<?php

/**
 * @global
 */
function macro_DATE($proc, $spec)
{
  $stamp = strtotime($spec);
  if($stamp === false)
    throw new Exception("Bad date: $spec");
  return $stamp;
}

/**
 * @global
 */
function macro_INTERVAL($proc, $spec)
{
  $in = DateInterval::createFromDateString($spec);
  if(!$in)
    throw new Exception("Bad time interval: $spec");

  $sec = ($in->y * 365 * 24 * 60 * 60) +
         ($in->m * 30 * 24 * 60 * 60) +
         ($in->d * 24 * 60 * 60) +
         ($in->h * 60 * 60) +
         ($in->i * 60) +
         $in->s;
  if($sec <= 0)
    throw new Exception("Bad resulting interval in seconds '$sec' for spec '$spec'");
  return $sec;
}

/**
 * @global
 */
function macro_ENUM_OR($proc)
{
  global $GAME_ROOT;

  $args = func_get_args();
  array_shift($args);

  $class = array_shift($args);

  $opts = 0;
  for($i=0;$i<sizeof($args);++$i)
  {
    $opts |= constant("$class::" . $args[$i]);
  }
  return $opts;
}

/**
 * @global
 */
function macro_PRINTF($proc)
{
  $args = func_get_args();
  array_shift($args);

  return '"'.call_user_func_array("sprintf", $args).'"';
} 

/**
 * @global
 */
function macro_FMT($proc)
{
  $args = func_get_args();
  array_shift($args);

  $res = array();
  foreach($args as $arg)
    $res[] = $arg;

  if(preg_match_all('~\{(\d+)[^\}]*\}~', $res[0], $matches))
  {
    $indices = $matches[1];
    if(count($indices) != (count($res)-1))
      throw new Exception("Too few args for: '{$res[0]}'");
    sort($indices);
    $indices = array_unique($indices);
    $prev = -1;
    foreach($indices as $idx)
    {
      $idx = 1*$idx;
      if(($idx - $prev) > 1)
        throw new Exception("Format indices gap: '{$res[0]}'");
      $prev = $idx;
    }
  }

  return $res;
}

/**
 * @raw_args
 */
function macro_Q($proc, $value)
{
  if(strpos(ltrim($value), '[') === 0)
    return $value;
  else
   return "\"$value\"";
}

/**
 * @global
 */
function macro_SELF_CONF_ID($jsm)
{
  $file = $jsm->getRootFile();
  $proto_id = 0;
  $alias = "";
  if(!\taskman\config_get_header($file, $proto_id, $alias))
    throw new Exception("No valid header for config: $file");
  return $proto_id;
}

/**
 * @global
 */
function macro_SELF_SHORT_NAME($jsm)
{
  $file = $jsm->getRootFile();
  return str_replace(".conf.js", "", basename($file));
}

/**
 * @global @raw_args
 */
function macro_BOOL($jsm, $expr)
{
  $res = jsm_eval_string_value($jsm, $expr);

  return $res == 0 ? "false" : "true";
}

/**
 * @global
 */
function macro_IS_DEV($jsm)
{
  return \taskman\getor("GAME_IS_DEV", 0);
}

/**
 * @global
 */
function macro_PROP($jsm, $expr)
{
  return \taskman\get($expr);
}

/**
 * @global
 */
function macro_VCLASS($proc, $class)
{
  return '"vclass__" : ' . constant("$class::CLASS_ID");
}

/**
 * @global
 */
function macro_ITEM($proc, $proto_id, $amount)
{
  return array('proto_id' => $proto_id, 'amount' => $amount);
}

/**
 * @global @raw_args
 */
function macro_UNWRAP($jsm, $content)
{
  $content = trim($content);
  $content = ltrim($content, '{');
  $content = rtrim($content, '}');
  return $content;
}

function _array_merge_recursive_distinct(array $array1, array $array2)
{
  $merged = $array1;

  foreach($array2 as $key => $value)
  {
    if(is_array($value) && isset($merged[$key]) && is_array($merged[$key]))
      $merged[$key] = _array_merge_recursive_distinct($merged[$key], $value);
    else
      $merged[$key] = $value;
  }

  return $merged;
}

/**
 * @global @raw_args
 */
function macro_OVERRIDE($jsm, $content)
{
  $items = \jzon_parse($content);
  if(!is_array($items))
    throw new Exception("OVERRIDE contents not an array");
  if(sizeof($items) != 2)
    throw new Exception("OVERRIDE array size is not 2, it's " . sizeof($items));

  $merged = _array_merge_recursive_distinct($items[0], $items[1]);

  $json = json_encode($merged, JSON_UNESCAPED_LINE_TERMINATORS | JSON_UNESCAPED_SLASHES);
  $json = ltrim($json, '{');
  $json = rtrim($json, '}');

  return $json;
}