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var peliasQuery = require('pelias-query'),
defaults = require('./defaults');
//------------------------------
// reverse geocode query
//------------------------------
var query = new peliasQuery.layout.FilteredBooleanQuery();
// mandatory matches
query.score( peliasQuery.view.boundary_country, 'must' );
// scoring boost
query.sort( peliasQuery.view.sort_distance );
// non-scoring hard filters
query.filter( peliasQuery.view.boundary_circle );
// --------------------------------
function generateQuery( clean ){
var vs = new peliasQuery.Vars( defaults );
// set defaults
vs.set({
'size': 1
});
// set size
if( clean.size ){
vs.var( 'size', clean.size );
}
// set radius, default to 500km if not specified in request
var radius = 500;
if (clean.hasOwnProperty('boundary_circle_radius')) {
radius = clean.boundary_circle_radius;
}
// focus point centroid
if( clean.lat && clean.lon ){
vs.set({
// focus point to score by distance
'focus:point:lat': clean.lat,
'focus:point:lon': clean.lon,
// bounding circle
'boundary:circle:lat': clean.lat,
'boundary:circle:lon': clean.lon,
'boundary:circle:radius': radius + 'km'
});
}
// boundary country
if( clean.boundary && clean.boundary.country ){
vs.set({
'boundary:country': clean.boundary.country
});
}
return query.render( vs );
}
module.exports = generateQuery;