#ifndef SASS_SOURCE_MAP_H

#define SASS_SOURCE_MAP_H

#include <string>

#include <vector>

#include "ast_fwd_decl.hpp"

#include "base64vlq.hpp"

#include "position.hpp"

#include "mapping.hpp"

#define VECTOR_PUSH(vec, ins) vec.insert(vec.end(), ins.begin(), ins.end())

#define VECTOR_UNSHIFT(vec, ins) vec.insert(vec.begin(), ins.begin(), ins.end())

namespace Sass {

  class Context;

  class OutputBuffer;

  class SourceMap {

  public:

    std::vector<size_t> source_index;

    SourceMap();

    SourceMap(const std::string& file);

    void append(const Offset& offset);

    void prepend(const Offset& offset);

    void append(const OutputBuffer& out);

    void prepend(const OutputBuffer& out);

    void add_open_mapping(const AST_Node_Ptr node);

    void add_close_mapping(const AST_Node_Ptr node);

    std::string render_srcmap(Context &ctx;;

    ParserState remap(const ParserState& pstate);

  private:

    std::string serialize_mappings();

    std::vector<Mapping> mappings;

    Position current_position;

public:

    std::string file;

private:

    Base64VLQ base64vlq;

  };

  class OutputBuffer {

    public:

      OutputBuffer(void)

      : buffer(""),

        smap()

      { }

    public:

      std::string buffer;

      SourceMap smap;

  };

}

#endif