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PeriodService.php
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PeriodService.php
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<?php
namespace JhFlexiTime\Service;
use JhFlexiTime\Options\ModuleOptions;
use JhFlexiTime\DateTime\DateTime;
/**
* Calculate hours in various periods
*
* Class PeriodService
* @package JhFlexiTime\Service
* @author Aydin Hassan <aydin@wearejh.com>
*/
class PeriodService implements PeriodServiceInterface
{
/**
* @var \JhFlexiTime\Options\ModuleOptions
*/
protected $options;
/**
* @param ModuleOptions $options
*/
public function __construct(ModuleOptions $options)
{
$this->options = $options;
}
/**
* Get total hours in period, using config
* to determine how many hours to count in each day
* exclude weekends
*
* @param \DatePeriod $period
* @return int
*/
protected function getTotalHoursInPeriod(\DatePeriod $period)
{
$count = 0;
foreach ($period as $day) {
//exclude weekends
if ($day->format('N') < 6) {
$count++;
}
}
$monthTotalHours = $count * $this->options->getHoursInDay();
//round to 2 decimal places
return (float) number_format($monthTotalHours, 2, '.', '');
}
/**
* @param DateTime $start
* @param DateTime $end
*
* @return int
*/
public function getTotalHoursBetweenDates(DateTime $start, DateTime $end)
{
$period = new \DatePeriod(
new DateTime(sprintf('%s 00:00:00', $start->format('d-m-Y'))),
new \DateInterval('P1D'),
new DateTime(sprintf('%s 23:59:59', $end->format('d-m-Y')))
);
return $this->getTotalHoursInPeriod($period);
}
/**
* Get total hours in a given month
*
* @param DateTime $month
* @return float
*/
public function getTotalHoursInMonth(DateTime $month)
{
$period = new \DatePeriod(
new DateTime(sprintf('first day of %s 00:00:00', $month->format('F Y'))),
new \DateInterval('P1D'),
new DateTime(sprintf('last day of %s 23:59:59', $month->format('F Y')))
);
return $this->getTotalHoursInPeriod($period);
}
/**
* Calculate the hours between to dates
* return something like 7.5, 8.25
*
* Minus the lunch duration from the total,
* so only return total working hours
*
* @param DateTime $start
* @param DateTime $end
* @throws \InvalidArgumentException
* @return float hour diff
*/
public function calculateHourDiff(DateTime $start, DateTime $end)
{
if ($end <= $start) {
throw new \InvalidArgumentException("End time should be after start time");
}
$lunchDuration = $this->options->getLunchDuration();
$diff = $start->diff($end);
$hours = $diff->format('%r%h');
$minutes = $diff->format('%i') / 60;
$totalHours = ($hours + $minutes) - $lunchDuration;
//round to 2 decimal places
return number_format($totalHours, 2, '.', '');
}
/**
* Get the remaining hours in a month
* using the config as a base for how many hours
* should be worked per day
*
* @param DateTime $today
* @return int
*/
public function getRemainingHoursInMonth(DateTime $today)
{
$date = clone $today;
$lastDay = clone $today;
$date->modify("+1 day");
$lastDay->modify('last day of this month');
$lastDay->modify("+1 day"); //hack to include the last day in the period
$period = new \DatePeriod($date, new \DateInterval('P1D'), $lastDay);
return $this->getTotalHoursInPeriod($period);
}
/**
* Get an array of all the dates of the week the given date
* is in
*
* @param DateTime $date
* @return DateTime[]
* @throws \Exception
*/
public function getDaysInWeek(DateTime $date)
{
$weeks = $this->getWeeksInMonth($date);
foreach ($weeks as $week) {
$firstDayOfWeek = reset($week);
$lastDayOfWeek = end($week);
if ($date >= $firstDayOfWeek && $date <= $lastDayOfWeek) {
return $week;
}
}
throw new \Exception("Day is not present in returned month");
}
/**
* Get an array of the first and last day of
* the week the given day is in
*
* @param DateTime $date
* @return array
* @throws \Exception
*/
public function getFirstAndLastDayOfWeek(DateTime $date)
{
$week = $this->getDaysInWeek($date);
$firstDayOfWeek = reset($week);
$lastDayOfWeek = end($week);
return ['firstDay' => $firstDayOfWeek, 'lastDay' => $lastDayOfWeek];
}
/**
* Get the week which this date is in, and count the number
* of non-working days
*
* @param DateTime $date
* @return int
*/
public function getNumWorkingDaysInWeek(DateTime $date)
{
$week = $this->getDaysInWeek($date);
$week = $this->removeNonWorkingDays($week);
return count($week);
}
/**
* Remove any non-working days
*
* @param DateTime[] $dates
* @return DateTime[]
*/
public function removeNonWorkingDays(array $dates)
{
return array_filter(
$dates,
function (DateTime $day) {
return $day->format('N') < 6;
}
);
}
/**
* Get an array of weeks, with each day of the week in it
*
* @param DateTime $date
* @return array
*/
public function getWeeksInMonth(DateTime $date)
{
$tmpDatePeriod = new \DatePeriod(
new DateTime(sprintf('first day of %s', $date->format('F Y'))),
new \DateInterval('P1D'),
new DateTime(sprintf('last day of %s 23:59:59', $date->format('F Y')))
);
//convert DateTime to JhDateTime
$datePeriod = [];
foreach ($tmpDatePeriod as $date) {
$jhDate = new DateTime();
$jhDate->setTimestamp($date->getTimestamp());
$datePeriod[] = $jhDate;
}
$weeks = [];
$weekCounter = 0;
foreach ($datePeriod as $day) {
$dayNum = $day->format('N');
if (!isset($weeks[$weekCounter])) {
$weeks[$weekCounter] = [$day];
} else {
$weeks[$weekCounter][] = $day;
}
if ($dayNum == 7) {
$weekCounter++;
}
}
return $weeks;
}
/**
* @param DateTime $dateA
* @param DateTime $dateB
* @return bool
*/
public function isDateAfterDay(DateTime $dateA, DateTime $dateB)
{
$date = clone $dateB;
$date->modify("23:59:59");
return $dateA > $date;
}
}