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#pragma once

#include <istream>

#include <pdal/Reader.hpp>
#include <pdal/plugin.hpp>

extern "C" int32_t TextReader_ExitFunc();
extern "C" PF_ExitFunc TextReader_InitPlugin();

namespace pdal
{

class PDAL_DLL TextReader : public Reader
{
public:
    static void * create();
    static int32_t destroy(void *);
    std::string getName() const;

    TextReader() : m_istream(NULL)
    {}

private:
    /**
      Initialize the reader by opening the file and reading the header line.
      Closes the file on completion.

      \param table  Point table being initialized.
    */
    virtual void initialize(PointTableRef table);

    /**
      Add arguments to those accepted at the command line.
      \param args  Argument list to modify.
    */
    virtual void addArgs(ProgramArgs& args);

    /**
      Add dimensions found in the header line to the layout.

      \param layout  Layout to which the dimenions are added.
    */
    virtual void addDimensions(PointLayoutPtr layout);

    /**
      Reopen the file in preparation for reading.

      \param table  Point table to make ready.
    */
    virtual void ready(PointTableRef table);

    /**
      Read up to numPts points into the \ref view.

      \param view  PointView in which to insert point data.
      \param numPts  Maximum number of points to read.
      \return  Number of points read.
    */
    virtual point_count_t read(PointViewPtr view, point_count_t numPts);

    /**
      Close input file.

      \param table  PointTable we're done with.
    */
    virtual void done(PointTableRef table);

    /**
      Read a single point from the input.

      \param point  Reference to point to fill with data.
      \return  False if no point could be read.
    */
    virtual bool processOne(PointRef& point);

    bool fillFields();

private:
    char m_separator;
    std::istream *m_istream;
    StringList m_dimNames;
    Dimension::IdList m_dims;
    StringList m_fields;
    size_t m_line;
};

} // namespace pdal
