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<?php

/**

 * @file

 * Installation actions for FlexSlider

 */

/**

 * Implements hook_schema().

 */

function flexslider_schema() {

  $schema = array();

  $schema['flexslider_optionset'] = array(

    'description' => 'Store option sets for flexslider instances.',

    'export' => array(

      'key' => 'name',

      'identifier' => 'preset',

      'default hook' => 'flexslider_default_presets',

      'api' => array(

        'owner' => 'flexslider',

        'api' => 'flexslider_default_preset',

        'minimum_version' => 1,

        'current_version' => 1,

      ),

    ),

    'fields' => array(

      'name' => array(

        'description' => 'The machine-readable option set name.',

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

      ),

      'title' => array(

        'description' => 'The human-readable title for this option set.',

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

      ),

      'theme' => array(

        'description' => 'The flexslider theme.',

        'type' => 'varchar',

        'length' => 255,

        'not null' => TRUE,

        'default' => 'classic',

      ),

      'options' => array(

        'description' => 'The options array.',

        'type' => 'blob',

        'size' => 'big',

        'serialize' => TRUE,

      ),

    ),

    'primary key' => array('name'),

  );

  return $schema;

}

/**

 * Implements hook_install().

 *

 * Adds a 'default' option set for fresh installs.

 */

function flexslider_install() {

  // Do nothing for now

}

/**

 * Implements hook_uninstall().

 */

function flexslider_uninstall() {

  variable_del('flexslider_debug');

  variable_del('flexslider_version');

}

/**

 * Implements hook_requirements().

 */

function flexslider_requirements($phase) {

  $requirements = array();

  // Ensure translations don't break at install time

  $t = get_t();

  // Check to see if the flexslider library is available

  if ($phase == 'runtime') {

    $requirements['flexslider'] = array(

      'title' => $t('FlexSlider'),

      // @todo have the version automatically detected

      'description' => $t('Version 2.0 installed'),

      'severity' => REQUIREMENT_OK,

    );

    _flexslider_requirements_library_installed($requirements);

  }

  return $requirements;

}

/**

 * Implements hook_update_N().

 *

 * Remove/Update table fields to better suit FlexSlider

 */

function flexslider_update_7001(&$sandbox) {

  $field_new = array(

    'description' => 'The image style for normal images.',

    'type' => 'varchar',

    'length' => 255,

    'not null' => TRUE,

    'default' => 'flexslider_full',

  );

  // Change the default image style

  db_change_field('flexslider_optionset', 'imagestyle_normal', $field_new, array());

  // Drop the unused table column

  db_drop_field('flexslider_optionset', 'imagestyle_thumb');

}

/**

 * Implements hook_update_N().

 *

 * Enables the Image module since it is now explicitly listed as a

 * dependency.

 */

function flexslider_update_7002(&$sandbox) {

  module_enable(array('image'));

}

/**

 * Implements hook_update_N().

 *

 * Migrate settings from FlexSlider v1 to v2

 */

function flexslider_update_7200(&$sandbox) {

  $t = get_t();

  $optionsets = flexslider_optionset_load_all();

  foreach ($optionsets as $optionset) {

    // Map old options to new keys/values

    $optionset->options['animationSpeed'] = $optionset->options['animationDuration'];

    $optionset->options['direction'] = $optionset->options['slidedirection'];

    $optionset->options['keyboard'] = $optionset->options['keyboardnav'];

    $optionset->options['startAt'] = $optionset->options['slidetostart'];

    $optionset->options['start'] = $optionset->options['startCallback'];

    $optionset->options['before'] = $optionset->options['beforeCallback'];

    $optionset->options['after'] = $optionset->options['afterCallback'];

    $optionset->options['end'] = $optionset->options['endCallback'];

    // Delete any options which no longer exist

    unset($optionset->options['animationDuration']);

    unset($optionset->options['slidedirection']);

    unset($optionset->options['keyboardnav']);

    unset($optionset->options['startCallback']);

    unset($optionset->options['beforeCallback']);

    unset($optionset->options['afterCallback']);

    unset($optionset->options['endCallback']);

    unset($optionset->options['controlsContainer']); // This value changed in the new version. We have to reset it to the default value

    // Merge in defaults for new options

    $optionset->options += _flexslider_optionset_defaults();

    // Save the updated optionset

    flexslider_optionset_save($optionset);

  }

  drupal_set_message($t('Optionsets migrated. However it is recommended to go validate all your settings manually. Especially if you have callback functions defined. They may reference functions which no longer exist.'), 'warning');

}

function flexslider_update_7201(&$sandbox) {

  $field_new = array(

    'description' => 'The image style for thumbnail images.',

    'type' => 'varchar',

    'length' => 255,

    'not null' => TRUE,

    'default' => 'flexslider_thumbnail',

  );

  // Change the default image style

  db_add_field('flexslider_optionset', 'imagestyle_thumbnail', $field_new, array());

}

/**

 * Implements hook_update_N().

 *

 * Remove the image style settings from the optionset

 */

function flexslider_update_7202(&$sandbox) {

  db_drop_field('flexslider_optionset', 'imagestyle_normal');

  db_drop_field('flexslider_optionset', 'imagestyle_thumbnail');

}

/**

 * Check if the library is available

 *

 * @param array $requirements

 *  Requirements definition

 */

function _flexslider_requirements_library_installed(&$requirements) {

  $t = get_t();

  $path = libraries_get_path('flexslider');

  $installed = file_exists($path . '/jquery.flexslider-min.js') && file_exists($path . '/jquery.flexslider.js');

  // Check the results of the test

  if (!$installed) {

    $requirements['flexslider']['description'] = $t('FlexSlider library not found. Please consult the README.txt for installation instructions.');

    $requirements['flexslider']['severity'] = REQUIREMENT_ERROR;

    $requirements['flexslider']['value'] = $t('FlexSlider library not found.');

    return;

  }

  $js = file_exists($path . '/jquery.flexslider-min.js') ? fopen($path . '/jquery.flexslider-min.js', 'r') : fopen($path . '/jquery.flexslider.js', 'r');

  $header = fread($js, 64);

  $matches = array();

  if (preg_match("/ v([0-9]+)\.([0-9]+)/", $header, $matches)) {

    if (!($matches[1] == 2 and $matches[2] >= 0)) {

      $requirements['flexslider']['description'] = $t('FlexSlider must be version 2.0 or higher, but lower than version 3.0.  Please consult the README.txt for installation instructions.');

      $requirements['flexslider']['severity'] = REQUIREMENT_WARNING;

      $requirements['flexslider']['value'] = $t('Incorrect version detected.');

      return;

    }

    else {

      $version = $matches[1] . "." . $matches[2];

      variable_set('flexslider_version', $version);

      $requirements['flexslider']['description'] = $t('Version %version installed', array( '%version' => $version));

      $requirements['flexslider']['value'] = $t('FlexSlider library installed.');

      return;

    }

  }

  else {

    $requirements['flexslider']['description'] = $t('FlexSlider version could not be determined.  Please consult the README.txt for installation instructions.');

    $requirements['flexslider']['severity'] = REQUIREMENT_WARNING;

    $requirements['flexslider']['value'] = $t('Unable to detect version.');

  }

}

// @todo add hook_update_N function to migrate old option set data to new values