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/*****************************************************************************
*
* This file is part of Mapnik (c++ mapping toolkit)
*
* Copyright (C) 2025 Artem Pavlenko
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*
*****************************************************************************/
#ifndef MAPNIK_SQLITE_DATASOURCE_HPP
#define MAPNIK_SQLITE_DATASOURCE_HPP
// mapnik
#include <mapnik/datasource.hpp>
#include <mapnik/params.hpp>
#include <mapnik/query.hpp>
#include <mapnik/feature.hpp>
#include <mapnik/geometry/box2d.hpp>
#include <mapnik/coord.hpp>
#include <mapnik/feature_layer_desc.hpp>
#include <mapnik/wkb.hpp>
#include <mapnik/value/types.hpp>
#include <mapnik/datasource_plugin.hpp>
// stl
#include <vector>
#include <string>
#include <memory>
// sqlite
#include "sqlite_connection.hpp"
DATASOURCE_PLUGIN_DEF(sqlite_datasource_plugin, sqlite);
class sqlite_datasource : public mapnik::datasource
{
public:
sqlite_datasource(mapnik::parameters const& params);
virtual ~sqlite_datasource();
datasource::datasource_t type() const override;
static char const* name();
mapnik::featureset_ptr features(mapnik::query const& q) const override;
mapnik::featureset_ptr features_at_point(mapnik::coord2d const& pt, double tol = 0) const override;
mapnik::box2d<double> envelope() const override;
std::optional<mapnik::datasource_geometry_t> get_geometry_type() const override;
mapnik::layer_descriptor get_descriptor() const override;
private:
// Fill init_statements with any statements
// needed to attach auxillary databases
void parse_attachdb(std::string const& attachdb) const;
std::string populate_tokens(std::string const& sql, double pixel_width, double pixel_height) const;
mapnik::box2d<double> extent_;
bool extent_initialized_;
mapnik::datasource::datasource_t type_;
std::string dataset_name_;
std::shared_ptr<sqlite_connection> dataset_;
std::string table_;
std::string fields_;
std::string metadata_;
std::string geometry_table_;
std::string geometry_field_;
std::string index_table_;
std::string key_field_;
int row_offset_;
mapnik::value_integer row_limit_;
// TODO - also add to postgis.input
std::string const intersects_token_;
std::string const pixel_width_token_;
std::string const pixel_height_token_;
mapnik::layer_descriptor desc_;
mapnik::wkbFormat format_;
bool twkb_encoding_;
bool use_spatial_index_;
bool has_spatial_index_;
bool using_subquery_;
mutable std::vector<std::string> init_statements_;
};
#endif // MAPNIK_SQLITE_DATASOURCE_HPP
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