/*
 * Author:          Patrick-Christopher Mattulat
 * Company:         Lynar Studios
 * E-Mail:          webmaster@lynarstudios.com
 * Created:         2020-11-25
 * Changed:         2022-05-13
 *
 * */

#ifndef LS_STD_XML_PARSER_HPP
#define LS_STD_XML_PARSER_HPP

#include <ls_std/core/Class.hpp>
#include <ls_std/core/types/Types.hpp>
#include "XmlDocument.hpp"
#include "XmlParseMode.hpp"
#include "XmlParseParameter.hpp"
#include <list>

namespace ls
{
  namespace std
  {
    namespace io
    {
      class XmlParser : public ls::std::core::Class
      {
        public:

          explicit XmlParser(const ::std::shared_ptr<ls::std::io::XmlDocument> &_document);
          ~XmlParser() override = default;

          ::std::shared_ptr<ls::std::io::XmlDocument> getDocument();
          void parse(const ls::std::core::type::byte_field &_data);
          void setDocument(const ::std::shared_ptr<ls::std::io::XmlDocument> &_document);

        protected:

          static ::std::pair<::std::string, ::std::string> _readAttribute_(const ls::std::core::type::byte_field &_data);
          static ::std::list<::std::pair<::std::string, ::std::string>> _readAttributes_(ls::std::core::type::byte_field _data);

        private:

          uint8_t currentLevel{};
          ::std::shared_ptr<ls::std::io::XmlDocument> document{};
          uint8_t maxLevel{};
          ls::std::io::XmlParseMode mode{};
          ::std::list<ls::std::io::XmlParseParameter> parseParameters{};

          void _analyze(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _assignDocument(const ::std::shared_ptr<ls::std::io::XmlDocument> &_document);
          static bool _contains(const ::std::string &_text, const ::std::string &_searchText);
          static ::std::shared_ptr<ls::std::io::XmlDeclaration> _createDeclaration(const ::std::list<::std::pair<::std::string, ::std::string>> &_attributes);
          static ::std::shared_ptr<ls::std::io::XmlNode> _createNode(const ::std::list<::std::pair<::std::string, ::std::string>> &_attributes, const ::std::string &_name);
          static bool _endsWith(const ::std::string &_text, const ::std::string &_ending);
          static ::std::pair<::std::string, ::std::string> _findAttribute(const ::std::list<::std::pair<::std::string, ::std::string>> &_attributes, const ::std::string &_name);
          static size_t _findAttributeEndPosition(const ls::std::core::type::byte_field &_data);
          static ls::std::core::type::byte_field _getNextTagString(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _isClosingTag(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _isDeclaration(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _isOpeningTag(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _isValue(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _mergeNodes();
          void _mergeChildrenToParentNode(const ::std::shared_ptr<ls::std::io::XmlNode> &_parent, ::std::list<ls::std::io::XmlParseParameter>::iterator &_iterator, uint8_t _parentLevel);
          void _mergeNodesOnCurrentLevel();
          void _parse(const ls::std::core::type::byte_field &_data);
          static ::std::pair<::std::string, ::std::string> _parseAttribute(const ls::std::core::type::byte_field &_data);
          static ::std::list<::std::pair<::std::string, ::std::string>> _parseAttributes(ls::std::core::type::byte_field _data);
          size_t _parseClosingTag(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          size_t _parseDeclaration(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          size_t _parseOpeningTag(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          static ls::std::core::type::byte_field _parseTagName(const ls::std::core::type::byte_field &_data);
          size_t _parseValue(const ls::std::core::type::byte_field &_data, ::std::string::size_type _index);
          void _reset();
          void _setMaxLevel();
      };
    }
  }
}

#endif