82 lines
2.4 KiB
TypeScript
82 lines
2.4 KiB
TypeScript
import { Injectable, Logger } from '@nestjs/common';
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import { AdsbExchange, Bearing, ExtendedAircraft } from './types';
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import { DDPoint, Haversine, UnitOfDistance } from 'haversine-ts';
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import axios from 'axios';
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import { ConfigService } from '@nestjs/config';
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const ValidRadii = [1, 5, 10, 25, 50, 100, 250] as const;
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export type ValidRadius = (typeof ValidRadii)[number];
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@Injectable()
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export class AdsbExchangeService {
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private readonly logger: Logger = new Logger(AdsbExchangeService.name);
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constructor(private readonly configService: ConfigService) {}
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isValidRadius(radius: number): radius is ValidRadius {
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return ValidRadii.includes(radius as ValidRadius);
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}
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bearingToAircraft(
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aircraft: AdsbExchange.Aircraft,
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location: AdsbExchange.Location,
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): Bearing {
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const locationPoint = new DDPoint(location.lat, location.long);
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const aircraftPoint = new DDPoint(aircraft.lat, aircraft.lon);
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const haversine = new Haversine(UnitOfDistance.Mile);
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const bearing = haversine.getBearing(locationPoint, aircraftPoint);
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return {
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bearing: bearing.start,
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distance: haversine.getDistance(locationPoint, aircraftPoint),
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};
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}
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async adsbExchangeAircraftWithinRadius(
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radius: ValidRadius,
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location: AdsbExchange.Location,
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): Promise<AdsbExchange.Aircraft[]> {
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this.logger.verbose(
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`Requesting aircraft within ${radius} nautical miles of ${location.lat}, ${location.long}`,
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);
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const options = {
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method: 'GET',
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url: `https://adsbexchange-com1.p.rapidapi.com/v2/lat/${location.lat}/lon/${location.long}/dist/${radius}/`,
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headers: {
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'x-rapidapi-key': this.configService.get<string>('rapidApiKey'),
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'x-rapidapi-host': 'adsbexchange-com1.p.rapidapi.com',
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},
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};
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try {
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const response =
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await axios.request<AdsbExchange.AdsbExchangeRadiusResponse>(options);
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return response.data.ac;
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} catch (error) {
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this.logger.error(error);
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return [];
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}
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}
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extendAircraft(
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aircraft: AdsbExchange.Aircraft[],
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location: AdsbExchange.Location,
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): ExtendedAircraft[] {
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return aircraft.map((a) => ({
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...a,
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bearing: this.bearingToAircraft(a, location),
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}));
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}
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liteAircraft = (aircraft: ExtendedAircraft[]) =>
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aircraft.map((a) => ({
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flight: a.flight,
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registration: a.r,
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type: a.t,
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altitude: a.alt_baro,
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speed: a.gs,
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track: a.track,
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bearing: a.bearing,
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}));
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}
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