<?php
// Simple file logger
function log_start() {
  $id = bin2hex(random_bytes(4));
  $GLOBALS['req_start'] = microtime(true);
  header("X-Request-Id: $id");
  return $id;
}
function log_end($id, $status=200) {
  $ms = round((microtime(true)-$GLOBALS['req_start'])*1000);
  $ip = $_SERVER['REMOTE_ADDR'] ?? '-';
  $path = $_SERVER['REQUEST_URI'] ?? '-';
  $plan = $_SERVER['HTTP_X_DEWEMOJI_PLAN'] ?? ($GLOBALS['bucket_plan'] ?? '-');
  $bucket = $GLOBALS['bucket_id'] ?? '-';
  $ua = $_SERVER['HTTP_USER_AGENT'] ?? '-';
  $ref = $_SERVER['HTTP_REFERER'] ?? '-';
  $errorMsg = '';
  if ($status >= 400) {
    $errorMsg = $GLOBALS['json_error_msg'] ?? '';
  }
  $line = sprintf("[%s] %s %s %s plan=%s bucket=%s %d %dms ua=\"%s\" ref=\"%s\"%s\n",
    gmdate('c'), $id, $ip, $path, $plan, $bucket, $status, $ms, $ua, $ref,
    $errorMsg ? " error=\"".addslashes($errorMsg)."\"" : ''
  );
  $logFile = __DIR__.'/../../storage/logs/access.log';
  @mkdir(dirname($logFile), 0775, true);
  error_log($line, 3, $logFile);
}