summaryrefslogtreecommitdiffstats
path: root/modules-available/rebootcontrol/inc/scheduler.inc.php
blob: 7a5c08dc454817819ab552129423cacc1c3d0406 (plain) (blame)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
<?php

class Scheduler
{

	public static function updateSchedule($locationid, $options, $openingTimes)
	{
		if ($openingTimes == '') {
			self::deleteSchedule($locationid);
			return false;
		}
		$nextexec = self::calculateNext($options, $openingTimes);
		$json_options = json_encode($options);
		if ($nextexec !== false) {
			self::upsert($locationid, $nextexec['action'], $nextexec['time'], $json_options);
		} else {
			// All times are getting ignored because they are within 5 minutes of each other, delete possible db entries.
			self::deleteSchedule($locationid);
		}
		return true;
	}

	public static function deleteSchedule($locationid)
	{
		Database::exec("DELETE FROM `reboot_scheduler` 
			WHERE locationid = :lid", ['lid' => $locationid]);
	}

	private static function calculateNext($options, $openingTimes)
	{
		$openingTimes = json_decode($openingTimes, true);
		$now = time();
		$openTimes = [];
		$closeTimes = [];
		foreach ($openingTimes as $row) {
			if (!$options['wol'] && !$options['sd'])
				continue;
			if ($options['wol']) {
				$open = explode(':', $row['openingtime']);
				$openTime = $open[0] * 60 + $open[1] - $options['wol-offset'];
			}
			if ($options['sd']) {
				$close = explode(':', $row['closingtime']);
				$closeTime = $close[0] * 60 + $close[1] + $options['sd-offset'];
			}
			foreach ($row['days'] as $day) {
				if ($options['wol']) {
					$nextOpen = strtotime(date('Y-m-d H:i', strtotime($day . ' ' . $openTime . ' minutes')));
					if ($nextOpen < $now) {
						$openTimes[] = strtotime(date('Y-m-d H:i', strtotime('next ' . $day . ' ' . $openTime . ' minutes')));
					} else {
						$openTimes[] = $nextOpen;
					}
				}
				if ($options['sd']) {
					$nextClose = strtotime(date('Y-m-d H:i', strtotime($day . ' ' . $closeTime . ' minutes')));
					if ($nextClose < $now) {
						$closeTimes[] = strtotime(date('Y-m-d H:i', strtotime('next ' . $day . ' ' . $closeTime . ' minutes')));
					} else {
						$closeTimes[] = $nextClose;
					}
				}
			}
		}

		sort($openTimes);
		sort($closeTimes);
		$res = [];

		if ($options['wol'] && !$options['sd']) {
			$res['action'] = 'wol';
			$res['time'] = $openTimes[0];
			return $res;
		} else if ($options['sd'] && !$options['wol']) {
			$res['action'] = 'sd';
			$res['time'] = $closeTimes[0];
			return $res;
		}

		for ($i = 0; $i <= sizeof($openTimes); $i++) {
			if (abs($openTimes[$i] - $closeTimes[$i]) < 300) {
				// If difference is < 5 min, ignore both events.
				continue;
			} elseif (abs($openTimes[$i] - $closeTimes[$i]) < 900) {
				// If difference is < 15 min, reboot at the earlier time.
				$res['action'] = 'rb';
				$res['time'] = $openTimes[$i] < $closeTimes[$i] ? $openTimes[$i] : $closeTimes[$i];
			} else {
				// Use first event.
				if ($openTimes[$i] < $closeTimes[$i]) {
					$res['action'] = 'wol';
					$res['time'] = $openTimes[$i];
				} else {
					$res['action'] = 'sd';
					$res['time'] = $closeTimes[$i];
				}
			}
			return $res;
		}
		return false;
	}

	private static function upsert($locationid, $action, $nextexec, $options)
	{
		$schedule = Database::queryFirst("SELECT locationid 
			FROM `reboot_scheduler`
			WHERE locationid = :lid", [
			'lid' => $locationid
		]);
		if ($schedule === false) {
			Database::exec("INSERT INTO `reboot_scheduler` (locationid, action, nextexecution, options) 
				VALUES (:lid, :act, :next, :opt)", [
				'lid' => $locationid,
				'act' => $action,
				'next' => $nextexec,
				'opt' => $options
			]);
		} else {
			Database::exec("UPDATE `reboot_scheduler` 
				SET action = :act, nextexecution = :next, options = :opt
				WHERE locationid = :lid", [
				'act' => $action,
				'next' => $nextexec,
				'opt' => $options,
				'lid' => $locationid
			]);
		}
		return true;
	}

}