Period.php — Matomo Analytics – Powerful, Privacy-First Insights for WordPress 5.2.0

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Period.php

418 lines

1	<?php
2
3	/**
4	* Matomo - free/libre analytics platform
5	*
6	* @link https://matomo.org
7	* @license https://www.gnu.org/licenses/gpl-3.0.html GPL v3 or later
8	*/
9	namespace Piwik;
10
11	use Piwik\Container\StaticContainer;
12	use Piwik\Period\Factory;
13	use Piwik\Period\Range;
14	use Piwik\Translation\Translator;
15	/**
16	* Date range representation.
17	*
18	* Piwik allows users to view aggregated statistics for single days and for date
19	* ranges consisting of several days. When requesting data, a date string and
20	* a period string must be used to specify the date range that the data regards.
21	* This is the class Piwik uses to represent and manipulate those date ranges.
22	*
23	* There are five types of periods in Piwik: day, week, month, year and range,
24	* where range is any date range. The reason the other periods exist instead
25	* of just range is that Piwik will pre-archive reports for days, weeks, months
26	* and years, while every custom date range is archived on-demand.
27	*
28	* @api
29	*/
30	abstract class Period
31	{
32	/**
33	* Array of subperiods
34	* @var Period[]
35	*/
36	protected $subperiods = array();
37	protected $subperiodsProcessed = \false;
38	/**
39	* @var string
40	*/
41	protected $label = null;
42	/**
43	* @var Date
44	*/
45	protected $date = null;
46	/**
47	* @var Translator
48	*/
49	protected $translator;
50	/**
51	* Constructor.
52	*
53	* @param Date $date
54	* @ignore
55	*/
56	public function __construct(\Piwik\Date $date)
57	{
58	$this->date = clone $date;
59	$this->translator = StaticContainer::get('Piwik\\Translation\\Translator');
60	}
61	public function __sleep()
62	{
63	return ['date'];
64	}
65	public function __wakeup()
66	{
67	$this->translator = StaticContainer::get('Piwik\\Translation\\Translator');
68	}
69	/**
70	* Returns true if `$dateString` and `$period` represent multiple periods.
71	*
72	* Will return true for date/period combinations where date references multiple
73	* dates and period is not `'range'`. For example, will return true for:
74	*
75	* - date = `2012-01-01,2012-02-01` and period = `'day'`
76	* - date = `2012-01-01,2012-02-01` and period = `'week'`
77	* - date = `last7` and period = `'month'`
78	*
79	* etc.
80	*
81	* @static
82	* @param $dateString string The date query parameter value.
83	* @param $period string The period query parameter value.
84	* @return boolean
85	*/
86	public static function isMultiplePeriod($dateString, $period)
87	{
88	return is_string($dateString) && (preg_match('/^(last\|previous){1}([0-9]*)$/D', $dateString, $regs) \|\| Range::parseDateRange($dateString)) && $period != 'range';
89	}
90	/**
91	* Checks the given date format whether it is a correct date format and if not, throw an exception.
92	*
93	* For valid date formats have a look at the {@link \Piwik\Date::factory()} method and
94	* {@link isMultiplePeriod()} method.
95	*
96	* @param string $dateString
97	* @throws \Exception If `$dateString` is in an invalid format or if the time is before
98	* Tue, 06 Aug 1991.
99	*/
100	public static function checkDateFormat($dateString)
101	{
102	if (self::isMultiplePeriod($dateString, 'day')) {
103	return;
104	}
105	\Piwik\Date::factory($dateString);
106	}
107	/**
108	* Returns the first day of the period.
109	*
110	* @return Date
111	*/
112	public function getDateStart()
113	{
114	$this->generate();
115	if (count($this->subperiods) == 0) {
116	return $this->getDate();
117	}
118	$periods = $this->getSubperiods();
119	/** @var $currentPeriod Period */
120	$currentPeriod = $periods[0];
121	while ($currentPeriod->getNumberOfSubperiods() > 0) {
122	$periods = $currentPeriod->getSubperiods();
123	$currentPeriod = $periods[0];
124	}
125	return $currentPeriod->getDate();
126	}
127	/**
128	* Returns the start date & time of this period.
129	*
130	* @return Date
131	*/
132	public function getDateTimeStart()
133	{
134	return $this->getDateStart()->getStartOfDay();
135	}
136	/**
137	* Returns the end date & time of this period.
138	*
139	* @return Date
140	*/
141	public function getDateTimeEnd()
142	{
143	return $this->getDateEnd()->getEndOfDay();
144	}
145	/**
146	* Returns the last day of the period.
147	*
148	* @return Date
149	*/
150	public function getDateEnd()
151	{
152	$this->generate();
153	if (count($this->subperiods) == 0) {
154	return $this->getDate();
155	}
156	$periods = $this->getSubperiods();
157	/** @var $currentPeriod Period */
158	$currentPeriod = $periods[count($periods) - 1];
159	while ($currentPeriod->getNumberOfSubperiods() > 0) {
160	$periods = $currentPeriod->getSubperiods();
161	$currentPeriod = $periods[count($periods) - 1];
162	}
163	return $currentPeriod->getDate();
164	}
165	/**
166	* Returns the period ID.
167	*
168	* @return int A unique integer for this type of period.
169	*/
170	public function getId()
171	{
172	return \Piwik\Piwik::$idPeriods[$this->getLabel()];
173	}
174	/**
175	* Returns the label for the current period.
176	*
177	* @return string `"day"`, `"week"`, `"month"`, `"year"`, `"range"`
178	*/
179	public function getLabel()
180	{
181	return $this->label;
182	}
183	/**
184	* @return Date
185	*/
186	protected function getDate()
187	{
188	return $this->date;
189	}
190	protected function generate()
191	{
192	$this->subperiodsProcessed = \true;
193	}
194	/**
195	* Returns the number of available subperiods.
196	*
197	* @return int
198	*/
199	public function getNumberOfSubperiods()
200	{
201	$this->generate();
202	return count($this->subperiods);
203	}
204	/**
205	* Returns the set of Period instances that together make up this period. For a year,
206	* this would be 12 months. For a month this would be 28-31 days. Etc.
207	*
208	* @return Period[]
209	*/
210	public function getSubperiods()
211	{
212	$this->generate();
213	return $this->subperiods;
214	}
215	/**
216	* Returns whether the date `$date` is within the current period or not.
217	*
218	* Note: the time component of the period's dates and `$date` is ignored.
219	*
220	* @param Date $today
221	* @return bool
222	*/
223	public function isDateInPeriod(\Piwik\Date $date)
224	{
225	$ts = $date->getStartOfDay()->getTimestamp();
226	return $ts >= $this->getDateStart()->getStartOfDay()->getTimestamp() && $ts < $this->getDateEnd()->addDay(1)->getStartOfDay()->getTimestamp();
227	}
228	/**
229	* Returns whether the given period date range intersects with this one.
230	*
231	* @param Period $other
232	* @return bool
233	*/
234	public function isPeriodIntersectingWith(\Piwik\Period $other)
235	{
236	return !($this->getDateEnd()->getTimestamp() < $other->getDateStart()->getTimestamp() \|\| $this->getDateStart()->getTimestamp() > $other->getDateEnd()->getTimestamp());
237	}
238	/**
239	* Returns the start day and day after the end day for this period in the given timezone.
240	*
241	* @param Date[] $timezone
242	*/
243	public function getBoundsInTimezone(string $timezone)
244	{
245	$date1 = $this->getDateTimeStart()->setTimezone($timezone);
246	$date2 = $this->getDateTimeEnd()->setTimezone($timezone);
247	return [$date1, $date2];
248	}
249	/**
250	* Add a date to the period.
251	*
252	* Protected because adding periods after initialization is not supported.
253	*
254	* @param \Piwik\Period $period Valid Period object
255	* @ignore
256	*/
257	protected function addSubperiod($period)
258	{
259	$this->subperiods[] = $period;
260	}
261	/**
262	* Returns a list of strings representing the current period.
263	*
264	* @param string $format The format of each individual day.
265	* @return array\|string An array of string dates that this period consists of.
266	*/
267	public function toString($format = "Y-m-d")
268	{
269	$this->generate();
270	$dateString = array();
271	foreach ($this->subperiods as $period) {
272	$childPeriodStr = $period->toString($format);
273	if (is_array($childPeriodStr)) {
274	$childPeriodStr = implode(",", $childPeriodStr);
275	}
276	$dateString[] = $childPeriodStr;
277	}
278	return $dateString;
279	}
280	/**
281	* See {@link toString()}.
282	*
283	* @return string
284	*/
285	public function __toString()
286	{
287	return implode(",", $this->toString());
288	}
289	/**
290	* Returns a pretty string describing this period.
291	*
292	* @return string
293	*/
294	public abstract function getPrettyString();
295	/**
296	* Returns a short string description of this period that is localized with the currently used
297	* language.
298	*
299	* @return string
300	*/
301	public abstract function getLocalizedShortString();
302	/**
303	* Returns a long string description of this period that is localized with the currently used
304	* language.
305	*
306	* @return string
307	*/
308	public abstract function getLocalizedLongString();
309	/**
310	* Returns the label of the period type that is one size smaller than this one, or null if
311	* it's the smallest.
312	*
313	* Range periods and other such 'period collections' are not considered as separate from
314	* the value type of the collection. So a range period will return the result of the
315	* subperiod's `getImmediateChildPeriodLabel()` method.
316	*
317	* @ignore
318	* @return string\|null
319	*/
320	public abstract function getImmediateChildPeriodLabel();
321	/**
322	* Returns the label of the period type that is one size bigger than this one, or null
323	* if it's the biggest.
324	*
325	* Range periods and other such 'period collections' are not considered as separate from
326	* the value type of the collection. So a range period will return the result of the
327	* subperiod's `getParentPeriodLabel()` method.
328	*
329	* @ignore
330	*/
331	public abstract function getParentPeriodLabel();
332	/**
333	* Returns the date range string comprising two dates
334	*
335	* @return string eg, `'2012-01-01,2012-01-31'`.
336	*/
337	public function getRangeString()
338	{
339	$dateStart = $this->getDateStart();
340	$dateEnd = $this->getDateEnd();
341	return $dateStart->toString("Y-m-d") . "," . $dateEnd->toString("Y-m-d");
342	}
343	/**
344	* @param string $format
345	*
346	* @return mixed
347	*/
348	protected function getTranslatedRange($format)
349	{
350	$dateStart = $this->getDateStart();
351	$dateEnd = $this->getDateEnd();
352	list($formatStart, $formatEnd) = $this->explodeFormat($format);
353	$string = $dateStart->getLocalized($formatStart);
354	$string .= $dateEnd->getLocalized($formatEnd, \false);
355	return $string;
356	}
357	/**
358	* Explodes the given format into two pieces. One that can be user for start date and the other for end date
359	*
360	* @param $format
361	* @return array
362	*/
363	protected function explodeFormat($format)
364	{
365	$intervalTokens = array(array('d', 'E', 'C'), array('M', 'L'), array('y'));
366	$offset = strlen($format);
367	// replace string literals encapsulated by ' with same country of *
368	$cleanedFormat = preg_replace_callback('/(\'[^\']+\')/', array($this, 'replaceWithStars'), $format);
369	// search for first duplicate date field
370	foreach ($intervalTokens as $tokens) {
371	if (preg_match_all('/[' . implode('\|', $tokens) . ']+/', $cleanedFormat, $matches, \PREG_OFFSET_CAPTURE) && count($matches[0]) > 1 && $offset > $matches[0][1][1]) {
372	$offset = $matches[0][1][1];
373	}
374	}
375	return array(substr($format, 0, $offset), substr($format, $offset));
376	}
377	private function replaceWithStars($matches)
378	{
379	return str_repeat("*", strlen($matches[0]));
380	}
381	protected function getRangeFormat($short = \false)
382	{
383	$maxDifference = 'D';
384	if ($this->getDateStart()->toString('y') != $this->getDateEnd()->toString('y')) {
385	$maxDifference = 'Y';
386	} elseif ($this->getDateStart()->toString('m') != $this->getDateEnd()->toString('m')) {
387	$maxDifference = 'M';
388	}
389	$dateTimeFormatProvider = StaticContainer::get('Piwik\\Intl\\Data\\Provider\\DateTimeFormatProvider');
390	return $dateTimeFormatProvider->getRangeFormatPattern($short, $maxDifference);
391	}
392	/**
393	* Returns all child periods that exist within this periods entire date range. Cascades
394	* downwards over all period types that are smaller than this one. For example, month periods
395	* will cascade to week and day periods and year periods will cascade to month, week and day
396	* periods.
397	*
398	* The method will not return periods that are outside the range of this period.
399	*
400	* @return Period[]
401	* @ignore
402	*/
403	public function getAllOverlappingChildPeriods()
404	{
405	return $this->getAllOverlappingChildPeriodsInRange($this->getDateStart(), $this->getDateEnd());
406	}
407	private function getAllOverlappingChildPeriodsInRange(\Piwik\Date $dateStart, \Piwik\Date $dateEnd)
408	{
409	$result = array();
410	$childPeriodType = $this->getImmediateChildPeriodLabel();
411	if (empty($childPeriodType)) {
412	return $result;
413	}
414	$childPeriods = Factory::build($childPeriodType, $dateStart->toString() . ',' . $dateEnd->toString());
415	return array_merge($childPeriods->getSubperiods(), $childPeriods->getAllOverlappingChildPeriodsInRange($dateStart, $dateEnd));
416	}
417	}
418