friendica-addons/geocoordinates/geocoordinates.php

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<?php
/**
* Name: Geocoordinates
* Description: Use the OpenCage Geocoder http://geocoder.opencagedata.com to resolve nearest populated location for given latitude, longitude. Derived from "geonames"
* Version: 0.1
* Author: Michael Vogel <https://pirati.ca/profile/heluecht>
*/
use Friendica\App;
use Friendica\Core\Hook;
use Friendica\Core\Logger;
use Friendica\Core\Renderer;
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use Friendica\DI;
function geocoordinates_install()
{
Hook::register('post_local', 'addon/geocoordinates/geocoordinates.php', 'geocoordinates_post_hook');
Hook::register('post_remote', 'addon/geocoordinates/geocoordinates.php', 'geocoordinates_post_hook');
}
function geocoordinates_resolve_item(array &$item)
{
if ((!$item['coord']) || ($item['location'])) {
return;
}
$key = DI::config()->get('geocoordinates', 'api_key');
if ($key == '') {
return;
}
$language = DI::config()->get('geocoordinates', 'language');
if ($language == '') {
$language = 'de';
}
$coords = explode(' ', $item['coord']);
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if (count($coords) < 2) {
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return;
}
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$coords[0] = round($coords[0], 5);
$coords[1] = round($coords[1], 5);
$result = DI::cache()->get('geocoordinates:' . $language . ':' . $coords[0] . '-' . $coords[1]);
if (!is_null($result)) {
$item['location'] = $result;
return;
}
$s = DI::httpClient()->fetch('https://api.opencagedata.com/geocode/v1/json?q=' . $coords[0] . ',' . $coords[1] . '&key=' . $key . '&language=' . $language);
if (!$s) {
Logger::info('API could not be queried');
return;
}
$data = json_decode($s);
if ($data->status->code != '200') {
Logger::info('API returned error ' . $data->status->code . ' ' . $data->status->message);
return;
}
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if (($data->total_results == 0) || (count($data->results) == 0)) {
Logger::info('No results found for coordinates ' . $item['coord']);
return;
}
$item['location'] = $data->results[0]->formatted;
Logger::info('Got location for coordinates ' . $coords[0] . '-' . $coords[1] . ': ' . $item['location']);
if ($item['location'] != '') {
DI::cache()->set('geocoordinates:' . $language.':' . $coords[0] . '-' . $coords[1], $item['location']);
}
}
function geocoordinates_post_hook(App $a, &$item)
{
geocoordinates_resolve_item($item);
}
function geocoordinates_addon_admin(App $a, string &$o)
{
$t = Renderer::getMarkupTemplate('admin.tpl', 'addon/geocoordinates/');
$o = Renderer::replaceMacros($t, [
'$submit' => DI::l10n()->t('Save Settings'),
'$api_key' => ['api_key', DI::l10n()->t('API Key'), DI::config()->get('geocoordinates', 'api_key'), ''],
'$language' => ['language', DI::l10n()->t('Language code (IETF format)'), DI::config()->get('geocoordinates', 'language'), ''],
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]);
}
function geocoordinates_addon_admin_post(App $a)
{
DI::config()->set('geocoordinates', 'api_key', trim($_POST['api_key'] ?? ''));
DI::config()->set('geocoordinates', 'language', trim($_POST['language'] ?? ''));
}