<?php

/**
 * @file
 * This module provides yet another tool to eliminate spam.
 *
 * @ingroup spamicide
 *
 * Author:  Wes Roepken aka lipcpro < wes at lipcpro dot com >
 * Date:    05/01/2011
 */

/**
 * Implements hook_requirements().
 * @todo add creation of spamicide directory here
 */
function spamicide_requirements($phase) {
  $requirements = array();
  // Ensure translations don't break at install time.
  $t = get_t();

  if ($phase == 'runtime' || $phase == 'install') {
    $path = 'public://' . variable_get('spamicide_dir', 'spamicide'); //was file_default_scheme()
    if (!file_prepare_directory($path, FILE_CREATE_DIRECTORY)) {
      if (!is_dir($path)) {
        $requirements['spamicide_directory'] = array(
          'title' => $t('Spamicide Directory'),
          'value' => $t('%p is not a directory or is not readable by the webserver.', array('%p' => $path)),
          'severity' => REQUIREMENT_ERROR,
        );
      }
      elseif (!is_writable($path)) {
        $requirements['spamicide_directory'] = array(
          'title' => $t('Spamicide Directory'),
          'value' => $t('%p is not writeable by the webserver.', array('%p' => $path)),
          'severity' => REQUIREMENT_ERROR,
        );
      }
      else {
        $requirements['spamicide_directory'] = array(
          'title' => $t('Spamicide Directory'),
          'value' => $t('An unknown error occured.'),
          'description' => $t('An unknown error occured trying to verify %p is a directory and is writable.', array('%p' => $path)),
          'severity' => REQUIREMENT_ERROR,
        );
      }
    }

    $requirements['spamicide_attempt_counter'] = array(
      'title' => $t('Spamicide'),
      'value' => $t('Already blocked @counter form submissions', array('@counter' => variable_get('spamicide_attempt_counter', 0))),
      'severity' => REQUIREMENT_INFO,
    );
  }
  return $requirements;
}

/**
 * Implements hook_schema().
 */
function spamicide_schema() {
  $schema['spamicide'] = array(
    'fields' => array(
      'form_id' => array(
        'type' => 'varchar',
        'length' => 128,
        'not null' => TRUE,
      ),
      'form_field' => array(
        'type' => 'varchar',
        'length' => 64,
        'not null' => TRUE,
        'default' => 'feed_me',
      ),
      'enabled' => array(
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 0,
      ),
      'removable' => array(
        'type' => 'int',
        'size' => 'tiny',
        'not null' => TRUE,
        'default' => 1,
      ),
    ),
    'primary key' => array('form_id'),
  );
    return $schema;
}

/**
 * Implements hook_install().
 * Create the tables
 * required for the spamicide module
 */
function spamicide_install() {
  // insert some defaults and lock them
  module_load_include('inc', 'spamicide');
  $form_ids = array('contact_site_form', 'contact_personal_form', 'user_register_form',
   'user_pass', 'user_login', 'user_login_block', 'forum_node_form'
  );
  foreach (node_type_get_names() as $type => $name) {
    $form_ids[] = 'comment_node_' . $type . '_form';
  }
  foreach ($form_ids as $form_id) {
    db_insert('spamicide')
      ->fields(array(
        'form_id' => $form_id,
        'enabled' => 1,
        'removable' => 0,
      ))
      ->execute();
  }
  variable_set('spamicide_administration_mode', TRUE);
  variable_set('spamicide_attempt_counter', 0);
  variable_set('spamicide_dir', 'spamicide');
  variable_set('spamicide_log_attempts', TRUE);
  _spamicide_set_css_file('feed_me', 'create');
  drupal_set_message(st('The installation of the spamicide table and some default entries was successful.'), 'status');
  drupal_set_message(st('You can now <a href="@spamicide_admin">configure the Spamicide module</a> for your site.',
      array('@spamicide_admin' => url('admin/config/spamicide'))), 'status');
}

/**
 * Implements hook_uninstall().
 * Delete the tables
 * required for the spamicide module
 */
function spamicide_uninstall() {
  // Remove directory and generated files.
  file_unmanaged_delete_recursive('public://' . variable_get('spamicide_dir', 'spamicide'));
  db_delete('variable')->condition('name', 'spamicide_%', 'LIKE')->execute();
  cache_clear_all('variables', 'cache');
}

/**
 * 7000 -   Adds spamicide_dir to variables table making it configurable
 */
function spamicide_update_7000() {
  $ret = array();
  if (is_null(variable_get('spamicide_dir'))) {
    variable_set('spamicide_dir', 'spamicide');
  }
  return $ret;
}

/**
 * 7001 -   Adds spamicide_description to variables table making it configurable
 */
function spamicide_update_7001() {
  $ret = array();
  if (is_null(variable_get('spamicide_description'))) {
    variable_set('spamicide_description', 'To prevent automated spam submissions leave this field empty.');
  }
  return $ret;
}