#ifndef DOTCONFPP_H
#define DOTCONFPP_H

#include <list>

#include <stdarg.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include <errno.h>

#include <sys/types.h>
#include <sys/stat.h>

#include "mempool.h"

class DOTCONFDocument;

class DOTCONFDocumentNode
{
    friend class DOTCONFDocument;

    private:

        DOTCONFDocumentNode* previousNode;
        DOTCONFDocumentNode* nextNode;
        DOTCONFDocumentNode* parentNode;
        DOTCONFDocumentNode* childNode;
        char** values;
        int valuesCount;
        char* name;
        const DOTCONFDocument* document;
        int lineNum;
        char* fileName;
        bool closed;

        void pushValue(char* _value);

    public:

        DOTCONFDocumentNode();
        ~DOTCONFDocumentNode();

        const char* getConfigurationFileName() const { return fileName; }
        int getConfigurationLineNumber() const { return lineNum; }

        const DOTCONFDocumentNode* getNextNode() const { return nextNode; }
        const DOTCONFDocumentNode* getPreviuosNode() const { return previousNode; }
        const DOTCONFDocumentNode* getParentNode() const { return parentNode; }
        const DOTCONFDocumentNode* getChildNode() const { return childNode; }
        const char* getValue(int index = 0) const;
        const char* getName() const { return name; }
        const DOTCONFDocument * getDocument() const { return document; }
};

class DOTCONFDocument
{
    public:

        enum CaseSensitive
        {
            CASESENSITIVE,
            CASEINSENSETIVE
        };

    protected:

        AsyncDNSMemPool* mempool;

    private:

        typedef std::list<char*> CharList;
        typedef std::list<DOTCONFDocumentNode*> NodeList;

        DOTCONFDocumentNode* curParent;
        DOTCONFDocumentNode* curPrev;
        int curLine;
        bool quoted;
        NodeList nodeTree;
        CharList requiredOptions;
        CharList processedFiles;
        FILE* file;
        char* fileName;
        CharList words;
        int (*cmp_func)(const char*, const char*);

        int checkRequiredOptions();
        int parseLine();
        int parseFile(DOTCONFDocumentNode* _parent = NULL);
        int checkConfig(const NodeList::iterator& from);
        int cleanupLine(char* line);
        char* getSubstitution(char* macro, int lineNum);
        int macroSubstitute(DOTCONFDocumentNode* tagNode, int valueIndex);

    protected:

        virtual void error(int lineNum, const char* fileName, const char* fmt, ...) ATTR_PRINTF(4,5);

    public:

        DOTCONFDocument(CaseSensitive caseSensitivity = CASESENSITIVE);
        virtual ~DOTCONFDocument();

        int setContent(const char* _fileName);

        void setRequiredOptionNames(const char** requiredOptionNames);
        const DOTCONFDocumentNode * getFirstNode() const;
        const DOTCONFDocumentNode * findNode(const char* nodeName, const DOTCONFDocumentNode* parentNode = NULL, const DOTCONFDocumentNode* startNode = NULL) const;
};

#endif