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var _ = require('lodash'),
check = require('check-types');
module.exports = {
'USA': {
'local': getFirstProperty(['borough', 'localadmin', 'locality', 'neighbourhood', 'county']),
'regional': getUsState,
'country': getFirstProperty(['country_a'])
},
'GBR': {
'local': getFirstProperty(['neighbourhood', 'county', 'localadmin', 'locality', 'macroregion', 'region']),
'regional': getFirstProperty(['county','country','region'])
},
'SGP': {
'local': getFirstProperty(['neighbourhood', 'region', 'county', 'localadmin', 'locality']),
'regional': getFirstProperty(['county','country','region'])
},
'SWE': {
'local': getFirstProperty(['neighbourhood', 'region', 'county', 'localadmin', 'locality']),
'regional': getFirstProperty(['country'])
},
'default': {
'local': getFirstProperty(['localadmin', 'locality', 'neighbourhood', 'county', 'macroregion', 'region']),
'regional': getFirstProperty(['country'])
}
};
// find the first field of record that has a non-empty value that's not already in labelParts
function getFirstProperty(fields) {
return function(record, labelParts) {
for (var i = 0; i < fields.length; i++) {
var fieldValue = record[fields[i]];
if (check.nonEmptyString(fieldValue) && !_.includes(labelParts, fieldValue)) {
labelParts.push( fieldValue );
return labelParts;
}
}
return labelParts;
};
}
// this function is exclusively used for figuring out which field to use for US States
// 1. if a US state is the most granular bit of info entered, the label should contain
// the full state name, eg: Pennsylvania, USA
// 2. otherwise, the state abbreviation should be used, eg: Lancaster, PA, USA
// 3. if for some reason the abbreviation isn't available, use the full state name
function getUsState(record, labelParts) {
if ('region' === record.layer && record.region) {
// add full state name when state is the most granular piece of info
labelParts.push(record.region);
} else if (record.region_a) {
// otherwise just add the region code when available
labelParts.push(record.region_a);
} else if (record.region) {
// add the full name when there's no region code available ()
labelParts.push(record.region);
}
return labelParts;
}