<?php
error_reporting(E_ALL);

LOQEDCreateBridgeWebhook('http://192.168.0.111:3777/hook/test/', 'bridge.ip.address', 'KEY');

function LOQEDCreateBridgeWebhook(string $webhook, string $bridge, string $deviceConfigKey) {
    $endpoint = 'http://' . $bridgeIP . '/webhooks';

    $postdata['url'] = $webhook;

    /* ensure data is an integer (not ='0' but =0) */
    $postdata_bitmap['trigger_state_changed_open'] = 0;
    $postdata_bitmap['trigger_state_changed_latch'] = 1;
    $postdata_bitmap['trigger_state_changed_night_lock'] = 0;
    $postdata_bitmap['trigger_state_changed_unknown'] = 1;
    $postdata_bitmap['trigger_state_goto_open'] = 0;
    $postdata_bitmap['trigger_state_goto_latch'] = 0;
    $postdata_bitmap['trigger_state_goto_night_lock'] = 0;
    $postdata_bitmap['trigger_battery'] = 0;
    $postdata_bitmap['trigger_online_status'] = 0;    
    $postdata_bitmap = array_reverse($postdata_bitmap); // Not left to right, but right to left.
    $bitmap = '';
    foreach ($postdata_bitmap as $value){
        $bitmap .= $value;
    }
    $bitmap = bindec($bitmap);
    
    $timeStamp = time();
    $hash = hash('sha256', $webhook . pack("N", $bitmap) . pack ("J", $timeStamp) . base64_decode($deviceConfigKey)); // Outputs hash in hex

    $postdata = array_merge($postdata, $postdata_bitmap);

    $postdata = json_encode($postdata);
    
    $curl = curl_init();
    curl_setopt_array($curl, [
        CURLOPT_PORT => 8081,
        CURLOPT_POSTFIELDS => $postdata,
        CURLOPT_CUSTOMREQUEST   => 'POST',
        CURLOPT_URL             => $endpoint,
        CURLOPT_HEADER          => true,
        CURLOPT_HTTPHEADER      => [
            'HASH: ' . $hash,
            'TIMESTAMP: ' .$timeStamp,
            'Content-Type: application/json'],
        CURLOPT_RETURNTRANSFER    => true,
        CURLOPT_FAILONERROR       => false,
        CURLOPT_TIMEOUT           => 10]);


    $response = curl_exec($curl);
    $httpCode = 0;
    echo 'Response: ' . $response;
    if (!curl_errno($curl)) {
        $httpCode = curl_getinfo($curl, CURLINFO_RESPONSE_CODE);
        echo 'Response http code: ' . $httpCode;
        $header_size = curl_getinfo($curl, CURLINFO_HEADER_SIZE);
        $header = substr($response, 0, $header_size);
    } else {
        $error_msg = curl_error($curl);
        echo 'An error has occurred: ' . json_encode($error_msg);
    }
    curl_close($curl);
}

?>