<?php

/**
 * Mikio Plugin
 * 
 * @version    1.0
 * @license    GPL 2 (http://www.gnu.org/licenses/gpl.html)
 * @author     James Collins <james.collins@outlook.com.au>
 */

if (!defined('DOKU_INC')) die();

require_once('icons/icons.php');

if (!function_exists('glob_recursive')) {
  function glob_recursive($pattern, $flags = 0)
  {
    $files = glob($pattern, $flags);
    foreach (glob(dirname($pattern) . '/*', GLOB_ONLYDIR | GLOB_NOSORT) as $dir) {
      $files = array_merge($files, glob_recursive($dir . '/' . basename($pattern), $flags));
    }
    return $files;
  }
}

class action_plugin_mikioplugin extends DokuWiki_Action_Plugin
{
  public function register(Doku_Event_Handler $controller)
  {
    $controller->register_hook('TPL_METAHEADER_OUTPUT', 'BEFORE', $this, '_load');
  }

  public function _load(Doku_Event $event, $param)
  {
    global $conf;
    global $MIKIO_ICONS;

    $baseDir = str_replace('\\', '/', DOKU_BASE . 'lib/plugins' . str_replace(dirname(dirname(__FILE__)), '', dirname(__FILE__)) . '/');
    $stylesheets = [];
    $less = [];
    $scripts = [];

    if (is_array($MIKIO_ICONS)) {
      $icons = array();
      foreach ($MIKIO_ICONS as $icon) {
        if (isset($icon['name']) && isset($icon['css']) && isset($icon['insert'])) {
          $icons[] = $icon;

          if ($icon['css'] != '') {
            if (strpos($icon['css'], '//') === FALSE) {
              $stylesheets[] = $baseDir . 'icons/' . $icon['css'];
            } else {
              $stylesheets[] = $icon['css'];
            }
          }
        }
      }
      $MIKIO_ICONS = $icons;
    } else {
      $MIKIO_ICONS = [];
    }

    $stylesList = glob_recursive(str_replace('\\', '/', 'lib/plugins' . str_replace(dirname(dirname(__FILE__)), '', dirname(__FILE__)) . '/styles/*'));
    if ($stylesList !== FALSE) {
      foreach ($stylesList as $value) {
        $filename = strtolower($value);
        if (substr($filename, -5) == '.less' || substr($filename, -4) == '.css') {
          $stylesheets[] = DOKU_BASE . $filename;
        }
      }
    }

    $stylesheets = array_unique($stylesheets);

    $tpl_supported = false;
    if($conf['template'] === 'mikio' && file_exists(tpl_incdir() . 'template.info.txt')) {
      $tpl_info = [];
      $tpl_data = file_get_contents(tpl_incdir() . 'template.info.txt');
      foreach(preg_split("/(\r\n|\n|\r)/", $tpl_data) as $line){
        if(preg_match("/([a-z]*)\s+(.*)/", $line, $matches)) {
          $tpl_info[$matches[1]] = $matches[2];
        }
      }
      
      if(array_key_exists('date', $tpl_info)) {
        $date = array_map('intval', explode('-', $tpl_info['date']));
        if(count($date) === 3) {
          // Date of mikio template is > 2022-10-12
          if($date[0] > 2022 || ($date[0] == 2022 && ($date[1] > 10 || ($date[1] == 10 && $date[2] > 12)))) {
            $tpl_supported = true;
          }
        }
      }      
    }

    if($tpl_supported === false) {
      array_unshift($stylesheets, $baseDir . 'assets/variables.css');
    }

    array_unshift($stylesheets, $baseDir . 'assets/plugin.css');

    // css
    foreach ($stylesheets as $style) {
      if (strtolower(substr($style, -5)) == '.less') {
        $less[] = $style;
      } else {
        array_unshift($event->data['link'], array(
          'type' => 'text/css',
          'rel'  => 'stylesheet',
          'href' => $style
        ));
      }
    }

    $lessSorted = [];
    foreach ($less as $key => $value) {
      if (substr(strtolower($value), -14) == 'variables.less') {
        $lessSorted[] = $value;
        unset($less[$key]);
      }
    }

    $lessSorted = array_merge($lessSorted, $less);
    $lessPath = implode(',', $lessSorted);

    if(strlen($lessPath) > 0) {
      array_unshift($event->data['link'], array(
        'type' => 'text/css',
        'rel'  => 'stylesheet',
        'href' => $baseDir . 'css.php?css=' . str_replace($baseDir, '', $lessPath)
      ));
    }

    // js
    foreach ($scripts as $script) {
      $event->data['script'][] = array(
        'type'  => 'text/javascript',
        '_data' => '',
        'src'   => $script
      );
    }
  }
}