<?php
require_once(WWW_DIR . "/lib/framework/db.php");
require_once(WWW_DIR . "/lib/category.php");
require_once(WWW_DIR . "/lib/releases.php");
require_once(WWW_DIR . "/lib/releaseimage.php");
require_once(WWW_DIR . "/lib/nzb.php");
require_once(WWW_DIR . "/lib/rarinfo/par2info.php");
require_once(WWW_DIR . "/lib/rarinfo/archiveinfo.php");
require_once(WWW_DIR . "/lib/rarinfo/zipinfo.php");
require_once(WWW_DIR . "/lib/nfo.php");
require_once(WWW_DIR . "/lib/site.php");
require_once(WWW_DIR . "/lib/util.php");
require_once(WWW_DIR . "/lib/groups.php");
require_once(WWW_DIR . '/lib/nntp.php');
require_once(WWW_DIR . "/lib/postprocess.php");
require_once(WWW_DIR . "/lib/Tmux.php");
require_once(WWW_DIR . "/lib/ColorCLI.php");
require_once(WWW_DIR . "/lib/ConsoleTools.php");
require_once("nzbcontents.php");
require_once("namefixer.php");
require_once("TraktTv.php");
require_once("Enzebe.php");


//*addedd from nZEDb for testing

class Functions

{
	/**
	 * How many headers do we download per loop?
	 *
	 * @var int
	 */
	public
		$messagebuffer;
	/**
	 * Should we use part repair?
	 *
	 * @var bool
	 */
	private
		$DoPartRepair;
	/**
	 * How many days to go back on a new group?
	 *
	 * @var bool
	 */
	private
		$NewGroupScanByDays;

	function __construct($echooutput = true)
	{
		$s = new Sites();
		$this->site = $s->get();
		$t = new Tmux();
		$this->tmux = $t->get();
		$this->p = new Postprocess();
		$this->echooutput = $echooutput;
		$this->c = new ColorCLI();
		$this->db = new DB();
		$this->groups = new Groups();
		$this->m = new Movie();
		$this->consoleTools = new ConsoleTools();
		$this->tmpPath = $this->site->tmpunrarpath;
		$this->sleeptime = (!empty($this->tmux->amazonsleep)) ? $this->tmux->amazonsleep : 1000;
		$this->DEBUG_ECHO = ($this->tmux->debuginfo == '0') ? false : true;
		if (defined('DEBUG_ECHO') && DEBUG_ECHO == true) {
			$this->DEBUG_ECHO = true;
		}
		$this->debug = ($this->tmux->debuginfo == "0") ? false : true;

		$this->compressedHeaders = ($this->site->compressedheaders == '1') ? true : false;
		$this->safepartrepair = (!empty($this->tmux->safepartrepair)) ? $this->tmux->safepartrepair : 0;
		$this->safebdate = (!empty($this->tmux->safebackfilldate)) ? $this->tmux->safebackfilldate : '2012 - 06 - 24';
		$this->DoPartRepair = ($this->tmux->partrepair == '0') ? false : true;
		$this->messagebuffer = (!empty($this->site->maxmssgs)) ? (int)$this->site->maxmssgs : 20000;
		$this->NewGroupScanByDays = ($this->site->newgroupscanmethod == '1') ? true : false;
		$this->NewGroupMsgsToScan = (!empty($this->site->newgroupmsgstoscan)) ? (int)$this->site->newgroupmsgstoscan : 50000;
		$this->NewGroupDaysToScan = (!empty($this->site->newgroupdaystoscan)) ? (int)$this->site->newgroupdaystoscan : 3;
		$this->partrepairlimit = (!empty($this->tmux->maxpartrepair)) ? (int)$this->tmux->maxpartrepair : 15000;
	}

	public
	function checkDate($date)
	{
		if (!empty($date) && $date != null) {
			$chk = explode(" ", $date);
			$chkd = explode("-", $chk[0]);
			if ($chkd[1] > 12) {
				$date = date('Y-m-d H:i:s', strtotime($chkd[1] . " " . $chkd[2] . " " . $chkd[0]));
			}

			return $date;
		}

		return null;
	}

	// Convert 2012-24-07 to 2012-07-24, there is probably a better way

	public
	function updateReleaseHasPreview($guid)
	{
		$this->db->queryExec(sprintf('UPDATE releases SET haspreview = 1 WHERE guid = %s', $this->db->escapeString($guid)));
	}

	public
	function debug($str)
	{
		if ($this->echooutput && $this->DEBUG_ECHO) {
			echo $this->c->debug($str);
		}
	}

	/**
	 * @param string $group
	 * @param int    $first
	 * @param int    $type
	 * @param object $nntp
	 *
	 * @return void
	 */
	function getFinal($group, $first, $type, $nntp)
	{
		if (!isset($nntp)) {
			exit($this->c->error("Not connected to usenet(backfill->getFinal).\n"));
		}

		$db = $this->db;
		$groups = new Groups();
		$groupArr = $groups->getByName($group);

		// Select group, here, only once
		$data = $nntp->selectGroup($groupArr['name']);
		if ($nntp->isError($data)) {
			$data = $nntp->dataError($nntp, $groupArr['name']);
			if ($nntp->isError($data)) {
				return;
			}
		}

		if ($type == 'Backfill') {
			$postsdate = $this->postdate($nntp, $first, false, $group, true, 'oldest');
		} else {
			$postsdate = $this->postdate($nntp, $first, false, $group, true, 'newest');
		}
		$postsdate = $this->db->from_unixtime($postsdate);

		if ($type == 'Backfill') {
			$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s, first_record = %s, last_updated = NOW() WHERE ID = %d', $postsdate, $db->escapeString($first), $groupArr['ID']));
		} else {
			$db->queryExec(sprintf('UPDATE groups SET last_record_postdate = %s, last_record = %s, last_updated = NOW() WHERE ID = %d', $postsdate, $db->escapeString($first), $groupArr['ID']));
		}

		$this->doecho(
			$type .
			' Safe Threaded for ' .
			$group .
			" completed." .
			$this->c->rsetColor()
		);
	}

	/**
	 * Returns a single timestamp from a local article number.
	 * If the article is missing, you can pass $old as true to return false (then use the last known date).
	 *
	 * @param object $nntp
	 * @param int    $post
	 * @param bool   $debug
	 * @param string $group
	 * @param bool   $old
	 * @param string $type
	 *
	 * @return bool|int
	 */
	public
	function postdate($nntp, $post, $debug = true, $group, $old = false, $type)
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->postdate).";


			$this->c->error($dmessage);

			return false;
		}

		$db = $this->db;
		$keeppost = $post;

		$attempts = 0;
		$success = $record = false;
		do {
			$msgs = $nntp->getOverview($post . "-" . $post, true, false);
			$attempts++;
			if (!$nntp->isError($msgs)) {
				// Set table names
				$groups = new Groups();
				$groupID = $this->groups->getIDByName($group);
				$groupa = array();
				$groupa['bname'] = 'binaries';
				$groupa['pname'] = 'parts';
				if ((!isset($msgs[0]['Date']) || $msgs[0]['Date'] == '' || is_null($msgs[0]['Date'])) && $attempts == 0) {
					$old_post = $post;
					if ($type == 'newest') {
						$res = $db->queryOneRow('SELECT p.number AS number FROM' . $groupa['bname'] . ' b, ' . $groupa['pname'] . ' p WHERE b.ID = b.releaseID AND b.ID = p.binaryID AND b.groupID = ' . $groupID . ' ORDER BY p.number DESC LIMIT 1');
						if (isset($res['number']) && is_numeric($res['number'])) {
							$post = $res['number'];
							$dmessage =
								"Unable to fetch article $old_post from " .
								str_replace('alt.binaries', 'a.b', $group) .
								". Retrying with newest article, from parts table, [$post] from ${groupa['pname']}";

							$this->c->info($dmessage);

						}
					} else {
						$res = $db->queryOneRow('SELECT p.number FROM ' . $groupa['bname'] . ' b, ' . $groupa['pname'] . ' p WHERE b.ID = p.binaryID AND b.groupID = ' . $groupID . ' ORDER BY p.number ASC LIMIT 1');
						if (isset($res['number']) && is_numeric($res['number'])) {
							$post = $res['number'];
							$dmessage =
								"Unable to fetch article $old_post from " .
								str_replace('alt.binaries', 'a.b', $group) .
								". Retrying with oldest article, from parts table, [$post] from ${groupa['pname']}.";

							$this->c->info($dmessage);

						}
					}
					$success = false;
				}
				if ((!isset($msgs[0]['Date']) || $msgs[0]['Date'] == '' || is_null($msgs[0]['Date'])) && $attempts != 0) {
					if ($type == 'newest') {
						$res = $db->queryOneRow('SELECT date FROM ' . $groupa['bname'] . ' ORDER BY date DESC LIMIT 1');
						if (isset($res['date'])) {
							$date = $res['date'];
							$dmessage =
								"Unable to fetch article $post from " .
								str_replace('alt.binaries', 'a.b', $group) .
								". Using newest date from ${groupa['bname']}.";

							$this->c->info($dmessage);

							if (strlen($date) > 0) {
								$success = true;
							}
						}
					} else {
						$res = $db->queryOneRow('SELECT date FROM ' . $groupa['bname'] . ' ORDER BY date ASC LIMIT 1');
						if (isset($res['date'])) {
							$date = $res['date'];
							$dmessage =
								"Unable to fetch article $post from " .
								str_replace('alt.binaries', 'a.b', $group) .
								". Using oldest date from ${groupa['bname']}.";

							$this->c->info($dmessage);

							if (strlen($date) > 0) {
								$success = true;
							}
						}
					}
				}

				if (isset($msgs[0]['Date']) && $msgs[0]['Date'] != '' && $success === false) {
					$date = $msgs[0]['Date'];
					if (strlen($date) > 0) {
						$success = true;
					}
				}

				if ($attempts > 0) {
					$this->c->debug('Retried ' . $attempts . " time(s).");
				}
			}
		} while ($attempts <= 20 && $success === false);

		if ($success === false && $old === true) {
			if ($type == 'oldest') {
				$res = $db->queryOneRow(sprintf("SELECT first_record_postdate from groups where name = '%s'", $group));
				if (array_key_exists('first_record_postdate', $res)) {
					$dmessage =
						'Unable to fetch article ' .
						$keeppost . ' from ' .
						str_replace('alt.binaries', 'a.b', $group) .
						'. Using current first_record_postdate[' .
						$res['first_record_postdate'] .
						"], instead.";

					$this->c->info($dmessage);

					return strtotime($res['first_record_postdate']);
				} else {
					return false;
				}
			} else {
				$res = $db->queryOneRow(sprintf("SELECT last_record_postdate from groups where name = '%s'", $group));
				if (array_key_exists('last_record_postdate', $res)) {
					$dmessage =
						'Unable to fetch article ' .
						$keeppost . ' from ' .
						str_replace('alt.binaries', 'a.b', $group) .
						'. Using current last_record_postdate[' .
						$res['last_record_postdate'] .
						"], instead.";

					$this->c->info($dmessage);

					return strtotime($res['last_record_postdate']);
				} else {
					return false;
				}
			}
		} else if ($success === false) {
			return false;
		}


		$date = strtotime($date);

		return $date;
	}

	function doecho($str)
	{
		if ($this->echooutput)
			echo $this->c->header($str);
	}

	/**
	 * @param string $group
	 * @param int    $first
	 * @param int    $last
	 * @param int    $threads
	 * @param object $nntp
	 *
	 * @return void
	 */
	public
	function getRange($group, $first, $last, $threads, $nntp)
	{
		if (!isset($nntp)) {
			exit($this->c->error("Not connected to usenet(backfill->getRange).\n"));
		}

		$groups = new Groups();
		$this->startGroup = microtime(true);
		$binaries = new Binaries();
		$groupArr = $groups->getByName($group);
		$process = $this->safepartrepair ? 'update' : 'backfill';

		$this->c->header(
			'Processing ' .
			str_replace('alt.binaries', 'a.b', $groupArr['name']) .
			(($this->compressedHeaders) ? ' Using Compression' : ' Not Using Compression') .
			' ==> T-' .
			$threads .
			' ==> ' .
			number_format($first) .
			' to ' .
			number_format($last) .
			$this->c->rsetColor()
		);
		$this->startLoop = microtime(true);

		// Select group, here, only once
		$data = $nntp->selectGroup($groupArr['name']);
		if ($nntp->isError($data)) {
			$data = $nntp->dataError($nntp, $groupArr['name']);
			if ($nntp->isError($data)) {
				return;
			}
		}

		$binaries->scan($nntp, $groupArr, $last, $first, $process);
	}

	/**
	 * Backfill all the groups up to user specified time/date.
	 *
	 * @param object $nntp
	 * @param string $groupName
	 *
	 * @return void
	 */
	public
	function backfillAllGroups($nntp, $groupName = '')
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->backfillAllGroups).\n";
			exit($this->c->error($dmessage));
		}

		$groups = new Groups();

		if ($groupName != '') {
			$grp = $groups->getByName($groupName);
			if ($grp) {
				$res = array($grp);
			}
		} else {
			$res = $this->getActiveBackfill();
		}


		if ($res) {
			$counter = 1;
			$db = $this->db;
			$binaries = new Binaries();
			foreach ($res as $groupArr) {
				if ($groupName === '') {
					$dmessage = "Starting group " . $counter . ' of ' . sizeof($res);

					$this->c->header . $dmessage . $this->c->rsetColor();
				}
				$this->backfillGroup($nntp, $db, $binaries, $groupArr, sizeof($res) - $counter);
				$counter++;
			}
		} else {
			$dmessage = "No groups specified. Ensure groups are added to newznab's database for updating.";
			$this->c->primary . $dmessage . $this->c->rsetColor();
		}
	}

	public
	function backfillGroup($nntp, $db, $binaries, $groupArr, $left)
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->backfillGroup).";
			exit($this->c->error($dmessage));
		}

		$this->startGroup = microtime(true);

		// Select group, here, only once
		$data = $nntp->selectGroup($groupArr['name']);
		if ($nntp->isError($data)) {
			$data = $nntp->dataError($nntp, $groupArr['name']);
			if ($nntp->isError($data)) {
				return;
			}
		}

		// Get targetpost based on days target.
		$targetpost = $this->daytopost($nntp, $groupArr['name'], $groupArr['backfill_target'], $data, true);
		if ($targetpost < 0) {
			$targetpost = round($data['first']);
		}

		if ($groupArr['first_record'] == 0 || $groupArr['backfill_target'] == 0) {
			$dmessage = "Group ${groupArr['name']} has invalid numbers. Have you run update on it? Have you set the backfill days amount?";

			$this->c->warning($dmessage);

			return;
		}

		// Check if we are grabbing further than the server has.
		if ($groupArr['first_record'] <= ($data['first'] + 50000)) {
			$dmessage = "We have hit the maximum we can backfill for " . str_replace('alt.binaries', 'a.b', $groupArr['name']) . ", skipping it.";


			$this->c->notice($dmessage);
			//$groups = new Groups();
			//$groups->disableForPost($groupArr['name']);
			return;
		}

		// If our estimate comes back with stuff we already have, finish.
		if ($targetpost >= $groupArr['first_record']) {
			$dmessage = "Nothing to do, we already have the target post.";

			$this->c->notice($dmessage);

			return;
		}

		$this->c->doecho(
			'Group ' .
			$data['group'] .
			': server has ' .
			number_format($data['first']) .
			' - ' .
			number_format($data['last']) .
			', or ~' .
			((int)
			((
					$this->postdate($nntp, $data['last'], false, $groupArr['name'], false, 'oldest') -
					$this->postdate($nntp, $data['first'], false, $groupArr['name'], false, 'oldest')) /
				86400
			)) .
			" days.\nLocal first = " .
			number_format($groupArr['first_record']) .
			' (' .
			((int)
			((
					date('U') -
					$this->postdate($nntp, $groupArr['first_record'], false, $groupArr['name'], false, 'oldest')) /
				86400
			)) .
			' days).  Backfill target of ' .
			$groupArr['backfill_target'] .
			' days is post ' .
			$targetpost, true
		);

		$done = false;
		// Set first and last, moving the window by maxxMssgs.
		$last = $groupArr['first_record'] - 1;
		// Set the initial "chunk".
		$first = $last - $this->messagebuffer + 1;

		// Just in case this is the last chunk we needed.
		if ($targetpost > $first) {
			$first = $targetpost;
		}

		// In case postdate doesn't get a date.
		if (is_null($groupArr['first_record_postdate']) || $groupArr['first_record_postdate'] == 'NULL') {
			$firstr_date = time();
		} else {
			$firstr_date = strtotime($groupArr['first_record_postdate']);
		}

		while ($done === false) {
			$this->startLoop = microtime(true);

			$this->c->header(
				'Getting ' .
				(number_format($last - $first + 1)) .
				" articles from " .
				str_replace('alt.binaries', 'a.b', $data['group']) .
				", " . $left .
				" group(s) left. (" .
				(number_format($first - $targetpost)) .
				" articles in queue)." .
				$this->c->rsetColor()
			);

			flush();
			$process = $this->safepartrepair ? 'update' : 'backfill';
			$binaries->scan($nntp, $groupArr, $first, $last, $process);
			$newdate = $this->postdate($nntp, $first, false, $groupArr['name'], true, 'oldest');

			if ($newdate !== false) {
				$firstr_date = $newdate;
			}

			$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s, first_record = %s, last_updated = NOW() WHERE ID = %d', $this->db->from_unixtime($firstr_date), $db->escapeString($first), $groupArr['ID']));
			if ($first == $targetpost) {
				$done = true;
			} else {
				// Keep going: set new last, new first, check for last chunk.
				$last = $first - 1;
				$first = $last - $this->messagebuffer + 1;
				if ($targetpost > $first) {
					$first = $targetpost;
				}
			}
		}
		// Set group's first postdate.
		$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s, last_updated = NOW() WHERE ID = %d', $this->db->from_unixtime($firstr_date), $groupArr['ID']));

		$timeGroup = number_format(microtime(true) - $this->startGroup, 2);

		$this->c->primary(
			'Group processed in ' .
			$timeGroup .
			" seconds." .
			$this->c->rsetColor()
		);

	}

	/**
	 * Returns article number based on # of days.
	 *
	 * @param object $nntp
	 * @param string $group
	 * @param int    $days
	 * @param array  $data
	 * @param bool   $debug
	 *
	 * @return string
	 */
	public
	function daytopost($nntp, $group, $days, $data, $debug = true)
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->daytopost).\n";
			exit($this->c->error($dmessage));
		}
		$pddebug = false;
		// Goal timestamp.
		$goaldate = date('U') - (86400 * $days);
		$totalnumberofarticles = $data['last'] - $data['first'];
		$upperbound = $data['last'];
		$lowerbound = $data['first'];

		if ($data['last'] == PHP_INT_MAX) {
			$dmessage = "Group data is coming back as php's max value. You should not see this since we use a patched Net_NNTP that fixes this bug.\n";
			exit($this->c->info($dmessage));
		}

		$firstDate = $this->postdate($nntp, $data['first'], $pddebug, $group, false, 'oldest');
		$lastDate = $this->postdate($nntp, $data['last'], $pddebug, $group, false, 'oldest');

		if ($goaldate < $firstDate) {
			$dmessage =
				"Backfill target of $days day(s) is older than the first article stored on your news server.\nStarting from the first available article (" .
				date('r', $firstDate) . ' or ' .
				$this->daysOld($firstDate) . " days).";

			$this->c->warning($dmessage);

			return $data['first'];
		} else if ($goaldate > $lastDate) {
			$dmessage =
				'Backfill target of ' .
				$days .
				" day(s) is newer than the last article stored on your news server.\nTo backfill this group you need to set Backfill Days to at least " .
				ceil($this->daysOld($lastDate) + 1) .
				' days (' .
				date('r', $lastDate - 86400) .
				").";

			$this->c->error($dmessage);

			return '';
		}


		$interval = floor(($upperbound - $lowerbound) * 0.5);
		$templowered = '';
		$dateofnextone = $lastDate;

		// Match on days not timestamp to speed things up.
		while ($this->daysOld($dateofnextone) < $days) {
			while (($tmpDate = $this->postdate($nntp, ($upperbound - $interval), $pddebug, $group, false, 'oldest')) > $goaldate) {
				$upperbound = $upperbound - $interval;
			}

			if (!$templowered) {
				$interval = ceil(($interval / 2));
			}
			$dateofnextone = $this->postdate($nntp, ($upperbound - 1), $pddebug, $group, false, 'oldest');
			while (!$dateofnextone) {
				$dateofnextone = $this->postdate($nntp, ($upperbound - 1), $pddebug, $group, false, 'oldest');
			}
		}

		$dmessage =
			'Determined to be article: ' .
			number_format($upperbound) .
			' which is ' .
			$this->daysOld($dateofnextone) .
			' days old (' .
			date('r', $dateofnextone) .
			')';


		$this->c->doecho($dmessage, true);

		return $upperbound;
	}

	/**
	 * Convert unix time to days ago.
	 *
	 * @param int $timestamp unix time
	 *
	 * @return float
	 */
	private
	function daysOld($timestamp)
	{
		return round((time() - (!is_numeric($timestamp) ? strtotime($timestamp) : $timestamp)) / 86400, 1);
	}

	/**
	 * Safe backfill using posts. Going back to a date specified by the user on the site settings.
	 * This does 1 group for x amount of parts until it reaches the date.
	 *
	 * @param object $nntp
	 * @param string $articles
	 *
	 * @return void
	 */
	public
	function safeBackfill($nntp, $articles = '')
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->safeBackfill).\n";
			exit($this->c->error($dmessage));
		}

		$db = $this->db;
		$groupname = $db->queryOneRow(sprintf('SELECT name FROM groups WHERE first_record_postdate BETWEEN %s AND NOW() AND backfill = 1 ORDER BY name ASC', $db->escapeString($this->safebdate)));

		if (!$groupname) {
			$dmessage =
				'No groups to backfill, they are all at the target date ' .
				$this->safebdate .
				", or you have not enabled them to be backfilled in the groups page.\n";
			exit($dmessage);
		} else {
			$this->backfillPostAllGroups($nntp, $groupname['name'], $articles, $type = '');
		}
	}

	/**
	 * Backfill groups using user specified article count.
	 *
	 * @param object $nntp
	 * @param string $groupName
	 * @param string $articles
	 * @param string $type
	 *
	 * @return void
	 */
	public
	function backfillPostAllGroups($nntp, $groupName = '', $articles = '', $type = '')
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->backfillPostAllGroups).\n";
			exit($this->c->error($dmessage));
		}

		$res = false;
		$groups = new Groups();
		if ($groupName != '') {
			$grp = $groups->getByName($groupName);
			if ($grp) {
				$res = array($grp);
			}
		} else {
			if ($type == 'normal') {
				$res = $this->getActiveBackfill();
			} else if ($type == 'date') {
				$res = $this->getActiveByDateBackfill();
			}
		}

		if ($res) {
			$counter = 1;
			$binaries = new Binaries();
			foreach ($res as $groupArr) {
				if ($groupName === '') {
					$dmessage = "\nStarting group " . $counter . ' of ' . sizeof($res);

					$this->c->header . $dmessage . $this->c->rsetColor();
				}
				$this->backfillPostGroup($nntp, $this->db, $binaries, $groupArr, sizeof($res) - $counter, $articles);
				$counter++;
			}
		} else {
			$dmessage = "No groups specified. Ensure groups are added to newznab's database for updating.";

			$this->c->warning($dmessage);
		}
	}

	/**
	 * @param object $nntp
	 * @param object $db
	 * @param object $binaries
	 * @param array  $groupArr
	 * @param int    $left
	 * @param string $articles
	 *
	 * @return void
	 */
	public
	function backfillPostGroup($nntp, $db, $binaries, $groupArr, $left, $articles = '')
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(backfill->backfillPostGroup).\n";
			exit($this->c->error($dmessage));
		}

		$this->startGroup = microtime(true);

		$this->c->header(
			'Processing ' .
			$groupArr['name'] .
			$this->c->rsetColor()
		);

		// Select group, here, only once
		$data = $nntp->selectGroup($groupArr['name']);
		if ($nntp->isError($data)) {
			$data = $nntp->dataError($nntp, $groupArr['name']);
			if ($nntp->isError($data)) {
				return;
			}
		}

		// Get targetpost based on days target.
		$targetpost = round($groupArr['first_record'] - $articles);
		if ($targetpost < 0) {
			$targetpost = round($data['first']);
		}

		if ($groupArr['first_record'] <= 0 || $targetpost <= 0) {
			$dmessage =
				"You need to run update_binaries on " .
				str_replace('alt.binaries', 'a.b', $data['group']) .
				". Otherwise the group is dead, you must disable it.";

			$this->c->error($dmessage);

			return;
		}

		// Check if we are grabbing further than the server has.
		if ($groupArr['first_record'] <= $data['first'] + $articles) {
			$dmessage =
				"We have hit the maximum we can backfill for " .
				str_replace('alt.binaries', 'a.b', $groupArr['name']) .
				", skipping it.";

			$this->c->notice($dmessage);

			//$groups = new Groups();
			//$groups->disableForPost($groupArr['name']);
			return;
		}

		// If our estimate comes back with stuff we already have, finish.
		if ($targetpost >= $groupArr['first_record']) {
			$dmessage = "Nothing to do, we already have the target post.";

			$this->c->notice($dmessage);

			return;
		}

		$this->c->primary(
			'Group ' . $data['group'] .
			"'s oldest article is " .
			number_format($data['first']) .
			', newest is ' .
			number_format($data['last']) .
			'. The groups retention is: ' .
			((int)
			((
					$this->postdate($nntp, $data['last'], false, $groupArr['name'], false, 'oldest') -
					$this->postdate($nntp, $data['first'], false, $groupArr['name'], false, 'oldest')) /
				86400
			)) .
			" days.\nOur oldest article is: " .
			number_format($groupArr['first_record']) .
			' which is (' .
			((int)
			((
					date('U') -
					$this->postdate($nntp, $groupArr['first_record'], false, $groupArr['name'], false, 'oldest')) /
				86400
			)) .
			' days old). Our backfill target is article ' .
			number_format($targetpost) .
			' which is (' .
			((int)
			((
					date('U') -
					$this->postdate($nntp, $targetpost, false, $groupArr['name'], false, 'oldest')) /
				86400
			)) .
			"\n days old)." .
			$this->c->rsetColor()
		);


		// Calculate total number of parts.
		$done = false;
		// Set first and last, moving the window by maxxMssgs.
		$last = $groupArr['first_record'] - 1;
		// Set the initial "chunk".
		$first = $last - $this->messagebuffer + 1;
		// Just in case this is the last chunk we needed.
		if ($targetpost > $first) {
			$first = $targetpost;
		}

		// In case postdate doesn't get a date.
		if (is_null($groupArr['first_record_postdate']) || $groupArr['first_record_postdate'] == 'NULL') {
			$firstr_date = time();
		} else {
			$firstr_date = strtotime($groupArr['first_record_postdate']);
		}

		while ($done === false) {
			$this->startLoop = microtime(true);

			$this->c->header(
				"\nGetting " .
				($last - $first + 1) .
				" articles from " .
				str_replace('alt.binaries', 'a.b', str_replace('alt.binaries', 'a.b', $data['group'])) .
				", " .
				$left .
				" group(s) left. (" .
				(number_format($first - $targetpost)) .
				" articles in queue)" .
				$this->c->rsetColor()
			);

			flush();
			$process = $this->safepartrepair ? 'update' : 'backfill';
			$binaries->scan($nntp, $groupArr, $first, $last, $process);
			$newdate = $this->postdate($nntp, $first, false, $groupArr['name'], true, 'oldest');
			if ($newdate !== false) {
				$firstr_date = $newdate;
			}

			$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s, first_record = %s, last_updated = NOW() WHERE ID = %d', $this->db->from_unixtime($firstr_date), $db->escapeString($first), $groupArr['ID']));
			if ($first == $targetpost) {
				$done = true;
			} else {
				// Keep going: set new last, new first, check for last chunk.
				$last = $first - 1;
				$first = $last - $this->messagebuffer + 1;
				if ($targetpost > $first) {
					$first = $targetpost;
				}
			}
		}
		// Set group's first postdate.
		$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s, last_updated = NOW() WHERE ID = %d', $this->db->from_unixtime($firstr_date), $groupArr['ID']));

		$timeGroup = number_format(microtime(true) - $this->startGroup, 2);


		$this->c->header(
			$data['group'] .
			' processed in ' .
			$timeGroup .
			" seconds." .
			$this->c->rsetColor()
		);
	}

	/**
	 * Download new headers for a single group.
	 *
	 * @param array  $groupArr Array of MySQL results for a single group.
	 * @param object $nntp     Instance of class NNTP
	 *
	 * @return void
	 */
	public
	function updateGroup($groupArr)
	{
		if (!isset($nntp)) {
			$message = "Not connected to usenet(binaries->updateGroup).";
			exit($this->c->error($message));
		}


		$this->startGroup = microtime(true);
		$this->c->primary('Processing ' . str_replace('alt.binaries', 'a.b', $groupArr['name']));
		$binaries = new Binaries();


		// Select the group, here, needed for processing the group
		$data = $nntp->selectGroup($groupArr['name']);
		if ($nntp->isError($data)) {
			$data = $nntp->dataError($nntp, $groupArr['name']);
			if ($nntp->isError($data)) {
				return;
			}
		}


		// Attempt to repair any missing parts before grabbing new ones.
		if ($groupArr['last_record'] != 0) {
			if ($this->DoPartRepair) {
				$this->c->primary("Part repair enabled. Checking for missing parts.");
				$this->partRepair($nntp, $groupArr);
			} else {
				$this->c->primary("Part repair disabled by user.");
			}
		}

		// Get first and last part numbers from newsgroup.
		$db = $this->db;

		if ($groupArr['last_record'] == 0) {
			// For new newsgroups - determine here how far you want to go back.
			if ($this->NewGroupScanByDays) {
				$first = $this->daytopost($this->NewGroupDaysToScan, $data);
				if ($first == '') {
					$this->c->warning("Skipping group: {$groupArr['name']}");

					return;
				}
			} else {
				if ($data['first'] > ($data['last'] - ($this->NewGroupMsgsToScan + $this->messagebuffer))) {
					$first = $data['first'];
				} else {
					$first = $data['last'] - ($this->NewGroupMsgsToScan + $this->messagebuffer);
				}
			}

			$left = $this->messagebuffer;
			$last = $grouplast = $data['last'] - $left;
		} else {
			$first = $groupArr['last_record'];

			// Leave 50%+ of the new articles on the server for next run (allow server enough time to actually make parts available).
			$newcount = $data['last'] - $first;
			$left = 0;
			if ($newcount > $this->messagebuffer) {
				// Drop the remaining plus $this->messagebuffer, pick them up on next run
				if ($newcount < (2 * $this->messagebuffer)) {
					$left = ((int)($newcount / 2));
					$last = $grouplast = ($data['last'] - $left);
				} else {
					$remainingcount = $newcount % $this->messagebuffer;
					$left = $remainingcount + $this->messagebuffer;
					$last = $grouplast = ($data['last'] - $left);
				}
			} else {
				$left = ((int)($newcount / 2));
				$last = $grouplast = ($data['last'] - $left);
			}
		}

		// Generate postdate for first record, for those that upgraded.
		if (is_null($groupArr['first_record_postdate']) && $groupArr['first_record'] != '0') {
			$newdate = $this->postdate($groupArr['first_record'], $data);
			if ($newdate !== false) {
				$first_record_postdate = $newdate;
			} else {
				$first_record_postdate = time();
			}

			$groupArr['first_record_postdate'] = $first_record_postdate;

			$db->queryExec(sprintf('UPDATE groups SET first_record_postdate = %s WHERE ID = %d', $this->db->from_unixtime($first_record_postdate), $groupArr['ID']));
		}

		// Defaults for post record first/last postdate
		if (is_null($groupArr['first_record_postdate'])) {
			$first_record_postdate = time();
		} else {
			$first_record_postdate = strtotime($groupArr['first_record_postdate']);
		}

		if (is_null($groupArr['last_record_postdate'])) {
			$last_record_postdate = time();
		} else {
			$last_record_postdate = strtotime($groupArr['last_record_postdate']);
		}


		// Calculate total number of parts.
		$total = $grouplast - $first;
		$realtotal = $data['last'] - $first;

		// If total is bigger than 0 it means we have new parts in the newsgroup.
		if ($total > 0) {
			if ($groupArr['last_record'] == 0) {
				$this->c->primary(
					'New group ' .
					$data['group'] .
					' starting with ' .
					(($this->NewGroupScanByDays) ? $this->NewGroupDaysToScan
						. ' days' : number_format($this->NewGroupMsgsToScan) .
						' messages'
					) .
					" worth. Leaving " .
					number_format($left) .
					" for next pass.\nServer oldest: " .
					number_format($data['first']) .
					' Server newest: ' .
					number_format($data['last']) .
					' Local newest: ' .
					number_format($groupArr['last_record'])
				);
			} else {
				$this->c->primary(
					'Group ' .
					$data['group'] .
					' has ' .
					number_format($realtotal) .
					" new articles. Leaving " .
					number_format($left) .
					" for next pass.\nServer oldest: " .
					number_format($data['first']) . ' Server newest: ' .
					number_format($data['last']) .
					' Local newest: ' .
					number_format($groupArr['last_record'])
				);
			}

			$done = false;
			// Get all the parts (in portions of $this->messagebuffer to not use too much memory).
			while ($done === false) {
				$this->startLoop = microtime(true);

				if ($total > $this->messagebuffer) {
					if ($first + $this->messagebuffer > $grouplast) {
						$last = $grouplast;
					} else {
						$last = $first + $this->messagebuffer;
					}
				}
				$first++;
				$this->c->header(
					"Getting " .
					number_format($last - $first + 1) .
					' articles (' . number_format($first) .
					' to ' .
					number_format($last) .
					') from ' .
					str_replace('alt.binaries', 'a.b', $data['group']) .
					" - (" .
					number_format($grouplast - $last) .
					" articles in queue)."
				);
				flush();

				// Get article headers from newsgroup. Let scan deal with nntp connection, else compression fails after first grab
				$scanSummary = $binaries->scan($nntp, $groupArr, $first, $last);

				// Scan failed - skip group.
				if ($scanSummary == false) {
					return;
				}

				// If new group, update first record & postdate
				if (is_null($groupArr['first_record_postdate']) && $groupArr['first_record'] == '0') {
					$groupArr['first_record'] = $scanSummary['firstArticleNumber'];

					if (isset($scanSummary['firstArticleDate'])) {
						$first_record_postdate = strtotime($scanSummary['firstArticleDate']);
					}

					$groupArr['first_record_postdate'] = $first_record_postdate;

					$db->queryExec(sprintf('UPDATE groups SET first_record = %s, first_record_postdate = %s WHERE ID = %d', $scanSummary['firstArticleNumber'], $this->db->from_unixtime($db->escapeString($first_record_postdate)), $groupArr['ID']));
				}

				if (isset($scanSummary['lastArticleDate'])) {
					$last_record_postdate = strtotime($scanSummary['lastArticleDate']);
				}

				$db->queryExec(sprintf('UPDATE groups SET last_record = %s, last_record_postdate = %s, last_updated = NOW() WHERE ID = %d', $db->escapeString($scanSummary['lastArticleNumber']), $this->db->from_unixtime($last_record_postdate), $groupArr['ID']));

				if ($last == $grouplast) {
					$done = true;
				} else {
					$first = $last;
				}
			}
			$timeGroup = number_format(microtime(true) - $this->startGroup, 2);
			$this->c->primary($data['group'] . ' processed in ' . $timeGroup . " seconds.");
		} else {
			$this->c->primary(
				'No new articles for ' .
				$data['group'] .
				' (first ' .
				number_format($first) .
				' last ' .
				number_format($last) .
				' grouplast ' .
				number_format($groupArr['last_record']) .
				' total ' . number_format($total) .
				")\n" .
				"Server oldest: " .
				number_format($data['first']) .
				' Server newest: ' .
				number_format($data['last']) .
				' Local newest: ' .
				number_format($groupArr['last_record'])
			);
		}
	}

	/**
	 * Attempt to get missing headers.
	 *
	 * @param $nntp     Instance of class NNTP.
	 * @param $groupArr The info for this group from mysql.
	 *
	 * @return void
	 */
	public
	function partRepair($nntp, $groupArr)
	{
		if (!isset($nntp)) {
			$dmessage = "Not connected to usenet(functions->partRepair).";
			exit($this->c->error("Not connected to usenet(functions->partRepair)."));
		}

		// Get all parts in partrepair table.
		$db = $this->db;

		// Check that tables exist, create if they do not
		$group['prname'] = 'partrepair';

		$missingParts = $db->query(sprintf('SELECT * FROM ' . $group['prname'] . ' WHERE groupID = %d AND attempts < 5 ORDER BY numberID ASC LIMIT %d', $groupArr['ID'], $this->partrepairlimit));
		$partsRepaired = $partsFailed = 0;

		if (sizeof($missingParts) > 0) {
			$this->consoleTools->overWritePrimary(
				'Attempting to repair ' .
				number_format(sizeof($missingParts)) .
				" parts."
			);

			// Loop through each part to group into continuous ranges with a maximum range of messagebuffer/4.
			$ranges = array();
			$partlist = array();
			$firstpart = $lastnum = $missingParts[0]['numberID'];
			foreach ($missingParts as $part) {
				if (($part['numberID'] - $firstpart) > ($this->messagebuffer / 4)) {
					$ranges[] = array('partfrom' => $firstpart, 'partto' => $lastnum, 'partlist' => $partlist);
					$firstpart = $part['numberID'];
					$partlist = array();
				}
				$partlist[] = $part['numberID'];
				$lastnum = $part['numberID'];
			}
			$ranges[] = array('partfrom' => $firstpart, 'partto' => $lastnum, 'partlist' => $partlist);

			$num_attempted = 0;

			// Download missing parts in ranges.
			foreach ($ranges as $range) {
				$this->startLoop = microtime(true);

				$partfrom = $range['partfrom'];
				$partto = $range['partto'];
				$partlist = $range['partlist'];
				$count = sizeof($range['partlist']);

				$num_attempted += $count;
				$this->consoleTools->overWritePrimary("Attempting repair: " . $this->consoleTools->percentString2($num_attempted - $count + 1, $num_attempted, sizeof($missingParts)) . ': ' . $partfrom . ' to ' . $partto);

				// Get article from newsgroup.
				$binaries = new Binaries();
				$binaries->scan($nntp, $groupArr, $partfrom, $partto, 'update');
			}

			// Calculate parts repaired
			$sql = sprintf('SELECT COUNT(ID) AS num FROM ' . $group['prname'] . ' WHERE groupID=%d AND numberID <= %d', $groupArr['ID'], $missingParts[sizeof($missingParts) - 1]['numberID']);
			$result = $db->queryOneRow($sql);
			if (isset($result['num'])) {
				$partsRepaired = (sizeof($missingParts)) - $result['num'];
			}

			// Update attempts on remaining parts for active group
			if (isset($missingParts[sizeof($missingParts) - 1]['ID'])) {
				$sql = sprintf("UPDATE ${group['prname']} SET attempts=attempts+1 WHERE groupID=%d AND numberID <= %d", $groupArr['ID'], $missingParts[sizeof($missingParts) - 1]['numberID']);
				$result = $db->queryExec($sql);
				if ($result) {
					$partsFailed = $result->rowCount();
				}
			}

			$this->c->primary(
				"\n" .
				number_format($partsRepaired) .
				" parts repaired."
			);
		}

		// Remove articles that we cant fetch after 5 attempts.
		$db->queryExec(sprintf('DELETE FROM ' . $group['prname'] . ' WHERE attempts >= 5 AND groupID = %d', $groupArr['ID']));
	}
	//end of testing
}