Route.js

/**
 * Route-luokkaa käytetään syntyvän reitin mallintamiseen.
 */
class Route {
    /**
     * Konstruktorille annetaan seuraavat parametrit
     * @param {JSON} stop pysäkki, jossa ollaan viimeisimmäksi käyty
     * @param {number} travelTime vapaaehtoinen, kuinka kauan ollaan matkustettu
     * @param {Date} arrived vapaaehtoinen, milloin reitillä ollaan saavuttu tälle pysäkille∂
     * @param {string} route vapaaehtoinen, reitin tiedot, jolla ollaan saavuttu
     * @param {Route} next vapaaehtoinen, edellinen pysäkki
     */
    constructor(stop, travelTime, arrived, route, next) {
        this.stop = stop
        this.travelTime = travelTime ?? 0
        this.arrived = arrived ?? new Date()
        this.route = route ?? null
        this.next = next ?? null
    }

    /**
     * Palauttaa vertalua varten kuinka kauan tällä reitillä on matkustettu
     * @returns {number}
     */
    valueOf() {
        return this.travelTime
    }

    /**
     * toJSON käytetään reitin havainnollistamiseen JSON-muodossa.
     * @return {JSON} Reitin tiedot JSON-muodossa
     */
    toJSON() {
        const output = {
            to: this.stop,
            from: null,
            arrived: this.arrived,
            startTime: this.arrived,
            travelTime: this.travelTime,
            via: [
                {
                    stop: this.stop,
                    route: this.route,
                    travelTime: this.travelTime,
                },
            ],
        }

        let next = this.next // eslint-disable-line
        while (next !== null) {
            // console.log('next:', next)
            output.via = output.via.concat([
                {
                    stop: next.stop,
                    route: next.route,
                    travelTime: next.travelTime,
                },
            ])
            output.from = next.stop
            output.startTime = next.arrived
            next = next.next
        }

        return output
    }

    /**
     * toJSONForTests käytetään reitin havainnollistamiseen JSON-muodossa testejä varten. Muutos on ilmaista ajat merkkijonoina.
     * @return {JSON} Reitin tiedot JSON-muodossa
     */
    toJSONForTests() {
        const output = {
            to: {
                name: this.stop.name,
                code: this.stop.code,
                gtfsId: this.stop.gtfsId,
                coordinates: this.stop.coordinates,
                locationType: this.stop.locationType,
                arrivesAt: this.stop.arrivesAt.toISOString(),
                realtimeArrivesAt: this.stop.realtimeArrivesAt.toISOString(),
                departuresAt: this.stop.departuresAt.toISOString(),
                realtimeDeparturesAt:
                    this.stop.realtimeDeparturesAt.toISOString(),
                serviceDay: this.stop.serviceDay.toISOString(),
            },
            from: null,
            arrived: this.arrived.toISOString(),
            startTime: this.arrived.toISOString(),
            travelTime: this.travelTime,
            via: [
                {
                    stop: {
                        name: this.stop.name,
                        code: this.stop.code,
                        gtfsId: this.stop.gtfsId,
                        coordinates: this.stop.coordinates,
                        locationType: this.stop.locationType,
                        arrivesAt: this.stop.arrivesAt.toISOString(),
                        realtimeArrivesAt:
                            this.stop.realtimeArrivesAt.toISOString(),
                        departuresAt: this.stop.departuresAt.toISOString(),
                        realtimeDeparturesAt:
                            this.stop.realtimeDeparturesAt.toISOString(),
                        serviceDay: this.stop.serviceDay.toISOString(),
                    },
                    route: this.route,
                    travelTime: this.travelTime,
                },
            ],
        }

        let next = this.next // eslint-disable-line
        while (next !== null) {
            // console.log('next:', next)
            if (next.next !== null) {
                output.via = output.via.concat([
                    {
                        stop: {
                            name: next.stop.name,
                            code: next.stop.code,
                            gtfsId: next.stop.gtfsId,
                            coordinates: next.stop.coordinates,
                            locationType: next.stop.locationType,
                            arrivesAt: next.stop.arrivesAt.toISOString(),
                            realtimeArrivesAt:
                                next.stop.realtimeArrivesAt.toISOString(),
                            departuresAt: next.stop.departuresAt.toISOString(),
                            realtimeDeparturesAt:
                                next.stop.realtimeDeparturesAt.toISOString(),
                            serviceDay: next.stop.serviceDay.toISOString(),
                        },
                        route: next.route,
                        travelTime: next.travelTime,
                    },
                ])
            } else {
                output.via = output.via.concat([
                    {
                        stop: {
                            name: next.stop.name,
                            code: next.stop.code,
                            gtfsId: next.stop.gtfsId,
                            coordinates: next.stop.coordinates,
                            locationType: next.stop.locationType,
                            arrivesAt: next.stop.arrivesAt.toISOString(),
                        },
                        route: next.route,
                        travelTime: next.travelTime,
                    },
                ])
            }

            output.from = {
                name: next.stop.name,
                code: next.stop.code,
                gtfsId: next.stop.gtfsId,
                coordinates: next.stop.coordinates,
                locationType: next.stop.locationType,
                arrivesAt: next.stop.arrivesAt.toISOString(),
            }
            output.startTime = next.arrived.toISOString()
            next = next.next
        }

        return output
    }

    /**
     * toString palauttaa merkkijonomuotoisen esityksen reitistä palauttaen reitillä käytetyn linjan.
     * @returns {string}
     */
    toString() {
        return `${this.route}`
    }
}

module.exports = Route