<?php
// $Id: pageear.admin.inc,v 1.1.2.1 2009-09-03 14:37:19 manfer Exp $

/**
 * @file
 * Admin page callbacks for pageear module.
 */

/**
 * Menu callback for admin/build/pageear.
 */
function pageear_admin_display() {

  $path = drupal_get_path('module', 'pageear');
  drupal_add_css($path .'/pageear-admin.css', 'module', 'all', FALSE);

  $result = db_query("SELECT * FROM {pageears} ORDER BY peid");
  $rows = array();
  while ($row = db_fetch_object($result)) {
    $rows[] = array(
      'data' => array(
        check_plain($row->name),
        check_plain($row->link),
        pageear_get_options('peelPosition', $row->peelPosition),
        !$row->status ? l(t('enable'), 'admin/build/pageear/'. $row->peid .'/enable') : l(t('disable'), 'admin/build/pageear/'. $row->peid .'/disable'),
        l(t('clone'), 'admin/build/pageear/'. $row->peid .'/clone'),
        l(t('configure'), 'admin/build/pageear/'. $row->peid .'/configure'),
        l(t('delete'), 'admin/build/pageear/'. $row->peid .'/delete'),
      ),
      'class' => $row->status ? 'enabled' : 'disabled',
    );
  }

  $header = array(t('Pageear'), t('Link'), t('Position'), array('data' => t('Operations'), 'colspan' => '4'));

  return theme('table', $header, $rows, $attributes = array('class' => 'pageear-admin-list'), NULL);
}

/**
 * Menu callback; displays the pageear configuration form.
 *
 * Using the same form for three different operations ($op):
 * - 'configure': configure an existing pageear (default)
 * - 'add': add a new pageear
 * - 'clone': clone an existing pageear
 */
function pageear_admin_configure($form_state, $pageear, $op = 'configure') {

  if ($op == 'add' || !$pageear->peid) {
    $pageear = pageear_get_default();
  }
  
  if ($op == 'clone') {
    $pageear->peid = 0;
  }

  // Add Farbtastic color picker
  drupal_add_css('misc/farbtastic/farbtastic.css', 'module', 'all', FALSE);
  drupal_add_js('misc/farbtastic/farbtastic.js');

  // Add js that links farbtastic pickers with its input fields
  drupal_add_js(drupal_get_path('module', 'pageear') .'/earsConfigForm_farbtastic_ini.js');

  $form = array();

  $form['#attributes'] = array('enctype' => "multipart/form-data");

  $form['peid'] = array(
    '#type' => 'value',
    '#value' => $pageear->peid,
  );

  // Info
  $form['info'] = array(
    '#type' => 'fieldset',
    '#title' => t('Pageear info'),
    '#collapsible' => TRUE,
  );

  $form['info']['status'] = array(
    '#type' => 'checkbox',
    '#title' => t('Enable pageear'),
    '#default_value' => $pageear->status,
    '#description' => t('If this setting is enabled, the current pageear is shown on the configured pages (you can configure visibility settings below).'),
  );

  $form['info']['name'] = array(
    '#type' => 'textfield',
    '#title' => t('Pageear name'),
    '#default_value' => $pageear->name,
    '#required' => TRUE,
    '#maxlength' => 64,
    '#size' => 40,
  );
  // End Info

  // Details
  $form['details'] = array(
    '#type' => 'fieldset',
    '#title' => t('Pageear details'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Position settings.
  $form['details']['position_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Position Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Set direction of pageear in left or right top browser corner ( topleft: left | topright: right ).
  $form['details']['position_settings']['peelPosition'] = array(
    '#type' => 'radios',
    '#title' => t('Corner'),
    '#description' => t('In what corner the ad will be displayed.'),
    '#options' => pageear_get_options('peelPosition'),
    '#default_value' => $pageear->peelPosition,
    '#required' => TRUE,
  );
  // End Position settings.


  // Image Settings.
  $form['details']['image_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Image Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // URL to small image.
  $form['details']['image_settings']['smallURL'] = array(
    '#type' => 'item',
    '#title' => t('Unpeeled image'),
    '#value' => $pageear->smallURL,
  );

  $form['details']['image_settings']['smallURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an image to show when the ad is not peeled (JPG, GIF or PNG 100x100 pixels).'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // URL to big image.
  $form['details']['image_settings']['bigURL'] = array(
    '#type' => 'item',
    '#title' => t('Peeled image'),
    '#value' => $pageear->bigURL,
  );

  $form['details']['image_settings']['bigURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an image to show when the ad is peeled (JPG, GIF or PNG 500x500 pixels).'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // Mirror image ( true | false ).
  $form['details']['image_settings']['mirror'] = array(
    '#type' => 'checkbox',
    '#title' => t('Back mirror'),
    '#default_value' => $pageear->mirror,
    '#description' => t('Mirror the ad on the back of the peeled page.'),
  );

  // In Transition for pageear.
  $form['details']['image_settings']['inTransition'] = array(
    '#type' => 'select',
    '#title' => t('In Transition'),
    '#description' => t('In Transition for the pageear.'),
    '#options' => pageear_get_options('inTransition'),
    '#default_value' => $pageear->inTransition,
    '#required' => TRUE,
  );

  // Duration of in transition (1-9).
  $form['details']['image_settings']['transitionDuration'] = array(
    '#type' => 'textfield',
    '#title' => t('Transition Duration'),
    '#description' => t('Duration of in transition. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->transitionDuration,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Color of peel back.
  $form['details']['image_settings']['peelColor'] = array(
    '#type' => 'radios',
    '#title' => t('Back color'),
    '#description' => t('This color will be used on the back of peel.'),
    '#options' => pageear_get_options('peelColor'),
    '#default_value' => $pageear->peelColor,
    '#required' => TRUE,
  );

  // Custom color.
  $form['details']['image_settings']['custom_color'] = array(
    '#type' => 'fieldset',
    '#title' => t('Custom Color'),
    '#collapsible' => TRUE,
  );

  // Custom Color on Peel.
  $form['details']['image_settings']['custom_color'] = array(
    '#type' => 'textfield',
    '#title' => t('Custom Color'),
    '#required' => TRUE,
    '#prefix' => '<div id="pageear_customcolor_picker"></div>',
    '#default_value' => rgb2hex($pageear->redValue, $pageear->greenValue, $pageear->blueValue),
    '#maxlength' => 7,
    '#size' => 8,
  );

  // Red Value for Custom Color Peel.
  $form['details']['image_settings']['redValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->redValue,
  );

  // Green Value for Custom Color Peel.
  $form['details']['image_settings']['greenValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->greenValue,
  );

  // Blue Value for Custom Color Peel.
  $form['details']['image_settings']['blueValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->blueValue,
  );
  // End Image Settings.


  // Sound Settings.
  $form['details']['sound_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Sound Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // URL to onload sound.
  $form['details']['sound_settings']['loadSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Onload Sound'),
    '#value' => $pageear->loadSoundURL,
  );

  $form['details']['sound_settings']['loadSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the ad is loaded.'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // URL to open peel sound.
  $form['details']['sound_settings']['openSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Open Peel Sound'),
    '#value' => $pageear->openSoundURL,
  );

  $form['details']['sound_settings']['openSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the peel is opened.'),
    '#tree' => FALSE,
    '#size' => 40,
  );

  // URL to close peel sound.
  $form['details']['sound_settings']['closeSoundURL'] = array(
    '#type' => 'item',
    '#title' => t('Close Peel Sound'),
    '#value' => $pageear->closeSoundURL,
  );

  $form['details']['sound_settings']['closeSoundURL_upload'] = array(
    '#type' => 'file',
    '#description' => t('Upload an mp3 file to play when the peel is closed.'),
    '#tree' => FALSE,
    '#size' => 40,
  );
  // End Sound Settings.


   // Linking Settings.
  $form['details']['linking_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('URL Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // URL to open on pageear click.
  $form['details']['linking_settings']['link'] = array(
    '#type' => 'textfield',
    '#title' => t('URL'),
    '#description' => t('URL to go when user click on the ad.'),
    '#required' => TRUE,
    '#default_value' => $pageear->link,
    '#size' => 40,
  );

  // Browser target (new) or self (self).
  $form['details']['linking_settings']['linkTarget'] = array(
    '#type' => 'radios',
    '#title' => t('URL target'),
    '#description' => t('Where to open the URL.'),
    '#options' => pageear_get_options('linkTarget'),
    '#default_value' => $pageear->linkTarget,
    '#required' => TRUE,
  );
  //End Linking Settings.

  
  // Motion Settings.
  $form['details']['motion_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Motion Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Speed of flag movement (1-9).
  $form['details']['motion_settings']['flagSpeed'] = array(
    '#type' => 'textfield',
    '#title' => t('Flag motion speed'),
    '#description' => t('Speed for flag motion. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->flagSpeed,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Speed of peel movement (1-9).
  $form['details']['motion_settings']['peelSpeed'] = array(
    '#type' => 'textfield',
    '#title' => t('Peel motion speed'),
    '#description' => t('Speed for peel motion. (1-9)'),
    '#required' => TRUE,
    '#default_value' => $pageear->peelSpeed,
    '#maxlength' => 1,
    '#size' => 8,
  );

  // Opens pageear automaticaly after configured seconds.
  $form['details']['motion_settings']['automaticOpen'] = array(
    '#type' => 'textfield',
    '#title' => t('Automatically peel on load'),
    '#description' => t('Unpeel automatically when the page loads after configured seconds. 0 means no automatically open.'),
    '#required' => TRUE,
    '#default_value' => $pageear->automaticOpen,
    '#maxlength' => 3,
    '#size' => 8,
  );

  // Seconds until pageear close after automatically open.
  $form['details']['motion_settings']['automaticClose'] = array(
    '#type' => 'textfield',
    '#title' => t('Automatically unpeel'),
    '#description' => t('Automatically close after unpeeling after configured seconds. 0 means no automatically unpeel.'),
    '#required' => TRUE,
    '#default_value' => $pageear->automaticClose,
    '#maxlength' => 3,
    '#size' => 8,
  );
  // End Motion Settings.
  

  // Close button settings.
  $form['details']['closebutton_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Close Button Settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Clickable button on open peel ( true | false ).
  $form['details']['closebutton_settings']['close_button_enable'] = array(
    '#type' => 'checkbox',
    '#title' => t('Close Button'),
    '#default_value' => $pageear->close_button_enable,
    '#description' => t('Show a close button on open peel. If this is enabled the peel will not close on mouse out. Users must click button to close peel.'),
  );

  // Text on close button.
  $form['details']['closebutton_settings']['text_on_close_button'] = array(
    '#type' => 'textfield',
    '#title' => t('Close Button Text'),
    '#description' => t('Text on clickable close button.'),
    '#required' => TRUE,
    '#default_value' => $pageear->text_on_close_button,
    '#size' => 40,
  );

  // Close Button Color.
  $form['details']['closebutton_settings']['closebutton_color'] = array(
    '#type' => 'textfield',
    '#title' => t('Close Button Color'),
    '#required' => TRUE,
    '#prefix' => '<div id="pageear_closebuttoncolor_picker"></div>',
    '#default_value' => rgb2hex($pageear->close_redValue, $pageear->close_greenValue, $pageear->close_blueValue),
    '#maxlength' => 7,
    '#size' => 8,
  );

  // Close Button Color Red Value.
  $form['details']['closebutton_settings']['close_redValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_redValue,
  );

  // Close Button Color Green Value.
  $form['details']['closebutton_settings']['close_greenValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_greenValue,
  );

  // Close Button Color Blue Value.
  $form['details']['closebutton_settings']['close_blueValue'] = array(
    '#type' => 'hidden',
    '#value' => $pageear->close_blueValue,
  );
  // End Close Button Settings.
  

  // Visibility settings.
  $form['visibility_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Pageear visibility settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );

  // Language-based visibility settings - only visible if 'locale' module enabled
  if (module_exists('locale')) {
    $form['visibility_settings']['language_vis_settings'] = array(
      '#type' => 'fieldset',
      '#title' => t('Language specific visibility settings'),
      '#collapsible' => TRUE,
      '#collapsed' => TRUE,
    );
    $language_options = locale_language_list('name');
    $form['visibility_settings']['language_vis_settings']['languages'] = array(
      '#type' => 'checkboxes',
      '#title' => t('Show pageear for specific languages'),
      '#options' => $language_options,
      '#default_value' => explode(',', $pageear->languages),
      '#description' => t('Show the pageear only for the selected language(s). If you select no languages, the pageear will be visible for all languages.'),
    );
  }

  
  // Role-based visibility settings (mostly borrowed from 'block.admin.inc')
  $result = db_query('SELECT rid, name FROM {role} ORDER BY name');
  $role_options = array();
  while ($role = db_fetch_object($result)) {
    $role_options[$role->rid] = $role->name;
  }
  $form['visibility_settings']['roles_vis_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Role specific visibility settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $form['visibility_settings']['roles_vis_settings']['roles'] = array(
    '#type' => 'checkboxes',
    '#title' => t('Show pageear for specific roles'),
    '#options' => $role_options,
    '#default_value' => explode(',', $pageear->roles),
    '#description' => t('Show the pageear only for the selected role(s). If you select no roles, the pageear will be visible to all users.'),
  );

  $form['visibility_settings']['page_vis_settings'] = array(
    '#type' => 'fieldset',
    '#title' => t('Page specific visibility settings'),
    '#collapsible' => TRUE,
    '#collapsed' => TRUE,
  );
  $access = user_access('use PHP for pageear visibility');

  if ($pageear->visibility == 2 && !$access) {
    $form['visibility_settings']['page_vis_settings'] = array();
    $form['visibility_settings']['page_vis_settings']['visibility'] = array(
      '#type' => 'value',
      '#value' => 2,
    );
    $form['visibility_settings']['page_vis_settings']['pages'] = array(
      '#type' => 'value',
      '#value' => $pageear->pages,
    );
  }
  else {
    $options = array(t('Show on every page except the listed pages.'), t('Show on only the listed pages.'));
    $description = t("Enter one page per line as Drupal paths. The '*' character is a wildcard. Example paths are %blog for the blog page and %blog-wildcard for every personal blog. %front is the front page.", array('%blog' => 'blog', '%blog-wildcard' => 'blog/*', '%front' => '<front>'));

    if ($access) {
      $options[] = t('Show if the following PHP code returns <code>TRUE</code> (PHP-mode, experts only).');
      $description .= ' '. t('If the PHP-mode is chosen, enter PHP code between %php. Note that executing incorrect PHP-code can break your Drupal site.', array('%php' => '<?php ?>'));
    }
    $form['visibility_settings']['page_vis_settings']['visibility'] = array(
      '#type' => 'radios',
      '#title' => t('Show pageear on specific pages'),
      '#options' => $options,
      '#default_value' => $pageear->visibility,
    );
    $form['visibility_settings']['page_vis_settings']['pages'] = array(
      '#type' => 'textarea',
      '#title' => t('Pages'),
      '#default_value' => $pageear->pages,
      '#description' => $description,
    );
  }


  if ($op == 'configure') {
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
    );
    $form['cancel'] = array(
      '#type' => 'markup',
      '#value' => l(t('Cancel'), referer_uri()),
    );
  }
  else if ($op == 'add' || $op == 'clone') {
    $form['submit'] = array(
      '#type' => 'submit',
      '#value' => t('Save'),
      '#submit' => array('pageear_admin_add_submit'),
    );
    $form['cancel'] = array(
      '#type' => 'markup',
      '#value' => l(t('Cancel'), referer_uri()),
    );
  }

  return $form;
}

/**
 * hook_validate: validation function for the pageear configuration form.
 */
function pageear_admin_configure_validate($form, &$form_state) {

  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;

  // checks if directory exist and creates it if it don't
  file_check_directory($directory_path, FILE_CREATE_DIRECTORY, 'file_directory_path');
  
  // uploads images from image upload fields
  foreach (array('smallURL', 'bigURL') as $image) {

    if ($file = file_save_upload($image .'_upload', array('file_validate_is_image' => array()))) {

      $parts = pathinfo($file->filename); 
  
      if ($parts['extension'] != 'jpeg' && $parts['extension'] != 'jpg' && $parts['extension'] != 'gif' && $parts['extension'] != 'png') {

        form_set_error($image, t('Uploaded image must be an image file. JPEG, PNG or GIF'));

      }
      else {

        $filename = $directory_path .'/'. $image .'_'. $form_state['values']['peid'] .'.'. $parts['extension'];

        if (file_copy($file, $filename)) {
          form_set_value($form['details']['image_settings'][$image], $file->filepath, $form_state);
        }

      }
    }
    else {
      form_set_value($form['details']['image_settings'][$image], $form['details']['image_settings'][$image]['#value'], $form_state);
    }

  }

  // uploads images from sound upload fields
  foreach (array('loadSoundURL', 'openSoundURL', 'closeSoundURL') as $sound) {

    if ($file = file_save_upload($sound .'_upload')) {

      $parts = pathinfo($file->filename);
  
      if ($parts['extension'] != 'mp3') {

        form_set_error($sound, t('Uploaded sound must be a MP3 file.'));
  
      }
      else {

        $filename = $directory_path .'/'. $sound .'_'. $form_state['values']['peid'] .'.'. $parts['extension'];

        if (file_copy($file, $filename)) {
          form_set_value($form['details']['sound_settings'][$sound], $file->filepath, $form_state);
        }

      }
    }
    else {
      form_set_value($form['details']['sound_settings'][$sound], $form['details']['sound_settings'][$sound]['#value'], $form_state);
    }

  }

  // Duration of transition validation
  if (!is_numeric($form_state['values']['transitionDuration']) || $form_state['values']['transitionDuration'] == 0) {
    form_set_error('transitionDuration', t('Transition duration must be a number between 1 and 9'));
  }

  // Peel custom color validation.
  // If user sets color manually with input textfield wrong hex values would be ignored by conversion function.
  $custom_rgb_peel_color = hex2rgb($form_state['values']['custom_color']);
  form_set_value($form['details']['image_settings']['redValue'], $custom_rgb_peel_color[0], $form_state);
  form_set_value($form['details']['image_settings']['greenValue'], $custom_rgb_peel_color[1], $form_state);
  form_set_value($form['details']['image_settings']['blueValue'], $custom_rgb_peel_color[2], $form_state);

  // Flag speed validation
  if (!is_numeric($form_state['values']['flagSpeed']) || $form_state['values']['flagSpeed'] == 0) {
    form_set_error('flagSpeed', t('Flag motion speed must be a number between 1 and 9'));
  }

  // Peel speed validation
  if (!is_numeric($form_state['values']['peelSpeed']) || $form_state['values']['peelSpeed'] == 0) {
    form_set_error('peelSpeed', t('Peel motion speed must be a number between 1 and 9'));
  }

  // AutomaticOpen validation
  if (!is_numeric($form_state['values']['automaticOpen']) || $form_state['values']['automaticOpen'] < 0) {
    form_set_error('automaticOpen', t('Automatically peel onload seconds must be a number between 0 and 999'));
  }

  // AutomaticClose validation
  if (!is_numeric($form_state['values']['automaticClose']) || $form_state['values']['automaticClose'] < 0) {
    form_set_error('automaticClose', t('Automatically peel onclose seconds must be a number between 0 and 999'));
  }

  // Close button color validation
  // If user sets color manually with input textfield wrong hex values would be ignored by conversion function.
  $custom_rgb_close_button_color = hex2rgb($form_state['values']['closebutton_color']);
  form_set_value($form['details']['closebutton_settings']['close_redValue'], $custom_rgb_close_button_color[0], $form_state);
  form_set_value($form['details']['closebutton_settings']['close_greenValue'], $custom_rgb_close_button_color[1], $form_state);
  form_set_value($form['details']['closebutton_settings']['close_blueValue'], $custom_rgb_close_button_color[2], $form_state);

}

/**
 * hook_submit: submit function for the pageear configuration form.
 */
function pageear_admin_configure_submit($form, &$form_state) {

  // Save the edited pageear
  if (!form_get_errors()) {

    // previous status of this pageear before starting configuration
    $sql = "SELECT p.status FROM {pageears} p";
    $sql .= " WHERE peid = %d";
    $previous_status = db_fetch_object(db_query($sql, $form_state['values']['peid']))->status;

    if (module_exists('locale')) {
      $languages = implode(',', $form_state['values']['languages']);
    }
    else {
      $languages = '';
    }
    $roles = implode(',', $form_state['values']['roles']);

    $sql = "UPDATE {pageears} SET";
    $sql .= " status = '%d', name = '%s', peelPosition = '%s', smallURL = '%s', bigURL = '%s', mirror = '%d', inTransition = '%s', transitionDuration = '%d', peelColor = '%s', redValue = '%d', greenValue = '%d', blueValue = '%d', linkTarget = '%s', link = '%s', loadSoundURL = '%s', openSoundURL = '%s', closeSoundURL = '%s', flagSpeed = '%d', peelSpeed = '%d', automaticOpen = '%d', automaticClose = '%d', close_button_enable = '%d', text_on_close_button = '%s', close_redValue = '%d', close_greenValue = '%d', close_blueValue = '%d', languages = '%s', roles = '%s', visibility = '%d', pages = '%s'";
    $sql .= " WHERE peid = %d";
    db_query($sql,
      $form_state['values']['status'],
      $form_state['values']['name'],
      $form_state['values']['peelPosition'],
      $form_state['values']['smallURL'],
      $form_state['values']['bigURL'],
      $form_state['values']['mirror'],
      $form_state['values']['inTransition'],
      $form_state['values']['transitionDuration'],
      $form_state['values']['peelColor'],
      $form_state['values']['redValue'],
      $form_state['values']['greenValue'],
      $form_state['values']['blueValue'],
      $form_state['values']['linkTarget'],
      $form_state['values']['link'],
      $form_state['values']['loadSoundURL'],
      $form_state['values']['openSoundURL'],
      $form_state['values']['closeSoundURL'],
      $form_state['values']['flagSpeed'],
      $form_state['values']['peelSpeed'],
      $form_state['values']['automaticOpen'],
      $form_state['values']['automaticClose'],
      $form_state['values']['close_button_enable'],
      $form_state['values']['text_on_close_button'],
      $form_state['values']['close_redValue'],
      $form_state['values']['close_greenValue'],
      $form_state['values']['close_blueValue'],
      $languages,
      $roles,
      $form_state['values']['visibility'],
      $form_state['values']['pages'],
      $form_state['values']['peid']
    );

    // Update the global variable numEnabledPageears that tracks number of pageears enabled
    if ($form_state['values']['status'] != $previous_status) {
      if ($form_state['values']['status']) {
        variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);
      }
      else {
        variable_set('numEnabledPageears', variable_get('numEnabledPageears', 1) - 1);
      }
    }

    drupal_set_message(t('The pageear %name has been saved.', array('%name' => $form_state['values']['name'])));
    $form_state['redirect'] = 'admin/build/pageear';
  }

  return;
}

/**
 * hook_submit: when adding new pageear.
 */
function pageear_admin_add_submit($form, &$form_state) {

  if (module_exists('locale')) {
    $languages = implode(',', $form_state['values']['languages']);
  }
  else {
    $languages = '';
  }
  $roles = implode(',', $form_state['values']['roles']);
  
  $sql = "INSERT INTO {pageears} (status, name, peelPosition, smallURL, bigURL, mirror, inTransition, transitionDuration, peelColor, redValue, greenValue, blueValue, linkTarget, link, loadSoundURL, openSoundURL, closeSoundURL, flagSpeed, peelSpeed, automaticOpen, automaticClose, close_button_enable, text_on_close_button, close_redValue, close_greenValue, close_blueValue, languages, roles, visibility, pages)";
  $sql .= " VALUES ('%d', '%s', '%s', '%s', '%s', '%d', '%s', '%d', '%s', '%d', '%d', '%d', '%s', '%s', '%s', '%s', '%s', '%d', '%d', '%d', '%d', '%d', '%s', '%d', '%d', '%d', '%s', '%s', '%d', '%s')";
  
  db_query($sql,
    $form_state['values']['status'],
    $form_state['values']['name'],
    $form_state['values']['peelPosition'],
    $form_state['values']['smallURL'],
    $form_state['values']['bigURL'],
    $form_state['values']['mirror'],
    $form_state['values']['inTransition'],
    $form_state['values']['transitionDuration'],
    $form_state['values']['peelColor'],
    $form_state['values']['redValue'],
    $form_state['values']['greenValue'],
    $form_state['values']['blueValue'],
    $form_state['values']['linkTarget'],
    $form_state['values']['link'],
    $form_state['values']['loadSoundURL'],
    $form_state['values']['openSoundURL'],
    $form_state['values']['closeSoundURL'],
    $form_state['values']['flagSpeed'],
    $form_state['values']['peelSpeed'],
    $form_state['values']['automaticOpen'],
    $form_state['values']['automaticClose'],
    $form_state['values']['close_button_enable'],
    $form_state['values']['text_on_close_button'],
    $form_state['values']['close_redValue'],
    $form_state['values']['close_greenValue'],
    $form_state['values']['close_blueValue'],
    $languages,
    $roles,
    $form_state['values']['visibility'],
    $form_state['values']['pages']
  );
  
  // Move any images or sounds 
  // to reflect the peid on its names
    
  // get last used peid
  $last_used_peid = db_last_insert_id('pageears', 'peid');
  
  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;
  
  foreach (array('smallURL', 'bigURL', 'loadSoundURL', 'openSoundURL', 'closeSoundURL') as $image_sound) {

    //if ($image_sound == 'smallURL' || $image_sound == 'bigURL') {
    //  $extension = '.jpg';
    //}
    //else {
    //  $extension = '.mp3';
    //}

    $stringparts = explode(".", $form_state['values'][$image_sound]);
    $extension = $stringparts[count($stringparts)-1];

    $source_path = $form_state['values'][$image_sound];
    if ($source_path != '') {
      $destination_path = $directory_path .'/'. $image_sound .'_'. $last_used_peid .'.'. $extension;
      file_copy($source_path, $destination_path, FILE_EXISTS_REPLACE);
      
      $sql = "UPDATE {pageears} SET";
      $sql .= " ". $image_sound ." = '%s'";
      $sql .= " WHERE peid = %d";
      db_query($sql,
        $destination_path,
        $last_used_peid
      );

    }

  }
  
  // Delete possible images sounds uploaded with peid=0
  delete_images_sounds(0);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  if ($form_state['values']['status']) {
    variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);
  }

  drupal_set_message(t('The pageear %name has been created.', array('%name' => $form_state['values']['name'])));
  $form_state['redirect'] = 'admin/build/pageear';
  return;
}

/**
 * Menu callback: disable a specific pageear.
 */
function pageear_admin_disable($pageear) {
  db_query("UPDATE {pageears} SET status = 0 WHERE peid = %d", $pageear->peid);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  variable_set('numEnabledPageears', variable_get('numEnabledPageears', 1) - 1);

  drupal_goto('admin/build/pageear');
}

/**
 * Menu callback: enable a specific pageear.
 */
function pageear_admin_enable($pageear) {
  db_query("UPDATE {pageears} SET status = 1 WHERE peid = %d", $pageear->peid);

  // Update the global variable numEnabledPageears that tracks number of pageears enabled
  variable_set('numEnabledPageears', variable_get('numEnabledPageears', 0) + 1);

  drupal_goto('admin/build/pageear');
}

/**
 * Deletes images and sounds for specific pageear.
 */
function delete_images_sounds($peid) {

  $directory_path = file_directory_path() .'/'. PAGEEAR_PATH_IMAGES;
  // if the directory where files reside does not exists nothing to do
  if (!file_check_directory($directory_path)) {
    return;
  }

  foreach (array('smallURL', 'bigURL', 'loadSoundURL', 'openSoundURL', 'closeSoundURL') as $image_sound) {

    if ($image_sound == 'smallURL' || $image_sound == 'bigURL') {
      $extensions = array('.jpg', '.jpeg', '.gif', '.png');
    }
    else {
      $extensions = array('.mp3');
    }

    foreach ($extensions as $extension) {

      $filename = $directory_path .'/'. $image_sound .'_'. $peid;
      $filepath = $filename . $extension;
      file_delete($filepath);
    
      $i = 0;
      $filepath = $filename .'_'. $i . $extension;
      while (file_delete($filepath)) {
        $i += 1;
        $filepath = $filename .'_'. $i . $extension;
      }

    }

  }  

}

/**
 * Menu callback; confirm deletion of a pageear.
 */
function pageear_admin_delete($form_state, $pageear) {
  $form['pageear'] = array('#type' => 'hidden', '#value' => serialize($pageear));
  $params = array('%name' => $pageear->name);
  return confirm_form($form, t('Are you sure you want to delete the pageear %name?', $params), 'admin/build/pageear', NULL, t('Delete'), t('Cancel'));
}

function pageear_admin_delete_submit($form, &$form_state) {
  $pageear = unserialize($form_state['values']['pageear']);
  db_query('DELETE FROM {pageears} WHERE peid = %d', $pageear->peid);

  delete_images_sounds($pageear->peid);

  drupal_set_message(t('The pageear %name has been removed.', array('%name' => $pageear->name)));
  $form_state['redirect'] = 'admin/build/pageear';
  return;
}

/**
 * Helper functions for color conversions
 */

function hex2rgb($color) {

  if ($color[0] == '#') {
    $color = substr($color, 1);
  }

  if (strlen($color) == 6) {
    list($r, $g, $b) = array(
      $color[0] . $color[1],
      $color[2] . $color[3],
      $color[4] . $color[5]
    );
  }
  elseif (strlen($color) == 3) {
    list($r, $g, $b) = array(
      $color[0] . $color[0],
      $color[1] . $color[1],
      $color[2] . $color[2]
    );
  }
  else {
    return array(0, 0, 0);
  }

  $r = hexdec($r);
  $g = hexdec($g);
  $b = hexdec($b);
  return array($r, $g, $b);
}

function rgb2hex($r, $g=-1, $b=-1) {

  if (is_array($r) && sizeof($r) == 3) {
    list($r, $g, $b) = $r;
  }

  $r = intval($r);
  $g = intval($g);
  $b = intval($b);

  $r = dechex($r<0?0:($r>255?255:$r));
  $g = dechex($g<0?0:($g>255?255:$g));
  $b = dechex($b<0?0:($b>255?255:$b));

  $color = (strlen($r) < 2?'0':'') . $r;
  $color .= (strlen($g) < 2?'0':'') . $g;
  $color .= (strlen($b) < 2?'0':'') . $b;
  return '#'. $color;
}