Andrew Dolgov
4 years ago
commit
e993d4feb2
@ -0,0 +1,88 @@
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<?php
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class TimeHelper {
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static function smart_date_time($timestamp, $tz_offset = 0, $owner_uid = false, $eta_min = false) {
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if (!$owner_uid) $owner_uid = $_SESSION['uid'];
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if ($eta_min && time() + $tz_offset - $timestamp < 3600) {
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return T_sprintf("%d min", date("i", time() + $tz_offset - $timestamp));
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} else if (date("Y.m.d", $timestamp) == date("Y.m.d", time() + $tz_offset)) {
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$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
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if (strpos((strtolower($format)), "a") === false)
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return date("G:i", $timestamp);
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else
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return date("g:i a", $timestamp);
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} else if (date("Y", $timestamp) == date("Y", time() + $tz_offset)) {
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$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
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return date($format, $timestamp);
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} else {
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$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
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return date($format, $timestamp);
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}
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}
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static function make_local_datetime($timestamp, $long, $owner_uid = false,
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$no_smart_dt = false, $eta_min = false) {
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if (!$owner_uid) $owner_uid = $_SESSION['uid'];
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if (!$timestamp) $timestamp = '1970-01-01 0:00';
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global $utc_tz;
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global $user_tz;
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if (!$utc_tz) $utc_tz = new DateTimeZone('UTC');
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$timestamp = substr($timestamp, 0, 19);
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# We store date in UTC internally
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$dt = new DateTime($timestamp, $utc_tz);
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$user_tz_string = get_pref('USER_TIMEZONE', $owner_uid);
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if ($user_tz_string != 'Automatic') {
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try {
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if (!$user_tz) $user_tz = new DateTimeZone($user_tz_string);
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} catch (Exception $e) {
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$user_tz = $utc_tz;
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}
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$tz_offset = $user_tz->getOffset($dt);
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} else {
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$tz_offset = (int) -$_SESSION["clientTzOffset"];
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}
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$user_timestamp = $dt->format('U') + $tz_offset;
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if (!$no_smart_dt) {
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return self::smart_date_time($user_timestamp,
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$tz_offset, $owner_uid, $eta_min);
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} else {
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if ($long)
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$format = get_pref('LONG_DATE_FORMAT', $owner_uid);
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else
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$format = get_pref('SHORT_DATE_FORMAT', $owner_uid);
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return date($format, $user_timestamp);
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}
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}
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static function convert_timestamp($timestamp, $source_tz, $dest_tz) {
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try {
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$source_tz = new DateTimeZone($source_tz);
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} catch (Exception $e) {
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$source_tz = new DateTimeZone('UTC');
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}
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try {
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$dest_tz = new DateTimeZone($dest_tz);
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} catch (Exception $e) {
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$dest_tz = new DateTimeZone('UTC');
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}
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$dt = new DateTime(date('Y-m-d H:i:s', $timestamp), $source_tz);
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return $dt->format('U') + $dest_tz->getOffset($dt);
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}
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}
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