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<?php
/**
Copyright 2011-2014 Nick Korbel
This file is part of Booked SchedulerBooked SchedulereIt is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later versBooked SchedulerduleIt is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
alBooked SchedulercheduleIt. If not, see <http://www.gnu.org/licenses/>.
*/
interface IResourceAvailabilityStrategy
{
/**
* @param Date $startDate
* @param Date $endDate
* @return array|IReservedItemView[]
*/
public function GetItemsBetween(Date $startDate, Date $endDate);
}
class ResourceReservationAvailability implements IResourceAvailabilityStrategy
{
/**
* @var IReservationViewRepository
*/
protected $_repository;
public function __construct(IReservationViewRepository $repository)
{
$this->_repository = $repository;
}
public function GetItemsBetween(Date $startDate, Date $endDate)
{
return $this->_repository->GetReservationList($startDate, $endDate);
}
}
class ResourceBlackoutAvailability implements IResourceAvailabilityStrategy
{
/**
* @var IReservationViewRepository
*/
protected $_repository;
public function __construct(IReservationViewRepository $repository)
{
$this->_repository = $repository;
}
public function GetItemsBetween(Date $startDate, Date $endDate)
{
return $this->_repository->GetBlackoutsWithin(new DateRange($startDate, $endDate));
}
}
class ResourceAvailabilityRule implements IReservationValidationRule
{
/**
* @var IResourceAvailabilityStrategy
*/
protected $strategy;
/**
* @var string
*/
protected $timezone;
public function __construct(IResourceAvailabilityStrategy $strategy, $timezone)
{
$this->strategy = $strategy;
$this->timezone = $timezone;
}
/**
* @param ReservationSeries $reservationSeries
* @return ReservationRuleResult
*/
public function Validate($reservationSeries)
{
$conflicts = array();
$reservations = $reservationSeries->Instances();
$bufferTime = $reservationSeries->MaxBufferTime();
$keyedResources = array();
foreach ($reservationSeries->AllResources() as $resource)
{
$keyedResources[$resource->GetId()] = $resource;
}
/** @var Reservation $reservation */
foreach ($reservations as $reservation)
{
Log::Debug("Checking for reservation conflicts, reference number %s", $reservation->ReferenceNumber());
$startDate = $reservation->StartDate();
$endDate = $reservation->EndDate();
if ($bufferTime != null && !$reservationSeries->BookedBy()->IsAdmin)
{
$startDate = $startDate->SubtractInterval($bufferTime);
$endDate = $endDate->AddInterval($bufferTime);
}
$existingItems = $this->strategy->GetItemsBetween($startDate, $endDate);
/** @var IReservedItemView $existingItem */
foreach ($existingItems as $existingItem)
{
if (
($bufferTime == null || $reservationSeries->BookedBy()->IsAdmin) &&
($existingItem->GetStartDate()->Equals($reservation->EndDate()) ||
$existingItem->GetEndDate()->Equals($reservation->StartDate()))
)
{
continue;
}
if ($this->IsInConflict($reservation, $reservationSeries, $existingItem, $keyedResources))
{
Log::Debug("Reference number %s conflicts with existing %s with id %s", $reservation->ReferenceNumber(), get_class($existingItem), $existingItem->GetId());
array_push($conflicts, $existingItem);
}
}
}
$thereAreConflicts = count($conflicts) > 0;
if ($thereAreConflicts)
{
return new ReservationRuleResult(false, $this->GetErrorString($conflicts));
}
return new ReservationRuleResult();
}
/**
* @param Reservation $instance
* @param ReservationSeries $series
* @param IReservedItemView $existingItem
* @param BookableResource[] $keyedResources
* @return bool
*/
protected function IsInConflict(Reservation $instance, ReservationSeries $series, IReservedItemView $existingItem, $keyedResources)
{
if (array_key_exists($existingItem->GetResourceId(), $keyedResources))
{
return $existingItem->BufferedTimes()->Overlaps($instance->Duration());
}
return false;
}
/**
* @param array|IReservedItemView[] $conflicts
* @return string
*/
protected function GetErrorString($conflicts)
{
$errorString = new StringBuilder();
$errorString->Append(Resources::GetInstance()->GetString('ConflictingReservationDates'));
$errorString->Append("\n");
$format = Resources::GetInstance()->GetDateFormat(ResourceKeys::DATE_GENERAL);
$dates = array();
/** @var IReservedItemView $conflict */
foreach($conflicts as $conflict)
{
$dates[] = sprintf('%s - %s', $conflict->GetStartDate()->ToTimezone($this->timezone)->Format($format), $conflict->GetResourceName());
}
$uniqueDates = array_unique($dates);
sort($uniqueDates);
foreach ($uniqueDates as $date)
{
$errorString->Append($date);
$errorString->Append("\n");
}
return $errorString->ToString();
}
}