<?php

function game_server($request)
{
  $sck = fsockopen('localhost', 9999);
  if (!$sck) {
    return 'Can\'t connect to oware daemon.';
  }
  fwrite($sck, $request);
  while (!feof($sck)) {
    $response .= fread($sck, 1024);
  }
  fclose($sck);  
  $response = explode("\n", $response); 
  $result = array_shift($response);

  if ($result == "Error") {
    return $response[0];
  }
  else {
    return $response;
  }
}

class Game {
  public $id;
  public $p1;
  public $p2;
  public $p1_cookie;
  public $p2_cookie;
  public $captured;
  public $moves;
  public $houses;
  public $status;
  public $error;
  public $active_player;
}

function game_list()
{
  $result = Array();
  $response = game_server('L');
  foreach ($response as $item) {
    if ($item != "") {
      $items = explode(" ", $item);
      $game = new Game();
      $game->id = $items[0];
      $game->p1 = $items[1];
      $game->p2 = $items[2];
      $game->p1_cookie = $items[3];
      $game->p2_cookie = $items[4];
      $game->moves = $items[5];
      $result[$game->id] = $game;
    }
  }
  return $result;
}

function game_new()
{
  $response = game_server('N');
  return $response[0];
}

function game_join($igame)
{
  $response = game_server("J $igame");
  return $response[0];
}

function game_command($igame, $cookie, $command)
{
  $response = game_server("C $igame $cookie $command");
  if (is_string($response)) {
    return false;
  }
  $result = new Game();
  $result->id = $igame;
  $i = 0;
  $result->finished = $response[$i++];
  $result->moves = $response[$i++];
  $result->active_player = $response[$i++];
  $result->captured[false][0] = $response[$i++];
  $result->captured[false][1] = $response[$i++];
  for ($j = 0; $j < 12; $j++) {
    $result->houses[false][$j] = $response[$i++];
  }
  $result->status = $response[$i++];
  $result->error = $response[$i++];
  
  # Inverted results
  $result->captured[true][0] = $result->captured[false][1];
  $result->captured[true][1] = $result->captured[false][0];
  for ($j = 0; $j < 6; $j++) {
    $result->houses[true][$j] = $result->houses[false][$j + 6];
    $result->houses[true][$j + 6] = $result->houses[false][$j];
  }

  return $result;
}

function game_delete($igame)
{
  $response = game_server("J $igame");
  $cookie = $response[0];
  game_command($igame, $cookie, 'q');
}

function redirect($location)
{
  header("Status: 302 Redirect\r\n");
  header("Location: $location\r\n\r\n");
  exit(0);
}

function house_image($house)
{
  if ($house > 18) { $house = 18; }
  $files = glob(dirname(__SCRIPT__) . "/images/$house/*.png");
  $file = $files[rand(0, count($files) - 1)];
  return $file;
}

?>