<?php

namespace Bitrix\Calendar\Service\Command\Event;

use Bitrix\Calendar\Access\ActionDictionary;
use Bitrix\Calendar\Access\Model\EventModel;
use Bitrix\Calendar\Internals\Exception\LocationBusy;
use Bitrix\Calendar\Internals\Exception\PermissionDenied;
use Bitrix\Calendar\Rooms\AccessibilityManager;
use Bitrix\Calendar\Service\Command\Result;
use Bitrix\Calendar\Util;

class Add extends Base
{
	public function checkPermissions(): void
	{
		$canAdd = $this->getAccessController()->check(ActionDictionary::ACTION_EVENT_ADD, $this->getEventModel());
		if (!$canAdd)
		{
			throw new PermissionDenied();
		}
	}

	public function execute(): Result
	{
		$params = $this->getInitialParams();
		$section = $this->getSection();
		$meetingHost = $params['meeting_host'] ?? \CCalendar::GetUserId();

		$entryFields = [
			'ID' => 0,
			'DATE_FROM' => $params['dates']['date_from'],
			'DATE_TO' => $params['dates']['date_to'],
			'SKIP_TIME' => $params['dates']['skip_time'],
			'TZ_FROM' => $params['timezones']['timezone_from'],
			'TZ_TO' => $params['timezones']['timezone_to'],
			'NAME' => $params['name'],
			'DESCRIPTION' => $params['description'],
			'SECTIONS' => [$this->getSectionId()],
			'COLOR' => $params['color'],
			'ACCESSIBILITY' => $params['accessibility'],
			'IMPORTANCE' => $params['importance'],
			'PRIVATE_EVENT' => $params['private_event'],
			'RRULE' => $params['rrule'],
			'REMIND' => $params['remind'],
			'SECTION_CAL_TYPE' => $section['CAL_TYPE'],
			'SECTION_OWNER_ID' => $section['OWNER_ID'],
			'MEETING_HOST' => $meetingHost,
			'MEETING' => [
				'HOST_NAME' => \CCalendar::GetUserName($meetingHost),
				'NOTIFY' => $params['meeting_notify'] === 'Y',
				'REINVITE' => $params['meeting_reinvite'] === 'Y',
				'ALLOW_INVITE' => $params['allow_invite'] === 'Y',
				'MEETING_CREATOR' => $meetingHost,
				'HIDE_GUESTS' => $params['hide_guests'] === 'Y',
				'CHAT_ID' => $params['chat_id'] ?? null,
			],
		];

		// Attendees
		$entryFields['ATTENDEES_CODES'] = $this->getAttendeeAccessCodes();
		$entryFields['ATTENDEES'] = \CCalendar::GetDestinationUsers($entryFields['ATTENDEES_CODES']);
		$entryFields['IS_MEETING'] = $this->isMeeting($entryFields['ATTENDEES_CODES']);
		$entryFields = $this->excludeAttendees($entryFields);
		$this->checkBusyAttendies($entryFields);

		// Location
		$entryFields['LOCATION'] = $params['location'];

		if (!AccessibilityManager::checkAccessibility($entryFields['LOCATION'], ['fields' => $entryFields]))
		{
			throw new LocationBusy();
		}

		$newId = \CCalendar::SaveEvent([
			'arFields' => $entryFields,
			'UF' => $params['uf_fields'],
			'silentErrorMode' => false,
			'recursionEditMode' => $params['rec_edit_mode'],
			'currentEventDateFrom' => $params['current_date_from'],
			'sendInvitesToDeclined' => $params['send_invites_again'],
			'requestUid' => $params['request_uid'],
			'checkLocationOccupancy' => $params['check_location_occupancy'],
		]);

		$errors = \CCalendar::GetErrors();

		return new Result($newId, $errors);
	}

	private function getEventModel(): EventModel
	{
		$section = $this->getSection();
		return
			EventModel::createNew()
				->setOwnerId((int)($section['OWNER_ID'] ?? 0))
				->setSectionId($this->getSectionId())
				->setSectionType($section['CAL_TYPE'] ?? '')
		;
	}
}