<?php

/**
 * @file
 * Builds placeholder replacement tokens for browser-related data.
 */

/**
 * Implements hook_token_info().
 */
function browserclass_token_info() {

  $browserclass = [];

  $types['browserclass'] = [
    'name'        => t('Browser classes'),
    'description' => t('Token for browser class.'),
  ];

  // Tokens for browser classes token type.
  $browserclass['browser-classes'] = [
    'name'        => t('Browser classes'),
    'description' => t("The current user's browser classes."),
  ];

  $browserclass['browser'] = [
    'name'        => t('Browser'),
    'description' => t('Type of the browser.'),
  ];

  $browserclass['platform'] = [
    'name'        => t('Platform'),
    'description' => t('Type of the platform.'),
  ];

  $browserclass['device'] = [
    'name'        => t('Device'),
    'description' => t('Device info.'),
  ];

  $browserclass['hook-classes'] = [
    'name'        => t('Extra classes'),
    'description' => t('Extra hook classes.'),
  ];

  // User tokens.
  $user['browserclass'] = [
    'name'        => t('Browser classes'),
    'description' => t("The current user's browser classes."),
    'type'        => 'browserclass',
  ];

  // Site information tokens.
  $site['browserclass'] = [
    'name'        => t('Browser classes'),
    'description' => t("The current user's browser classes."),
    'type'        => 'browserclass',
  ];

  return [
    'types'  => $types,
    'tokens' => [
      'browserclass' => $browserclass,
      'user'         => $user,
      'site'         => $site,
    ],
  ];
}

/**
 * Implements hook_tokens().
 */
function browserclass_tokens($type, $tokens, array $data = [], array $options = []) {

  $replacements = [];

  // Browser class tokens.
  if ($type == 'browserclass') {
    foreach ($tokens as $name => $original) {
      switch ($name) {

        case 'browser-classes':
          $browser_classes = implode(' ', browserclass_get_classes());
          $replacements[$original] = check_plain($browser_classes);
          break;

        case 'browser':
          $browser = implode(' ', browserclass_get_classes(BROWSERCLASS_BROWSER));
          $replacements[$original] = check_plain($browser);
          break;

        case 'platform':
          $platform = implode(' ', browserclass_get_classes(BROWSERCLASS_PLATFORM));
          $replacements[$original] = check_plain($platform);
          break;

        case 'device':
          $device = implode(' ', browserclass_get_classes(BROWSERCLASS_MOBILE));
          $replacements[$original] = check_plain($device);
          break;

        case 'hook-classes':
          $hook_classes = implode(' ', browserclass_get_classes(BROWSERCLASS_OTHER_CLASSES));
          $replacements[$original] = check_plain($hook_classes);
          break;
      }
    }
  }

  // User tokens.
  if ($type == 'user') {
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'browserclass':
          $browser_classes = implode(' ', browserclass_get_classes());
          $replacements[$original] = check_plain($browser_classes);
          break;
      }
    }

    // Chained token relationships.
    if ($browserclass_tokens = token_find_with_prefix($tokens, 'browserclass')) {
      $replacements += token_generate('browserclass', $browserclass_tokens, [], $options);
    }
  }

  // Site information tokens.
  if ($type == 'site') {
    foreach ($tokens as $name => $original) {
      switch ($name) {
        case 'browserclass':
          $browser_classes = implode(' ', browserclass_get_classes());
          $replacements[$original] = check_plain($browser_classes);
          break;
      }
    }

    // Chained token relationships.
    if ($browserclass_tokens = token_find_with_prefix($tokens, 'browserclass')) {
      $replacements += token_generate('browserclass', $browserclass_tokens, [], $options);
    }
  }

  return $replacements;
}