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#pragma once
#include "geometry/latlon.hpp"
#include "geometry/mercator.hpp"
#include "geometry/rect2d.hpp"
#include "base/string_utils.hpp"
#include "std/limits.hpp"
#include "std/string.hpp"
#include "std/vector.hpp"
class TownsDumper
{
public:
TownsDumper();
template <typename TElement>
void CheckElement(TElement const & em)
{
if (em.type != TElement::EntityType::Node)
return;
uint64_t population = 1;
bool town = false;
bool capital = false;
int admin_level = numeric_limits<int>::max();
for (auto const & tag : em.Tags())
{
string key(tag.key), value(tag.value);
if (key == "population")
{
if (!strings::to_uint64(value, population))
continue;
}
else if (key == "admin_level")
{
if (!strings::to_int(value, admin_level))
continue;
}
else if (key == "capital" && value == "yes")
{
capital = true;
}
else if (key == "place" && (value == "city" || value == "town"))
{
town = true;
}
}
// Ignore regional capitals.
if (capital && admin_level > 2)
capital = false;
if (town || capital)
m_records.emplace_back(em.lat, em.lon, em.id, capital, population);
}
void Dump(string const & filePath);
private:
void FilterTowns();
struct Town
{
ms::LatLon point;
uint64_t id;
bool capital;
uint64_t population;
Town(double lat, double lon, uint64_t id, bool isCapital, uint64_t population)
: point(lat, lon), id(id), capital(isCapital), population(population)
{
}
bool operator<(Town const & rhs) const { return population < rhs.population; }
m2::RectD GetLimitRect() const
{
return m2::RectD(MercatorBounds::FromLatLon(point), MercatorBounds::FromLatLon(point));
}
};
vector<Town> m_records;
};
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