let allWarnings = []
class Warning {
    constructor(msg, channelOrSensor) {
        this.warning = msg
        this.outOfRange = channelOrSensor.inRange
        this.value = channelOrSensor.value
        this.unit = channelOrSensor.unit
        this.scale = channelOrSensor.scale
        this.created = Date.now()
    }
}
class Reading {
    constructor({ from, value, unit, scale }) {
        this.value = value
        this.unit = unit
        this.scale = scale
        this.from = from
        this.created = Date.now()
    }
}

class Controller {
    constructor({ type, channel, sensor, action=null }) {
        this.type = type
        this.channel = channel
        this.sensor = sensor
        this.action = action
    }
    get inRange() {
        return this.channel.inRange && this.sensor.inRange
    }
    _checkRanges(all) {
        all.forEach(channelOrSensor => {
            if(channelOrSensor.inRange) return
            allWarnings.push(
                new Warning(`${channelOrSensor} out of range.`, channelOrSensor)
            )
        })
    }
    readout() {
        const value = this.channel.readFrom(this.sensor.update())
        this._checkRanges([this.channel, this.sensor])
        return new Reading({
            value,
            from: this.channel.name,
            unit:  this.channel.unit,
            scale:  this.channel.scale
        })
    }
}

module.exports = {
    Controller,
    allWarnings
}