import { CHANGE, RainGaugeReg, SRV_RAIN_GAUGE } from "../jdom/constants"
import { JDRegisterServer } from "../jdom/servers/registerserver"
import { AnalogSensorServer } from "./analogsensorserver"

export class RainGaugeServer extends AnalogSensorServer {
    readonly precipitationPrecision: JDRegisterServer<[number]>
    private _tiltCount = 0
    private _level = 0

    constructor(options?: { bucketSize?: number }) {
        super(SRV_RAIN_GAUGE, {
            readingValues: [0],
        })
        const { bucketSize } = options || {}

        this.precipitationPrecision = this.addRegister<[number]>(
            RainGaugeReg.PrecipitationPrecision,
            [bucketSize || 0.2794],
        )
        this._level = 0
    }

    get tiltCount() {
        return this._tiltCount
    }

    get level() {
        return this._level
    }

    async rain(fraction: number) {
        if (!fraction) return

        this._level += fraction
        if (this._level >= 0.7) await this.tilt()
        else this.emit(CHANGE)
    }

    async tilt() {
        this._tiltCount++
        this._level = 0

        const [bucket] = this.precipitationPrecision.values()
        const [current] = this.reading.values()
        this.reading.setValues([current + (bucket || 0.2)])

        this.emit(CHANGE)
    }
}