<?php

/**
 * @file
 * Install, update and uninstall functions for the apachesolr_attachments module.
 */

/**
 * Implements hook_enable().
 */
function apachesolr_attachments_enable() {
}

/**
 * Implements hook_uninstall().
 */
function apachesolr_attachments_uninstall() {
  variable_del('apachesolr_attachments_tika_path');
  variable_del('apachesolr_attachments_tika_jar');
  variable_del('apachesolr_attachments_excluded_extensions');
  variable_del('apachesolr_attachments_extract_using');
  variable_del('apachesolr_attachments_excluded_mime');
}

/**
 * Implements hook_requirements().
 */
function apachesolr_attachments_requirements($phase) {
  $requirements = array();
  // Ensure translations don't break at install time.
  $t = get_t();
  if ($phase == 'runtime') {
    if (variable_get('apachesolr_attachments_extract_using', 'tika') == 'tika') {
      $tmp = tempnam(file_directory_temp(), 'apachesolr_attachments');
      exec(variable_get('apachesolr_attachments_java', 'java') . ' -version > ' . $tmp . ' 2>&1');
      if (!preg_match('/Runtime Environment/', file_get_contents($tmp))) {
        $requirements['apachesolr_attachments_java']  = array(
          'title' => $t('Apache Solr Attachments'),
          'value' => $t('Java executable not found'),
          'description' => $t("Could not execute a java command. You may need to set the path of the correct java executable as the variable 'apachesolr_attachments_java' in settings.php."),
          'severity' => REQUIREMENT_ERROR,
        );
      }
    }
  }
  return $requirements;
}

/**
 * Implements hook_schema().
 */
function apachesolr_attachments_schema() {
  $types = array(
    'file' => 'apachesolr_index_entities_file',
  );
  foreach ($types as $type => $table) {
    $schema[$table] = array(
      'description' => t('Stores a record of when an entity changed to determine if it needs indexing by Solr.'),
      'fields' => array(
        'entity_type' => array(
          'description' => t('The type of entity.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => TRUE,
        ),
        'entity_id' => array(
          'description' => t('The primary identifier for an entity.'),
          'type' => 'int',
          'unsigned' => TRUE,
          'not null' => TRUE,
        ),
        'bundle' => array(
          'description' => t('The bundle to which this entity belongs.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => TRUE,
        ),
        'status' => array(
          'description' => t('Boolean indicating whether the entity is visible to non-administrators (eg, published for nodes).'),
          'type' => 'int',
          'not null' => TRUE,
          'default' => 1,
        ),
        'changed' => array(
          'description' => t('The Unix timestamp when an entity was changed.'),
          'type' => 'int',
          'not null' => TRUE,
          'default' => 0,
        ),
        'parent_entity_type' => array(
          'description' => t('The type of entity.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'parent_entity_id' => array(
          'description' => t('The type of the parent entity.'),
          'type' => 'int',
          'unsigned' => TRUE,
          'not null' => FALSE,
        ),
        'hash' => array(
          'description' => "A hash of the file's body, to check for changes.",
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
          'default' => '',
        ),
        'body' => array(
          'description' => 'The cached body (extracted text) of the file, unless it is a text file.',
          'type' => 'text',
          'not null' => FALSE,
          'size' => 'big',
        ),
      ),
      'indexes' => array(
        'changed' => array('changed', 'status'),
      ),
      'primary key' => array('entity_id', 'parent_entity_id', 'parent_entity_type'),
    );
  }
  return $schema;
}

/**
 * Rename variables.
 */
function apachesolr_attachments_update_7000() {
  $tmp = variable_get('apachesolr_attachment_extract_using', 'tika');
  variable_set('apachesolr_attachments_extract_using', $tmp);
  variable_del('apachesolr_attachment_extract_using');

  $tmp = variable_get('apachesolr_attachment_excluded_extensions', implode(' ', apachesolr_attachments_default_excluded()));
  variable_set('apachesolr_attachments_excluded_extensions', $tmp);
  variable_del('apachesolr_attachment_excluded_extensions');

  $tmp = variable_get('apachesolr_attachment_excluded_mime', FALSE);
  variable_set('apachesolr_attachments_excluded_mime', $tmp);
  variable_del('apachesolr_attachment_excluded_mime');

  $tmp = variable_get('apachesolr_attachements_cron_time_limit', 15);
  variable_set('apachesolr_attachments_cron_time_limit', $tmp);
  variable_del('apachesolr_attachements_cron_time_limit');

  $tmp = variable_get('apachesolr_attachements_cron_try', 20);
  variable_set('apachesolr_attachments_cron_try', $tmp);
  variable_del('apachesolr_attachements_cron_try');
}

/**
 * Enable apachesolr_attachments.
 */
function apachesolr_attachments_update_7001() {
  $active = variable_get('search_active_modules', array('node', 'user'));
  $active[] = 'apachesolr_attachments';
  variable_set('search_active_modules', array_unique($active));
}

/**
 * Change DB index to allow files attached to multiple nodes.
 */
function apachesolr_attachments_update_7002() {
  // Removed
}


/**
 * Change DB tables to support multiple entity indexing.
 */
function apachesolr_attachments_update_7003() {
  module_load_include('module','apachesolr_attachments');

  // Drop our legacy table
  if (db_table_exists('apachesolr_attachments_files')) {
    db_drop_table('apachesolr_attachments_files');
  }

  $types = array(
    'file' => 'apachesolr_index_entities_file',
  );
  foreach ($types as $type => $table) {
    $schema[$table] = array(
      'description' => t('Stores a record of when an entity changed to determine if it needs indexing by Solr.'),
      'fields' => array(
        'entity_type' => array(
          'description' => t('The type of entity.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => TRUE,
        ),
        'entity_id' => array(
          'description' => t('The primary identifier for an entity.'),
          'type' => 'int',
          'unsigned' => TRUE,
          'not null' => TRUE,
        ),
        'bundle' => array(
          'description' => t('The bundle to which this entity belongs.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => TRUE,
        ),
        'status' => array(
          'description' => t('Boolean indicating whether the entity is visible to non-administrators (eg, published for nodes).'),
          'type' => 'int',
          'not null' => TRUE,
          'default' => 1,
        ),
        'changed' => array(
          'description' => t('The Unix timestamp when an entity was changed.'),
          'type' => 'int',
          'not null' => TRUE,
          'default' => 0,
        ),
        'parent_entity_type' => array(
          'description' => t('The type of entity.'),
          'type' => 'varchar',
          'length' => 128,
          'not null' => FALSE,
        ),
        'parent_entity_id' => array(
          'description' => t('The type of the parent entity.'),
          'type' => 'int',
          'unsigned' => TRUE,
          'not null' => FALSE,
        ),
        'hash' => array(
          'description' => "A hash of the file's body, to check for changes.",
          'type' => 'varchar',
          'length' => 255,
          'not null' => TRUE,
          'default' => '',
        ),
        'body' => array(
          'description' => 'The cached body (extracted text) of the file, unless it is a text file.',
          'type' => 'text',
          'not null' => FALSE,
          'size' => 'big',
        ),
      ),
      'indexes' => array(
        'changed' => array('changed', 'status'),
      ),
      'primary key' => array('entity_id', 'parent_entity_id'),
    );
    if (!db_table_exists($table)) {
      db_create_table('apachesolr_index_entities_file', $schema[$table]);
    }
  }
  // Sleep 1 second, so the table is initialized before we continue.
  // See #1672768
  sleep(1);
  // Remove old variables
  variable_del('apachesolr_attachments_exclude_types');
  variable_del('apachesolr_attachments_cron_limit');
  variable_del('apachesolr_attachments_cron_time_limit');
  variable_del('apachesolr_attachments_cron_try');

  // Repopulate our file table
  apachesolr_attachments_solr_reindex();
}