<?php

/**
 * @file
 * Installation file for Link Checker module.
 */

use Drupal\user\Entity\User;

/**
 * Implements hook_install().
 */
function linkchecker_install() {
  $linkchecker_default_impersonate_account = User::load(1);
  \Drupal::configFactory()->getEditable('linkchecker.settings')->set('error.impersonate_account', $linkchecker_default_impersonate_account->getAccountName())->save();
}

/**
 * Implements hook_schema().
 */
function linkchecker_schema() {

  $schema['linkchecker_block_custom'] = array(
    'description' => 'Stores all link references for custom blocks.',
    'fields' => array(
      'bid'  => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {block_custom}.bid.',
      ),
      'lid' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {linkchecker_link}.lid.',
      ),
    ),
    'primary key' => array('bid', 'lid'),
    'foreign keys' => array(
      'bid' => array(
        'table' => 'block_custom',
        'columns' => array('bid' => 'bid'),
      ),
      'lid' => array(
        'table' => 'linkchecker_link',
        'columns' => array('lid' => 'lid'),
      ),
    ),
    'indexes' => array('lid' => array('lid')),
  );

  $schema['linkchecker_comment'] = array(
    'description' => 'Stores all link references for comments.',
    'fields' => array(
      'cid'  => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {comment}.cid.',
      ),
      'lid' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {linkchecker_link}.lid.',
      ),
    ),
    'primary key' => array('cid', 'lid'),
    'foreign keys' => array(
      'cid' => array(
        'table' => 'comment',
        'columns' => array('cid' => 'cid'),
      ),
      'lid' => array(
        'table' => 'linkchecker_link',
        'columns' => array('lid' => 'lid'),
      ),
    ),
    'indexes' => array('lid' => array('lid')),
  );

  $schema['linkchecker_node'] = array(
    'description' => 'Stores all link references for nodes.',
    'fields' => array(
      'nid'  => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {node}.nid.',
      ),
      'lid' => array(
        'type' => 'int',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique {linkchecker_link}.lid.',
      ),
    ),
    'primary key' => array('nid', 'lid'),
    'foreign keys' => array(
      'nid' => array(
        'table' => 'node',
        'columns' => array('nid' => 'nid'),
      ),
      'lid' => array(
        'table' => 'linkchecker_link',
        'columns' => array('lid' => 'lid'),
      ),
    ),
    'indexes' => array('lid' => array('lid')),
  );

  $schema['linkchecker_link'] = array(
    'description' => 'Stores all links.',
    'fields' => array(
      'lid'  => array(
        'type' => 'serial',
        'not null' => TRUE,
        'description' => 'Primary Key: Unique link ID.',
      ),
      'urlhash' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'description' => 'The indexable hash of the {linkchecker_link}.url.',
      ),
      'url' => array(
        'type' => 'text',
        'not null' => TRUE,
        'description' => 'The full qualified link.',
      ),
      'method' => array(
        'type' => 'varchar',
        'length' => 4,
        'default' => 'HEAD',
        'not null' => TRUE,
        'description' => 'The method for checking links (HEAD, GET, POST).',
      ),
      'code' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => -1,
        'description' => 'HTTP status code from link checking.',
      ),
      'error' => array(
        'type' => 'text',
        'not null' => FALSE,
        'description' => 'The error message received from the remote server while doing link checking.',
      ),
      'fail_count' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Fail count of unsuccessful link checks. No flapping detection. (Successful = 0, Unsuccessful = fail_count+1).',
      ),
      'last_checked' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 0,
        'description' => 'Timestamp of the last link check.',
      ),
      'status' => array(
        'type' => 'int',
        'not null' => TRUE,
        'default' => 1,
        'description' => 'Boolean indicating if a link should be checked or not.',
      ),
    ),
    'primary key' => array('lid'),
    'unique keys' => array('urlhash' => array('urlhash')),
    'indexes' => array(
      'method' => array('method'),
      'code' => array('code'),
      'fail_count' => array('fail_count'),
      'last_checked' => array('last_checked'),
      'status' => array('status'),
    ),
  );

  return $schema;
}

/**
 * Implements hook_modules_uninstalled().
 *
 * If the core modules are disabled the integration need to be disabled.
 */
function linkchecker_modules_uninstalled($modules) {
  // Disable link checks for custom blocks.
  if (in_array('block', $modules)) {
    \Drupal::config('linkchecker.settings')->set('scan_blocks', 0);
    drupal_set_message(t('Link checks for blocks have been disabled.'));
  }

  // Disable link checks for comments.
  if (in_array('comment', $modules)) {
    foreach (node_type_get_names() as $type => $name) {
      // @fixme: This is incorrect. The variable is inside node.type.*.third_party.linkchecker
      //\Drupal::config('node.type.' . $type .  '.third_party.linkchecker')->clear('scan_comment');
      //\Drupal::service('config.manager');
      //$type->unsetThirdPartySetting('linkchecker', 'scan_comment', $form_state->getValue('scan_comment'));
    }
    drupal_set_message(t('Link checks for comments have been disabled.'));
  }
}