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var GeoJSON = require('geojson'),
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extent = require('geojson-extent'),
outputGenerator = require('./outputGenerator');
function search( docs ){
// emit a warning if the doc format is invalid
// @note: if you see this error, fix it ASAP!
function warning(){
console.error( 'error: invalid doc', __filename );
return false; // remove offending doc from results
}
// flatten & expand data for geojson conversion
var geodata = docs.map( function( doc ){
// something went very wrong
if( !doc ) { return warning(); }
var output = {};
// provide metadata to consumer
output.id = doc._id;
output.layer = doc._type;
// map center_point
if( !doc.center_point ) { return warning(); }
output.lat = parseFloat( doc.center_point.lat );
output.lng = parseFloat( doc.center_point.lon );
// map name
if( !doc.name || !doc.name.default ) { return warning(); }
output.name = doc.name.default;
// map admin values
if( doc.alpha3 ){ output.alpha3 = doc.alpha3; }
if( doc.admin0 ){ output.admin0 = doc.admin0; }
if( doc.admin1 ){ output.admin1 = doc.admin1; }
if( doc.admin1_abbr ){ output.admin1_abbr = doc.admin1_abbr; }
if( doc.admin2 ){ output.admin2 = doc.admin2; }
if( doc.local_admin ){ output.local_admin = doc.local_admin; }
if( doc.locality ){ output.locality = doc.locality; }
if( doc.neighborhood ){ output.neighborhood = doc.neighborhood; }
// generate region-specific text string
output.text = outputGenerator( doc );
return output;
// filter-out invalid entries
}).filter( function( doc ){
return doc;
});
// convert to geojson
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var geojson = GeoJSON.parse( geodata, { Point: ['lat', 'lng'] });
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// add bbox
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geojson.bbox = extent( geojson ) || undefined;
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return geojson;
}
module.exports.search = search;