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phab/src/applications/chatlog/controller/PhabricatorChatLogChannelLogController.php
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PhabricatorChatLogChannelLogController.php
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<?php
final class PhabricatorChatLogChannelLogController
extends PhabricatorChatLogController {
private $channel;
public function willProcessRequest(array $data) {
$this->channel = $data['channel'];
}
public function processRequest() {
$request = $this->getRequest();
$user = $request->getUser();
$uri = clone $request->getRequestURI();
$uri->setQueryParams(array());
$pager = new AphrontCursorPagerView();
$pager->setURI($uri);
$pager->setPageSize(250);
$query = id(new PhabricatorChatLogQuery())
->setViewer($user)
->withChannels(array($this->channel));
list($after, $before, $map) = $this->getPagingParameters($request, $query);
$pager->setAfterID($after);
$pager->setBeforeID($before);
$logs = $query->executeWithCursorPager($pager);
// Show chat logs oldest-first.
$logs = array_reverse($logs);
// Divide all the logs into blocks, where a block is the same author saying
// several things in a row. A block ends when another user speaks, or when
// two minutes pass without the author speaking.
$blocks = array();
$block = null;
$last_author = null;
$last_epoch = null;
foreach ($logs as $log) {
$this_author = $log->getAuthor();
$this_epoch = $log->getEpoch();
// Decide whether we should start a new block or not.
$new_block = ($this_author !== $last_author) ||
($this_epoch - (60 * 2) > $last_epoch);
if ($new_block) {
if ($block) {
$blocks[] = $block;
}
$block = array(
'id' => $log->getID(),
'epoch' => $this_epoch,
'author' => $this_author,
'logs' => array($log),
);
} else {
$block['logs'][] = $log;
}
$last_author = $this_author;
$last_epoch = $this_epoch;
}
if ($block) {
$blocks[] = $block;
}
// Figure out CSS classes for the blocks. We alternate colors between
// lines, and highlight the entire block which contains the target ID or
// date, if applicable.
foreach ($blocks as $key => $block) {
$classes = array();
if ($key % 2) {
$classes[] = 'alternate';
}
$ids = mpull($block['logs'], 'getID', 'getID');
if (array_intersect_key($ids, $map)) {
$classes[] = 'highlight';
}
$blocks[$key]['class'] = $classes ? implode(' ', $classes) : null;
}
require_celerity_resource('phabricator-chatlog-css');
$out = array();
$out[] = '<table class="phabricator-chat-log">';
foreach ($blocks as $block) {
$author = $block['author'];
$author = phutil_utf8_shorten($author, 18);
$author = phutil_tag('td', array('class' => 'author'), $author);
$message = mpull($block['logs'], 'getMessage');
$message = implode("\n", $message);
$message = phutil_tag('td', array('class' => 'message'), $message);
$href = $uri->alter('at', $block['id']);
$timestamp = $block['epoch'];
$timestamp = phabricator_datetime($timestamp, $user);
$timestamp = phutil_tag('a', array('href' => $href), $timestamp);
$timestamp = phutil_tag(
'td',
array(
'class' => 'timestamp',
),
$timestamp);
$out[] = phutil_tag(
'tr',
array(
'class' => $block['class'],
),
array($author, $message, $timestamp));
}
$out[] = '</table>';
$form = id(new AphrontFormView())
->setUser($user)
->setMethod('GET')
->setAction($uri)
->appendChild(
id(new AphrontFormTextControl())
->setLabel('Date')
->setName('date')
->setValue($request->getStr('date')))
->appendChild(
id(new AphrontFormSubmitControl())
->setValue('Jump'));
return $this->buildStandardPageResponse(
array(
'<div class="phabricator-chat-log-panel">',
$form,
'<br />',
implode("\n", $out),
$pager,
'</div>',
),
array(
'title' => 'Channel Log',
));
}
/**
* From request parameters, figure out where we should jump to in the log.
* We jump to either a date or log ID, but load a few lines of context before
* it so the user can see the nearby conversation.
*/
private function getPagingParameters(
AphrontRequest $request,
PhabricatorChatLogQuery $query) {
$user = $request->getUser();
$at_id = $request->getInt('at');
$at_date = $request->getStr('date');
$context_log = null;
$map = array();
$query = clone $query;
$query->setLimit(8);
if ($at_id) {
// Jump to the log in question, and load a few lines of context before
// it.
$context_logs = $query
->setAfterID($at_id)
->execute();
$context_log = last($context_logs);
$map = array(
$at_id => true,
);
} else if ($at_date) {
$timezone = new DateTimeZone($user->getTimezoneIdentifier());
try {
$date = new DateTime($at_date, $timezone);
$timestamp = $date->format('U');
} catch (Exception $e) {
$timestamp = null;
}
if ($timestamp) {
$context_logs = $query
->withMaximumEpoch($timestamp)
->execute();
$context_log = last($context_logs);
$target_log = head($context_logs);
if ($target_log) {
$map = array(
$target_log->getID() => true,
);
}
}
}
if ($context_log) {
$after = null;
$before = $context_log->getID() - 1;
} else {
$after = $request->getInt('after');
$before = $request->getInt('before');
}
return array($after, $before, $map);
}
}
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