<?php

/**
 * @file
 * farmOS install file.
 */

/**
 * Implements hook_update_dependencies().
 */
function farm_update_dependencies() {

  // farm_livestock_7000() and farm_equipment_update_7000 both depend on
  // farm_update_7000() because they use the new field_bases provided by
  // farm_fields.
  $farm_7000 = array(
    'farm' => 7000,
  );
  $dependencies['farm_equipment'][7000] = $farm_7000;
  $dependencies['farm_livestock'][7000] = $farm_7000;
  return $dependencies;
}

/**
 * Enable the Farm Fields module.
 */
function farm_update_7000(&$sandbox) {

  // Install the farm_fields module and revert the field_base component on it,
  // so that they are available to update hooks in other modules.
  //
  // Between farmOS 7.x-1.0-beta2 and 7.x-1.0-beta3, we upgraded from
  // Features 1.x to 2.x. This replaced the 'field' component with
  // 'field_base' and 'field_instance'. At the same time, a new module was
  // introduced, to serve as a place to put common field_bases: farm_fields.
  if (!module_exists('farm_fields')) {

    // Enable the farm_fields module.
    module_enable(array('farm_fields'));

    // Reset the "default_hook" static cache for field_base Features components.
    module_load_include('inc', 'features', 'features.export');
    features_get_default_hooks('field_base', TRUE);

    // Load the farm_fields field_base Features include file, otherwise
    // feature_get_default() will not see it, and the revert will fail.
    module_load_include('inc', 'farm_fields', 'farm_fields.features.field_base');

    // Revert the field_base component of farm_fields.
    features_revert(array('farm_fields' => array('field_base')));
  }
}

/**
 * Update to Openlayers 3
 */
function farm_update_7001(&$sandbox) {

  // Enable new module dependencies.
  $modules = array(
    'openlayers_geofield',
    'views_geojson',
  );
  _farm_enable_modules($modules);
}

/**
 * Helper function: enable modules.
 */
function _farm_enable_modules($modules = array()) {
  foreach ($modules as $module) {
    if (!module_exists($module)) {
      module_enable(array($module));
    }
  }
}