BaseStation.java

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;

public class BaseStation {

	// serial number of the base station
	int SerialNo;

	// map containing deviceID as key and value as security device object
	static HashMap<String, SecurityDevice> allDevices;

	// keypad object
	static WirelessKeypad theKeypad;

	// some boolean variables
	static boolean isOn;
	static boolean isOff;
	boolean hasLowBattery;

	// If base station is on power saving mode
	boolean onBetteryMode;

	// Device ID for the base station
	int myDeviceID;

	/**
	 * Constructor
	 * 
	 * @param requires list of all linked devices in the system as a List<>
	 */
	public BaseStation(List<SecurityDevice> linkedDevice) {

		// initialize the hashmap
		allDevices = new HashMap<>();

		// add all security devices in the map<>
		for (SecurityDevice d : linkedDevice) {
			allDevices.put(d.deviceID, d);
		}
	}

	/**
	 * Method to check status of the given device ID
	 * 
	 * @param DeviceID String type
	 * @return String representation of the check status
	 */
	public static String checkStatus(String DeviceID) {

                if(allDevices.containsKey(DeviceID)){
            
		// calls the device's check status method
		String status = (allDevices.get(DeviceID)).doStatusCheck()+"";

		return status;
                }
                else{
                    return "Invalid Device ID";
                }
	}

	public boolean activateDevice(int DeviceID) {

		// if device is inactive, then activate and return true to notify it is been
		// activated
		if (!allDevices.get(DeviceID).isConnected) {

			allDevices.get(DeviceID).isConnected = true;
			return true;
		}

		// False if it is already activated
		return false;
	}

	public boolean dactivateDevice(int DeviceID) {

		// if device is active, then deactivate and return true to notify it is been
		// deactivated
		if (allDevices.get(DeviceID).isConnected) {

			allDevices.get(DeviceID).isConnected = false;
			return true;
		}

		// False if it is already deactivated
		return false;
	}

	public boolean isConnected(int DeviceID) {

		// return true if the device is active and false it not.
		return allDevices.get(DeviceID).isConnected;
	}

	/**
	 * Method to broadcast the message received from securityDevice
	 * 
	 * @param theMessage the string message, int the id of the device
	 */
	public void BroadCastMessage(String theMessage, String id) {

		theKeypad.displayMessage(theMessage, id);
	}

	/**
	 * Method to sendAlert to the wireless keypad
	 * 
	 * @param theAlert alert message as string
	 * @param id       int id of the device
	 */
	public static void SendAlert(String theAlert, String id) {
		theKeypad.displayAlert(theAlert, id);
	}

	/**
	 * Method to change current mode of the system
	 * 
	 * @param theMode string mode value received from keypad
	 */
	public static void changeMode(String theMode) {

		if ((theMode.toLowerCase()).equals("deactivate")) {

			// Iterate over the device and deactivate all of them
			for (String key : allDevices.keySet()) {
				allDevices.get(key).isConnected = false;
			}
		} else if ((theMode.toLowerCase()).equals("activate") || (theMode.toLowerCase()).equals("away")) {

			// Iterate over the device and activate all of them
			for (String key : allDevices.keySet()) {
				allDevices.get(key).isConnected = true;
			}
		} else if ((theMode.toLowerCase()).equals("home")) {

			// Iterate over the device and deactivate all of in house camera
			for (String key : allDevices.keySet()) {

				// only deactivates the in house camera
//				if (allDevices.get(key).DeviceName.equals("camera")) {
//					allDevices.get(key).isConnected = false;
//				}
			}
		}
	}

	/**
	 * Method to get all sync devices with our system
	 * 
	 * @return list of current sync devices
	 */
	public List<SecurityDevice> getAllSyncDevices() {

		List<SecurityDevice> list = new ArrayList<>();

		// iterate over the list of security devices
		for (String key : allDevices.keySet()) {

			// add to the return list only if the component is active
			if (allDevices.get(key).isConnected) {
				list.add(allDevices.get(key));
			}
		}

		return list;
	}

	/**
	 * method to turn on the base station and on all linked devices
	 */
	public static void turnOn() {

		isOff = false;
		isOn = true;

		// Iterate over the device and turn on all device
		for (String key : allDevices.keySet()) {

			allDevices.get(key).isOn = true;
//			allDevices.get(key).isOff = false;
		}

	}

	/**
	 * method to turn off the base station and also off all linked devices
	 */
	public static void turnOff() {

		isOff = true;
		isOn = false;

		// Iterate over the device and turn on all device
		for (String key : allDevices.keySet()) {

			allDevices.get(key).isOn = false;
//			allDevices.get(key).isOff = true;
		}

	}
}