/**
* Find array of time slots available for booking
* for given date.
*
* @access private
* @param string $date
* @return array
*/
private function _findAvailableTime($date)
{
$result = array();
$dayofweek = date('w', strtotime($date)) + 1;
// 1-7
$is_date_today = $date == date('Y-m-d', current_time('timestamp'));
$current_time = date('H:i:s', ceil(current_time('timestamp') / AB_BookingConfiguration::getTimeSlotLength()) * AB_BookingConfiguration::getTimeSlotLength());
foreach ($this->staff_working_hours as $staff_id => $hours) {
if (isset($hours[$dayofweek]) && $this->isWorkingDay($date, $staff_id)) {
// Find intersection between working and requested hours
//(excluding time slots in the past).
$working_start_time = $is_date_today && $current_time > $hours[$dayofweek]['start_time'] ? $current_time : $hours[$dayofweek]['start_time'];
$intersection = $this->_findIntersection($this->_strToTime($working_start_time), $this->_strToTime($hours[$dayofweek]['end_time']), $this->_strToTime($this->_userData->getRequestedTimeFrom()), $this->_strToTime($this->_userData->getRequestedTimeTo()));
if (is_array($intersection) && !array_key_exists('start', $intersection)) {
$intersections = $intersection;
foreach ($intersections as $intersection) {
if ($intersection && $this->service_duration <= $intersection['end'] - $intersection['start']) {
// Initialize time frames.
$timeframes = array(array('start' => $intersection['start'], 'end' => $intersection['end'], 'staff_id' => $staff_id));
// Remove breaks from the time frames.
foreach ($hours[$dayofweek]['breaks'] as $break) {
$timeframes = $this->_removeTimePeriod($timeframes, $this->_strToTime($break['start']), $this->_strToTime($break['end']));
}
// Remove bookings from the time frames.
$bookings = isset($this->bookings[$staff_id]) ? $this->bookings[$staff_id] : array();
foreach ($bookings as $booking) {
$bookingStart = new DateTime($booking->start_date);
if ($date == $bookingStart->format('Y-m-d')) {
$bookingEnd = new DateTime($booking->end_date);
$booking_start = $bookingStart->format('U') % (24 * 60 * 60);
$booking_end = $bookingEnd->format('U') % (24 * 60 * 60);
$timeframes = $this->_removeTimePeriod($timeframes, $booking_start, $booking_end);
}
}
$result = array_merge($result, $timeframes);
}
}
} else {
if ($intersection && $this->service_duration <= $intersection['end'] - $intersection['start']) {
// Initialize time frames.
$timeframes = array(array('start' => $intersection['start'], 'end' => $intersection['end'], 'staff_id' => $staff_id));
// Remove breaks from the time frames.
foreach ($hours[$dayofweek]['breaks'] as $break) {
$timeframes = $this->_removeTimePeriod($timeframes, $this->_strToTime($break['start']), $this->_strToTime($break['end']));
}
// Remove bookings from the time frames.
$bookings = isset($this->bookings[$staff_id]) ? $this->bookings[$staff_id] : array();
foreach ($bookings as $booking) {
$bookingStart = new DateTime($booking->start_date);
if ($date == $bookingStart->format('Y-m-d')) {
$bookingEnd = new DateTime($booking->end_date);
$booking_start = $bookingStart->format('U') % (24 * 60 * 60);
$booking_end = $bookingEnd->format('U') % (24 * 60 * 60);
$timeframes = $this->_removeTimePeriod($timeframes, $booking_start, $booking_end);
}
}
$result = array_merge($result, $timeframes);
}
}
}
}
usort($result, create_function('$a, $b', 'return $a[\'start\'] - $b[\'start\'];'));
return $result;
}
