// **************************************************************************
//
//  (C) Copyright 2009   Swiss SIMTEC AG
//
// **************************************************************************
//
//  $HeadURL$
//  $LastChangedBy$
//  $LastChangedDate$
//  $LastChangedRevision$
//
// **************************************************************************
 
#pragma once

#include <QString>
#include <QStringList>

#include "IntegerCalculator.hpp"
#include "logger.h"
#include "LogViewXdrStandardType.hpp"

namespace N_LogView
{
  class LogViewXdrElement;
  class LogViewXdrStruct;
  class LogViewField;
  class LogViewXdrValue;
  class LogViewXdrType;

  /**
   * @author alois.wismer
   * @version 1.0
   * @created 05-Feb-2010 10:46:58
   */
  class LogViewXdrParser : public N_SST::IntegerCalculator
  {
  public:

    /**
     * Defines in which structure the parser is parsing now
     * 
     * @author alois.wismer
     * @version 1.0
     * @created 08-Feb-2010 17:44:52
     */
    enum E_ParseState
    {
      e_ParseMain,
      e_ParseStruct,
      e_ParseEnum,
      e_ParseUnion
    };


    LogViewXdrParser();
    ~LogViewXdrParser();


    /**
     * 
     * @param a_fileName
     */
    void parseX_File(const QString& a_fileName);

    /**
     * This function delivers the name of the telegram.
     * The telegram will be defined with a_telegramId.
     * The name will be delivered as return-parameter.
     * If the telegram was not found, error-texts instead names will be returned.
     * 
     * @param a_telegramId
     */
    QString getTelegramName(int a_telegramId) const;

    /**
     * This function delivers the structure name of the telegram.
     * The telegram will be defined with a_telegramId.
     * The structure name will be delivered as return-parameter
     * If the telegram was not found, error-texts instead names will be returned.
     *
     * @param a_telegramId
     */
    QString getStructName(int a_telegramId) const;

    /**
     * 
     * @param a_name
     * @param a_value
     */
    bool getDefine(const QString& a_name, int64_t& a_value) const;

    /**
     * 
     * @param a_name
     */
    const LogViewXdrElement* getElement(const QString& a_name) const;

  protected:

    QString m_MessageBoxTitle;
    bool m_WithinComment;
    QString m_Line;
    uint32_t m_LineNbr;
    QString m_Filename;
    bool m_DoReadUntilSemicolon;
    QStringList m_WordList;
    int m_WordListIndex;
    /**
     * This will be used to suppress an error-message when parsing the overall
     * telegram structure.
     */
    QString m_UnionType;
    std::map<QString, LogViewXdrElement*> m_ElementMap;

    LogViewXdrStruct *m_ActElement;

    E_ParseState m_State;

    std::map<QString, LogViewXdrValue> m_DefinesMap;

    std::map<int, LogViewXdrType> m_TelegramMap;

    /**
     * 
     * @param a_name
     * @param a_dataSize
     * @param a_realSize
     * @param a_kind
     * @param a_dynArraySizeMethod
     * @param a_byteOrder
     */
    void addStandardType(const QString& a_name,
                         const uint16_t a_dataSize,
                         const uint16_t a_realSize,
                         const LogViewXdrStandardType::E_ValueKind a_kind,
                         const LogViewXdrStandardType::E_DynArraySizeMethod a_dynArraySizeMethod = LogViewXdrStandardType::e_DynArrayMsgLength,
                         const LogViewXdrStandardType::E_ByteOrder a_byteOrder = LogViewXdrStandardType::e_ByteOrderBigEndian);

    /**
     * 
     * @param a_line
     */
    QString removeComments(const QString& a_line);

    /**
     * 
     * @param a_line
     */
    void parseTypedef(const QString &a_line);

    /**
     * 
     * @param a_line
     */
    void parseDefine(const QString &a_line);

    /**
     * 
     * @param a_line
     * @param a_enumSize    The size in bytes of an enum-value
     */
    void parseEnum(const QString &a_line, const uint16_t a_enumSize = 4);

    /**
     * 
     * @param a_line
     */
    void parseStruct(const QString &a_line);

    /**
     * 
     * @param a_line
     */
    void parseUnion(const QString& a_line);

    /**
     * 
     * @param a_line
     * @param a_name
     * @param a_value
     */
    bool parseEnumLine(const QString& a_line, QString& a_name, QString& a_value) const;

    /**
     * Shows an error-message containing the line-nbr, the line itself and an
     * additional error-text
     * 
     * @param a_errorText
     */
    void showErrorMessage(const QString& a_errorText) const;

    /**
     * 
     * @param a_calcText
     * @param a_isOk
     */
    int64_t calcValue(const QString& a_calcText, bool& a_isOk);

    /**
     * 
     * @param a_variableName
     * @param a_value
     */
    bool getVariableValue(const std::string& a_variableName, int64_t& a_value) const override;

    /**
     * 
     * @param a_name
     * @param a_dynArrayMsgOffset    This offset will be used for the dyn-array-method
     * e_DynArrayMsgLength. Here the value in <x> will be subtracted from the message-
     * length to get the size of the dynamic array.
     */
    uint16_t parseArray(QString& a_name, uint16_t& a_dynArrayMsgOffset) const;

    /**
     * 
     * @param a_word
     * @param a_doIncrement
     */
    bool isNextWord(const char *a_word, const bool a_doIncrement = true);

    /**
     * 
     * @param a_line
     */
    void fillWordList(const QString& a_line);

    /**
     * 
     * @param a_errorText
     */
    QString getNextWord(const char *a_errorText = nullptr);

    /**
     * 
     * @param a_ok
     */
    QString getNextType(bool& a_ok);

    /**
     * 
     * @param a_enumStruct
     */
    QString getNextEnum(const LogViewXdrStruct*& a_enumStruct);

    /**
     * 
     * @param a_fieldText
     * @param a_firstBit
     * @param a_lastBit
     */
    bool parseBitfield(const QString& a_fieldText, int16_t& a_firstBit, int16_t& a_lastBit) const;

    /**
     * adds an element to the element-map if it does not already exist within this map.
     * 
     * If it exists, an error-message will be raised instead and false will be
     * returned.
     * 
     * @param a_name
     * @param a_element
     */
    bool addToElementMap(const QString& a_name, LogViewXdrElement* a_element);

  private:
    /**
      * The logger object
      */
    NGL::INGLLogger &m_logger;

  };

}