<?php


/**
 * Implements hook_crumbs_plugins()
 */
function mycrumbs_crumbs_plugins($api) {
  $api->monoPlugin('blog');
  $api->monoPlugin('portfolio');
}


/**
 * Crumbs plugin for blog posts and views.
 *
 * This is called "mono", because the findParent() methods return only one
 * candidate, not an array of them.
 */
class mycrumbs_CrumbsMonoPlugin_blog implements crumbs_MonoPlugin {

  function describe($api) {
    return t('Special crumbs behavior for blogs on blog.hexatrope.com.');
  }

  /**
   * Paths like taxonomy/term/%
   */
  function findParent__taxonomy_term_x($path, $item) {
    $term = $item['map'][2];
    switch ($term->vocabulary_machine_name) {
      // TODO: Put your own vocabulary machine name.
      case 'blog_categories':
        return 'blog';
    }
  }

  /**
   * Paths like node/%
   * (these are node paths)
   */
  function findParent__node_x($path, $item) {
    $node = $item['map'][1];
    switch ($node->type) {
      case 'blog_post':
        $date_string = date('Y/m/d', $node->created);
        return "blog/$date_string";
    }
  }

  /**
   * Paths like blog/%
   * (that's a view, which can have additional arguments)
   *
   * Example:
   *   blog/2012/04/04 does resolve to blog/%,
   *   because blog/%/%/% is not a path in menu_router.
   *   Still, the additional "/04/04" do show up in $path and in
   *   $item['fragments'].
   * Breadcrumb intended:
   *   blog > blog/2012 > blog/2012/04 > blog/2012/04/04
   */
  function findParent__blog_x($path, $item) {
    // Chop off the last fragment of the path.
    $fragments = $item['fragments'];
    array_pop($fragments);
    return implode('/', $fragments);
  }

  /**
   * Override the label for breadcrumb items with path blog/%
   * (like blog/2012, blog/2012/04, blog/2012/04/04)
   *
   * Those breadcrumb pieces should have shortened labels.
   * Blog > 2012 > 04 > 04.
   */
  function findTitle__blog_x($path, $item) {
    // The last fragment holds the number we are interested in.
    $last_fragment = end($item['fragments']);
    return $last_fragment;
  }
}


/**
 * Crumbs plugin for blog posts and views.
 *
 * This is called "mono", because the findParent() methods return only one
 * candidate, not an array of them.
 */
class mycrumbs_CrumbsMonoPlugin_portfolio implements crumbs_MonoPlugin {

  function describe($api) {
    return t('Special crumbs behavior for portfolio stuff on blog.hexatrope.com.');
  }

  /**
   * Paths like node/%
   * (these are node paths)
   *
   * This method is not really necessary, the path plugin can do the job just fine.
   * Either remove, or improve.
   */
  function findParent__node_x($path, $item) {
    $node = $item['map'][1];
    switch ($node->type) {
      case 'portfolio_item':
        // TODO: Use the correct field name.
        if (isset($node->field_portfolio_category)) {
          // TODO: Determine the category from the term reference field.
          $category_slug = 'vineyard-missions';
          return "portfolio/$category_slug";
        }
        else {
          return 'portfolio';
        }
    }
  }

  /**
   * Paths like portfolio/category/%
   */
  function findParent__portfolio_category_x($path, $item) {
    // TODO: What about a new page "portfolio/categories" ?
    return 'portfolio';
  }
}