Garethp / php-ews

src/CalendarAPI.php

<?php

namespace garethp\ews;

use DateTime;
use garethp\ews\API\Enumeration;
use garethp\ews\API\Exception\ExchangeException;
use garethp\ews\API\Message\FreeBusyResponseType;
use garethp\ews\API\Type;
use garethp\ews\API\Type\CalendarItemType;

/**
 * An API end point for Calendar items
 *
 * Class API
 * @package garethp\ews\Calendar
 */
class CalendarAPI extends API
{
    /**
     * @var Type\BaseFolderIdType
     */
    protected $folderId;

    /**
     * Pick a Calendar based on it's name
     *
     * @param string|null $displayName
     * @return $this
     */
    public function pickCalendar($displayName = null)
    {
        if ($displayName == 'default.calendar' || $displayName == null) {
            $this->folderId = $this->getDistinguishedFolderId('calendar');
        } else {
            $this->folderId = $this->getFolderByDisplayName($displayName, 'calendar')->getFolderId();
        }

        return $this;
    }

    /**
     * @return Type\BaseFolderIdType
     */
    public function getFolderId()
    {
        if ($this->folderId === null) {
            $this->pickCalendar();
        }

        return $this->folderId;
    }

    /**
     * @param Type\BaseFolderIdType $folderId
     * @return $this
     */
    public function setFolderId($folderId)
    {
        $this->folderId = $folderId;

        return $this;
    }

    /**
     * Create one or more calendar items
     *
     * @param $items CalendarItemType[]|CalendarItemType|array or more calendar items to create
     * @param $options array Options to merge in to the request
     * @return Type\ItemIdType[]
     */
    public function createCalendarItems($items, $options = array())
    {
        $items = Utilities\ensureIsArray($items, true);
        $item = array('CalendarItem' => $items);
        $defaultOptions = array(
            'SendMeetingInvitations' => Enumeration\CalendarItemCreateOrDeleteOperationType::SEND_TO_NONE,
            'SavedItemFolderId' => $this->getFolderId()->toArray(true)
        );

        $options = array_replace_recursive($defaultOptions, $options);

        $items = $this->createItems($item, $options);
        return Utilities\ensureIsArray($items);
    }

    /**
     * Get a list of calendar items between two dates/times
     *
     * @param string|DateTime $start
     * @param string|DateTime $end
     * @param array $options
     * @return CalendarItemType[]|Type\FindItemParentType
     */
    public function getCalendarItems($start = '12:00 AM', $end = '11:59 PM', $options = array())
    {
        $start = Utilities\ensureIsDateTime($start);
        $end = Utilities\ensureIsDateTime($end);

        $request = [
            'Traversal' => 'Shallow',
            'ItemShape' => [
                'BaseShape' => 'AllProperties'
            ],
            'CalendarView' => [
                'MaxEntriesReturned' => 100,
                'StartDate' => $start->format('c'),
                'EndDate' => $end->format('c')
            ],
            'ParentFolderIds' => $this->getFolderId()->toArray(true)
        ];

        $request = array_replace_recursive($request, $options);

        $request = Type::buildFromArray($request);
        $response = $this->getClient()->FindItem($request);
        $items = $response;

        return $items;
    }

    /**
     * @param $id
     * @param $changeKey
     * @param array $options
     * @return Type\CalendarItemType
     */
    public function getCalendarItem($id, $changeKey, $options = [])
    {
        return $this->getItem(['Id' => $id, 'ChangeKey' => $changeKey], $options);
    }

    /**
     * Updates a calendar item with changes
     *
     * @param $itemId Type\ItemIdType
     * @param array $changes
     * @param array $options
     * @return Type\CalendarItemType[]
     */
    public function updateCalendarItem(Type\ItemIdType $itemId, $changes, $options = array())
    {
        //Create the request
        $request = [
            'ItemChange' => [
                'ItemId' => $itemId->toArray(),
                'Updates' => API\ItemUpdateBuilder::buildUpdateItemChanges('CalendarItem', 'calendar', $changes)
            ]
        ];

        $defaultOptions = [
            'SendMeetingInvitationsOrCancellations' => 'SendToNone'
        ];

        $options = array_replace_recursive($defaultOptions, $options);
        $items = $this->updateItems($request, $options)->getCalendarItem();
        return Utilities\ensureIsArray($items);
    }

    /**
     * @param Type\ItemIdType $itemId
     * @param array $options
     * @return bool
     */
    public function deleteCalendarItem(Type\ItemIdType $itemId, $options = array())
    {
        $defaultOptions = array(
            'SendMeetingCancellations' => 'SendToNone'
        );

        $options = array_replace_recursive($defaultOptions, $options);
        return $this->deleteItems($itemId, $options);
    }

    /**
     * @param string $start
     * @param string $end
     * @param array $options
     */
    public function deleteAllCalendarItems($start = '12:00 AM', $end = '11:59 PM', $options = array())
    {
        $items = $this->getCalendarItems($start, $end, $options);
        foreach ($items as $item) {
            $this->deleteCalendarItem($item->getItemId());
        }
    }

    /**
     * Get a list of changes on the calendar items
     *
     * @param null $syncState

Are you sure the doc-type for parameter $syncState is correct as it would always require null to be passed?

     * @param array $options
     * @return API\Message\SyncFolderItemsResponseMessageType
     */
    public function listChanges($syncState = null, $options = array())
    {
        return parent::listItemChanges($this->getFolderId(), $syncState, $options);
    }

    /**
     * @param Type\ItemIdType $itemId
     * @param string $message
     * @param string $sensitivity
     * @param array $options
     *
     * @return Type\ItemIdType[]
     */
    public function acceptMeeting($itemId, $message, $sensitivity = 'Private', $options = array())
    {
        $request = [
            'AcceptItem' => [
                'Sensitivity' => $sensitivity,
                'Body' => ['BodyType' => 'HTML', '_value' => $message],
                'ReferenceItemId' => $itemId->toArray()
            ]
        ];

        $defaultOptions = ['MessageDisposition' => 'SendOnly'];
        $options = array_replace_recursive($defaultOptions, $options);

        $return = $this->createItems($request, $options)->getCalendarItem();
        return Utilities\ensureIsArray($return);
    }

    /**
     * @param $itemId
     * @param $message
     * @param string $sensitivity
     * @param array $options
     * @return Type\ItemIdType[]
     */
    public function declineMeeting($itemId, $message, $sensitivity = 'Private', $options = array())
    {
        $request = [
            'DeclineItem' => [
                'Sensitivity' => $sensitivity,
                'Body' => ['BodyType' => 'HTML', '_value' => $message],
                'ReferenceItemId' => $itemId->toArray()
            ]
        ];

        $defaultOptions = array('MessageDisposition' => 'SendOnly');
        $options = array_replace_recursive($defaultOptions, $options);

        $return = $this->createItems($request, $options)->getCalendarItem();
        return Utilities\ensureIsArray($return);
    }

    /**
     * @param $startTime
     * @param $endTime
     * @param array $users
     * @param array $options
     *
     * @return API\Message\GetUserAvailabilityResponseType
     */
    public function getAvailabilityFor($startTime, $endTime, array $users, array $options = array())
    {
        $startTime = Utilities\ensureIsDateTime($startTime);
        $endTime = Utilities\ensureIsDateTime($endTime);

        $request = [
            'MailboxDataArray' => ['MailboxData' => []],
            'FreeBusyViewOptions' => [
                'TimeWindow' => [
                    'StartTime' => $startTime->format('c'),
                    'EndTime' => $endTime->format('c'),
                ],
                'RequestedView' => 'FreeBusyMerged',
                'MergedFreeBusyIntervalInMinutes' => 30
            ],
        ];

        $users = array_map(function ($user) {
            return [
                'Email' => ['Address' => $user],
                'AttendeeType' => 'Required',
                'ExcludeConflicts' => false
            ];
        }, $users);

        $request['MailboxDataArray']['MailboxData'] = $users;

        $request = array_replace_recursive($request, $options);
        $response = $this->getClient()->GetUserAvailability($request);
        return $response;
    }

    /**
     * @param $startTime
     * @param $endTime
     * @param int $period The period of time to see if users of free for (in minutes)
     * @param array $users
     * @param array $options
     *
     * @return boolean
     * @throws ExchangeException
     */
    public function areAvailable($startTime, $endTime, $period, array $users, array $options = [])
    {
        $options = array_replace_recursive($options, [
            'FreeBusyViewOptions' => [
                'MergedFreeBusyIntervalInMinutes' => $period, 'RequestedView' => 'MergedOnly'
            ]]);
        $availability = $this->getAvailabilityFor($startTime, $endTime, $users, $options);

        $responseMessage = $availability->getFreeBusyResponseArray()->FreeBusyResponse->getResponseMessage();
        if ($responseMessage->getResponseClass() === 'Error') {
            throw new ExchangeException($responseMessage);
        }

        $availabilities = array_map(function (FreeBusyResponseType $freeBusyResponseType) {
            return str_split($freeBusyResponseType->getFreeBusyView()->getMergedFreeBusy());
        }, $availability->getFreeBusyResponseArray()->FreeBusyResponse);

        foreach ($availabilities[0] as $periodIndex => $availability) {
            if ($availability != 0) {
                continue;
            }

            $free = true;
            foreach ($availabilities as $userAvailability) {
                if ($userAvailability[$periodIndex] != 0) {
                    $free = false;
                    break;
                }
            }

            if ($free === false) {
                continue;
            }

            return true;
        }

        return false;
    }
}