<?php
 
 require_once(__DIR__ . '/TelnyxMock.php');
 
 define("MOCK_MINIMUM_VERSION", "0.1.0");
 
 if (\Telnyx\TelnyxMock::start()) {
     register_shutdown_function('\Telnyx\TelnyxMock::stop');
 
     define("MOCK_HOST", "localhost");
     define("MOCK_PORT", \Telnyx\TelnyxMock::getPort());
 } else {
     define("MOCK_HOST", getenv("TELNYX_MOCK_HOST") ?: "mock");
     define("MOCK_PORT", getenv("TELNYX_MOCK_PORT") ?: 12111);
 }
 
 define("MOCK_URL", "http://" . MOCK_HOST . ":" . MOCK_PORT);
 
 // Send a request to telnyx-mock
 $ch = curl_init(MOCK_URL);
 curl_setopt($ch, CURLOPT_HEADER, 1);
 curl_setopt($ch, CURLOPT_NOBODY, 1);
 curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
 $resp = curl_exec($ch);
 
 if (curl_errno($ch)) {
     echo "Couldn't reach telnyx-mock at `" . MOCK_HOST . ":" . MOCK_PORT . "`. Is " .
          "it running? Please see README for setup instructions.\n";
     exit(1);
 }
 
 // Retrieve the Telnyx-Mock-Version header
 $version = null;
 $headers = explode("\n", $resp);
 foreach ($headers as $header) {
     $pair = explode(":", $header, 2);
     if ($pair[0] == "Telnyx-Mock-Version") {
         $version = trim($pair[1]);
     }
 }
 
 if ($version === null) {
     echo "Could not retrieve Telnyx-Mock-Version header. Are you sure " .
          "that the server at `" . MOCK_HOST . ":" . MOCK_PORT . "` is a telnyx-mock " .
          "instance?";
     exit(1);
 }
 
 if ($version != "master" && version_compare($version, MOCK_MINIMUM_VERSION) == -1) {
     echo "Your version of telnyx-mock (" . $version . ") is too old. The minimum " .
          "version to run this test suite is " . MOCK_MINIMUM_VERSION . ". " .
          "Please see its repository for upgrade instructions.\n";
     exit(1);
 }
 
 require_once __DIR__ . '/TestCase.php';