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/*============================================================================
  CMake - Cross Platform Makefile Generator
  Copyright 2014 Kitware, Inc., Insight Software Consortium

  Distributed under the OSI-approved BSD License (the "License");
  see accompanying file Copyright.txt for details.

  This software is distributed WITHOUT ANY WARRANTY; without even the
  implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
  See the License for more information.
============================================================================*/

#include "cmWIXPatch.h"

#include <CPack/cmCPackGenerator.h>

cmWIXPatch::cmWIXPatch(cmCPackLog* logger)
  : Logger(logger)
{
}

bool cmWIXPatch::LoadFragments(std::string const& patchFilePath)
{
  cmWIXPatchParser parser(Fragments, Logger);
  if (!parser.ParseFile(patchFilePath.c_str())) {
    cmCPackLogger(cmCPackLog::LOG_ERROR, "Failed parsing XML patch file: '"
                    << patchFilePath << "'" << std::endl);
    return false;
  }

  return true;
}

void cmWIXPatch::ApplyFragment(std::string const& id,
                               cmWIXSourceWriter& writer)
{
  cmWIXPatchParser::fragment_map_t::iterator i = Fragments.find(id);
  if (i == Fragments.end())
    return;

  const cmWIXPatchElement& fragment = i->second;

  this->ApplyElementChildren(fragment, writer);

  Fragments.erase(i);
}

void cmWIXPatch::ApplyElementChildren(const cmWIXPatchElement& element,
                                      cmWIXSourceWriter& writer)
{
  for (cmWIXPatchElement::child_list_t::const_iterator j =
         element.children.begin();
       j != element.children.end(); ++j) {
    cmWIXPatchNode* node = *j;

    switch (node->type()) {
      case cmWIXPatchNode::ELEMENT:
        ApplyElement(dynamic_cast<const cmWIXPatchElement&>(*node), writer);
        break;
      case cmWIXPatchNode::TEXT:
        writer.AddTextNode(dynamic_cast<const cmWIXPatchText&>(*node).text);
        break;
    }
  }
}

void cmWIXPatch::ApplyElement(const cmWIXPatchElement& element,
                              cmWIXSourceWriter& writer)
{
  writer.BeginElement(element.name);

  for (cmWIXPatchElement::attributes_t::const_iterator i =
         element.attributes.begin();
       i != element.attributes.end(); ++i) {
    writer.AddAttribute(i->first, i->second);
  }

  this->ApplyElementChildren(element, writer);

  writer.EndElement(element.name);
}

bool cmWIXPatch::CheckForUnappliedFragments()
{
  std::string fragmentList;
  for (cmWIXPatchParser::fragment_map_t::const_iterator i = Fragments.begin();
       i != Fragments.end(); ++i) {
    if (!fragmentList.empty()) {
      fragmentList += ", ";
    }

    fragmentList += "'";
    fragmentList += i->first;
    fragmentList += "'";
  }

  if (!fragmentList.empty()) {
    cmCPackLogger(cmCPackLog::LOG_ERROR,
                  "Some XML patch fragments did not have matching IDs: "
                    << fragmentList << std::endl);
    return false;
  }

  return true;
}