package mx.trackermap.TrackerMap.client.models

data class UnitInformation(
    val device: Device,
    val position: Position?
) {
    enum class Status {
        ONLINE, OFFLINE, UNKNOWN
    }

    enum class EngineStop {
        ON, OFF, UNKNOWN
    }

    /**
     * Status is calculated from speed, because status based on
     * the actual connection to the server is useless for our clients.
     */
    fun getStatus() = position?.speed?.let {
        if (it >= 2) {
            Status.ONLINE
        } else {
            Status.OFFLINE
        }
    } ?: Status.UNKNOWN

    /* Many GPS devices reserve pin 1 for engine stop */
    fun getEngineStop() = if (position?.attributes?.containsKey("out1") == true) {
        position.attributes["out1"]?.toString()?.let {
            when (it) {
                "true" -> EngineStop.ON
                "false" -> EngineStop.OFF
                else -> EngineStop.UNKNOWN
            }
        } ?: EngineStop.UNKNOWN
    } else EngineStop.UNKNOWN
}