accessibilitymanager.php

<?php
 
namespace Bitrix\Calendar\Rooms;
 
use Bitrix\Main\Type\DateTime;
 
class AccessibilityManager
{
    private const TYPE = 'location';
    
    private ?string $dateFrom = null;
    private ?string $dateTo = null;
    private ?array $datesRange = null;
    private ?array $locationList = null;
    
    protected function __construct()
    {
    }
    
    public static function createInstance(): AccessibilityManager
    {
        return new self();
    }
    
    public function setLocationList(?array $locationList = []): AccessibilityManager
    {
        $this->locationList = $locationList;
        
        return $this;
    }
    
    public function setDateFrom(?string $dateFrom = ''): AccessibilityManager
    {
        $this->dateFrom = $dateFrom;
        
        return $this;
    }
    
    public function setDateTo(?string $dateTo = ''): AccessibilityManager
    {
        $this->dateTo = $dateTo;
        
        return $this;
    }
    
    public function setDatesRange(?array $range = []): AccessibilityManager
    {
        $this->datesRange = $range;
        
        return $this;
    }
    
    public function getLocationList(): ?array
    {
        return $this->locationList;
    }
    
    public function getDateFrom(): ?string
    {
        return $this->dateFrom;
    }
    
    public function getDateTo(): ?string
    {
        return $this->dateTo;
    }
    
    public function getDatesRange(): ?array
    {
        return $this->datesRange;
    }
    
    public static function checkAccessibility(string $locationId = '', array $params = []): bool
    {
        $location = Util::parseLocation($locationId);
        
        $res = true;
        if ($location['room_id'] || $location['mrid'])
        {
            $dateFrom = DateTime::createFromTimestamp(\CCalendar::TimestampUTC($params['fields']['DATE_FROM']))
                ->setTimeZone(new \DateTimeZone('UTC'));
            $dateTo = DateTime::createFromTimestamp(\CCalendar::TimestampUTC($params['fields']['DATE_TO']))
                ->setTimeZone(new \DateTimeZone('UTC'));
 
            $fromTs = \Bitrix\Calendar\Util::getDateTimestampUtc($dateFrom, $params['fields']['TZ_FROM']);
            $toTs = \Bitrix\Calendar\Util::getDateTimestampUtc($dateTo, $params['fields']['TZ_FROM']);
            if ($params['fields']['SKIP_TIME'])
            {
                $toTs += \CCalendar::GetDayLen();
            }
            
            $eventId = (int)$params['fields']['ID'];
            
            $from = \Bitrix\Calendar\Util::formatDateTimestampUTC($fromTs);
            $to = \Bitrix\Calendar\Util::formatDateTimestampUTC($toTs);
            
            if ($location['mrid'])
            {
                $meetingRoomRes = IBlockMeetingRoom::getAccessibilityForMeetingRoom([
                    'allowReserveMeeting' => true,
                    'id' => $location['mrid'],
                    'from' => \CCalendar::Date(
                        $fromTs - \CCalendar::DAY_LENGTH,
                        false
                    ),
                    'to' => \CCalendar::Date(
                        $toTs + \CCalendar::DAY_LENGTH,
                        false
                    ),
                    'curEventId' => $location['mrevid'],
                ]);
                
                foreach ($meetingRoomRes as $entry)
                {
                    if ((int)$entry['ID'] !== (int)$location['mrevid'])
                    {
                        $entryFromTs = \CCalendar::Timestamp($entry['DT_FROM']);
                        $entryToTs = \CCalendar::Timestamp($entry['DT_TO']);
                        
                        if ($entryFromTs < $toTs && $entryToTs > $fromTs)
                        {
                            $res = false;
                            break;
                        }
                    }
                }
            }
            elseif ($location['room_id'])
            {
                $entries = self::getRoomAccessibility([$location['room_id']], $from, $to);
                foreach ($entries as $entry)
                {
                    if ((int)$entry['ID'] !== (int)$location['room_event_id']
                        && (int)$entry['PARENT_ID'] !== $eventId)
                    {
                        $entryFromTs = \Bitrix\Calendar\Util::getDateTimestampUtc(new DateTime($entry['DATE_FROM']), $entry['TZ_FROM']);
                        $entryToTs = \Bitrix\Calendar\Util::getDateTimestampUtc(new DateTime($entry['DATE_TO']), $entry['TZ_FROM']);
                        if ($entry['DT_SKIP_TIME'] === 'Y')
                        {
                            $entryToTs += \CCalendar::GetDayLen();
                        }
 
                        if ($entryFromTs < $toTs && $entryToTs > $fromTs)
                        {
                            $res = false;
                            break;
                        }
                    }
                }
            }
        }
        
        return $res;
    }
    
    public static function getRoomAccessibility(array $roomIds, $from, $to): array
    {
        return \CCalendarEvent::GetList([
            'arFilter' => [
                'FROM_LIMIT' => $from,
                'TO_LIMIT' => $to,
                'CAL_TYPE' => self::TYPE,
                'ACTIVE_SECTION' => 'Y',
                'SECTION' => $roomIds,
            ],
            'parseRecursion' => true,
            'fetchSection' => true,
            'setDefaultLimit' => false,
        ]);
    }
 
    public function getLocationAccessibility(): array
    {
        if (!is_array($this->datesRange) || !is_array($this->locationList) || empty($this->datesRange))
        {
            return [];
        }
 
        $roomIds = array_map(static fn($room) => (int)$room['ID'], $this->locationList);
        $from = $this->datesRange[0];
        $to = $this->datesRange[count($this->datesRange) - 1];
 
        $entries = self::getRoomAccessibility($roomIds, $from, $to);
 
        $result = [];
 
        foreach ($this->datesRange as $date)
        {
            $result[$date] = [];
        }
 
        foreach ($entries as $entry)
        {
            $roomId = (int)$entry['SECTION_ID'];
 
            $dateStart = new DateTime($entry['DATE_FROM']);
            $dateEnd = new DateTime($entry['DATE_TO']);
            while ($dateStart->getTimestamp() <= $dateEnd->getTimestamp())
            {
                $date = $dateStart->format('d.m.Y');
                $dateStart->add('1 day');
                if (!isset($result[$date]))
                {
                    continue;
                }
 
                $result[$date][$roomId] ??= [];
                $result[$date][$roomId][] = $entry;
            }
        }
 
        return $result;
    }
}