<?php

/**
 * @file
 * Contains install, update, and uninstall functions for Skinr.
 */

/**
 * Implements hook_schema().
 */
function skinr_schema() {
  $schema['skinr_skins'] = array(
    'description' => 'Stores skinr data.',
    'fields' => array(
      'sid' => array(
        'description' => 'The primary identifier for a skin configuration.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'theme' => array(
        'description' => 'The theme this configuration applies to.',
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
      ),
      'module' => array(
        'description' => 'The module this configuration applies to.',
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
      ),
      'element' => array(
        'description' => 'The element this configutation applies to.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'skin' => array(
        'description' => 'The skin that has been applied.',
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => '',
      ),
      'options' => array(
        'description' => 'A serialized array containing the skin options that have been applied.',
        'type' => 'text',
        'size' => 'big',
        'not null' => TRUE,
        'serialize' => TRUE,
      ),
      'status' => array(
        'description' => 'Boolean indicating whether or not this item is enabled.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'size' => 'tiny',
      ),
    ),
    'primary key' => array('sid'),
    'unique keys' => array(
      'theme_module_element_skin' => array('theme', 'module', 'element', 'skin'),
    ),
    'indexes' => array(
      'theme' => array('theme'),
      'module' => array('theme', 'module'),
      'element' => array('theme', 'module', 'element'),
      'skin' => array('skin'),
    ),
  );

  $schema['skinr_rules'] = array(
    'description' => 'Stores skinr rule data.',
    'fields' => array(
      'rid' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique skinr rule ID.',
      ),
      'title' => array(
        'description' => 'The administrative title for this rule.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'rule_type' => array(
        'description' => 'The content type of this rule.',
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
        'default' => '',
      ),
      'node_types' => array(
        'type' => 'text',
        'size' => 'normal',
        'not null' => FALSE,
        'serialize' => TRUE,
        'description' => 'A serialized array of node types for this record.',
      ),
      'roles' => array(
        'type' => 'text',
        'size' => 'normal',
        'not null' => FALSE,
        'serialize' => TRUE,
        'description' => 'A serialized array of roles for this record.',
      ),
      'visibility' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'size' => 'tiny',
        'description' => 'Flag to indicate how to show rules on pages. (0 = Show on all pages except listed pages, 1 = Show only on listed pages, 2 = Use custom PHP code to determine visibility)',
      ),
      'pages' => array(
        'type' => 'text',
        'not null' => TRUE,
        'description' => 'Contains either a list of paths on which to include/exclude the rule or PHP code, depending on "visibility" setting.',
      ),
    ),
    'primary key' => array('rid'),
  );

  return $schema;
}

/**
 * Implements hook_uninstall().
 */
function skinr_uninstall() {
  // Remove all skinr variables.
  db_delete('variable')
    ->condition('name', 'skinr_%', 'LIKE')
    ->execute();
}

/**
 * Implements hook_update_last_removed().
 *
 * Make sure any previous updates aren't skipped.
 */
function skinr_update_last_removed() {
  // @todo We probably shouldn't expect people to have ever installed
  //   Skinr version 6.x-2.x, where updates 6000 through 6003 are from.
  return 6004;
}

/**
 * Install new skinr tables and convert old variables to the new db system.
 *
 * @todo Shoud we remove this?  It was ported from skinr_update_6000(), but
 *   shouldn't have been.
 *
 * Contents removed because the table added here is no longer required.
 */
function skinr_update_7001() {
}

/**
 * Install a new field in {skinr_rules} table.
 *
 * @todo Should we remove this? It was ported from skinr_update_6001(), but
 *   shouldn't have been.
 */
function skinr_update_7002() {
  // @todo skinr_update_6001() contains additional field manipulations.

  if (!db_field_exists('skinr_rules', 'rule_type')) {
    db_add_field('skinr_rules', 'rule_type', array(
      'description' => 'The content type of this rule.',
      'type' => 'varchar',
      'length' => 128,
      'not null' => TRUE,
      'default' => '',
    ));
    db_update('skinr_rules')
      ->fields(array('rule_type' => 'page'))
      ->execute();
    db_update('skinr')
      ->fields(array('module' => 'rules'))
      ->condition('module', 'page')
      ->execute();
  }
}

/**
 * Install the new {skinr_skinsets} and {skinr_skins} tables.
 *
 * @todo Should we remove this? It was ported from skinr_update_6002() and
 *   skinr_update_6003(), but should not have been.
 *
 * Contents removed because the tables added here are no longer required.
 */
function skinr_update_7003() {
}