<?php

/**
 * @file
 * Stub file for bootstrap_table().
 */

/**
 * Returns HTML for a table.
 *
 * @param array $variables
 *   An associative array containing:
 *   - header: An array containing the table headers. Each element of the array
 *     can be either a localized string or an associative array with the
 *     following keys:
 *     - "data": The localized title of the table column.
 *     - "field": The database field represented in the table column (required
 *       if user is to be able to sort on this column).
 *     - "sort": A default sort order for this column ("asc" or "desc"). Only
 *       one column should be given a default sort order because table sorting
 *       only applies to one column at a time.
 *     - Any HTML attributes, such as "colspan", to apply to the column header
 *       cell.
 *   - rows: An array of table rows. Every row is an array of cells, or an
 *     associative array with the following keys:
 *     - "data": an array of cells
 *     - Any HTML attributes, such as "class", to apply to the table row.
 *     - "no_striping": a boolean indicating that the row should receive no
 *       'even / odd' styling. Defaults to FALSE.
 *     Each cell can be either a string or an associative array with the
 *     following keys:
 *     - "data": The string to display in the table cell.
 *     - "header": Indicates this cell is a header.
 *     - Any HTML attributes, such as "colspan", to apply to the table cell.
 *     See theme_table() for a $rows example.
 *   - footer: An array containing the table footer. Each element of the array
 *     can be either a localized string or an associative array with the
 *     following keys:
 *     - "data": The localized title of the table column.
 *     - "field": The database field represented in the table column (required
 *       if user is to be able to sort on this column).
 *     - "sort": A default sort order for this column ("asc" or "desc"). Only
 *       one column should be given a default sort order because table sorting
 *       only applies to one column at a time.
 *     - Any HTML attributes, such as "colspan", to apply to the column footer
 *       cell.
 *   - attributes: An array of HTML attributes to apply to the table tag.
 *   - caption: A localized string to use for the <caption> tag.
 *   - colgroups: An array of column groups. Each element of the array can be
 *     either:
 *     - An array of columns, each of which is an associative array of HTML
 *       attributes applied to the COL element.
 *     - An array of attributes applied to the COLGROUP element, which must
 *       include a "data" attribute. To add attributes to COL elements, set the
 *       "data" attribute with an array of columns, each of which is an
 *       associative array of HTML attributes.
 *     See theme_table() for a $colgroup example.
 *     These optional tags are used to group and set properties on columns
 *     within a table. For example, one may easily group three columns and
 *     apply same background style to all.
 *   - sticky: Use a "sticky" table header.
 *   - empty: The message to display in an extra row if table does not have any
 *     rows.
 *
 * @return string
 *   The constructed HTML.
 *
 * @see theme_table()
 *
 * @ingroup theme_functions
 */
function bootstrap_table(array $variables) {
  $header = $variables['header'];
  $rows = $variables['rows'];
  $footer = $variables['footer'];
  $attributes = $variables['attributes'];
  $caption = $variables['caption'];
  $colgroups = $variables['colgroups'];
  $sticky = $variables['sticky'];
  $empty = $variables['empty'];
  $responsive = $variables['responsive'];

  // Add sticky headers, if applicable.
  if (is_array($header) && count($header) && $sticky) {
    drupal_add_js('misc/tableheader.js');
    // Add 'sticky-enabled' class to the table to identify it for JS.
    // This is needed to target tables constructed by this function.
    $attributes['class'][] = 'sticky-enabled';
  }

  $output = '';

  if ($responsive) {
    $output .= "<div class=\"table-responsive\">\n";
  }

  $output .= '<table' . drupal_attributes($attributes) . ">\n";

  if (isset($caption)) {
    $output .= '<caption>' . $caption . "</caption>\n";
  }

  // Format the table columns:
  if (!empty($colgroups)) {
    foreach ($colgroups as $number => $colgroup) {
      $attributes = array();

      // Check if we're dealing with a simple or complex column.
      if (isset($colgroup['data'])) {
        foreach ($colgroup as $key => $value) {
          if ($key == 'data') {
            $cols = $value;
          }
          else {
            $attributes[$key] = $value;
          }
        }
      }
      else {
        $cols = $colgroup;
      }

      // Build colgroup.
      if (is_array($cols) && count($cols)) {
        $output .= ' <colgroup' . drupal_attributes($attributes) . '>';
        $i = 0;
        foreach ($cols as $col) {
          $output .= ' <col' . drupal_attributes($col) . ' />';
        }
        $output .= " </colgroup>\n";
      }
      else {
        $output .= ' <colgroup' . drupal_attributes($attributes) . " />\n";
      }
    }
  }

  // Add the 'empty' row message if available.
  if (empty($rows) && !empty($empty)) {
    $header_count = 0;
    foreach ($header as $header_cell) {
      if (is_array($header_cell)) {
        $header_count += isset($header_cell['colspan']) ? $header_cell['colspan'] : 1;
      }
      else {
        $header_count++;
      }
    }
    $rows[] = array(
      array(
        'data' => $empty,
        'colspan' => $header_count,
        'class' => array('empty', 'message'),
      ),
    );
  }

  // Format the table header:
  if (!empty($header)) {
    $ts = tablesort_init($header);
    // HTML requires that the thead tag has tr tags in it followed by tbody
    // tags. Using ternary operator to check and see if we have any rows.
    $output .= (count($rows) ? ' <thead><tr>' : ' <tr>');
    foreach ($header as $cell) {
      $cell = tablesort_header($cell, $header, $ts);
      $output .= _theme_table_cell($cell, TRUE);
    }
    // Using ternary operator to close the tags based on whether or not there
    // are rows.
    $output .= (count($rows) ? " </tr></thead>\n" : "</tr>\n");
  }
  else {
    $ts = array();
  }

  // Format the table rows:
  if (!empty($rows)) {
    $output .= "<tbody>\n";
    foreach ($rows as $row) {
      // Check if we're dealing with a simple or complex row.
      if (isset($row['data'])) {
        $cells = $row['data'];

        // Set the attributes array and exclude 'data' and 'no_striping'.
        $attributes = $row;
        unset($attributes['data']);
        unset($attributes['no_striping']);
      }
      else {
        $cells = $row;
        $attributes = array();
      }
      if (count($cells)) {
        // Build row.
        $output .= ' <tr' . drupal_attributes($attributes) . '>';
        $i = 0;
        foreach ($cells as $cell) {
          $cell = tablesort_cell($cell, $header, $ts, $i++);
          $output .= _theme_table_cell($cell);
        }
        $output .= " </tr>\n";
      }
    }
    $output .= "</tbody>\n";
  }

  // Format the table footer:
  if (!empty($footer)) {
    $output .= "<tfoot>\n";
    foreach ($footer as $row) {
      // Check if we're dealing with a simple or complex row.
      if (isset($row['data'])) {
        $cells = $row['data'];

        // Set the attributes array and exclude 'data'.
        $attributes = $row;
        unset($attributes['data']);
      }
      else {
        $cells = $row;
        $attributes = array();
      }
      if (count($cells)) {
        // Build row.
        $output .= ' <tr' . drupal_attributes($attributes) . '>';
        $i = 0;
        foreach ($cells as $cell) {
          $cell = tablesort_cell($cell, $header, $ts, $i++);
          $output .= _theme_table_cell($cell);
        }
        $output .= " </tr>\n";
      }
    }
    // Using ternary operator to close the tags based on whether or not there
    // are rows.
    $output .= "</tfoot>\n";
  }

  $output .= "</table>\n";

  if ($responsive) {
    $output .= "</div>\n";
  }

  return $output;
}
