<?php
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/**
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* Google Maps Integration
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* File: /inc/integrations/GoogleMapsIntegration.php
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*/
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namespace JVBase\integrations\services;
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use JVBase\integrations\Admin;
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use JVBase\Instance;
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use JVBase\integrations\Integrations;
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use JVBase\integrations\Requests;
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if (!defined('ABSPATH')) {
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exit;
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}
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class GoogleMaps extends Integrations
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{
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use Admin, Instance, Requests;
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protected function __construct()
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{
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$this->service_name = 'maps';
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$this->title = 'Google Maps';
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$this->icon = 'map-pin';
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$this->apiBase = 'https://maps.googleapis.com/maps/api/';
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$this->defineFields();
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$this->defineInstructions();
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parent::__construct();
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// Auto-enqueue maps script when needed
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add_action('wp_enqueue_scripts', [$this, 'maybeEnqueueMapsScript']);
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}
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protected function defineFields():void
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{
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$pub = $this->addField('public_key', 'Maps Platform API Key', 'text', 'manage_options');
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$pub->setHint('Restrict this key by HTTP referrers for security. Used for displaying maps in browsers.');
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$pub->setSubType('password');
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$pub->setRequired();
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$priv = $this->addField('private_key', 'Geocoding & Places API Key', 'text', 'manage_options');
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$priv->setHint('Restrict this key by IP Addresses. Used for geocoding and server-side operations.');
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$priv->setRequired();
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$priv->setSubType('password');
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$map_id = $this->addField('map_id', 'Map ID', 'text', 'manage_options');
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$map_id->setHint('Required for custom styling. Create a Map ID in Google Cloud Console -> Maps -> Map Management.');
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$zoom = $this->addField('default_zoom', 'Default Zoom', 'text', 'manage_options');
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$zoom->setSubType('number');
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$zoom->setDefault(11);
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$zoom->setMin(1);
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$zoom->setMax(20);
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$lng = $this->addField('default_lng', 'Default Longitude', 'text', 'manage_options');
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$lng->setSubType('number');
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$lng->setDefault(-113.4938);
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$lat = $this->addField('default_lat', 'Default Latitude', 'text', 'manage_options');
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$lng->setSubType('number');
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$lng->setDefault(53.5461);
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}
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protected function defineInstructions():void
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{
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$this->instructions = [
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'Create two API keys in <a href="https://console.cloud.google.com/apis/credentials" target="_blank">Google Cloud Console</a>',
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'Enable <strong>Geocoding API + Places API</strong> for frontend key, restricted by your server IP address',
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'Enable <strong>Maps Platform API</strong> for server key, restricted by your website domain',
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];
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}
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protected function defineActions():void
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{
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$this->addAction(
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'reverse_geocode',
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[$this, 'processReverseGeocode']
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);
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$this->addAction(
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'geocode',
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[$this, 'processGeocode']
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);
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}
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public function processReverseGeocode(array $data):array
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{
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if (!array_key_exists('lat', $data) || !array_key_exists('lng', $data)) {
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return $this->response(false, 'Invalid coordinates provided', $data);
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}
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$lat = floatval($data['lat']);
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$lng = floatval($data['lng']);
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$result = $this->reverseGeocode($lat, $lng);
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if ($result) {
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return $this->response(true, 'Successfully reversed Geocode', ['data'=> $result]);
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}
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return $this->response(false, 'Reverse geocoding failed');
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}
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public function processGeocode(array $data):array
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{
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if (!array_key_exists('address', $data)) {
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return $this->response(false, 'No address provided');
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}
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$result = $this->geocodeAddress(sanitize_text_field($data['address']));
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if ($result) {
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return $this->response(true, 'Successfully geocoded address', ['data' => $result]);
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}
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return $this->response(false, 'Geocoding failed');
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}
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protected function initialize(): void
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{
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// Register Google Maps API
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wp_register_script(
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'google-maps-api',
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$this->getJavaScriptApiUrl(['places', 'geometry', 'marker']),
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[],
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null,
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[
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'in_footer' => true,
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'strategy' => 'async'
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]
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);
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// Register our maps handler
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wp_register_script(
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'jvb-maps',
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JVB_URL . 'assets/js/min/maps.min.js',
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['google-maps-api'],
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'1.0.0',
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[
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'in_footer' => true,
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'strategy' => 'defer'
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]
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);
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}
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public function getJavaScriptApiUrl(array $libraries = ['places', 'marker', 'geometry']): string
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{
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if (empty($this->getPublicKey())) {
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return '';
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}
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$params = [
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'key' => $this->getPublicKey(),
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'libraries' => implode(',', $libraries),
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'callback' => 'initGoogleMaps',
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];
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return $this->apiBase . 'js?' . http_build_query($params);
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}
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public function maybeEnqueueMapsScript():void
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{
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if (!$this->isSetUp()) {
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return;
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}
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if (!$this->shouldEnqueueMaps()) {
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return;
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}
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// Add initialization script
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wp_add_inline_script('google-maps-api',
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sprintf(
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'
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// Set map defaults
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window.jvbMapDefaults = {
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lat: %s,
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lng: %s,
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zoom: %s,
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mapId: "%s"
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};
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// Google Maps initialization callback
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window.initGoogleMaps = function() {
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// Dispatch ready event
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document.dispatchEvent(new Event("googleMapsReady"));
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// Call any registered callbacks
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if (window.googleMapsCallbacks && Array.isArray(window.googleMapsCallbacks)) {
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window.googleMapsCallbacks.forEach(function(callback) {
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if (typeof callback === "function") {
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callback();
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}
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});
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window.googleMapsCallbacks = [];
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}
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};
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// Initialize callback queue
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window.googleMapsCallbacks = window.googleMapsCallbacks || [];
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',
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$this->getDefaultLat(),
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$this->getDefaultLng(),
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$this->getDefaultZoom(),
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esc_js($this->getMapID())
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),
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'before');
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// Enqueue scripts
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wp_enqueue_script('google-maps-api');
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wp_enqueue_script('jvb-maps');
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// Add AJAX URL and nonce for JavaScript AJAX calls
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wp_localize_script('jvb-maps', 'jvbMapsAjax', [
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'ajaxurl' => admin_url('admin-ajax.php'),
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'nonce' => wp_create_nonce('jvb_integration_' . $this->service_name),
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'service' => $this->service_name
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]);
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}
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protected function shouldEnqueueMaps():bool
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{
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//See if it's a singular post/page that has the map feature flagged
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if (is_singular() && get_post_meta(get_the_ID(), BASE.'has_map', true) === true) {
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return true;
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}
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if (is_tax() && get_term_meta(get_queried_object_id(), BASE . 'has_map', true) === true) {
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return true;
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}
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// Allow filtering
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return apply_filters('jvb_should_enqueue_maps', false);
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}
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public function getServiceDescription():string
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{
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return 'Allows for a map field, utilizing Google Maps';
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}
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/**********************************************************************
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* UTILITY
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**********************************************************************/
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protected function getPrivateKey():string|false
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{
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return $this->loadCredentials()['private_key']??false;
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}
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protected function getPublicKey():string|false
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{
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return $this->loadCredentials()['public_key']??false;
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}
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protected function getMapID():string|false
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{
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return $this->loadCredentials()['map_id']??false;
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}
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protected function getDefaultZoom():string|false
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{
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return $this->loadCredentials()['default_zoom']??false;
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}
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protected function getDefaultLng():string|false
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{
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return $this->loadCredentials()['default_lng']??false;
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}
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protected function getDefaultLat():string|false
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{
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return $this->loadCredentials()['default_lat']??false;
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}
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/**
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* Generate map application links
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*/
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public function generateMapLinks(float $lat, float $lng, ?string $address = null): array
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{
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$query = $address ? urlencode($address) : "{$lat},{$lng}";
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return [
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'google' => "https://www.google.com/maps/search/?api=1&query={$query}",
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'apple' => "https://maps.apple.com/?ll={$lat},{$lng}",
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'waze' => "https://waze.com/ul?ll={$lat},{$lng}&navigate=yes"
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];
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}
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private function parseAddressComponents(array $components):array
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{
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$parsed = [];
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$check = [
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'street_number' => 'long_name',
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'street' => 'long_name',
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'city' => 'long_name',
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'province' => 'short_name',
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'country' => 'short_name',
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'postal_code' => 'long_name'
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];
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foreach ($components as $c) {
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$types = $c['types'];
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foreach ($check as $ch => $index) {
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if (in_array($ch, $types)) {
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$parsed[$ch] = $c[$index];
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}
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}
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}
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if (!empty($parsed['street_number']) && !empty($parsed['street'])) {
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$parsed['street'] = $parsed['street_number'] . ' ' . $parsed['street'];
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}
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return $parsed;
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}
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public function reverseGeocode(float $lat, float $lng):array|false
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{
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if (!$this->isSetUp()) {
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return false;
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}
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$params = [
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'latlng' => "{$lat},{$lng}",
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'key' => $this->getPrivateKey()
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];
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return $this->getRequest(
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sprintf(
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'%s/geocode/json',
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$this->apiBase,
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),
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$params
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);
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}
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protected function handleGeocodeResponse(array $data, string $method):array
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{
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if (!array_key_exists('status', $data) || $data['status'] !== 'OK' || !array_key_exists('results', $data) || empty($data['results'])) {
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return $this->response(false, 'Invalid response provided');
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}
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$result = $data['results'][0];
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return $this->response(true, 'Successfully reversed geocode',[
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'lat' => $result['geometry']['location']['lat'],
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'lng' => $result['geometry']['location']['lng'],
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'formatted_address' => $result['formatted_address'],
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'place_id' => $result['place_id']??'',
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'components' => $this->parseAddressComponents($result['address_compenents']??[])
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]);
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}
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public function geocodeAddress(string $address):array|false
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{
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if (!$this->isSetUp()) {
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return false;
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}
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$params = [
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'address' => $address,
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'key' => $this->getPrivateKey()
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];
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return $this->getRequest(
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sprintf(
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'%s/geocode/json',
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$this->apiBase
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)
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);
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}
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protected function getRequestHeaders(): array
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{
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return [
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'Accept' => 'application/json',
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'Content-Type' => 'application/json'
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];
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}
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protected function handleResponse(\WP_Error|array $response, string $method, string $endpoint): array
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{
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if (is_wp_error($response) && $response->get_error_message() === 'rate_limit_exceeded') {
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return $this->response(false, 'Rate limit exceeded');
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}
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$endpoint = str_replace($this->apiBase, '', $endpoint);
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return match ($endpoint) {
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'/geocode/json' => $this->handleGeocodeResponse($response, $method),
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default => $this->response(false, 'Unhandled response for '.$endpoint.' endpoint, with method: '.$method),
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};
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}
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protected function performConnectionTest():bool
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{
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if (!$this->isSetUp()) {
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return false;
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}
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$test = 'Edmonton, Alberta, Canada';
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$result = $this->geocodeAddress($test);
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return $result['success'];
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}
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}
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