<?php

/**
 * @file
 * Install and update functions for the Statistics module.
 */

/**
 * Implements hook_uninstall().
 */
function statistics_uninstall() {
  // Remove states.
  \Drupal::state()->delete('statistics.node_counter_scale');
  \Drupal::state()->delete('statistics.day_timestamp');
}

/**
 * Implements hook_schema().
 */
function statistics_schema() {
  $schema['node_counter'] = array(
    'description' => 'Access statistics for {node}s.',
    'fields' => array(
      'nid' => array(
        'description' => 'The {node}.nid for these statistics.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
      'totalcount' => array(
        'description' => 'The total number of times the {node} has been viewed.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'size' => 'big',
      ),
      'daycount' => array(
        'description' => 'The total number of times the {node} has been viewed today.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
        'size' => 'medium',
      ),
      'timestamp' => array(
        'description' => 'The most recent time the {node} has been viewed.',
        'type' => 'int',
        'unsigned' => TRUE,
        'not null' => TRUE,
        'default' => 0,
      ),
    ),
    'primary key' => array('nid'),
  );

  return $schema;
}

/**
 * Moves statistics settings from variables to config.
 *
 * @ingroup config_upgrade
 */
function statistics_update_8000() {
  update_variables_to_config('statistics.settings', array(
    'statistics_count_content_views' => 'count_content_views',
    'statistics_block_top_day_num' => 'block.popular.top_day_limit',
    'statistics_block_top_all_num' => 'block.popular.top_all_limit',
    'statistics_block_top_last_num' => 'block.popular.top_recent_limit',
  ));
}

/**
 * Make *id fields unsigned.
 */
function statistics_update_8001() {
  db_drop_primary_key('node_counter');
  db_change_field('node_counter', 'nid', 'nid',
    array(
      'description' => 'The {node}.nid for these statistics.',
      'type' => 'int',
      'unsigned' => TRUE,
      'not null' => TRUE,
      'default' => 0,
    ),
    array('primary key' => array('nid'))
  );
}

/**
 * Convert variables to state.
 */
function statistics_update_8002() {
  update_variables_to_state(array(
    'node_cron_views_scale' => 'statistics.node_counter_scale',
    'statistics_day_timestamp' => 'statistics.day_timestamp',
  ));
}