return the attribute keys and attribute values in the dict */
  /* Return TRUE if successful, FALSE if there was no data provided */
  Boolean success;
  CFURLRef fileURL = CFURLCreateWithFileSystemPath(
      kCFAllocatorDefault, pathToFile, kCFURLPOSIXPathStyle, false);
  CFReadStreamRef stream =
      CFReadStreamCreateWithFile(kCFAllocatorDefault, fileURL);
  CFReadStreamOpen(stream);

  CFErrorRef err = NULL;
  CFPropertyListRef ticket = CFPropertyListCreateWithStream(
      kCFAllocatorDefault, stream,
      /*streamLength*/ 0, kCFPropertyListImmutable, NULL, &err);
  if (err != NULL) {
    CFStringRef errorString = CFErrorCopyDescription(err);
    if (errorString != NULL) {
      printf("failed creating property list from stream\n");
      printf("error = %s\n", (const char*)errorString);
    }
    CFRelease(err);
    success = FALSE;
  } else {
    CFTypeRef value;
    value = CFDictionaryGetValue(ticket, kMDItemTitle);
    if (value) {
      CFDictionarySetValue(attributes, kMDItemTitle, value);
    }
    value = CFDictionaryGetValue(ticket, kMDItemTextContent);
    if (value) {
      CFDictionarySetValue(attributes, kMDItemTextContent, value);
    }
    value = CFDictionaryGetValue(ticket, kMDItemDisplayName);
    if (value) CFDictionarySetValue(attributes, kMDItemDisplayName, value);

    CFDateFormatterRef dateFormatter = CFDateFormatterCreate(
        NULL, NULL, kCFDateFormatterLongStyle, kCFDateFormatterLongStyle);

    value = CFDictionaryGetValue(ticket, kMDItemLastUsedDate);

    if (value && dateFormatter) {
      printf("trying to parse date \n");
      CFDateRef curDate =
          CFDateFormatterCreateDateFromString(NULL, dateFormatter, value, NULL);
      printf("got cur date\n");
      if (curDate)
        CFDictionarySetValue(attributes, kMDItemLastUsedDate, curDate);
    }
    success = TRUE;
  }
  // contents are kMDItemTextContent

  CFReadStreamClose(stream);
  CFRelease(stream);
  CFRelease(fileURL);
  return success;
}