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var GeoJSON = require('geojson');
function suggest( 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 || !doc.payload ) return warning();
// split payload id string in to geojson properties
if( 'string' !== typeof doc.payload.id ) return warning();
var idParts = doc.payload.id.split('/');
doc.type = idParts[0];
doc.id = idParts[1];
// split payload geo string in to geojson properties
if( 'string' !== typeof doc.payload.geo ) return warning();
var geoParts = doc.payload.geo.split(',');
doc.lat = parseFloat( geoParts[1] );
doc.lng = parseFloat( geoParts[0] );
// remove payload from doc
delete doc.payload;
return doc;
// filter-out invalid entries
}).filter( function( doc ){
return doc;
});
// convert to geojson
return GeoJSON.parse( geodata, { Point: ['lat', 'lng'] } );
}
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 ){
var output = {};
// something went very wrong
if( !doc ) return warning();
// 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.admin0 ){ output.admin0 = doc.admin0; }
if( doc.admin1 ){ output.admin1 = doc.admin1; }
if( doc.admin2 ){ output.admin2 = doc.admin2; }
// map suggest output
if( doc.suggest && doc.suggest.output ){
output.text = doc.suggest.output;
}
return output;
// filter-out invalid entries
}).filter( function( doc ){
return doc;
});
// convert to geojson
return GeoJSON.parse( geodata, { Point: ['lat', 'lng'] } );
}
module.exports.suggest = suggest;
module.exports.search = search;