<?php

// This file contains the controller part of vichan

// don't bother with that unless you use smart build or advanced build
// you can use those parts for your own implementations though :^)

defined('TINYBOARD') or exit;

function sb_board($b, $page = 1) { global $config, $build_pages; $page = (int)$page;
  if ($page < 1) return false;
  if (!openBoard($b)) return false;
  if ($page > $config['max_pages']) return false;
  $config['try_smarter'] = true;
  $build_pages = array($page);
  buildIndex("skip");
  return true;
}

function sb_api_board($b, $page = 0) { $page = (int)$page;
  return sb_board($b, $page + 1);
}

function sb_thread($b, $thread, $slugcheck = false) { global $config; $thread = (int)$thread;
  if ($thread < 1) return false;

  if (!preg_match('/^'.$config['board_regex'].'$/u', $b)) return false;

  if (Cache::get("thread_exists_".$b."_".$thread) == "no") return false;

  $query = prepare(sprintf("SELECT MAX(`id`) AS `max` FROM ``posts_%s``", $b));
  if (!$query->execute()) return false;

  $s = $query->fetch(PDO::FETCH_ASSOC);
  $max = $s['max'];

  if ($thread > $max) return false;

  $query = prepare(sprintf("SELECT `id` FROM ``posts_%s`` WHERE `id` = :id AND `thread` IS NULL", $b));
  $query->bindValue(':id', $thread);
  
  if (!$query->execute() || !$query->fetch(PDO::FETCH_ASSOC) ) {
    Cache::set("thread_exists_".$b."_".$thread, "no", 3600);
    return false;
  }

  if ($slugcheck && $config['slugify']) {
    global $request;

    $link = link_for(array("id" => $thread), $slugcheck === 50, array("uri" => $b));
    $link = "/".$b."/".$config['dir']['res'].$link;

    if ($link != $request) {
      header("Location: $link", true, 301);
      die();
    }
  }

  if ($slugcheck == 50) { // Should we really generate +50 page? Maybe there are not enough posts anyway
    global $request;
    $r = str_replace("+50", "", $request);
    $r = substr($r, 1); // Cut the slash

    if (file_exists($r)) return false;
  }
  
  if (!openBoard($b)) return false;
  buildThread($thread);
  return true;
}

function sb_thread_slugcheck($b, $thread) {
  return sb_thread($b, $thread, true);
}
function sb_thread_slugcheck50($b, $thread) {
  return sb_thread($b, $thread, 50);
}

function sb_api($b) { global $config, $build_pages;
  if (!openBoard($b)) return false;
  $config['try_smarter'] = true;
  $build_pages = array(-1);
  buildIndex();
  return true;
}

function sb_ukko() {
  Vichan\Functions\Theme\rebuild_theme("ukko", "post-thread");
  return true;
}

function sb_catalog($b) {
  if (!openBoard($b)) return false;

  Vichan\Functions\Theme\rebuild_theme("catalog", "post-thread", $b); 
  return true;
}

function sb_recent() {
  Vichan\Functions\Theme\rebuild_theme("recent", "post-thread");
  return true;
}

function sb_sitemap() {
  Vichan\Functions\Theme\rebuild_theme("sitemap", "all");
  return true;
}