module command.remoteundostatus.ceilingfanlowcommand;

import command.remoteundostatus.command;
import command.remoteundostatus.ceilingfan;

class CeilingFanLowCommand : Command
{
    CeilingFan ceilingFan;
    int prevSpeed;

    this(CeilingFan ceilingFan)
    {
        this.ceilingFan = ceilingFan;
    }

    void execute()
    {
        prevSpeed = ceilingFan.getSpeed();
        ceilingFan.low();
    }

    void undo()
    {
        switch (prevSpeed)
        {
            case CeilingFan.HIGH:
                ceilingFan.high();
                break;
            case CeilingFan.MEDIUM:
                ceilingFan.medium();
                break;
            case CeilingFan.LOW:
                ceilingFan.low();
                break;
            case CeilingFan.OFF:
                ceilingFan.off();
                break;
            default: break;
        }
    }
}