<?php
// $Id: token.pages.inc,v 1.13 2010-12-18 01:53:33 davereid Exp $

/**
 * @file
 * User page callbacks for the token module.
 */

/**
 * Theme a tree table.
 *
 * @ingroup themeable
 */
function theme_tree_table($variables) {
  foreach ($variables['rows'] as &$row) {
    $row += array('class' => array());
    if (!empty($row['parent'])) {
      $row['class'][] = 'child-of-' . drupal_clean_css_identifier($row['parent']);
      unset($row['parent']);
    }
  }

  if (count($variables['rows'])) {
    drupal_add_library('token', 'treeTable');
  }

  return theme('table', $variables);
}

/**
 * Provide a 'tree' display of nested tokens.
 *
 * @ingroup themeable
 */
function theme_token_tree($variables) {
  $token_types = $variables['token_types'];
  $info = token_get_info();

  if ($token_types == 'all') {
    $token_types = array_keys($info['types']);
  }
  elseif ($variables['global_types']) {
    $token_types = array_merge($token_types, token_get_global_token_types());
  }

  $header = array(
    t('Name'),
    t('Token'),
    t('Description'),
  );
  $rows = array();

  foreach ($info['types'] as $type => $type_info) {
    if (!in_array($type, $token_types)) {
      continue;
    }

    if (count($token_types) > 1) {
      $row = _token_token_tree_format_row($type, $type_info, TRUE);
      unset($row['data']['value']);
      $rows[] = $row;
    }

    $options = array(
      'flat' => TRUE,
      'restricted' => $variables['show_restricted'],
      'depth' => $variables['recursion_limit'],
    );
    $tree = token_build_tree($type, $options);
    foreach ($tree as $token => $token_info) {
      if (!empty($token_info['restricted']) && empty($variables['show_restricted'])) {
        continue;
      }
      if (count($token_types) > 1 && !isset($token_info['parent'])) {
        $token_info['parent'] = $type;
      }
      $row = _token_token_tree_format_row($token, $token_info);
      unset($row['data']['value']);
      $rows[] = $row;
    }
  }

  drupal_add_js(drupal_get_path('module', 'token') . '/token.js');
  drupal_add_css(drupal_get_path('module', 'token') . '/token.css');

  $table_options = array(
    'header' => $header,
    'rows' => $rows,
    'attributes' => array('class' => array('token-tree')),
    'empty' => t('No tokens available.'),
  );
  if ($variables['click_insert']) {
    $table_options['caption'] = t('Click a token to insert it into the field you\'ve last clicked.');
    $table_options['attributes']['class'][] = 'token-click-insert';
  }

  return theme('tree_table', $table_options);
}

/**
 * Build a row in the token tree.
 */
function _token_token_tree_format_row($token, array $token_info, $is_group = FALSE) {
  $row = array(
    'id' => _token_clean_css_identifier($token),
    'class' => array(),
    'data' => array(
      'name' => $token_info['name'],
      'token' => '',
      'value' => '',
      'description' => $token_info['description'],
    ),
  );

  if ($is_group) {
    // This is a token type/group.
    $row['class'][] = 'token-group';
  }
  else {
    // This is a token.
    $row['data']['token'] = array(
      'data' => $token,
      'class' => array('token-key'),
    );
    if (isset($token_info['value'])) {
      $row['data']['value'] = $token_info['value'];
    }
    if (!empty($token_info['parent'])) {
      $row['parent'] = _token_clean_css_identifier($token_info['parent']);
    }
  }

  return $row;
}

/**
 * Wrapper function for drupal_clean_css_identifier() for use with tokens.
 *
 * This trims any brackets from the token and also cleans the colon character
 * to a hyphen.
 *
 * @see drupal_clean_css_identifier().
 */
function _token_clean_css_identifier($id) {
  return drupal_clean_css_identifier('token-' . trim($id, '[]'), array(' ' => '-', '_' => '-', '/' => '-', '[' => '-', ']' => '', ':' => '-'));
}

/**
 * Menu callback; prints the available tokens and values for an object.
 */
function token_devel_token_object($entity_type, $entity) {
  $header = array(
    t('Token'),
    t('Value'),
  );
  $rows = array();

  $options = array(
    'flat' => TRUE,
    'values' => TRUE,
    'data' => array($entity_type => $entity),
  );
  $tree = token_build_tree($entity_type, $options);
  foreach ($tree as $token => $token_info) {
    if (!empty($token_info['restricted'])) {
      continue;
    }
    if (!isset($token_info['value']) && !empty($token_info['parent']) && !isset($tree[$token_info['parent']]['value'])) {
      continue;
    }
    $row = _token_token_tree_format_row($token, $token_info);
    unset($row['data']['description']);
    unset($row['data']['name']);
    $rows[] = $row;
  }

  drupal_add_js(drupal_get_path('module', 'token') . '/token.js');
  drupal_add_css(drupal_get_path('module', 'token') . '/token.css');

  $table_options = array(
    'header' => $header,
    'rows' => $rows,
    'attributes' => array('class' => array('token-tree')),
    'empty' => t('No tokens available.'),
  );
  return theme('tree_table', $table_options);
}

function token_autocomplete() {
  $args = func_get_args();
  $string = implode('/', $args);

  $token_info = token_info();

  preg_match_all('/\[([^\s\]:]*):?([^\s\]]*)?\]?/', $string, $matches);
  $types = $matches[1];
  $tokens = $matches[2];

  foreach ($types as $index => $type) {
    if (!empty($tokens[$index]) || isset($token_info['types'][$type])) {
      token_autocomplete_token($type, $tokens[$index]);
    }
    else {
      token_autocomplete_type($type);
    }
  }

}

function token_autocomplete_type($string = '') {
  $token_info = token_info();
  $types = $token_info['types'];
  $matches = array();

  foreach ($types as $type => $info) {
    if (!$string || strpos($type, $string) === 0) {
      $type_key = "[{$type}:";
       $matches[$type_key] = levenshtein($type, $string);
    }
  }

  if ($string) {
    asort($matches);
  }
  else {
    ksort($matches);
  }

  $matches = drupal_map_assoc(array_keys($matches));
  drupal_json_output($matches);
}

function token_autocomplete_token($token_type) {
  $args = func_get_args();
  array_shift($args);
  $string = trim(implode('/', $args));
  $string = substr($string, strrpos($string, '['));

  $token_type = $token_type['type'];
  $matches = array();

  if (!drupal_strlen($string)) {
    $matches["[{$token_type}:"] = 0;
  }
  else {
    $depth = max(1, substr_count($string, ':'));
    $tree = token_build_tree($token_type, array('flat' => TRUE, 'depth' => $depth));
    foreach (array_keys($tree) as $token) {
      if (strpos($token, $string) === 0) {
        $matches[$token] = levenshtein($token, $string);
        if (isset($tree[$token]['children'])) {
          $token = rtrim($token, ':]') . ':';
          $matches[$token] = levenshtein($token, $string);
        }
      }
    }
  }

  asort($matches);
  $matches = drupal_map_assoc(array_keys($matches));
  drupal_json_output($matches);
}