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import { Injectable } from '@nestjs/common'; |
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import { InjectRepository } from '@nestjs/typeorm'; |
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import { Repository } from 'typeorm'; |
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import { Zone } from './entities/zone'; |
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import { ZoneQuery } from './types/ZoneQuery'; |
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import { ZoneResponse } from './types/ZoneResponse'; |
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import { BicyclesService } from 'src/bicycles/bicycles.service'; |
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import { getDistance, positionInsidePolygon } from 'src/utils/geo.utils'; |
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import { CityName } from 'src/cities/types/city.enum'; |
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@Injectable() |
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export class ZonesService { |
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constructor( |
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@InjectRepository(Zone) |
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private readonly zoneRepository: Repository<Zone>, |
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private readonly bicyclesService: BicyclesService, |
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) {} |
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async findAll(): Promise<Zone[]> { |
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return await this.zoneRepository.find({ |
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relations: ['speedZone', 'city'], |
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}); |
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} |
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async findByCity(cityName: CityName): Promise<Zone[]> { |
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return await this.zoneRepository.find({ |
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relations: ['city'], |
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where: { |
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city: { |
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name: cityName, |
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}, |
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}, |
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}); |
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} |
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// seems unused |
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// async getZones(lat: number, lon: number): Promise<Zone[]> { |
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// let zones = await this.findAll(); |
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// zones = zones.filter((zone) => { |
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// return positionInsidePolygon(lat, lon, zone.polygon); |
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// }); |
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// return zones; |
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// } |
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async getZonesByFilter(query: ZoneQuery): Promise<ZoneResponse> { |
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const zones: ZoneResponse = { |
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zones: [], |
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}; |
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zones.zones = await this.findAll(); |
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if (query.city && query.city.length > 0) { |
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zones.zones = zones.zones.filter((zone) => { |
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return query.city.includes(zone.city.name); |
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}); |
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} |
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if (query.type && query.type.length > 0) { |
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zones.zones = zones.zones.filter((zone) => { |
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return query.type.includes(zone.type); |
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}); |
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} |
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if (query.lat && query.lon) { |
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zones.zones = zones.zones.filter((zone) => { |
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return ( |
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getDistance(query.lat, query.lon, zone.polygon[0].lat, zone.polygon[0].lng) <= query.rad |
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); |
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}); |
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} |
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if (query.includes && query.includes.length > 0) { |
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const allBikes = await this.bicyclesService.findAll(); |
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zones.zones = zones.zones.map((zone) => { |
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const bikes = allBikes.filter((bike) => { |
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return positionInsidePolygon(bike.latitude, bike.longitude, zone.polygon); |
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}); |
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return { |
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...zone, |
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bikes: bikes, |
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}; |
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}); |
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} |
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return zones; |
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} |
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async getZoneTypesForPosition(lat: number, lon: number): Promise<string[]> { |
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const parkingZones = (await this.findAll()).filter((zone) => { |
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return zone.type === 'parking'; |
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}); |
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const chargingZones = (await this.findAll()).filter((zone) => { |
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return zone.type === 'charging'; |
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}); |
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const parking = parkingZones.some((zone) => { |
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return positionInsidePolygon(lat, lon, zone.polygon); |
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}); |
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const charging = chargingZones.some((zone) => { |
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return positionInsidePolygon(lat, lon, zone.polygon); |
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}); |
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const types = []; |
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if (parking) { |
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types.push('Parking'); |
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} |
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if (charging) { |
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types.push('Charging'); |
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} |
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return types; |
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} |
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async pointInParkingZone(lat: number, lon: number): Promise<boolean> { |
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const zones = (await this.findAll()).filter((zone) => { |
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return zone.type === 'parking'; |
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}); |
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return zones.some((zone) => { |
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return positionInsidePolygon(lat, lon, zone.polygon); |
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}); |
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} |
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} |
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KarlComSe /
SvenskaElsparkcyklarAB
