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var extend = require('extend');
/**
- P is a preferred English name
- Q is a preferred name (in other languages)
- V is a well-known (but unofficial) variant for the place
(e.g. "New York City" for New York)
- S is either a synonym or a colloquial name for the place
(e.g. "Big Apple" for New York), or a version of the name which
is stripped of accent characters.
- A is an abbreviation or code for the place (e.g. "NYC" for New
York)
*/
// config mapping of old names to new ones
var NAME_MAP = {
'number': 'housenumber',
'zip': 'postalcode',
'alpha3': 'country_a',
'admin0': 'country',
'admin1': 'region',
'admin1_abbr': 'region_a',
'admin2': 'county',
'local_admin': 'localadmin',
'neighborhood': 'neighbourhood'
};
function setup() {
return renamePlacenames;
}
function renamePlacenames(req, res, next) {
// do nothing if no result data set
if (!res || !res.data) {
return next();
}
// loop through data items and remap placenames
res.data = res.data.map(renameProperties);
next();
}
function renameProperties(place) {
var newPlace = {};
Object.keys(place).forEach(function (property) {
if (property === 'address') {
extend(newPlace, renameProperties(place[property]));
}
else {
renameProperty(place, newPlace, property);
}
});
return newPlace;
}
function renameProperty(oldObj, newObj, property) {
if (!oldObj.hasOwnProperty(property)) {
return;
}
newObj[(NAME_MAP[property] || property)] = oldObj[property];
}
module.exports = setup;