<?php

// Debug
# ini_set('display_errors', '1');
# ini_set('display_startup_errors', '1');
# error_reporting(E_ALL);

// Load dependencies
require_once __DIR__ . '/../../vendor/autoload.php';

// Init config
$config = json_decode(
  file_get_contents(
    __DIR__ . '/../../config.json'
  )
);

// Show totals in placeholder

// Init
$client = new \Manticoresearch\Client(
  [
    'host' => $config->manticore->server->host,
    'port' => $config->manticore->server->port,
  ]
);

// Init index
$index = $client->index(
    $config->manticore->index->document->name
);

// Get totals
$total = $index->search('')
               ->option('cutoff', 0)
               ->limit(0)
               ->get()
               ->getTotal();

$placeholder = sprintf(
  _('Search in %s documents %s'),
  number_format(
      $total
  ),
  $config->webui->search->index->request->url->enabled ? _('or enter new address to crawl...') : false
);

// Get document data
$document = $index->getDocumentById(
  isset($_GET['i']) ? $_GET['i'] : 0
);

// Get icon
$hostname = parse_url(
  $document->url,
  PHP_URL_HOST
);

$identicon = new \Jdenticon\Identicon();

$identicon->setValue(
  $hostname
);

$identicon->setSize(36);

$identicon->setStyle(
  [
    'backgroundColor' => 'rgba(255, 255, 255, 0)',
    'padding' => 0
  ]
);

$icon = $identicon->getImageDataUri('webp');

// Get snaps info
$snaps = [];

/// Prepare location
$filepath = implode(
  '/',
  str_split(
    $document->getId()
  )
);

/// Local snaps
if ($config->snap->storage->local->enabled)
{
  /// absolute
  if ('/' === substr($config->snap->storage->local->directory, 0, 1))
  {
    $prefix = $config->snap->storage->local->directory;
  }

  /// relative
  else
  {
    $prefix = __DIR__ . '/../../' . $config->snap->storage->local->directory;
  }

  $directory = sprintf('%s/%s', $prefix, $filepath);

  if (is_dir($directory))
  {
    foreach ((array) scandir($directory) as $filename)
    {
      if (!str_ends_with($filename, '.tar.gz'))
      {
        continue;
      }

      $basename = basename(
        $filename
      );

      $time = preg_replace(
        '/^([\d]+)\.tar\.gz$/',
        '$1',
        $basename
      );

      $snaps[_('Local')][] = (object)
      [
        'source' => 'local',
        'id'     => $document->getId(),
        'name'   => $basename,
        'time'   => $time,
        'size'   => filesize(
          sprintf(
            '%s/%s',
            $directory,
            $filename
          )
        ),
      ];
    }
  }
}

/// Remote snaps
foreach ($config->snap->storage->remote->ftp as $i => $ftp)
{
  // Resource enabled
  if (!$ftp->enabled)
  {
      continue;
  }

  $remote = new \Yggverse\Ftp\Client();

  $connection = $remote->connect(
    $ftp->connection->host,
    $ftp->connection->port,
    $ftp->connection->username,
    $ftp->connection->password,
    $ftp->connection->directory,
    $ftp->connection->timeout,
    $ftp->connection->passive
  );

  // Remote host connected
  if ($connection) {

    foreach ((array) $remote->nlist($filepath) as $filename)
    {
      if (!str_ends_with($filename, '.tar.gz'))
      {
        continue;
      }

      $basename = basename(
        $filename
      );

      $time = preg_replace(
        '/^([\d]+)\.tar\.gz$/',
        '$1',
        $basename
      );

      $snaps[sprintf(_('Server #%s'), $i + 1)][] = (object)
      [
        'source' => $i,
        'id'     => $document->getId(),
        'name'   => $basename,
        'time'   => $time,
        'size'   => $remote->size($filename),
      ];
    }

    $remote->close();
  }
}

// Process index request
if ($config->webui->index->enabled)
{
  session_start();

  if (isset($_POST['captcha']) && $_POST['captcha'] == $_SESSION['captcha'])
  {
    $index->updateDocument(
      [
        'index' => time()
      ],
      $document->getId()
    );

    header(
      sprintf(
        'Location: explore.php?i=%d',
        $document->getId()
      )
    );
  }

  $captcha = new \Gregwar\Captcha\CaptchaBuilder();
  $captcha->setBackgroundColor(46, 52, 54);
  $captcha->build();

  $_SESSION['captcha'] = $captcha->getPhrase();
}

?>

<!DOCTYPE html>
<html lang="<?php echo _('en-US'); ?>">
  <head>
  <title><?php echo _('Yo! explore') ?></title>
    <meta charset="utf-8" />
    <style>

      * {
        border: 0;
        margin: 0;
        padding: 0;
        font-family: Sans-serif;
        color: #ccc;
      }

      body {
        background-color: #2e3436;
        word-break: break-word;
      }

      header {
        background-color: #34393b;
        position: fixed;
        top: 0;
        left: 0;
        right: 0;
        z-index: 2;
      }

      main {
        margin-top: 80px;
        margin-bottom: 76px;
        padding: 0 20px;
      }

      main > div {
        max-width: 640px;
        margin: 0 auto;
        padding: 8px 0;
        border-top: 1px #000 dashed;
        font-size: 14px;
      }

      main > div > div {
        margin: 8px 0;
        font-size: 13px;
      }

      h1 {
        position: fixed;
        top: 2px;
        left: 24px;
      }

      h1 > a,
      h1 > a:visited,
      h1 > a:active,
      h1 > a:hover {
        color: #fff;
        font-weight: normal;
        font-size: 22px;
        text-decoration: none;
      }

      h2 {
        display: block;
        font-size: 15px;
        font-weight: normal;
        margin: 4px 0;
        color: #fff;
      }

      h3 {
        display: block;
        font-size: 13px;
        margin: 4px 0;
      }

      pre {
        border-radius: 4px;
        border: 1px #000 dashed;
        font-size: 13px;
        margin: 8px 0;
        max-height: 180px;
        overflow: auto;
        padding: 8px;
        position: relative;
        white-space: pre-wrap;
      }

      form {
        display: block;
        max-width: 678px;
        margin: 0 auto;
        text-align: center;
      }

      fieldset {
        width: 150px;
      }

      input[type="text"],
      input[type="text"]:-webkit-autofill,
      input[type="text"]:-webkit-autofill:focus {
        transition: background-color 0s 600000s, color 0s 600000s; /* chrome */
        width: 100%;
        margin: 12px 0;
        padding: 6px 0;
        border-radius: 32px;
        background-color: #000;
        color: #fff;
        font-size: 15px;
        text-align: center;
      }

      input[type="text"]:hover {
        background-color: #111
      }

      input[type="text"]:focus {
        outline: none;
        background-color: #111
      }

      input[type="text"]:focus::placeholder {
        color: #090808
      }

      label {
        font-size: 14px;
        position: absolute;
        right: 80px;
        top: 18px;
      }

      label > input {
        width: auto;
        margin: 0 4px;
      }

      button {
        padding: 6px 12px;
        border-radius: 4px;
        cursor: pointer;
        background-color: #3394fb;
        color: #fff;
        font-size: 14px;
      }

      button {
        background-color: #4b9df4;
        height: 32px;
        vertical-align: top;
      }

      header button {
        position: fixed;
        top: 12px;
        right: 24px;
      }

      a, a:visited, a:active {
        color: #9ba2ac;
        font-size: 12px;
      }

      a:hover {
        color: #54a3f7;
      }

      ul {
        margin: 0;
        padding: 0;
      }

      ul > li {
        margin-left: 16px;
        font-size: 13px;
        padding: 4px 0;
      }

      .text-warning {
        color: #db6161;
      }

    </style>
  </head>
  <body>
    <header>
      <form name="search" method="GET" action="search.php">
        <h1><a href="./"><?php echo _('Yo!') ?></a></h1>
        <input type="text" name="q" placeholder="<?php echo $placeholder ?>" value="" />
        <?php if ($config->webui->search->extended->enabled) { ?>
          <label for="e">
            <input type="checkbox" name="e" id="e" value="true" />
            <?php echo _('Extended') ?>
          </label>
        <?php } ?>
        <button type="submit">
            <sub>
              <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="white" class="bi bi-search" viewBox="0 0 16 16">
                <path d="M11.742 10.344a6.5 6.5 0 1 0-1.397 1.398h-.001c.03.04.062.078.098.115l3.85 3.85a1 1 0 0 0 1.415-1.414l-3.85-3.85a1.007 1.007 0 0 0-.115-.1zM12 6.5a5.5 5.5 0 1 1-11 0 5.5 5.5 0 0 1 11 0"/>
              </svg>
            </sub>
        </button>
      </form>
    </header>
    <main>
      <?php if ($document) { ?>
        <div>
          <?php if (empty($document->time)) { ?>
            <div>
              <?php echo _('Document pending for crawler in queue') ?>
            </div>
          <?php } else { ?>
            <?php if (!empty($document->title)) { ?>
              <h2>
                <?php echo htmlentities($document->title) ?>
              </h2>
            <?php } ?>
            <?php if (!empty($document->description)) { ?>
              <div>
                <?php echo htmlentities($document->description) ?>
              </div>
            <?php } ?>
            <?php if (!empty($document->keywords)) { ?>
              <div>
                <?php echo htmlentities($document->keywords) ?>
              </div>
            <?php } ?>
          <?php } ?>
            <div>
              <a href="<?php echo $document->url ?>"><?php echo htmlentities(urldecode($document->url)) ?></a>
            </div>
        </div>
        <div>
          <div>
            <img src="<?php echo $icon ?>" title="<?php echo $hostname ?>" alt="identicon" />
          </div>
          <?php if (!empty($document->code)) { ?>
            <h3><?php echo _('HTTP') ?></h3>
            <?php if ($document->code == 200) { ?>
              <div>
                <?php echo $document->code ?>
              </div>
            <?php } else { ?>
              <div class="text-warning">
                <?php echo $document->code ?>
              </div>
            <?php } ?>
          <?php } ?>
          <?php if (!empty($document->mime)) { ?>
            <h3><?php echo _('MIME') ?></h3>
            <div><?php echo $document->mime ?></div>
          <?php } ?>
          <?php if (!empty($document->size)) { ?>
            <h3><?php echo _('Size') ?></h3>
            <div><?php echo $document->size ?></div>
          <?php } ?>
          <?php if (!empty($document->time)) { ?>
            <h3><?php echo _('Time') ?></h3>
            <div><?php echo date('c', $document->time) ?></div>
          <?php } ?>
          <?php if ($snaps) { ?>
            <h3><?php echo _('Snaps') ?></h3>
            <ul>
              <?php foreach ($snaps as $source => $snap) { ?>
                <li>
                  <?php echo $source ?>
                  <ul>
                    <?php foreach ($snap as $file) { ?>
                      <li>
                        <a rel="nofollow" href="api.php?action=snap&method=download&source=<?php echo $file->source ?>&id=<?php echo $file->id ?>&time=<?php echo $file->time ?>">
                          <?php echo sprintf('%s (tar.gz / %s bytes)', date('c', $file->time), number_format($file->size)) ?>
                        </a>
                      </li>
                    <?php } ?>
                  </ul>
                </li>
              <?php } ?>
            </ul>
          <?php } ?>
          <?php if (!empty($document->body)) { ?>
            <h3><?php echo _('Cache') ?></h3>
            <pre><?php echo htmlentities($document->body) ?></pre>
          <?php } ?>
          <?php if ($config->webui->index->enabled) { ?>
            <h3><?php echo _('Index') ?></h3>
            <div>
              <?php if ($document->get('index')) { ?>
                <?php echo sprintf(_('Request sent at %s'), date('c', $document->get('index'))) ?>
              <?php } else { ?>
                <img src="<?php echo $captcha->inline(100) ?>" alt="captcha" />
                <form name="index" method="POST" action="explore.php?i=<?php echo $document->getId() ?>">
                  <fieldset>
                    <input type="text"
                           name="captcha"
                           value=""
                           placeholder="<?php echo _('Code on picture'); ?>"
                           autocomplete="off" />
                    <button type="submit">
                      <?php echo _('Request') ?>
                    </button>
                    <button type="submit">
                      <sub>
                        <svg xmlns="http://www.w3.org/2000/svg" width="14" height="14" fill="white" viewBox="0 0 16 16">
                          <path d="M11.534 7h3.932a.25.25 0 0 1 .192.41l-1.966 2.36a.25.25 0 0 1-.384 0l-1.966-2.36a.25.25 0 0 1 .192-.41m-11 2h3.932a.25.25 0 0 0 .192-.41L2.692 6.23a.25.25 0 0 0-.384 0L.342 8.59A.25.25 0 0 0 .534 9"/>
                          <path fill-rule="evenodd" d="M8 3c-1.552 0-2.94.707-3.857 1.818a.5.5 0 1 1-.771-.636A6.002 6.002 0 0 1 13.917 7H12.9A5 5 0 0 0 8 3M3.1 9a5.002 5.002 0 0 0 8.757 2.182.5.5 0 1 1 .771.636A6.002 6.002 0 0 1 2.083 9z"/>
                        </svg>
                      </sub>
                    </button>
                  </fieldset>
                </form>
              <?php } ?>
            </div>
          <?php } ?>
        </div>
      <?php } else { ?>
        <div>
          <?php echo _('Index not found') ?>
        </div>
      <?php } ?>
    </main>
  </body>
</html>