<?php

/**
 * @file
 * GMap Macro Builder
 *
 * A dynamic interface to assist in the creation of gmap macro tags.
 */

/**
 * Implements hook_help().
 */
function gmap_macro_builder_help($path, $arg) {
  switch ($path) {
    case 'map/macro':
      return t('You can use this interface to create a map macro suitable for pasting into a node or any other place that accepts a GMap macro.');
  }
}

/**
 * Implements hook_perm().
 */
function gmap_macro_builder_permission() {
  return array(
    'create gmap macro' => array(
      'title' => t('Create gmap macro'),
      'description' => t('Allows user to create a gmap macro for insertion into content.'),
    ),
  );
}

/**
 * Implements hook_menu().
 */
function gmap_macro_builder_menu() {
  $items['map/macro'] = array(
    'type' => MENU_NORMAL_ITEM,
    'title' => 'Build a GMap macro',
    'access arguments' => array('create gmap macro'),
    'page callback' => 'drupal_get_form',
    'page arguments' => array('gmap_macro_builder_form'),
  );
  return $items;
}

/**
 * Macro builder form.
 *
 * @param array &$form_state
 *   The $form_state array.
 *
 * @param array $settings
 *   Additional settings to apply to the macro map.
 *
 * @param array $hide
 *   Fields to hide from the map. (See code for details.)
 *   Suggestions for better ways of doing this welcome!
 */
function gmap_macro_builder_form($form, &$form_state, $settings = array(), $hide = array()) {
  $path = drupal_get_path('module', 'gmap');

  $form['macroform'] = array(
    '#type' => 'fieldset',
    '#title' => t('Gmap macro creation'),
    '#theme' => 'gmap_macro',
  );

  $form['macroform']['mapdiv'] = array(
    '#type' => 'gmap',
    '#map' => 'macro_map',
    '#settings' => array_merge(array(
      'points' => array(),
      'pointsOverlays' => array(),
      'behavior' => array(
        'dynmarkers' => TRUE,
      ),
    ), $settings),
  );

  $defaults = array_merge(gmap_defaults(), $settings);

  $form['macroform']['overlayedit'] = array(
    '#type' => 'gmap_overlay_edit',
    '#map' => 'macro_map',
  );
  $form['macroform']['mapid'] = array(
    '#type' => 'textfield',
    '#title' => t('Map id attribute'),
    '#description' => t('If you need to access this map from a script, you can assign a map ID here.'),
    '#default_value' => '',
  );
  gmap_widget_setup($form['macroform']['mapid'], 'mapid', 'macro_map');

  // @@@ TODO: Roll this next section into an element,
  // it's duplicated from the settings ui.
  $baselayers = array();

  gmap_module_invoke('baselayers', $baselayers);

  $options = array();
  foreach ($baselayers as $name => $layers) {
    $options[$name] = array();
    foreach ($layers as $k => $v) {
      // @@@TODO: Only show the enabled ones?
      $options[$name][$k] = $v['title'];
    }
  }

  $form['macroform']['maptype'] = array(
    '#type' => 'select',
    '#title' => t('Map type'),
    '#default_value' => $defaults['maptype'],
    '#options' => $options,
  );
  gmap_widget_setup($form['macroform']['maptype'], 'maptype', 'macro_map');

  // @@@TODO: We need to allow choosing an alternate set of baselayers...

  $form['macroform']['controltype'] = array(
    '#type' => 'select',
    '#title' => t('Controls'),
    '#options' => drupal_map_assoc(array('None', 'Small', 'Large', 'Android')),
    '#required' => FALSE,
    '#default_value' => $defaults['controltype'],
  );
  gmap_widget_setup($form['macroform']['controltype'], 'controltype', 'macro_map');

  $form['macroform']['address'] = array(
    '#type' => 'gmap_address',
    '#map' => 'macro_map',
    '#title' => t('Address'),
    '#default_value' => '',
  );
  $form['macroform']['latlong'] = array(
    '#type' => 'gmap_latlon',
    '#map' => 'macro_map',
    '#title' => t('The Latitude and Longitude of the centre of the map'),
    '#default_value' => $defaults['latlong'],
    '#size' => 50,
  );
  $form['macroform']['width'] = array(
    '#type' => 'textfield',
    '#title' => t('Map width'),
    '#default_value' => $defaults['width'],
    '#size' => 25,
    '#maxlength' => 25,
    '#description' => t('The map width, as a CSS length or percentage. Examples: <em>50px</em>, <em>5em</em>, <em>2.5in</em>, <em>95%</em>'),
  );
  gmap_widget_setup($form['macroform']['width'], 'width', 'macro_map');

  $form['macroform']['height'] = array(
    '#type' => 'textfield',
    '#title' => t('Map height'),
    '#default_value' => $defaults['height'],
    '#size' => 25,
    '#maxlength' => 25,
    '#description' => t('The map height, as a CSS length or percentage. Examples: <em>50px</em>, <em>5em</em>, <em>2.5in</em>, <em>95%</em>'),
  );
  gmap_widget_setup($form['macroform']['height'], 'height', 'macro_map');

  $form['macroform']['alignment'] = array(
    '#type' => 'select',
    '#title' => t('Alignment'),
    '#options' => drupal_map_assoc(array('None', 'Right', 'Left', 'Center')),
    '#attached' => array(
      'js' => array(
        "$path/js/align.js" => array('weight' => 2),
      ),
    ),
  );
  gmap_widget_setup($form['macroform']['alignment'], 'align', 'macro_map');

  $form['macroform']['zoom'] = array(
    '#type' => 'select',
    '#title' => t('The current magnification of the map'),
    '#default_value' => $defaults['zoom'],
    '#options' => drupal_map_assoc(range(0, 17)),
  );
  gmap_widget_setup($form['macroform']['zoom'], 'zoom', 'macro_map');

  $form['macroform']['macro'] = array(
    '#type' => 'gmap_macrotext',
    '#map' => 'macro_map',
    '#default_value' => '',
    '#title' => t('Macro text'),
  );

  foreach ($hide as $field => $mode) {
    if (isset($form['macroform'][$field])) {
      if ($mode == 1) {
        $form['macroform'][$field]['#type'] = 'hidden';
        $form['macroform'][$field]['#value'] = $form['macroform'][$field]['#default_value'];
      }
      elseif ($mode == 2) {
        $form['macroform'][$field]['#prefix'] = '<div style="display: none;">';
        $form['macroform'][$field]['#suffix'] = '</div>';
      }
    }
  }

  return $form;
}