/* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
   file Copyright.txt or https://cmake.org/licensing for details.  */
#ifndef cmCPackWIXPatchParser_h
#define cmCPackWIXPatchParser_h

#include "cmCPackLog.h"

#include "cmXMLParser.h"

#include <map>
#include <vector>

struct cmWIXPatchNode
{
    enum Type
    {
        TEXT,
        ELEMENT
    };

    virtual ~cmWIXPatchNode();

    virtual Type type() = 0;
};

struct cmWIXPatchText : public cmWIXPatchNode
{
    virtual Type type();

    std::string text;
};

struct cmWIXPatchElement : cmWIXPatchNode
{
    virtual Type type();

    ~cmWIXPatchElement();

    typedef std::vector<cmWIXPatchNode*>       child_list_t;
    typedef std::map<std::string, std::string> attributes_t;

    std::string  name;
    child_list_t children;
    attributes_t attributes;
};

/** \class cmWIXPatchParser
 * \brief Helper class that parses XML patch files (CPACK_WIX_PATCH_FILE)
 */
class cmWIXPatchParser : public cmXMLParser
{
public:
    typedef std::map<std::string, cmWIXPatchElement> fragment_map_t;

    cmWIXPatchParser(fragment_map_t& Fragments, cmCPackLog* logger);

private:
    virtual void StartElement(const std::string& name, const char** atts);

    void StartFragment(const char** attributes);

    virtual void EndElement(const std::string& name);

    virtual void CharacterDataHandler(const char* data, int length);

    virtual void ReportError(int line, int column, const char* msg);

    void ReportValidationError(std::string const& message);

    bool IsValid() const;

    cmCPackLog* Logger;

    enum ParserState
    {
        BEGIN_DOCUMENT,
        BEGIN_FRAGMENTS,
        INSIDE_FRAGMENT
    };

    ParserState State;

    bool Valid;

    fragment_map_t& Fragments;

    std::vector<cmWIXPatchElement*> ElementStack;
};

#endif
