<?php

/**
 * @file
 * Install, update and uninstall functions for Edge Suite module.
 */

/**
 * Implements hook_schema().
 */
function edge_suite_schema() {
  $schema['edge_suite_definition'] = array(
    'description' => 'Composition definitions.',
    'fields' => array(
      'definition_id' => array(
        'description' => 'Internal ID of a composition.',
        'type' => 'serial',
        'not null' => TRUE,
      ),
      'fid' => array(
        'description' => 'The {file_managed}.fid of the source OAM.',
        'type' => 'int',
        'not null' => TRUE,
        'unsigned' => TRUE,
      ),
      'project_name' => array(
        'description' => 'Name of the project.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'composition_id' => array(
        'description' => 'CompositionId / Class Name of Stage DIV.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'type' => array(
        'description' => 'Defines the instance type: field and global.',
        'type' => 'varchar',
        'length' => '64',
        'not null' => TRUE,
      ),
      'info' => array(
        'type' => 'text',
        'size' => 'big',
        'description' => 'A serialized array of meta information.',
        'serialize' => TRUE,
        'serialized default' => 'a:0:{}',
      ),
      'uid' => array(
        'description' => 'Uid of the author.',
        'type' => 'int',
        'not null' => TRUE,
      ),
      'created' => array(
        'description' => 'The Unix timestamp when the definition was created.',
        'type' => 'int',
        'not null' => TRUE,
      ),
      'changed' => array(
        'description' => 'The Unix timestamp when the definition was updated.',
        'type' => 'int',
        'not null' => TRUE,
      ),
    ),
    'primary key' => array('definition_id'),
    'foreign keys' => array(
      'fid' => array(
        'table' => 'file_managed',
        'columns' => array('fid' => 'fid'),
      ),
    ),
    'indexes' => array(
      'definition_id' => array('definition_id'),
      'fid' => array('fid'),
    ),
  );

  $schema['edge_suite_instance'] = array(
    'description' => 'Instances of a compositions.',
    'fields' => array(
      'instance_id' => array(
        'description' => 'Internal id of the instance.',
        'type' => 'serial',
        'not null' => TRUE,
      ),
      'definition_id' => array(
        'description' => 'Definition reference.',
        'type' => 'int',
        'not null' => TRUE,
      ),
      'label' => array(
        'description' => 'Label of the instance.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'description' => array(
        'description' => 'Description of the instance.',
        'type' => 'varchar',
        'length' => '255',
        'not null' => TRUE,
      ),
      'context_entity_id' => array(
        'description' => 'Entity Id of the context, e.g. the node to use for tokens with data injection.',
        'type' => 'int',
        'not null' => FALSE,
      ),
      // Todo unclear: add foreign key?
      'field_id' => array(
        'description' => 'Id of the field the instance is linked to.',
        'type' => 'int',
        'not null' => FALSE,
      ),
      'config' => array(
        'type' => 'text',
        'size' => 'big',
        'description' => 'A serialized array of the configuration.',
        'serialize' => TRUE,
        'serialized default' => 'a:0:{}',
      ),
    ),
    'foreign keys' => array(
      'definition' => array(
        'table' => 'edge_suite_definition',
        'columns' => array('definition_id' => 'definition_id'),
      ),
    ),
    'primary key' => array('instance_id'),
  );
  return $schema;
}


/**
 * Implements hook_field_schema().
 */
function edge_suite_field_schema($field) {
  return array(
    'columns' => array(
      'instance_id' => array(
        'description' => 'Instance reference.',
        'type' => 'int',
        'not null' => TRUE,
      ),
    ),
    'foreign keys' => array(
      'instance' => array(
        'table' => 'edge_suite_instance',
        'columns' => array('instance_id' => 'instance_id'),
      ),
    ),
    'indexes' => array(
      'instance_id' => array('instance_id'),
    ),
  );
}

/**
 * Implements hook_uninstall().
 */
function edge_suite_uninstall() {
  require_once 'includes/edge_suite_file.inc';

  // Delete all Edge Suite variables.
  $query = db_select('variable', 'v')
    ->condition('v.name', 'edge\_suite\_%', 'LIKE');
  $query->addField('v', 'name');

  $vars = $query->execute();
  foreach ($vars as $var) {
    variable_del($var->name);
  }

  // Delete all left over definitions (these should only be global).
  $query = db_select('edge_suite_definition', 'd');
  $query->fields('d');
  $definitions = $query->execute();

  $edge_suite_main_dir = edge_suite_get_path('main');
  $edge_suite_project_dir = edge_suite_get_path('project');

  foreach ($definitions as $definition) {
    $file = file_load($definition->fid);

    if ($file) {
      // Delete OAM.
      file_usage_delete($file, 'edge_suite', 'edge_suite_definition', $definition->definition_id);
      file_delete($file);

      // Try to delete OAM directory, only works if it's empty.
      edge_suite_dir_delete_empty(drupal_dirname($file->uri));

      // Delete project directory.
      $project_name_unique = strtolower($definition->project_name) . '_' . $definition->definition_id;
      if (is_dir($edge_suite_project_dir . '/' . $project_name_unique)) {
        file_unmanaged_delete_recursive($edge_suite_project_dir . '/' . $project_name_unique);
      }
    }
  }

  // Clean up block registry.
  db_delete('block')
    ->condition('delta', 'edge\_suite\_composition\_block\_%', 'LIKE')
    ->execute();

  // Delete library directory.
  if (is_dir($edge_suite_main_dir . '/edge_includes')) {
    file_unmanaged_delete_recursive($edge_suite_main_dir . '/edge_includes');
  }

  // Delete empty project directory.
  if (!edge_suite_dir_delete_empty($edge_suite_project_dir)) {
    drupal_set_message(t('Edge Suite project directory was not deleted, not empty: %dir', array('%dir' => $edge_suite_project_dir)));
  }

  // Delete empty main edge suite directory.
  if (!edge_suite_dir_delete_empty($edge_suite_main_dir)) {
    drupal_set_message(t('Main Edge Suite directory was not deleted, not empty: %dir', array('%dir' => $edge_suite_project_dir)));
  }
}


/**
 * Update default allowed asset extensions.
 */
function edge_suite_update_7201() {
  $extensions = variable_get('edge_suite_allowed_asset_formats', '');

  if (str_replace(' ', '', $extensions) == 'js,png,jpg,gif,svg') {
    $extensions = 'js, png, jpg, gif, svg, css, html, woff, eot, ttf, mp3, ogg, oga, wav, m4a, aac';
    variable_set('edge_suite_allowed_asset_formats', $extensions);
  }

}