var parser = require('addressit'); var extend = require('extend'); var get_layers = require('../helper/layers'); var delim = ','; module.exports = function(query) { var tokenized = query.split(/[ ,]+/); var hasNumber = /\d/.test(query); var getAdminPartsBySplittingOnDelim = function(query) { // naive approach - for admin matching during query time // split 'flatiron, new york, ny' into 'flatiron' and 'new york, ny' var delimIndex = query.indexOf(delim); var address = {}; if ( delimIndex !== -1 ) { address.name = query.substring(0, delimIndex); address.admin_parts = query.substring(delimIndex + 1).trim(); } return address; }; var getTargetLayersWhenAddressParsingIsNotNecessary = function(query) { var address = {}; // set target_layer if input length <= 3 characters if (query.length <= 3 ) { // no address parsing required address.target_layer = get_layers(['admin']); } else if (tokenized.length === 1 || (tokenized.length < 3 && !hasNumber)) { // no need to hit address layers if there's only one (or two) token(s) address.target_layer = get_layers(['admin', 'poi']); } return address.target_layer ? address : null; }; var getAddressParts = function(query) { // address parsing var address = parser( query ); // set target_layer if input suggests no address if (address.text === address.regions.join(' ') && !hasNumber) { address.target_layer = get_layers(['admin', 'poi']); } return address; }; var addressWithAdminParts = getAdminPartsBySplittingOnDelim(query); var addressWithTargetLayers= getTargetLayersWhenAddressParsingIsNotNecessary(query); var addressWithAddressParts= !addressWithTargetLayers ? getAddressParts(query) : {}; var parsedAddress = extend(addressWithAdminParts, addressWithTargetLayers, addressWithAddressParts); var address_parts = [ 'name', 'number', 'street', 'city', 'state', 'country', 'postalcode', 'regions', 'admin_parts', 'target_layer' ]; var parsed_input = {}; address_parts.forEach(function(part){ if (parsedAddress[part]) { parsed_input[part] = parsedAddress[part]; } }); return parsed_input; }; // parsed_input = { // name : parsedAddress.name, // number : parsedAddress.number, // street : parsedAddress.street, // city : parsedAddress.city, // state : parsedAddress.state, // country: parsedAddress.country, // postalcode : parsedAddress.postalcode, // regions: parsedAddress.regions, // admin_parts: parsedAddress.admin_parts, // target_layer: parsedAddress.target_layer // }