TimeValueCalculator::charsAffectedByPrecision() - Code Metrics - Inspection of "Add getLowerTimestamp() and getHigherTimestamp()" - DataValues/Time - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Pull Request — master (#140)

unknown

created 2018-07-09 17:14 UTC

TimeValueCalculator::charsAffectedByPrecision() C

↳ Parent: TimeValueCalculator

Complexity

Conditions	15
Paths	15

Size

Total Lines

Duplication

Lines	0
Ratio	0 %

Code Coverage

Tests	45
CRAP Score	15

Importance

Changes

Metric	Value
dl	0
loc	48
ccs	45
cts	45
cp	1
rs	5.9166
c	0
b	0
f	0
cc	15
nc	15
nop	1
crap	15

How to fix Complexity

<?php

namespace DataValues;

use InvalidArgumentException;

/**
 * Logical and mathematical helper functions for calculations with and conversions from TimeValue
 * objects.
 *
 * @since 0.6
 *
 * @license GPL-2.0+
 * @author Thiemo Kreuz
 */
class TimeValueCalculator {

	/**
	 * Average length of a year in the Gregorian calendar in seconds, calculated via
	 * 365 + 1 / 4 - 1 / 100 + 1 / 400 = 365.2425 days.
	 */
	const SECONDS_PER_GREGORIAN_YEAR = 31556952;

	/**
	 * Maximum length for a timestamp.
	 */
	private $MAX_LENGTH_TIMESTAMP = 33;

	/**
	 * Lowest positive timestamp.
	 */
	private $TIMESTAMP_ZERO = '+0000000000000000-01-01T00:00:00Z';

	/**
	 * Highest positive timestamp strictly earlier than the lowest positive timestamp with
	 * a length of $MAX_LENGTH_TIMESTAMP + 1.
	 */
	private $HIGHEST_TIMESTAMP = '+9999999999999999-12-31T23:59:59Z';

	/**
	 * This returns a Unix timestamp from a TimeValue similar to PHP's mk_time() (or strtotime()),
	 * but with no range limitations. Data type is float because PHP's 32 bit integer would
	 * clip in the year 2038.
	 *
	 * @param TimeValue $timeValue
	 *
	 * @return float seconds since 1970-01-01T00:00:00Z
	 */
	public function getTimestamp( TimeValue $timeValue ) {
		return $this->getSecondsSinceUnixEpoch( $timeValue->getTime(), $timeValue->getTimezone() );
	}

	/**
	 * Returns the lowest possible Unix timestamp from a TimeValue considering its precision
	 * and its before value. Data type is float because PHP's 32 bit integer would clip in the
	 * year 2038.
	 *
	 * @param TimeValue $timeValue
	 *
	 * @return float seconds since 1970-01-01T00:00:00Z
	 */
	public function getLowerTimestamp( TimeValue $timeValue ) {
		$precision = $timeValue->getPrecision();
		$timestamp = $timeValue->getTime();
		if ( $timestamp[0] === '+' || $precision >= TimeValue::PRECISION_YEAR ) {
			$timestamp = $this->timestampAbsFloor( $timestamp, $precision );
		} else {
			// digits corresponding to [0, PRECISION_YEAR] must be maximized
			// digits corresponding to [PRECISION_MONTH, PRECISION_SECOND] must be minimized
			$subTimestampLeft = $this->timestampAbsCeiling( $timestamp, $precision );
			$subTimestampLeft = substr(
				$subTimestampLeft,
				0,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
			);
			$subTimestampRight = $this->timestampAbsFloor( $timestamp, $precision );
			$subTimestampRight = substr(
				$subTimestampRight,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
			);
			$timestamp = $subTimestampLeft . $subTimestampRight;
		}
		$unixTimestamp = $this->getSecondsSinceUnixEpoch( $timestamp, $timeValue->getTimezone() );
		$unixTimestamp -= $timeValue->getBefore() * $this->getSecondsForPrecision( $precision );
		return $unixTimestamp;
	}

	/**
	 * Returns the highest possible Unix timestamp from a TimeValue considering its precision
	 * and its after value. Data type is float because PHP's 32 bit integer would clip in the
	 * year 2038.
	 *
	 * @param TimeValue $timeValue
	 *
	 * @return float seconds since 1970-01-01T00:00:00Z
	 */
	public function getHigherTimestamp( TimeValue $timeValue ) {
		$precision = $timeValue->getPrecision();
		$timestamp = $timeValue->getTime();
		if ( $timestamp[0] === '+' || $precision >= TimeValue::PRECISION_YEAR ) {
			$timestamp = $this->timestampAbsCeiling( $timestamp, $precision );
		} else {
			// digits corresponding to [0, PRECISION_YEAR] must be minimized
			// digits corresponding to [PRECISION_MONTH, PRECISION_SECOND] must be maximized
			$subTimestampLeft = $this->timestampAbsFloor( $timestamp, $precision );
			$subTimestampLeft = substr(
				$subTimestampLeft,
				0,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
			);
			$subTimestampRight = $this->timestampAbsCeiling( $timestamp, $precision );
			$subTimestampRight = substr(
				$subTimestampRight,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
			);
			$timestamp = $subTimestampLeft . $subTimestampRight;
		}
		$unixTimestamp = $this->getSecondsSinceUnixEpoch( $timestamp, $timeValue->getTimezone() );
		$unixTimestamp += $timeValue->getAfter() * $this->getSecondsForPrecision( $precision );
		return $unixTimestamp;
	}

	/**
	 * @param string $time an ISO 8601 date and time
	 * @param int $timezone offset from UTC in minutes
	 *
	 * @throws InvalidArgumentException
	 * @return float seconds since 1970-01-01T00:00:00Z
	 */
	private function getSecondsSinceUnixEpoch( $time, $timezone = 0 ) {
		// Validation is done in TimeValue. As long if we found enough numbers we are fine.
		if ( !preg_match( '/([-+]?\d+)\D+(\d+)\D+(\d+)\D+(\d+)\D+(\d+)\D+(\d+)/', $time, $matches )
		) {
			throw new InvalidArgumentException( "Failed to parse time value $time." );
		}
		list( , $fullYear, $month, $day, $hour, $minute, $second ) = $matches;

		// We use mktime only for the month, day and time calculation. Set the year to the smallest
		// possible in the 1970-2038 range to be safe, even if it's 1901-2038 since PHP 5.1.0.
		$year = $this->isLeapYear( $fullYear ) ? 1972 : 1970;

		$defaultTimezone = date_default_timezone_get();
		date_default_timezone_set( 'UTC' );
		// With day/month set to 0 mktime would calculate the last day of the previous month/year.
		// In the context of this calculation we must assume 0 means "start of the month/year".
		$timestamp = mktime( $hour, $minute, $second, max( 1, $month ), max( 1, $day ), $year );
		date_default_timezone_set( $defaultTimezone );

		if ( $timestamp === false ) {
			throw new InvalidArgumentException( "Failed to get epoche from time value $time." );
		}

		$missingYears = ( $fullYear < 0 ? $fullYear + 1 : $fullYear ) - $year;
		$missingLeapDays = $this->getNumberOfLeapYears( $fullYear )
			- $this->getNumberOfLeapYears( $year );

		return $timestamp + ( $missingYears * 365 + $missingLeapDays ) * 86400 - $timezone * 60;
	}

	/**
	 * @param string $calendar only TimeValue::CALENDAR_GREGORIAN is supported
	 * @param float $month
	 * @param float $year
	 *
	 * @throws InvalidArgumentException if $calendar is not supported
	 * @return int
	 */
	public function getDaysInMonth( $calendar, $month, $year ) {
		if ( $calendar !== TimeValue::CALENDAR_GREGORIAN ) {
			throw new InvalidArgumentException( "Only Gregorian calendar is supported." );
		}
		return $month == 2 ? ( $this->isLeapYear( $year ) ? 29 : 28 ) : ( ( $month - 1 ) % 7 % 2 ? 30 : 31 );
	}

	/**
	 * @param float $year
	 *
	 * @return bool if the year is a leap year in the Gregorian calendar
	 */
	public function isLeapYear( $year ) {
		$year = $year < 0 ? ceil( $year ) + 1 : floor( $year );
		$isMultipleOf4 = fmod( $year, 4 ) === 0.0;
		$isMultipleOf100 = fmod( $year, 100 ) === 0.0;
		$isMultipleOf400 = fmod( $year, 400 ) === 0.0;
		return $isMultipleOf4 && !$isMultipleOf100 || $isMultipleOf400;
	}

	/**
	 * @param float $year
	 *
	 * @return float The number of leap years since year 1. To be more precise: The number of
	 * leap days in the range between 31 December of year 1 and 31 December of the given year.
	 */
	public function getNumberOfLeapYears( $year ) {
		$year = $year < 0 ? ceil( $year ) + 1 : floor( $year );
		return floor( $year / 4 ) - floor( $year / 100 ) + floor( $year / 400 );
	}

	/**
	 * @param int $precision One of the TimeValue::PRECISION_... constants
	 *
	 * @throws InvalidArgumentException
	 * @return float number of seconds in one unit of the given precision
	 */
	public function getSecondsForPrecision( $precision ) {
		if ( $precision <= TimeValue::PRECISION_YEAR ) {
			return self::SECONDS_PER_GREGORIAN_YEAR * pow(
					10,
					TimeValue::PRECISION_YEAR - $precision
				);
		}

		switch ( $precision ) {
			case TimeValue::PRECISION_SECOND:
				return 1;
			case TimeValue::PRECISION_MINUTE:
				return 60;
			case TimeValue::PRECISION_HOUR:
				return 3600;
			case TimeValue::PRECISION_DAY:
				return 86400;
			case TimeValue::PRECISION_MONTH:
				return self::SECONDS_PER_GREGORIAN_YEAR / 12;
		}

		throw new InvalidArgumentException( "Unable to get seconds for precision $precision." );
	}

	/**
	 * @param $timestamp
	 * @param $precision
	 *
	 * @return string
	 */
	private function timestampAbsFloor( $timestamp, $precision ) {
		// The year is padded with zeros to have 16 digits
		$timestamp = substr_replace(
			$timestamp,
			str_repeat( '0', $this->MAX_LENGTH_TIMESTAMP - strlen( $timestamp ) ),
			1,
			0
		);
		$numCharsToModify = $this->charsAffectedByPrecision( $precision );
		$timestamp = substr( $timestamp, 0, -$numCharsToModify ) .
			substr( $this->TIMESTAMP_ZERO, -$numCharsToModify );
		return $timestamp;
	}

	/**
	 * @param $timestamp
	 * @param $precision
	 *
	 * @return string
	 */
	private function timestampAbsCeiling( $timestamp, $precision ) {
		// The year is padded with zeros to have 16 digits
		$timestamp = substr_replace(
			$timestamp,
			str_repeat( '0', $this->MAX_LENGTH_TIMESTAMP - strlen( $timestamp ) ),
			1,
			0
		);
		$numCharsToModify = $this->charsAffectedByPrecision( $precision );
		$timestampCeiling = substr( $timestamp, 0, -$numCharsToModify ) .
			substr( $this->HIGHEST_TIMESTAMP, -$numCharsToModify );
		if ( $precision === TimeValue::PRECISION_MONTH ) {
			// The highest day (28-31) depends on the month and the year
			$month = (float)substr(
				$timestamp,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR ),
				2
			);
			$year = (float)substr(
				$timestamp,
				1,
				-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR ) - 1
			);
			$daysInMonth = $this->getDaysInMonth( TimeValue::CALENDAR_GREGORIAN, $month, $year );
			$timestampCeiling = substr( $timestamp, 0, -$numCharsToModify ) .
				$daysInMonth .
				substr( $this->HIGHEST_TIMESTAMP, -$numCharsToModify + 2 );
		}
		return $timestampCeiling;
	}

	/**
	 * @param int $precision
	 *
	 * @return int lowest number of characters in an ISO 8601 timestamp string
	 * that are irrelevant given $precision
	 */
	private function charsAffectedByPrecision( $precision ) {
		$numCharsAffected = 1;
		switch ( $precision ) {
			case TimeValue::PRECISION_MINUTE:
				$numCharsAffected = 3;
				break;
			case TimeValue::PRECISION_HOUR:
				$numCharsAffected = 6;
				break;
			case TimeValue::PRECISION_DAY:
				$numCharsAffected = 9;
				break;
			case TimeValue::PRECISION_MONTH:
				$numCharsAffected = 12;
				break;
			case TimeValue::PRECISION_YEAR:
				$numCharsAffected = 15;
				break;
			case TimeValue::PRECISION_YEAR10:
				$numCharsAffected = 17;
				break;
			case TimeValue::PRECISION_YEAR100:
				$numCharsAffected = 18;
				break;
			case TimeValue::PRECISION_YEAR1K:
				$numCharsAffected = 19;
				break;
			case TimeValue::PRECISION_YEAR10K:
				$numCharsAffected = 20;
				break;
			case TimeValue::PRECISION_YEAR100K:
				$numCharsAffected = 21;
				break;
			case TimeValue::PRECISION_YEAR1M:
				$numCharsAffected = 22;
				break;
			case TimeValue::PRECISION_YEAR10M:
				$numCharsAffected = 23;
				break;
			case TimeValue::PRECISION_YEAR100M:
				$numCharsAffected = 24;
				break;
			case TimeValue::PRECISION_YEAR1G:
				$numCharsAffected = 25;
				break;
		}
		return $numCharsAffected;
	}

}


1		<?php
2
3		namespace DataValues;
4
5		use InvalidArgumentException;
6
7		/**
8		* Logical and mathematical helper functions for calculations with and conversions from TimeValue
9		* objects.
10		*
11		* @since 0.6
12		*
13		* @license GPL-2.0+
14		* @author Thiemo Kreuz
15		*/
16		class TimeValueCalculator {
17
18		/**
19		* Average length of a year in the Gregorian calendar in seconds, calculated via
20		* 365 + 1 / 4 - 1 / 100 + 1 / 400 = 365.2425 days.
21		*/
22		const SECONDS_PER_GREGORIAN_YEAR = 31556952;
23
24		/**
25		* Maximum length for a timestamp.
26		*/
27		private $MAX_LENGTH_TIMESTAMP = 33;
28
29		/**
30		* Lowest positive timestamp.
31		*/
32		private $TIMESTAMP_ZERO = '+0000000000000000-01-01T00:00:00Z';
33
34		/**
35		* Highest positive timestamp strictly earlier than the lowest positive timestamp with
36		* a length of $MAX_LENGTH_TIMESTAMP + 1.
37		*/
38		private $HIGHEST_TIMESTAMP = '+9999999999999999-12-31T23:59:59Z';
39
40		/**
41		* This returns a Unix timestamp from a TimeValue similar to PHP's mk_time() (or strtotime()),
42		* but with no range limitations. Data type is float because PHP's 32 bit integer would
43		* clip in the year 2038.
44		*
45		* @param TimeValue $timeValue
46		*
47		* @return float seconds since 1970-01-01T00:00:00Z
48		*/
49	36	public function getTimestamp( TimeValue $timeValue ) {
50	36	return $this->getSecondsSinceUnixEpoch( $timeValue->getTime(), $timeValue->getTimezone() );
51		}
52
53		/**
54		* Returns the lowest possible Unix timestamp from a TimeValue considering its precision
55		* and its before value. Data type is float because PHP's 32 bit integer would clip in the
56		* year 2038.
57		*
58		* @param TimeValue $timeValue
59		*
60		* @return float seconds since 1970-01-01T00:00:00Z
61		*/
62	1	public function getLowerTimestamp( TimeValue $timeValue ) {
63	1	$precision = $timeValue->getPrecision();
64	1	$timestamp = $timeValue->getTime();
65	1	if ( $timestamp[0] === '+' \|\| $precision >= TimeValue::PRECISION_YEAR ) {
66	1	$timestamp = $this->timestampAbsFloor( $timestamp, $precision );
67		} else {
68		// digits corresponding to [0, PRECISION_YEAR] must be maximized
69		// digits corresponding to [PRECISION_MONTH, PRECISION_SECOND] must be minimized
70	1	$subTimestampLeft = $this->timestampAbsCeiling( $timestamp, $precision );
71	1	$subTimestampLeft = substr(
72	1	$subTimestampLeft,
73	1	0,
74	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
75		);
76	1	$subTimestampRight = $this->timestampAbsFloor( $timestamp, $precision );
77	1	$subTimestampRight = substr(
78	1	$subTimestampRight,
79	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
80		);
81	1	$timestamp = $subTimestampLeft . $subTimestampRight;
82		}
83	1	$unixTimestamp = $this->getSecondsSinceUnixEpoch( $timestamp, $timeValue->getTimezone() );
84	1	$unixTimestamp -= $timeValue->getBefore() * $this->getSecondsForPrecision( $precision );
85	1	return $unixTimestamp;
86		}
87
88		/**
89		* Returns the highest possible Unix timestamp from a TimeValue considering its precision
90		* and its after value. Data type is float because PHP's 32 bit integer would clip in the
91		* year 2038.
92		*
93		* @param TimeValue $timeValue
94		*
95		* @return float seconds since 1970-01-01T00:00:00Z
96		*/
97	1	public function getHigherTimestamp( TimeValue $timeValue ) {
98	1	$precision = $timeValue->getPrecision();
99	1	$timestamp = $timeValue->getTime();
100	1	if ( $timestamp[0] === '+' \|\| $precision >= TimeValue::PRECISION_YEAR ) {
101	1	$timestamp = $this->timestampAbsCeiling( $timestamp, $precision );
102		} else {
103		// digits corresponding to [0, PRECISION_YEAR] must be minimized
104		// digits corresponding to [PRECISION_MONTH, PRECISION_SECOND] must be maximized
105	1	$subTimestampLeft = $this->timestampAbsFloor( $timestamp, $precision );
106	1	$subTimestampLeft = substr(
107	1	$subTimestampLeft,
108	1	0,
109	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
110		);
111	1	$subTimestampRight = $this->timestampAbsCeiling( $timestamp, $precision );
112	1	$subTimestampRight = substr(
113	1	$subTimestampRight,
114	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR )
115		);
116	1	$timestamp = $subTimestampLeft . $subTimestampRight;
117		}
118	1	$unixTimestamp = $this->getSecondsSinceUnixEpoch( $timestamp, $timeValue->getTimezone() );
119	1	$unixTimestamp += $timeValue->getAfter() * $this->getSecondsForPrecision( $precision );
120	1	return $unixTimestamp;
121		}
122
123		/**
124		* @param string $time an ISO 8601 date and time
125		* @param int $timezone offset from UTC in minutes
126		*
127		* @throws InvalidArgumentException
128		* @return float seconds since 1970-01-01T00:00:00Z
129		*/
130	36	private function getSecondsSinceUnixEpoch( $time, $timezone = 0 ) {
131		// Validation is done in TimeValue. As long if we found enough numbers we are fine.
132	36	if ( !preg_match( '/([-+]?\d+)\D+(\d+)\D+(\d+)\D+(\d+)\D+(\d+)\D+(\d+)/', $time, $matches )
133		) {
134		throw new InvalidArgumentException( "Failed to parse time value $time." );
135		}
136	36	list( , $fullYear, $month, $day, $hour, $minute, $second ) = $matches;
137
138		// We use mktime only for the month, day and time calculation. Set the year to the smallest
139		// possible in the 1970-2038 range to be safe, even if it's 1901-2038 since PHP 5.1.0.
140	36	$year = $this->isLeapYear( $fullYear ) ? 1972 : 1970;
141
142	36	$defaultTimezone = date_default_timezone_get();
143	36	date_default_timezone_set( 'UTC' );
144		// With day/month set to 0 mktime would calculate the last day of the previous month/year.
145		// In the context of this calculation we must assume 0 means "start of the month/year".
146	36	$timestamp = mktime( $hour, $minute, $second, max( 1, $month ), max( 1, $day ), $year );
147	36	date_default_timezone_set( $defaultTimezone );
148
149	36	if ( $timestamp === false ) {
150		throw new InvalidArgumentException( "Failed to get epoche from time value $time." );
151		}
152
153	36	$missingYears = ( $fullYear < 0 ? $fullYear + 1 : $fullYear ) - $year;
154	36	$missingLeapDays = $this->getNumberOfLeapYears( $fullYear )
155	36	- $this->getNumberOfLeapYears( $year );
156
157	36	return $timestamp + ( $missingYears * 365 + $missingLeapDays ) * 86400 - $timezone * 60;
158		}
159
160		/**
161		* @param string $calendar only TimeValue::CALENDAR_GREGORIAN is supported
162		* @param float $month
163		* @param float $year
164		*
165		* @throws InvalidArgumentException if $calendar is not supported
166		* @return int
167		*/
168	1	public function getDaysInMonth( $calendar, $month, $year ) {
169	1	if ( $calendar !== TimeValue::CALENDAR_GREGORIAN ) {
170		throw new InvalidArgumentException( "Only Gregorian calendar is supported." );
171		}
172	1	return $month == 2 ? ( $this->isLeapYear( $year ) ? 29 : 28 ) : ( ( $month - 1 ) % 7 % 2 ? 30 : 31 );
173		}
174
175		/**
176		* @param float $year
177		*
178		* @return bool if the year is a leap year in the Gregorian calendar
179		*/
180	70	public function isLeapYear( $year ) {
181	70	$year = $year < 0 ? ceil( $year ) + 1 : floor( $year );
182	70	$isMultipleOf4 = fmod( $year, 4 ) === 0.0;
183	70	$isMultipleOf100 = fmod( $year, 100 ) === 0.0;
184	70	$isMultipleOf400 = fmod( $year, 400 ) === 0.0;
185	70	return $isMultipleOf4 && !$isMultipleOf100 \|\| $isMultipleOf400;
186		}
187
188		/**
189		* @param float $year
190		*
191		* @return float The number of leap years since year 1. To be more precise: The number of
192		* leap days in the range between 31 December of year 1 and 31 December of the given year.
193		*/
194	70	public function getNumberOfLeapYears( $year ) {
195	70	$year = $year < 0 ? ceil( $year ) + 1 : floor( $year );
196	70	return floor( $year / 4 ) - floor( $year / 100 ) + floor( $year / 400 );
197		}
198
199		/**
200		* @param int $precision One of the TimeValue::PRECISION_... constants
201		*
202		* @throws InvalidArgumentException
203		* @return float number of seconds in one unit of the given precision
204		*/
205	10	public function getSecondsForPrecision( $precision ) {
206	10	if ( $precision <= TimeValue::PRECISION_YEAR ) {
207	5	return self::SECONDS_PER_GREGORIAN_YEAR * pow(
208	5	10,
209	5	TimeValue::PRECISION_YEAR - $precision
210		);
211		}
212
213		switch ( $precision ) {
214	7	case TimeValue::PRECISION_SECOND:
215	3	return 1;
216	6	case TimeValue::PRECISION_MINUTE:
217	3	return 60;
218	5	case TimeValue::PRECISION_HOUR:
219	3	return 3600;
220	4	case TimeValue::PRECISION_DAY:
221	3	return 86400;
222	3	case TimeValue::PRECISION_MONTH:
223	3	return self::SECONDS_PER_GREGORIAN_YEAR / 12;
224		}
225
226		throw new InvalidArgumentException( "Unable to get seconds for precision $precision." );
227		}
228
229		/**
230		* @param $timestamp
231		* @param $precision
232		*
233		* @return string
234		*/
235	2	private function timestampAbsFloor( $timestamp, $precision ) {
236		// The year is padded with zeros to have 16 digits
237	2	$timestamp = substr_replace(
238	2	$timestamp,
239	2	str_repeat( '0', $this->MAX_LENGTH_TIMESTAMP - strlen( $timestamp ) ),
240	2	1,
241		0
242		);
243	2	$numCharsToModify = $this->charsAffectedByPrecision( $precision );
244	2	$timestamp = substr( $timestamp, 0, -$numCharsToModify ) .
245	2	substr( $this->TIMESTAMP_ZERO, -$numCharsToModify );
246	2	return $timestamp;
247		}
248
249		/**
250		* @param $timestamp
251		* @param $precision
252		*
253		* @return string
254		*/
255	2	private function timestampAbsCeiling( $timestamp, $precision ) {
256		// The year is padded with zeros to have 16 digits
257	2	$timestamp = substr_replace(
258	2	$timestamp,
259	2	str_repeat( '0', $this->MAX_LENGTH_TIMESTAMP - strlen( $timestamp ) ),
260	2	1,
261		0
262		);
263	2	$numCharsToModify = $this->charsAffectedByPrecision( $precision );
264	2	$timestampCeiling = substr( $timestamp, 0, -$numCharsToModify ) .
265	2	substr( $this->HIGHEST_TIMESTAMP, -$numCharsToModify );
266	2	if ( $precision === TimeValue::PRECISION_MONTH ) {
267		// The highest day (28-31) depends on the month and the year
268	1	$month = (float)substr(
269	1	$timestamp,
270	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR ),
271	1	2
272		);
273	1	$year = (float)substr(
274	1	$timestamp,
275	1	1,
276	1	-$this->charsAffectedByPrecision( TimeValue::PRECISION_YEAR ) - 1
277		);
278	1	$daysInMonth = $this->getDaysInMonth( TimeValue::CALENDAR_GREGORIAN, $month, $year );
279	1	$timestampCeiling = substr( $timestamp, 0, -$numCharsToModify ) .
280	1	$daysInMonth .
281	1	substr( $this->HIGHEST_TIMESTAMP, -$numCharsToModify + 2 );
282		}
283	2	return $timestampCeiling;
284		}
285
286		/**
287		* @param int $precision
288		*
289		* @return int lowest number of characters in an ISO 8601 timestamp string
290		* that are irrelevant given $precision
291		*/
292	2	private function charsAffectedByPrecision( $precision ) {
293	2	$numCharsAffected = 1;
294		switch ( $precision ) {
295	2	case TimeValue::PRECISION_MINUTE:
296	2	$numCharsAffected = 3;
297	2	break;
298	2	case TimeValue::PRECISION_HOUR:
299	2	$numCharsAffected = 6;
300	2	break;
301	2	case TimeValue::PRECISION_DAY:
302	2	$numCharsAffected = 9;
303	2	break;
304	2	case TimeValue::PRECISION_MONTH:
305	2	$numCharsAffected = 12;
306	2	break;
307	2	case TimeValue::PRECISION_YEAR:
308	2	$numCharsAffected = 15;
309	2	break;
310	2	case TimeValue::PRECISION_YEAR10:
311	2	$numCharsAffected = 17;
312	2	break;
313	2	case TimeValue::PRECISION_YEAR100:
314	2	$numCharsAffected = 18;
315	2	break;
316	2	case TimeValue::PRECISION_YEAR1K:
317	2	$numCharsAffected = 19;
318	2	break;
319	2	case TimeValue::PRECISION_YEAR10K:
320	2	$numCharsAffected = 20;
321	2	break;
322	2	case TimeValue::PRECISION_YEAR100K:
323	2	$numCharsAffected = 21;
324	2	break;
325	2	case TimeValue::PRECISION_YEAR1M:
326	2	$numCharsAffected = 22;
327	2	break;
328	2	case TimeValue::PRECISION_YEAR10M:
329	2	$numCharsAffected = 23;
330	2	break;
331	2	case TimeValue::PRECISION_YEAR100M:
332	2	$numCharsAffected = 24;
333	2	break;
334	2	case TimeValue::PRECISION_YEAR1G:
335	2	$numCharsAffected = 25;
336	2	break;
337		}
338	2	return $numCharsAffected;
339		}
340
341		}
342

DataValues / Time

Pull Request — master (#140)

TimeValueCalculator::charsAffectedByPrecision() C

Complexity

Size

Duplication

Code Coverage

Importance

How to fix Complexity

Long Method

Duplication Side-by-Side

Filter issues like