<?php
/**
 * @file
 * Install, update and uninstall functions for the imageflow module.
 */

/**
 * Implements hook_schema().
 */
function imageflow_schema() {
  return array(
    'imageflow_preset' => array(
      'description' => 'Store presets for imageflow instances.',
      'fields' => array(
        'name' => array(
          'description' => 'The machine-readable preset name.',
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
        ),
        'title' => array(
          'description' => 'The human-readable title for this preset.',
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
        ),
        'imagestyle' => array(
          'description' => 'The imagestyle to use for this preset.',
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
          'default' => 'medium',
        ),
        'lightbox' => array(
          'description' => 'Stores the lightbox opening function option.',
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
          'default' => 'normal',
        ),
        'options' => array(
          'description' => 'The options array.',
          'type' => 'blob',
          'size' => 'big',
          'serialize' => TRUE,
        ),
      ),
      'primary key' => array('name'),
    ),
  );
}

/**
 * Implements hook_install().
 * 
 * Adds a 'default' preset for fresh installs.
 */
function imageflow_install() {
  $preset = array(
    'name' => 'default',
    'title' => 'Default',
    'options' => array(
      'buttons' => TRUE,
    ),
  );
  if (module_exists('imagecache_reflect')) {
    $preset['imagestyle'] = 'imageflow_reflect';
  }
  imageflow_preset_save($preset, TRUE);

  variable_set('imageflow_library_variant', 'source');
}

/**
 * Implements hook_requirements.
 */
function imageflow_requirements($phase) {
  $requirements = array();
  if ($phase == 'install' || $phase == 'runtime') {
    if ($phase == 'install') {
      $imageflow = drupal_get_path('module', 'imageflow');
      require_once $imageflow . '/imageflow.module';
    }
    $library = libraries_detect('imageflow');
    // Library is cached, so we must look at path to see if something got lost.
    $path = $library['library path'];
    $t = get_t();
    if (!$path) {
      $requirements['imageflow'] = array(
        'title' => $t('Imageflow library'),
        'severity' => REQUIREMENT_ERROR,
        'value' => $t('Library required for Imageflow'),
        'description' => $t('You need to install the Imageflow library. The js file should be readable at sites/*/libraries/imageflow/imageflow.js. You can find the library at !url.', array('!url' => l($t('http://finnrudolph.de/ImageFlow/Download'), 'http://finnrudolph.de/ImageFlow/Download', array('attributes' => array('target' => '_blank'))))),
      );
    }
    else {
      $options = $library['version arguments'];
      $version = libraries_get_version($library, $options);
      $requirements['imageflow'] = array(
        'value' => $version,
        'severity' => REQUIREMENT_OK,
      );
    }
    $requirements['imageflow']['title'] = $t('Imageflow library');
  }
  return $requirements;
}

/**
 * Implements hook_uninstall().
 */
function imageflow_uninstall() {
  variable_del('imageflow_library_variant');
}

/**
 * Implements hook_update.
 */
function imageflow_update_7000() {
  $presets = imageflow_presets();
  foreach ($presets as $preset) {
    if (module_exists('imagecache_reflect')) {
      if (isset($preset['options']['reflections'])) {
        if ($preset['options']['reflections'] == TRUE) {
          $preset['imagestyle'] = 'imageflow_reflect';
        }
      }
    }
    $reflections = array('reflections', 'reflectionP', 'reflectionPNG');
    foreach ($reflections as $option_key) {
      if (isset($preset['options'][$option_key])) {
        unset($preset['options'][$option_key]);
      }
    }
    imageflow_preset_save($preset);
  }

  if (!module_exists('imagecache_reflect')) {
    return t('Install the imagecache reflect module for imageflow reflections.');
  }
  else {
    return t('Imageflow presets updated.');
  }
}

/**
 * Implements hook_update.
 */
function imageflow_update_7001() {
  variable_set('imageflow_library_variant', 'source');
  return t('Imageflow library variants are now selectable at admin/config/media/imageflow/library.');
}