package ss.week1;
import textio.TextIO;
import java.util.HashMap;
import java.util.concurrent.atomic.LongAccumulator;

public class ThreeWayLamp {

    enum LampState { OFF, LOW, MEDIUM, HIGH } // Store state of lamp with constant values
    public static void main(String[] args) {

        // Create hashmap for NEXT command
        HashMap<LampState, LampState> stateOrder = new HashMap<LampState, LampState>();
        stateOrder.put(LampState.OFF, LampState.LOW);
        stateOrder.put(LampState.LOW, LampState.MEDIUM);
        stateOrder.put(LampState.MEDIUM, LampState.HIGH);
        stateOrder.put(LampState.HIGH, LampState.OFF);
        LampState stateOfLamp = LampState.OFF; // Initialize state of lamp as OFF

        String lightState = "OFF";
        Boolean exit  = false;
        while (!exit) {
            System.out.println("Command:");
            String input = TextIO.getln();
            switch (input) {
                case "OFF":
                    System.out.println("Light turned OFF");
                    stateOfLamp = LampState.OFF;
                    break;
                case "LOW":
                    System.out.println("Light set to LOW");
                    stateOfLamp = LampState.LOW;
                    break;
                case "MEDIUM":
                    System.out.println("Light set to MEDIUM");
                    stateOfLamp = LampState.MEDIUM;
                    break;
                case "HIGH":
                    System.out.println("Light set to HIGH");
                    stateOfLamp = LampState.HIGH;
                    break;
                case "STATE":
                    System.out.println(stateOfLamp);
                    break;
                case "NEXT":
                    stateOfLamp = stateOrder.get(stateOfLamp);
                    System.out.println("Light set to " + stateOfLamp);
                    break;
                case "HELP":
                    System.out.println("HELP MENU:\n" +
                            "OFF - switch the light off\n" +
                            "LOW - switch to low setting\n" +
                            "MEDIUM - switch the light to medium setting\n" +
                            "HIGH - switch the light to high setting\n" +
                            "NEXT - switch the light to the next setting: OFF -> LOW -> MEDIUM -> HIGH -> OFF\n" +
                            "STATE - show the current state of the light\n" +
                            "HELP - show this help menu\n" +
                            "EXIT - exit program");
                    break;
                case "EXIT":
                    exit = true;
                    break;
                default:
                    System.out.println("Not an option");
            }
        }
        System.out.println("Exiting Program");
        System.exit(0);
    }
}