var GeoJSON = require('geojson'), 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 var geojson = GeoJSON.parse( geodata, { Point: ['lat', 'lng'] }); // add bbox geojson.bbox = extent( geojson ) || undefined; return geojson; } module.exports.search = search;