<?php
require "/home/hpr/php/include.php";
$pos = strpos($_SERVER['REQUEST_URI'], '?');
if ( ! $pos === false) {
  header("Status: 412 Precondition Failed");
  include '412.shtml';
  file_put_contents($naughtyfile, getUserIP(), FILE_APPEND | LOCK_EX );
  exit;
}

$body="give";
//$body="index_full";
include 'header.html'; 

// --------------------------------------------
// Clean up stale reservations

$ip = $_SERVER["REMOTE_ADDR"];

# Remove any stale requests. 
# This should be enough to deter attackers while been short enough to allow real hosts to request a show.
$query_delete_old = "DELETE
FROM
  reservations
WHERE
  reservations.timestamp + INTERVAL 1 HOUR <= UTC_TIMESTAMP()
  AND reservations.status = 'REQUEST_UNVERIFIED'";
$result_delete_old = @mysqli_query($connection, $query_delete_old);
logextra( "Deleting requests older than 1 hour" . $result_delete_old );

# Remove stale requests from this IP Address after 15 minutes. 
# This should be enough to deter attackers while been short enough to allow real hosts to request a show.
$query_delete = "DELETE FROM reservations WHERE reservations.ip = '$ip' AND reservations.timestamp + INTERVAL 15 MINUTE <= UTC_TIMESTAMP() AND reservations.status = 'REQUEST_UNVERIFIED'";
$result_delete = @mysqli_query($connection, $query_delete);
logextra( "Remove stale requests from this \"${ip}\" IP Address after 15 minutes. " . $result_delete_old );


// --------------------------------------------
// Get first free slot

$query = mysqli_query($connection, "
SELECT  id + 1 FROM eps mo
WHERE   NOT EXISTS
        (
        SELECT  NULL
        FROM    eps mi 
        WHERE   mi.id = mo.id + 1
        )
ORDER BY
        id
LIMIT 1");
$next_show_num_array = mysqli_fetch_row($query);
$next_show_num = $next_show_num_array[0];

print "<!-- next_show_num is $next_show_num -->\n";

// --------------------------------------------
// Get latest published show

$query = mysqli_query($connection, "SELECT max(date), max(id) from eps WHERE eps.date <= UTC_DATE()");
$current_episode_array = mysqli_fetch_row($query);
$current_episode_date = $current_episode_array[0];
$current_episode_number = $current_episode_array[1];

print "<!-- current_episode_date is $current_episode_date -->\n";
print "<!-- current_episode_number is $current_episode_number -->\n";

// --------------------------------------------
// Get highest scheduled or reserved show

$query = mysqli_query($connection, "SELECT MAX(id) FROM eps as maxid;");
$max_episode_array = mysqli_fetch_row($query);
$max_episode_number = $max_episode_array[0];
print "<!-- max_episode_number is $max_episode_number -->\n";

// --------------------------------------------
// Get the number of shows in the reserve queue.

$query = mysqli_query($connection, "SELECT COUNT(*) as count_reserve_queue FROM reservations WHERE status = 'RESERVE_SHOW_SUBMITTED' AND ip = '127.0.0.1';");
$response_array = mysqli_fetch_row($query);
$count_reserve_queue = $response_array[0];
print "<!-- count_reserve_queue is $count_reserve_queue -->\n";

// --------------------------------------------
// Get the number of shows in the reserve queue yet to be processed.

$query = mysqli_query($connection, "SELECT COUNT(*) as count_reserve_queue_unprocessed FROM reservations WHERE status = 'RESERVE_SHOW_SUBMITTED' AND ip != '127.0.0.1';");
$response_array = mysqli_fetch_row($query);
$count_reserve_queue_unprocessed = $response_array[0];
print "<!-- count_reserve_queue_unprocessed is $count_reserve_queue_unprocessed -->\n";

// --------------------------------------------
// Populate array with future shows and reservations
$show_array = array ();

// REQUEST_UNVERIFIED → SHOW_SUBMITTED → METADATA_PROCESSED → SHOW_POSTED → MEDIA_TRANSCODED → UPLOADED_TO_IA → UPLOADED_TO_RSYNC_NET
$ep_retrieve = "SELECT hosts.host, eps.id, eps.title, eps.date FROM eps, hosts WHERE eps.valid=1 AND eps.hostid = hosts.hostid AND eps.date >= '$current_episode_date' ORDER BY date DESC";

$ep_retrieve = "SELECT
  hosts.host,
  eps.id,
  eps.title,
  eps.date,
  COUNT( assets.extension) AS numfiles
FROM
  eps
  LEFT JOIN hosts ON eps.hostid = hosts.hostid
  LEFT JOIN assets ON eps.id = assets.episode_id
WHERE
  eps.valid = 1
  AND eps.date >= '$current_episode_date'
GROUP BY eps.id;";

if ($result = mysqli_query($connection, $ep_retrieve)) {
  while ($row = mysqli_fetch_array($result)) {
    $id = $row['id'];
    $date = $row['date'];
    $title = $row['title'];
    $host = $row['host'];
    $numfiles = $row['numfiles'];
    if( isset($numfiles) and $numfiles >= 3 ) {
      $status = "Finished";
    }
    else {
      $status = "Reserved";
    }
    $show_array[$id]  = array ( "date" => date('Y-m-d', strtotime($date) ), 
                                "title" => $title,
                                "host" => $host,
                                "status" => $status
                              );
  } 
}
// REQUEST_UNVERIFIED → SHOW_SUBMITTED → METADATA_PROCESSED → SHOW_POSTED → MEDIA_TRANSCODED → UPLOADED_TO_IA → UPLOADED_TO_RSYNC_NET

// Populate array with currently processing shows EMAIL_LINK_CLICKED
$ep_retrieve = "
SELECT
  reservations.ep_num,
  reservations.ep_date,
  reservations.status
FROM
  reservations
WHERE
  reservations.verified = 1
  AND reservations.ep_date >= '$current_episode_date'
ORDER BY
  reservations.ep_date DESC";

if ($result = mysqli_query($connection, $ep_retrieve)) {
  while ($row = mysqli_fetch_array($result)) {
    $id = $row['ep_num'];
    $date = $row['ep_date'];
    $status = $row['status'];
    $show_array[$id]  = array ( "date" => date('Y-m-d', strtotime($date) ), 
                                "title" => $status,
                                "host" => "Unverified",
                                "status" => "Processing"
                              );
  }
}

// Populate array with temporary reservations.
$ep_retrieve = "SELECT r.ep_num, r.ep_date, r.timestamp + INTERVAL 1 HOUR - UTC_TIMESTAMP() AS seconds_to_expiration FROM reservations r
WHERE r.timestamp + INTERVAL 1 HOUR > UTC_TIMESTAMP() AND r.verified =0 AND r.ep_date >= '$current_episode_date' ORDER BY r.ep_date DESC";

if ($result = mysqli_query($connection, $ep_retrieve)) {
  while ($row = mysqli_fetch_array($result)) {
    $id = $row['ep_num'];
    $date = $row['ep_date'];
    $seconds_to_expiration = $row['seconds_to_expiration'];
    $minutes = floor($seconds_to_expiration / 60) + 1;
    $show_array[$id]  = array ( "date" => date('Y-m-d', strtotime($date) ), 
                                "title" => " Available again in $minutes minutes",
                                "host" => "Unverified",
                                "status" => "Locked"
                              );
  }
}

$ep_retrieve = "SELECT
  hosts.host,
  eps.id,
  eps.title,
  eps.date 
FROM
  eps,
  hosts,
  assets
WHERE
  eps.valid = 0
  AND eps.hostid = hosts.hostid
  AND eps.id = assets.episode_id
  AND eps.date >= '$current_episode_date'
ORDER BY
  date DESC";
if ($result = mysqli_query($connection, $ep_retrieve)) {
  while ($row = mysqli_fetch_array($result)) {
    $id = $row['id'];
    $date = $row['date'];
    $title = $row['title'];
    $host = $row['host'];
    $show_array[$id]  = array ( "date" => date('Y-m-d', strtotime($date) ), 
                                "title" => $title,
                                "host" => $host,
                                "status" => "Waiting for media"
                              );
  } 
}

$ep_retrieve = "SELECT
  hosts.host,
  eps.id,
  eps.title,
  eps.date 
FROM
  eps,
  hosts,
  assets
WHERE
  eps.valid = 1
  AND eps.hostid = hosts.hostid
  AND eps.id = assets.episode_id
  AND assets.extension = 'ogg'
  AND eps.date >= '$current_episode_date'
ORDER BY
  date DESC";
if ($result = mysqli_query($connection, $ep_retrieve)) {
  while ($row = mysqli_fetch_array($result)) {
    $id = $row['id'];
    $date = $row['date'];
    $title = $row['title'];
    $host = $row['host'];
    $show_array[$id]  = array ( "date" => date('Y-m-d', strtotime($date) ), 
                                "title" => $title,
                                "host" => $host,
                                "status" => "Finished"
                              );
  } 
}


// --------------------------------------------
// Calculate the time to the next show

# aria-label=""

$next_show_date = date('Y-m-d', strtotime($show_array[$next_show_num - 1 ]["date"] . ' + 1 weekday'));
$days_to_wait = floor((strtotime($next_show_date) - strtotime(gmdate('Y-m-d')))/(60*60*24));

?>
<main id="maincontent">

<h1>Upload Your Show</h1>

<p>
The HPR Schedule is entirely community driven and we recommend that <strong>you</strong> decide when your show will be released. 
</p>

<p>
There are only <strong><?php echo "${days_to_wait}"; ?></strong> days to wait until next free slot. Please consider <a aria-label="Help on Recording a podcast" href="<?php echo "${baseurl}about.html#recording_a_podcast"; ?>">recording</a> a show for us.
</p>
<ol>
<li>Review the updated <em><a aria-label="Learn the Stuff you need to know" href="<?php echo "${baseurl}about.html#agreement"; ?>">Stuff you need to know</a></em> page.</li>
<li>Select a date, or post to the reserve queue.</li>
<li>Click the link in the confirmation email</li>
<li>Then <a aria-label="Help on Adding an episode" href="<?php echo "${baseurl}about.html#adding_an_episode"; ?>">fill in a form</a>.</li>
</ol>

<h2 id="reserve_queue">Add to the Reserve Queue ?</h2>

<p>
<a aria-label="Post to the reserve queue" href="<?php echo "${hubBaseurl}"; ?>request.php?id=9999">Post your show to the <strong>reserve queue</strong></a> if you don't care when it will be released. <small><a aria-label="Help on the reserve queue" href="<?php echo "${baseurl}about.html#reserve_queue"; ?>">&#9432;</a></small>
</p>
  
<h2 id="current_schedule">Select a date in the current schedule ?</h2>

<p>
<strong>Schedule</strong> the release</a> day your show will be aired. <small><a aria-label="Help on the scheduling guidelines" href="<?php echo "${baseurl}about.html#scheduling_guidelines"; ?>">&#9432;</a></small>
</p>

<h3>Next Two Months <small><a aria-label="Help on the HPR processing workflow" href="<?php echo "${baseurl}about.html#workflow"; ?>">&#9432;</a></small></h3>


<?php
$sizeof_show_array = sizeof($show_array);
$this_episode_date = date('D Y-m-d', strtotime($current_episode_date));
$week_number = date('W', strtotime($this_episode_date));
for ( $slot = $current_episode_number; $slot < ( $current_episode_number + 60 ); $slot++ ) {
  if ( !empty( $show_array[$slot] ) ) {
    if ( $show_array[$slot]["status"] === "Finished" ) {
      # https://hackerpublicradio.org/eps/hpr3879/index.html
      # ${baseurl}/eps/hpr${slot}/index.html
      echo "<span style=\"font-family:monospace;\">" . date('D Y-m-d', strtotime($show_array[$slot]["date"]))  . ": <a aria-label=\"Go directly to the show hpr${slot}\" href=\"${baseurl}eps/hpr${slot}/index.html\">hpr${slot}</a></span> <strong>" . $show_array[$slot]["title"] . "</strong> by <em>" . $show_array[$slot]["host"] . "</em><br />\n";
    }
    else {
      echo "<span style=\"font-family:monospace;\">${this_episode_date}: hpr${slot}</span> <strong>". $show_array[$slot]["status"]. ":</strong> <em>" . $show_array[$slot]["title"] . "</em>.<br />\n";
    }
    $sizeof_show_array--;
  }
  elseif ( empty( $show_array[$slot] ) ) {
    echo "<span style=\"font-family:monospace;\">${this_episode_date}: <a aria-label=\"Upload to the slot hpr${slot}\" href=\"${hubBaseurl}/request.php?id=${slot}\">hpr${slot}</span> is available - upload now</a>.<br />\n";
  }
  elseif ( $show_array[$slot]["valid"] == 0 ) {
    echo "<span style=\"font-family:monospace;\">${this_episode_date}: hpr${slot}</span> <strong>Unavailable</strong>.<br />\n";
  }
  $this_episode_date = date('D Y-m-d', strtotime($this_episode_date . ' + 1 weekday'));
  $new_week_number = date('W', strtotime($this_episode_date));
  if ( $week_number != $new_week_number ) {
     $week_number = $new_week_number;
     echo "<span style=\"font-family:monospace;\">----------------- Week ${week_number} -----------------<br /></span>\n";
  }
}
?>

<h3 id="also_scheduled">Also Scheduled</h3>
<?php
$slot--;
while ( $slot <= $max_episode_number) {
// print "<!-- slot $slot, sizeof_show_array $sizeof_show_array, sizeof_reservation_array $sizeof_reservation_array, max_episode_number $max_episode_number -->\n" ;
  if ( !empty( $show_array[$slot] ) ) {
    if ( $show_array[$slot]["status"] === "Finished" ) {
      echo "<span style=\"font-family:monospace;\">" . date('D Y-m-d', strtotime($show_array[$slot]["date"])) . ": <a aria-label=\"Go directly to the show hpr${slot}\" href=\"${baseurl}eps/hpr${slot}/index.html\">hpr${slot}</a></span> <strong>" . $show_array[$slot]["title"] . "</strong> by <em>" . $show_array[$slot]["host"] . "</em><br />\n";
    }
    else {
      echo "<span style=\"font-family:monospace;\">" . date('D Y-m-d', strtotime($show_array[$slot]["date"]))  . ": hpr${slot}</span> <strong>". $show_array[$slot]["status"]. ":</strong> <em>" . $show_array[$slot]["title"] . "</em>.<br />\n";
    }

    $sizeof_show_array--;
  }
  $slot++;
}
?>

<h3 id="reserve_queue_overview">Reserve Queue Overview</h3>
<pre>
<?php
include 'reserve.txt';
?>
</pre>

<h3 id="pick_other_dates">Pick other dates</h3>
<p>
If you wish to pick an available slot in the next 12 months then go directly to the <a aria-label="Go to the request page" href="<?php echo "${hubBaseurl}"; ?>request.php">request page</a>. 
</p>

<h3 id="workflow">Workflow</h3>
<p>
The HPR statistics are regenerated every 15 minutes and are available in <a aria-label="Go to the stats json page" href="<?php echo "${hubBaseurl}"; ?>stats.json">json format</a>. Note the format is liable to change without notice.</p>

</main>

<?php
include 'footer.html'; 
?>