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Diffstat (limited to 'app/Model/Timetable.php')
-rw-r--r-- | app/Model/Timetable.php | 358 |
1 files changed, 358 insertions, 0 deletions
diff --git a/app/Model/Timetable.php b/app/Model/Timetable.php new file mode 100644 index 00000000..da2ec10c --- /dev/null +++ b/app/Model/Timetable.php @@ -0,0 +1,358 @@ +<?php + +namespace Model; + +use DateTime; +use DateInterval; + +/** + * Timetable + * + * @package model + * @author Frederic Guillot + */ +class Timetable extends Base +{ + /** + * User time slots + * + * @access private + * @var array + */ + private $day; + private $week; + private $overtime; + private $timeoff; + + /** + * Get a set of events by using the intersection between the timetable and the time tracking data + * + * @access public + * @param integer $user_id + * @param array $events Time tracking data + * @param string $start ISO8601 date + * @param string $end ISO8601 date + * @return array + */ + public function calculateEventsIntersect($user_id, array $events, $start, $end) + { + $start_dt = new DateTime($start); + $start_dt->setTime(0, 0); + + $end_dt = new DateTime($end); + $end_dt->setTime(23, 59); + + $timetable = $this->calculate($user_id, $start_dt, $end_dt); + + // The user has no timetable + if (empty($this->week)) { + return $events; + } + + $results = array(); + + foreach ($events as $event) { + $results = array_merge($results, $this->calculateEventIntersect($event, $timetable)); + } + + return $results; + } + + /** + * Get a serie of events based on the timetable and the provided event + * + * @access public + * @param integer $user_id + * @param array $events Time tracking data + * @param string $start ISO8601 date + * @param string $end ISO8601 date + * @return array + */ + public function calculateEventIntersect(array $event, array $timetable) + { + $events = array(); + + foreach ($timetable as $slot) { + + $start_ts = $slot[0]->getTimestamp(); + $end_ts = $slot[1]->getTimestamp(); + + if ($start_ts > $event['end']) { + break; + } + + if ($event['start'] <= $start_ts) { + $event['start'] = $start_ts; + } + + if ($event['start'] >= $start_ts && $event['start'] <= $end_ts) { + + if ($event['end'] >= $end_ts) { + $events[] = array_merge($event, array('end' => $end_ts)); + } + else { + $events[] = $event; + break; + } + } + } + + return $events; + } + + /** + * Calculate effective worked hours by taking into consideration the timetable + * + * @access public + * @param integer $user_id + * @param \DateTime $start + * @param \DateTime $end + * @return float + */ + public function calculateEffectiveDuration($user_id, DateTime $start, DateTime $end) + { + $end_timetable = clone($end); + $end_timetable->setTime(23, 59); + + $timetable = $this->calculate($user_id, $start, $end_timetable); + $found_start = false; + $hours = 0; + + // The user has no timetable + if (empty($this->week)) { + return $this->dateParser->getHours($start, $end); + } + + foreach ($timetable as $slot) { + + $isStartSlot = $this->dateParser->withinDateRange($start, $slot[0], $slot[1]); + $isEndSlot = $this->dateParser->withinDateRange($end, $slot[0], $slot[1]); + + // Start and end are within the same time slot + if ($isStartSlot && $isEndSlot) { + return $this->dateParser->getHours($start, $end); + } + + // We found the start slot + if (! $found_start && $isStartSlot) { + $found_start = true; + $hours = $this->dateParser->getHours($start, $slot[1]); + } + else if ($found_start) { + + // We found the end slot + if ($isEndSlot) { + $hours += $this->dateParser->getHours($slot[0], $end); + break; + } + else { + + // Sum hours of the intermediate time slots + $hours += $this->dateParser->getHours($slot[0], $slot[1]); + } + } + } + + // The start date was not found in regular hours so we get the nearest time slot + if (! empty($timetable) && ! $found_start) { + $slot = $this->findClosestTimeSlot($start, $timetable); + + if ($start < $slot[0]) { + return $this->calculateEffectiveDuration($user_id, $slot[0], $end); + } + } + + return $hours; + } + + /** + * Find the nearest time slot + * + * @access public + * @param DateTime $date + * @param array $timetable + * @return array + */ + public function findClosestTimeSlot(DateTime $date, array $timetable) + { + $values = array(); + + foreach ($timetable as $slot) { + $t1 = abs($slot[0]->getTimestamp() - $date->getTimestamp()); + $t2 = abs($slot[1]->getTimestamp() - $date->getTimestamp()); + + $values[] = min($t1, $t2); + } + + asort($values); + return $timetable[key($values)]; + } + + /** + * Get the timetable for a user for a given date range + * + * @access public + * @param integer $user_id + * @param \DateTime $start + * @param \DateTime $end + * @return array + */ + public function calculate($user_id, DateTime $start, DateTime $end) + { + $timetable = array(); + + $this->day = $this->timetableDay->getByUser($user_id); + $this->week = $this->timetableWeek->getByUser($user_id); + $this->overtime = $this->timetableExtra->getByUserAndDate($user_id, $start->format('Y-m-d'), $end->format('Y-m-d')); + $this->timeoff = $this->timetableOff->getByUserAndDate($user_id, $start->format('Y-m-d'), $end->format('Y-m-d')); + + for ($today = clone($start); $today <= $end; $today->add(new DateInterval('P1D'))) { + $week_day = $today->format('N'); + $timetable = array_merge($timetable, $this->getWeekSlots($today, $week_day)); + $timetable = array_merge($timetable, $this->getOvertimeSlots($today, $week_day)); + } + + return $timetable; + } + + /** + * Return worked time slots for the given day + * + * @access public + * @param \DateTime $today + * @param string $week_day + * @return array + */ + public function getWeekSlots(DateTime $today, $week_day) + { + $slots = array(); + $dayoff = $this->getDayOff($today); + + if (! empty($dayoff) && $dayoff['all_day'] == 1) { + return array(); + } + + foreach ($this->week as $slot) { + if ($week_day == $slot['day']) { + $slots = array_merge($slots, $this->getDayWorkSlots($slot, $dayoff, $today)); + } + } + + return $slots; + } + + /** + * Get the overtime time slots for the given day + * + * @access public + * @param \DateTime $today + * @param string $week_day + * @return array + */ + public function getOvertimeSlots(DateTime $today, $week_day) + { + $slots = array(); + + foreach ($this->overtime as $slot) { + + $day = new DateTime($slot['date']); + + if ($week_day == $day->format('N')) { + + if ($slot['all_day'] == 1) { + $slots = array_merge($slots, $this->getDaySlots($today)); + } + else { + $slots[] = $this->getTimeSlot($slot, $day); + } + } + } + + return $slots; + } + + /** + * Get worked time slots and remove time off + * + * @access public + * @param array $slot + * @param array $dayoff + * @param \DateTime $today + * @return array + */ + public function getDayWorkSlots(array $slot, array $dayoff, DateTime $today) + { + $slots = array(); + + if (! empty($dayoff) && $dayoff['start'] < $slot['end']) { + + if ($dayoff['start'] > $slot['start']) { + $slots[] = $this->getTimeSlot(array('end' => $dayoff['start']) + $slot, $today); + } + + if ($dayoff['end'] < $slot['end']) { + $slots[] = $this->getTimeSlot(array('start' => $dayoff['end']) + $slot, $today); + } + } + else { + $slots[] = $this->getTimeSlot($slot, $today); + } + + return $slots; + } + + /** + * Get regular day work time slots + * + * @access public + * @param \DateTime $today + * @return array + */ + public function getDaySlots(DateTime $today) + { + $slots = array(); + + foreach ($this->day as $day) { + $slots[] = $this->getTimeSlot($day, $today); + } + + return $slots; + } + + /** + * Get the start and end time slot for a given day + * + * @access public + * @param array $slot + * @param \DateTime $today + * @return array + */ + public function getTimeSlot(array $slot, DateTime $today) + { + $date = $today->format('Y-m-d'); + + return array( + new DateTime($date.' '.$slot['start']), + new DateTime($date.' '.$slot['end']), + ); + } + + /** + * Return day off time slot + * + * @access public + * @param \DateTime $today + * @return array + */ + public function getDayOff(DateTime $today) + { + foreach ($this->timeoff as $day) { + + if ($day['date'] === $today->format('Y-m-d')) { + return $day; + } + } + + return array(); + } +} |