<?php

function strip_name(string $name): string {
  if (str_contains($name, "$")) {
    return explode("$", $name, 2)[1];
  }

  return $name;
}

function generate_id(): string {
  return hash("sha256", uniqid("", true));
}

function get_pop($val, string $type=""): string {
  global $repopulate;

  if ($repopulate[$val]) {
    if ($type == "date") {
      return "value=\"" . date("Y-m-d", $repopulate[$val]) . "\"";
    }

    return $repopulate[$val];
  }

  return "";
}

function get_token(string $username, string $password_hash): string {
  return $username . "-" . hash("sha256", $password_hash . $username);
}

function validate_token(string $token): bool {
}

function is_logged_in(): false | array {
  $token = $_COOKIE["token"];

  if (!$token) {
    return false;
  }

  global $db;

  $u = explode("-", $token, 2)[0];
  $user_object = pg_select(
    $db, "users", array(
      "username" => $u
    )
  );

  if ($user_object && get_token($user_object[0]["username"], $user_object[0]["password_hash"]) === $token) {
    return $user_object[0];
  }

  return false;
}

?>