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
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
<?php
declare(strict_types=1);
namespace Cron;
use DateTimeInterface;
use InvalidArgumentException;
/**
* Day of week field. Allows: * / , - ? L #.
*
* Days of the week can be represented as a number 0-7 (0|7 = Sunday)
* or as a three letter string: SUN, MON, TUE, WED, THU, FRI, SAT.
*
* 'L' stands for "last". It allows you to specify constructs such as
* "the last Friday" of a given month.
*
* '#' is allowed for the day-of-week field, and must be followed by a
* number between one and five. It allows you to specify constructs such as
* "the second Friday" of a given month.
*/
class DayOfWeekField extends AbstractField
{
/**
* {@inheritdoc}
*/
protected $rangeStart = 0;
/**
* {@inheritdoc}
*/
protected $rangeEnd = 7;
/**
* @var array Weekday range
*/
protected $nthRange;
/**
* {@inheritdoc}
*/
protected $literals = [1 => 'MON', 2 => 'TUE', 3 => 'WED', 4 => 'THU', 5 => 'FRI', 6 => 'SAT', 7 => 'SUN'];
/**
* Constructor
*/
public function __construct()
{
$this->nthRange = range(1, 5);
parent::__construct();
}
/**
* @inheritDoc
*/
public function isSatisfiedBy(DateTimeInterface $date, $value, bool $invert): bool
{
if ('?' === $value) {
return true;
}
// Convert text day of the week values to integers
$value = $this->convertLiterals($value);
$currentYear = (int) $date->format('Y');
$currentMonth = (int) $date->format('m');
$lastDayOfMonth = (int) $date->format('t');
// Find out if this is the last specific weekday of the month
if ($lPosition = strpos($value, 'L')) {
$weekday = $this->convertLiterals(substr($value, 0, $lPosition));
$weekday %= 7;
$daysInMonth = (int) $date->format('t');
$remainingDaysInMonth = $daysInMonth - (int) $date->format('d');
return (($weekday === (int) $date->format('w')) && ($remainingDaysInMonth < 7));
}
// Handle # hash tokens
if (strpos($value, '#')) {
[$weekday, $nth] = explode('#', $value);
if (!is_numeric($nth)) {
throw new InvalidArgumentException("Hashed weekdays must be numeric, {$nth} given");
} else {
$nth = (int) $nth;
}
// 0 and 7 are both Sunday, however 7 matches date('N') format ISO-8601
if ('0' === $weekday) {
$weekday = 7;
}
$weekday = (int) $this->convertLiterals((string) $weekday);
// Validate the hash fields
if ($weekday < 0 || $weekday > 7) {
throw new InvalidArgumentException("Weekday must be a value between 0 and 7. {$weekday} given");
}
if (!\in_array($nth, $this->nthRange, true)) {
throw new InvalidArgumentException("There are never more than 5 or less than 1 of a given weekday in a month, {$nth} given");
}
// The current weekday must match the targeted weekday to proceed
if ((int) $date->format('N') !== $weekday) {
return false;
}
$tdate = clone $date;
$tdate = $tdate->setDate($currentYear, $currentMonth, 1);
$dayCount = 0;
$currentDay = 1;
while ($currentDay < $lastDayOfMonth + 1) {
if ((int) $tdate->format('N') === $weekday) {
if (++$dayCount >= $nth) {
break;
}
}
$tdate = $tdate->setDate($currentYear, $currentMonth, ++$currentDay);
}
return (int) $date->format('j') === $currentDay;
}
// Handle day of the week values
if (false !== strpos($value, '-')) {
$parts = explode('-', $value);
if ('7' === $parts[0]) {
$parts[0] = 0;
} elseif ('0' === $parts[1]) {
$parts[1] = 7;
}
$value = implode('-', $parts);
}
// Test to see which Sunday to use -- 0 == 7 == Sunday
$format = \in_array(7, array_map(function ($value) {
return (int) $value;
}, str_split($value)), true) ? 'N' : 'w';
$fieldValue = (int) $date->format($format);
return $this->isSatisfied($fieldValue, $value);
}
/**
* @inheritDoc
*/
public function increment(DateTimeInterface &$date, $invert = false, $parts = null): FieldInterface
{
if (! $invert) {
$date = $date->add(new \DateInterval('P1D'));
$date = $date->setTime(0, 0);
} else {
$date = $date->sub(new \DateInterval('P1D'));
$date = $date->setTime(23, 59);
}
return $this;
}
/**
* {@inheritdoc}
*/
public function validate(string $value): bool
{
$basicChecks = parent::validate($value);
if (!$basicChecks) {
if ('?' === $value) {
return true;
}
// Handle the # value
if (false !== strpos($value, '#')) {
$chunks = explode('#', $value);
$chunks[0] = $this->convertLiterals($chunks[0]);
if (parent::validate($chunks[0]) && is_numeric($chunks[1]) && \in_array((int) $chunks[1], $this->nthRange, true)) {
return true;
}
}
if (preg_match('/^(.*)L$/', $value, $matches)) {
return $this->validate($matches[1]);
}
return false;
}
return $basicChecks;
}
}
|
