<?php

/**
 * Implements hook_schema().
 */
function invite_schema() {
  $schema = array();

  $schema['invite'] = array(
    'description' => 'The base table for invites.',
    'fields' => array(
      'iid' => array(
        'description' => 'The primary identifier for the invite.',
        'type' => 'serial',
        'unsigned' => TRUE,
        'not null' => TRUE,
      ),
      'reg_code' => array(
        'description' => 'Stores the issued registration code.',
        'type' => 'varchar',
        'length' => 10,
        'not null' => TRUE,
        'default' => '',
      ),
      'type' => array(
        'description' => 'The type (bundle) of this invite.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'uid' => array(
        'description' => 'ID of Drupal user creator.',
        'type' => 'int',
        'not null' => TRUE,
      ),
      'invitee' => array(
        'description' => 'Drupal uid of the invitee upon registration.',
        'type' => 'int',
        'not null' => TRUE,
      ),
      'created' => array(
        'description' => 'The Unix timestamp when the invite was created.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'expiry' => array(
        'description' => 'The Unix timestamp when the invite will expire.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'joined' => array(
        'description' => 'Will be filled with the time the invite was accepted upon registration.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'canceled' => array(
        'description' => 'The Unix timestamp when the invite has been withdrawn.',
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
      ),
      'data' => array(
        'description' => 'Stores auxiliary data.',
        'type' => 'text',
        'not null' => TRUE,
        'serialize' => TRUE,
      ),
    ),
    'primary key' => array('iid'),
    'indexes' => array(
      'invitee' => array('invitee'),
    ),
    'foreign keys' => array(
      'user' => array(
        'table' => 'users',
        'columns' => array('uid' => 'uid'),
      ),
    ),
  );

  $schema['invite_type'] = array(
    'description' => 'Stores information about all defined invite types.',
    'fields' => array(
      'itid' => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique invite type ID.',
      ),
      'type' => array(
        'description' => 'The machine-readable name of this type.',
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
      ),
      'label' => array(
        'description' => 'The human-readable name of this type.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'description' => array(
        'description' => 'A brief description of this type.',
        'type' => 'text',
        'not null' => TRUE,
        'size' => 'medium',
        'translatable' => TRUE,
      ),
      'data' => array(
        'description' => 'Stores auxiliary data.',
        'type' => 'text',
        'not null' => TRUE,
        'serialize' => TRUE,
      ),
    ) + entity_exportable_schema_fields(),
    'primary key' => array('itid'),
    'unique keys' => array(
      'type' => array('type'),
    ),
  );

  $schema['invite_sending_controller'] = array(
    'fields' => array(
      'type' => array(
        'description' => 'The machine-readable name of Invite Type.',
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
      ),
      'module' => array(
        'description' => 'Module, which implements this controller.',
        'type' => 'varchar',
        'length' => 255,
        'not null' => TRUE,
        'default' => '',
      ),
      'name' => array(
        'description' => 'The machine-readable name of this sending controller.',
        'type' => 'varchar',
        'length' => 32,
        'not null' => TRUE,
      ),
    ),
    'unique keys' => array(
      'invite_type_controller' => array('type', 'name'),
    ),
    'foreign keys' => array(
      'invite_type' => array(
        'table' => 'invite_type',
        'columns' => array('type' => 'type'),
      ),
    ),
  );

  return $schema;
}

/**
 * Implements hook_install().
 */
function invite_install() {
  // Set default expiry time 30 days
  variable_set('invite_default_expiry_time', 30);
}

/**
 * Implements hook_install().
 */
function invite_uninstall() {
  // Set default expiry time 30 days
  variable_del('invite_default_expiry_time');
  $variables = db_select('variable', 'v')
    ->fields('v')
    ->condition('name', 'invite_type_%', 'LIKE')
    ->execute();
  foreach ($variables as $variable) {
    variable_del($variable->name);
  }
}

/**
 * Implements update from 2.x version to 4.x
 */
function invite_update_7400() {
  $schema = invite_schema();
  db_rename_table('invite', 'invite_2x');
  db_rename_table('invite_notifications', 'invite_notifications_2x');

  // Create tables.
  db_create_table('invite_type', $schema['invite_type']);
  db_create_table('invite', $schema['invite']);

  // We unable move the data because invite_by_email should be installed.
  // So all data transfer will be moved
  variable_set('invite_version_updated', TRUE);
  variable_set('invite_default_expiry_time', 30);

  drupal_set_message(t('Invite was successfully installed. You could migrate !link.', array('!link' => l('old invites', 'admin/config/people/invite/migrate'))));
}