import {
  CheckInService,
  EndUser,
  ReferenceType,
  RelationTypeEnum,
  UserService,
  WitnessCustomerAssetResponse,
} from '@bit-ui-libs/common';
import { format, isValid } from 'date-fns';
import { RelatedEventData } from '../interfaces';

interface GetRelatedEventsOpts {
  childEvents: WitnessCustomerAssetResponse[];
  relationType: RelationTypeEnum;
  checkInService: CheckInService;
  userService: UserService;
}

export async function getRelatedEvents(opts: GetRelatedEventsOpts) {
  const relatedEvents: RelatedEventData[] = [];

  const specificRelatedEvents = opts.childEvents.filter((e) => e.relationType === opts.relationType);
  for (const childEvent of specificRelatedEvents) {
    try {
      const event = await opts.checkInService.getEvent(childEvent.eventIdRef);
      const userId = event.subjectReferences.find((sr) => sr.type === ReferenceType.END_USER_ID)?.value;
      const eventDate =
        event.eventDate && isValid(new Date(event.eventDate)) ? format(new Date(event.eventDate), 'MM-dd-yyyy') : '';
      let userInfo: EndUser | null = null;
      if (userId) userInfo = await opts.userService.getUser(userId);
      relatedEvents.push({
        userInfo: userInfo!,
        attachments: event.attachments,
        eventDate,
        properties: event?.properties,
        type: childEvent.relationType as RelationTypeEnum,
        approved: childEvent.approved,
        checkInEventId: childEvent.eventIdRef,
      });
    } catch (err) {
      continue;
    }
  }
  return relatedEvents;
}