<?php
// $Id: flickr_sets.module,v 1.11.2.2 2010-09-29 22:32:29 paulbooker Exp $

require_once(drupal_get_path('module', 'flickr') . '/flickr.inc');

/**
 * Implements hook_menu().
 */
function flickr_sets_menu() {
  $items['flickr/%user/sets'] = array(
    'title' => 'Sets',
    'description' => 'Display the Flickr photosets for the specified user',
    'page callback' => 'flickr_sets_photosets',
    'page arguments' => array(1),
    'access callback' => 'flickr_photos_access',
    'access arguments' => array(1),
  );
  $items['flickr/%user/sets/list'] = array(
    'title' => 'List',
    'description' => 'Display the Flickr photosets for the specified user',
    'type' => MENU_LOCAL_TASK,
  );
  $items['flickr/%user/sets/%flickr_set'] = array(
    'title' => 'Flickr photoset',
    'page callback' => 'flickr_sets_photoset',
    'page arguments' => array(1, 3),
    'access callback' => 'flickr_photos_access',
    'access arguments' => array(1),
  );
  return $items;
}

function flickr_set_load($sid, $page = 1) {
  // TODO: Not sure why this called for /flickr and does not show for admin role
  if (is_numeric($sid)) { 
    return flickr_request('flickr.photosets.getPhotos',
      array(
        'photoset_id' => $sid,
        'page' => $page,
        'per_page' => variable_get('flickr_photos_per_page', 20),
      )
    );
  }
}

function flickr_sets_page_title($user) {
  return 'Flickr photosets - ' . $user->name;
}

function flickr_sets_photosets($account, $nsid = NULL) {
  global $pager_page_array, $pager_total, $pager_total_items, $user;

  drupal_set_title(flickr_sets_page_title($user));
  drupal_add_css(drupal_get_path('module', 'flickr') . '/flickr.css');

  $uid = $account->uid;
  $nsid = $account->flickr['nsid'];
  //set this to something else if you want multiple pagers
  $element = 0;
  $pager_page_array[$element] = empty($_GET['page']) ? 0 : (int) $_GET['page'];

  $set_response = flickr_photoset_get_list($nsid);

  if ($set_response === FALSE) {
    drupal_set_message(t('Error retrieving %user\'s photosets from Flickr', array('%user' => $account->name)));
    return '';
  }
  if (!$set_response || empty($set_response)) {
    drupal_set_message(t('%user has no photosets', array('%user' => $account->name)));
    return '';
  }

  //set pager information we just acquired
  $pager_total[$element] = ceil(count($set_response)/variable_get('flickr_photosets_per_page', 20));
  $pager_total_items[$element] = count($set_response);

  return theme('flickr_sets_photosets', array('uid' => $uid, 'nsid' => $nsid, 'photosets' => $set_response));
}

function flickr_sets_photoset($account, $set) {
  global $pager_page_array, $pager_total, $pager_total_items, $user;

  drupal_add_css(drupal_get_path('module', 'flickr') . '/flickr.css');

  $uid = $user->uid;
  $nsid = $account->flickr['nsid'];

  $set_id = $set['photoset']['id'];
  $set_info = flickr_photoset_get_info($set_id);

  //make sure that $nsid is the real owner of $set_id
  if ($nsid != $set_info['owner']) {
    drupal_goto('flickr/' . $uid . '/sets');
  }

  //display photos
  //set this to something else if you want multiple pagers
  $element = 0;
  $pager_page_array[$element] = empty($_GET['page']) ? 0 : (int) $_GET['page'];
  $per_page = variable_get('flickr_photos_per_page', 20);

  //request set photos
  $set_response = flickr_set_load($set_id, $pager_page_array[$element] + 1);

  if (!$set_response) {
    drupal_set_message(t('Error retrieving :setid\'s photosets from Flickr'), array(':setid', $set_id));
    return '';
  }
  elseif (!isset($set_response['photoset']['photo']) || empty($set_response['photoset']['photo'])) {
    drupal_set_message(t('This photoset is empty'));
    return '';
  }

  //set pager information we just acquired
  $pager_total_items[$element] = $set_response['photoset']['total'];
  $pager_total[$element] = $set_response['photoset']['pages'];

  return theme('flickr_sets_photoset', array('uid' => $uid, 'per_page' => $per_page, 'photo_arr' => $set_response, 'set_info' => $set_info));
}

/**
 * Implementation of hook_theme().
 */
function flickr_sets_theme() {
  return array(
    'flickr_sets_photosets' => array(
      'variables' => array('uid', 'nsid', 'photosets'),
    ),
    'flickr_sets_photoset' => array(
      'variables' => array('uid', 'per_page', 'photo_arr', 'set_info'),
    ),
    'flickr_sets_photoset_box' => array(
      'variables' => array('uid', 'photoset', 'size' => 'NULL', 'format' => NULL),
    ),
  );
}

function theme_flickr_sets_photosets($variables) {
  $uid = $variables['uid'];
  $nsid = $variables['nsid'];
  $photosets = $variables['photosets'];

  $output = theme('pager', array('quantity' => variable_get('flickr_photosets_per_page', 20)));
  $output .= "<div class='flickr-photosets'>\n";
  foreach ((array) $photosets as $photoset) {
    $output .= theme('flickr_sets_photoset_box', array('photoset' => $photoset, 'uid' => $uid, 'nsid' => $nsid, 'size' => 's'));
  }
  $output .= '</div>';
  $output .= theme('pager', array('quantity' => variable_get('flickr_photosets_per_page', 20)));
  return $output;
}

function theme_flickr_sets_photoset($variables) {
  $uid = $variables['uid'];
  $per_page = $variables['per_page'];
  $photo_arr = $variables['photo_arr'];
  $set_info = $variables['set_info'];
  
  $output = theme('pager', array('quantity' => variable_get('flickr_photos_per_page', 20)));
  $output .= "<div class='flickr-photoset'>\n";
  foreach ((array) $photo_arr['photoset']['photo'] as $photo) {
    //insert owner into $photo because theme_flickr_photo_box/flickr_photo_page_url needs it
    $photo['owner'] = $set_info['owner'];
    $output .= theme('flickr_photo_box', array('photo' => $photo, 'size' => 'm'));
  }
  $output .= '</div>';
  $output .= theme('pager', array('quantity' => variable_get('flickr_photos_per_page', 20)));
  
  return $output; 
}

function theme_flickr_sets_photoset_box($variables) {
  $uid = $variables['uid'];
  $photoset = $variables['photoset'];
  $size = $variables['size'];
  $format = $variables['format'];
   
  $title = is_array($photoset['title']) ? $photoset['title']['_content'] : $photoset['title'];

  $output = "<div class='flickr-photoset-box'>\n";
  $output .= l(flickr_img($photoset, $size), "flickr/{$uid}/sets/{$photoset['id']}", array('html' => TRUE)) . "\n";
  $output .= '<div class="flickr-photoset-title">' . l($title, "flickr/{$uid}/sets/{$photoset['id']}") . "</div>\n";
  $output .= '<div class="flickr-photoset-count">' . format_plural($photoset['photos'], '@count photo', '@count photos') . "</div>\n";
  $output .= "</div>\n";

  return $output;
}