<?php

/******************************************************************
 * A Drupal module for integrating custom icons with the Icons API
 * @src: custom_icons.module
 *****************************************************************/

/**
 * Implements hook_icon_providers()
 * - This function let's the Icon module know abour our custom provider
 */
function icons_icon_providers() {
  $providers['custom_icons'] = array(
    'title' => t('Custom icons'),
    'default bundle' => array(
      'settings' => array(),
    ),
  );
  return $providers;
}

/**
 * Implements hook_icon_bundle_configure()
 * - Creates our Drupal Icon API provider as well as sets the HTML tag type for each icon's render function
 */
function icons_icon_bundle_configure(&$settings, &$form_state, &$complete_form) {
  $bundle = $form_state['bundle'];
  if ($bundle['provider'] === custom_icons) {
    $settings['tag'] = array(
      '#type' => 'select',
      '#title' => t('HTML Markup'),
      '#description' => t('Choose the HTML markup tag', array(
        '%tag' => '<' . $bundle['settings']['tag'] . '>',
      )),
      '#options' => drupal_map_assoc(array('i', 'span', 'div')),
      '#default_value' => $bundle['settings']['tag'],
    );
  }
}

/**
 * Implements hook_preprocess_icon_RENDER_HOOK()
 * - Icon specific settings such as what prefixes each class name
 */
function icons_preprocess_icon_sprite(&$variables) {
  $bundle = &$variables['bundle'];
  if ($bundle['provider'] === 'icons') {
    // Remove the default "icon" class.
    $key = array_search('icon', $variables['attributes']['class']);
    if ($key !== FALSE) {
      unset($variables['attributes']['class'][$key]);
    }
    foreach($variables['attributes']['class'] as $idx => $value) {
      if ($value == $variables['icon']) {
        $variables['attributes']['class'][$idx] = 'icon-' . $value;
      }
    }
  }
}

/**
 * Implements hook_icon_bundles()
 * - This function sets all of our custom icon class names
 * - Keep in mind, a prefix was set above and will be needed to use these
 */
function icons_icon_bundles() {
  $bundles['icons'] = array(
    'title' => 'Custom icons',
    'render' => 'sprite',
    'settings' => array(
      'tag' => 'i',
    ),
    'icons' => array(
      'accredited' => 'accredited',
      'apply-now' => 'apply-now',
      'board-docs' => 'board-docs',
      'business-plus' => 'business-plus',
      'calendars' => 'calendars',
      'careers' => 'careers',
      'district-a-z' => 'district-a-z',
      'enroll' => 'enroll',
      'financial-transparency' => 'financial-transparency',
      'for-staff' => 'for-staff',
      'safe-2-tell' => 'safe-2-tell',
      'superintendent-msg' => 'superintendent-msg',
      'upcoming-events' => 'upcoming-events',
      'weather-alert' => 'weather-alert',
    ),
  );
  return $bundles;
}

/**
 * Generate markup needed to display our icons
 * - Example usage: <?php icons_render($node->field_icon);?>
 */
function icons_render($field_icon) {
  $element[] = array(
    '#theme' => 'icon',
    '#bundle' => $field_icon['bundle'],
    '#icon' => $field_icon['icon'],
  );
  print drupal_render($element);
}