<?php
#declare(strict_types=1);

/**
 * User subscription page
 */

if (isset($LoggedUser['PostsPerPage'])) {
    $PerPage = $LoggedUser['PostsPerPage'];
} else {
    $PerPage = POSTS_PER_PAGE;
}
list($Page, $Limit) = Format::page_limit($PerPage);

View::show_header('Subscriptions', 'subscriptions');

$ShowUnread = (!isset($_GET['showunread']) && !isset($HeavyInfo['SubscriptionsUnread']) || isset($HeavyInfo['SubscriptionsUnread']) && !!$HeavyInfo['SubscriptionsUnread'] || isset($_GET['showunread']) && !!$_GET['showunread']);
$ShowCollapsed = (!isset($_GET['collapse']) && !isset($HeavyInfo['SubscriptionsCollapse']) || isset($HeavyInfo['SubscriptionsCollapse']) && !!$HeavyInfo['SubscriptionsCollapse'] || isset($_GET['collapse']) && !!$_GET['collapse']);

// The monster sql query:
/*
 * Fields:
 * Page (artist, collages, requests, torrents or forums)
 * PageID (ArtistID, CollageID, RequestID, GroupID, TopicID)
 * PostID (of the last read post)
 * ForumID
 * ForumName
 * Name (for artists and collages; carries the topic title for forum subscriptions)
 * LastPost (PostID of the last post)
 * LastPostTime
 * LastReadBody
 * LastReadEditedTime
 * LastReadUserID
 * LastReadUsername
 * LastReadAvatar
 * LastReadEditedUserID
 */
$DB->prepared_query("
  (SELECT
    SQL_CALC_FOUND_ROWS
    s.`Page`,
    s.`PageID`,
    lr.`PostID`,
    null AS ForumID,
    null AS ForumName,
    IF(s.`Page` = 'artist', a.`Name`, co.`Name`) AS Name,
    c.`ID` AS LastPost,
    c.`AddedTime` AS LastPostTime,
    c_lr.`Body` AS LastReadBody,
    c_lr.`EditedTime` AS LastReadEditedTime,
    um.`ID` AS LastReadUserID,
    um.`Username` AS LastReadUsername,
    ui.`Avatar` AS LastReadAvatar,
    c_lr.`EditedUserID` AS LastReadEditedUserID
  FROM `users_subscriptions_comments` AS s
    LEFT JOIN `users_comments_last_read` AS lr ON lr.`UserID` = $LoggedUser[ID] AND lr.`Page` = s.`Page` AND lr.`PageID` = s.`PageID`
    LEFT JOIN `artists_group` AS a ON s.`Page` = 'artist' AND a.`ArtistID` = s.`PageID`
    LEFT JOIN `collages` AS co ON s.`Page` = 'collages' AND co.`ID` = s.`PageID`
    LEFT JOIN `comments` AS c ON c.`ID` = (
          SELECT MAX(`ID`)
          FROM `comments`
          WHERE `Page` = s.`Page`
            AND `PageID` = s.`PageID`
        )
    LEFT JOIN `comments` AS c_lr ON c_lr.`ID` = lr.`PostID`
    LEFT JOIN `users_main` AS um ON um.`ID` = c_lr.`AuthorID`
    LEFT JOIN `users_info` AS ui ON ui.`UserID` = um.`ID`
  WHERE s.`UserID` = $LoggedUser[ID] AND s.`Page` IN ('artist', 'collages', 'requests', 'torrents') AND (s.`Page` != 'collages' OR co.`Deleted` = '0')" . ($ShowUnread ? ' AND c.`ID` > IF(lr.`PostID` IS NULL, 0, lr.`PostID`)' : '') . "
  GROUP BY s.`PageID`)
  UNION ALL
  (SELECT 'forums', s.`TopicID`, lr.`PostID`, f.`ID`, f.`Name`, t.`Title`, p.`ID`, p.`AddedTime`, p_lr.`Body`, p_lr.`EditedTime`, um.`ID`, um.`Username`, ui.`Avatar`, p_lr.`EditedUserID`
  FROM `users_subscriptions` AS s
    LEFT JOIN `forums_last_read_topics` AS lr ON lr.`UserID` = $LoggedUser[ID] AND s.`TopicID` = lr.`TopicID`
    LEFT JOIN `forums_topics` AS t ON t.`ID` = s.`TopicID`
    LEFT JOIN `forums` AS f ON f.`ID` = t.`ForumID`
    LEFT JOIN `forums_posts` AS p ON p.`ID` = (
          SELECT MAX(`ID`)
          FROM `forums_posts`
          WHERE `TopicID` = s.`TopicID`
        )
    LEFT JOIN `forums_posts` AS p_lr ON p_lr.`ID` = lr.`PostID`
    LEFT JOIN `users_main` AS um ON um.`ID` = p_lr.`AuthorID`
    LEFT JOIN `users_info` AS ui ON ui.`UserID` = um.`ID`
  WHERE s.`UserID` = $LoggedUser[ID]" .
    ($ShowUnread ? " AND p.`ID` > IF(t.`IsLocked` = '1' AND t.`IsSticky` = '0'" . ", p.`ID`, IF(lr.`PostID` IS NULL, 0, lr.`PostID`))" : '') .
    ' AND ' . Forums::user_forums_sql() . "
  GROUP BY t.`ID`)
  ORDER BY `LastPostTime` DESC
  LIMIT $Limit");

$Results = $DB->to_array(false, MYSQLI_ASSOC, false);
$DB->prepared_query('SELECT FOUND_ROWS()');
list($NumResults) = $DB->next_record();

$Debug->log_var($Results, 'Results');

$TorrentGroups = $Requests = [];
foreach ($Results as $Result) {
    if ($Result['Page'] === 'torrents') {
        $TorrentGroups[] = $Result['PageID'];
    } elseif ($Result['Page'] === 'requests') {
        $Requests[] = $Result['PageID'];
    }
}

$TorrentGroups = Torrents::get_groups($TorrentGroups, true, true, false);
$Requests = Requests::get_requests($Requests);
?>

<div>
  <div class="header">
    <h2>Subscriptions<?=$ShowUnread ? ' with unread posts' . ($NumResults ? ' (' . $NumResults . ' new)' : '') : ''?>
    </h2>

    <div class="linkbox">
      <?php
if (!$ShowUnread) {
    ?>
      <br /><br />
      <a href="userhistory.php?action=subscriptions&amp;showunread=1" class="brackets">Only display subscriptions with
        unread replies</a>&nbsp;&nbsp;&nbsp;
      <?php
} else {
        ?>
      <br /><br />
      <a href="userhistory.php?action=subscriptions&amp;showunread=0" class="brackets">Show all
        subscriptions</a>&nbsp;&nbsp;&nbsp;
      <?php
    }
if ($NumResults) {
    ?>
      <a href="#" onclick="Collapse(); return false;" id="collapselink" class="brackets"><?=$ShowCollapsed ? 'Show' : 'Hide' ?>
        post bodies</a>&nbsp;&nbsp;&nbsp;
      <?php
}
?>
      <a href="userhistory.php?action=catchup&amp;auth=<?=$LoggedUser['AuthKey']?>"
        class="brackets">Catch up</a>&nbsp;&nbsp;&nbsp;
      <a href="userhistory.php?action=posts&amp;userid=<?=$LoggedUser['ID']?>"
        class="brackets">Go to post history</a>&nbsp;&nbsp;&nbsp;
      <a href="userhistory.php?action=quote_notifications" class="brackets">Quote notifications</a>&nbsp;&nbsp;&nbsp;
    </div>
  </div>
  <?php
if (!$NumResults) {
    ?>
  <div class="center">
    No subscriptions<?=$ShowUnread ? ' with unread posts' : ''?>
  </div>
  <?php
} else {
        ?>
  <div class="linkbox">
    <?php
  $Pages = Format::get_pages($Page, $NumResults, $PerPage, 11);
        echo $Pages; ?>
  </div>
  <?php
  foreach ($Results as $Result) {
      switch ($Result['Page']) {
      case 'artist':
        $Links = 'Artist: <a href="artist.php?id=' . $Result['PageID'] . '">' . display_str($Result['Name']) . '</a>';
        $JumpLink = 'artist.php?id=' . $Result['PageID'] . '&amp;postid=' . $Result['PostID'] . '#post' . $Result['PostID'];
        break;


      case 'collages':
        $Links = 'Collage: <a href="collages.php?id=' . $Result['PageID'] . '">' . display_str($Result['Name']) . '</a>';
        $JumpLink = 'collages.php?action=comments&collageid=' . $Result['PageID'] . '&amp;postid=' . $Result['PostID'] . '#post' . $Result['PostID'];
        break;


      case 'requests':
        if (!isset($Requests[$Result['PageID']])) {
            continue;
        }

        $Request = $Requests[$Result['PageID']];
        $CategoryName = $Categories[$CategoryID - 1];

        $Links = 'Request: ';
            $Links .= '<a href="requests.php?action=view&amp;id=' . $Result['PageID'] . '">' . $Request['Title'] . "</a>";
        $JumpLink = 'requests.php?action=view&amp;id=' . $Result['PageID'] . '&amp;postid=' . $Result['PostID'] . '#post' . $Result['PostID'];
        break;


      case 'torrents':
        if (!isset($TorrentGroups[$Result['PageID']])) {
            continue;
        }

        $GroupInfo = $TorrentGroups[$Result['PageID']];
        $Links = 'Torrent: ' . Artists::display_artists($GroupInfo['ExtendedArtists']) . '<a href="torrents.php?id=' . $GroupInfo['id'] . '" dir="ltr">' . $GroupInfo['title'] . '</a>';
       
        if ($GroupInfo['year'] > 0) {
            $Links .= " [" . $GroupInfo['year'] . "]";
        }

        $JumpLink = 'torrents.php?id=' . $GroupInfo['ID'] . '&amp;postid=' . $Result['PostID'] . '#post' . $Result['PostID'];
        break;


      case 'forums':
        $Links = 'Forums: <a href="forums.php?action=viewforum&amp;forumid=' . $Result['ForumID'] . '">' . display_str($Result['ForumName']) . '</a> &gt; ' .
          '<a href="forums.php?action=viewthread&amp;threadid=' . $Result['PageID'] .
            '" class="tooltip" title="' . display_str($Result['Name']) . '">' .
            display_str(Format::cut_string($Result['Name'], 75)) .
          '</a>';
        $JumpLink = 'forums.php?action=viewthread&amp;threadid=' . $Result['PageID'] . '&amp;postid=' . $Result['PostID'] . '#post' . $Result['PostID'];
        break;

      default:
        error(0);
    } ?>

  <table
    class="forum_post box vertical_margin<?=(!Users::has_avatars_enabled() ? ' noavatar' : '')?>">
    <colgroup>
      <?php if (Users::has_avatars_enabled()) { ?>
      <col class="col_avatar" />
      <?php } ?>
      <col class="col_post_body" />
    </colgroup>
    <tr
      class="colhead_dark notify_<?=$Result['Page']?>">
      <td colspan="<?=Users::has_avatars_enabled() ? 2 : 1 ?>">
        <span class="float_left">
          <?=$Links . ($Result['PostID'] < $Result['LastPost'] ? ' <span class="new">(New!)</span>' : '')?>
        </span>
        <a class="tooltip last_read" title="Jump to last read"
          href="<?=$JumpLink?>">
          &rarr;
          <!--
          <svg width="15" height="11">
            <polygon points="0,3 0,8 8,8 8,11 15,5.5 8,0 8,3" /></svg>
          -->
        </a>
        <?php if ($Result['Page'] === 'forums') { ?>
        <span id="bar<?=$Result['PostID'] ?>"
          class="float_right">
          <a href="#"
            onclick="Subscribe(<?=$Result['PageID']?>); return false;"
            id="subscribelink<?=$Result['PageID']?>"
            class="brackets">Unsubscribe</a>
          <?php } else { ?>
          <span
            id="bar_<?=$Result['Page'] . $Result['PostID'] ?>"
            class="float_right">
            <a href="#"
              onclick="SubscribeComments('<?=$Result['Page']?>', <?=$Result['PageID']?>); return false;"
              id="subscribelink_<?=$Result['Page'] . $Result['PageID']?>"
              class="brackets">Unsubscribe</a>
            <?php } ?>
            &nbsp;
            <a href="#">&uarr;</a>
          </span>
      </td>
    </tr>
    <?php if (!empty($Result['LastReadBody'])) { // if a user is subscribed to a topic/comments but hasn't accessed the site ever, LastReadBody will be null - in this case we don't display a post.?>
    <tr
      class="row<?=$ShowCollapsed ? ' hidden' : '' ?>">
      <?php if (Users::has_avatars_enabled()) { ?>
      <td class="avatar" valign="top">
        <?=Users::show_avatar($Result['LastReadAvatar'], $Result['LastReadUserID'], $Result['LastReadUsername'], $HeavyInfo['DisableAvatars'])?>
      </td>
      <?php } ?>
      <td class="body" valign="top">
        <div class="content3">
          <?=Text::full_format($Result['LastReadBody']) ?>
          <?php if ($Result['LastReadEditedUserID']) { ?>
          <br /><br />
          Last edited by <?=Users::format_username($Result['LastReadEditedUserID'], false, false, false) ?>
          <?=time_diff($Result['LastReadEditedTime'])?>
          <?php } ?>
        </div>
      </td>
    </tr>
    <?php } ?>
  </table>
  <?php
  } ?>

  <div class="linkbox">
    <?=$Pages?>
  </div>
  <?php
    }?>
</div>

<?php View::show_footer();