import { ICoordinates, IEntityWithId, IEntityWithTimestamp } from "./SharedEntities";

export interface IRoute extends IEntityWithId, IEntityWithTimestamp {
  name: string;
  color: string;
  polylineCoordinates: ICoordinates[];
  systemId: string;
}

export interface IStop extends IEntityWithId, IEntityWithTimestamp {
  name: string;
  systemId: string;
  coordinates: ICoordinates;
}

export interface IShuttle extends IEntityWithId, IEntityWithTimestamp {
  coordinates: ICoordinates;
  name: string;
  routeId: string;
  systemId: string;
  orientationInDegrees: number;
}

export interface IEta extends IEntityWithTimestamp {
  secondsRemaining: number;
  shuttleId: string;
  stopId: string;
  systemId: string;
}

export interface IOrderedStop extends IEntityWithTimestamp {
  nextStop?: IOrderedStop;
  previousStop?: IOrderedStop;
  routeId: string;
  stopId: string;
  position: number;
  systemId: string;
}

/**
 * Checks if a shuttle has arrived at a stop based on coordinate proximity.
 * Uses a threshold of 0.001 degrees (~111 meters at the equator).
 */
export function shuttleHasArrivedAtStop(shuttle: IShuttle, stop: IStop) {
  const isWithinLatitudeRange = shuttle.coordinates.latitude > stop.coordinates.latitude - 0.001
    && shuttle.coordinates.latitude < stop.coordinates.latitude + 0.001;
  const isWithinLongitudeRange = shuttle.coordinates.longitude > stop.coordinates.longitude - 0.001
    && shuttle.coordinates.longitude < stop.coordinates.longitude + 0.001
  return isWithinLatitudeRange && isWithinLongitudeRange;
}