package moppydesk.outputs;

import javax.bluetooth.*;
import java.io.IOException;

public class BluetoothScan {
    private boolean scanFinished = false;
    private RemoteDevice hc05device;
    private String hc05Url;

    public String scan() throws BluetoothStateException {

        LocalDevice.getLocalDevice().getDiscoveryAgent().startInquiry(DiscoveryAgent.GIAC, new DiscoveryListener() {
            @Override
            public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
                try {
                    String name = btDevice.getFriendlyName(false);
                    System.out.format("%s (%s)\n", name, btDevice.getBluetoothAddress());
                    if (name.contains("HT")) {//!!!!!!!Replace this with a part of your Bluetooth name e.g. HT-05
                        hc05device = btDevice;
                    }
                } catch (IOException e) {
                    e.printStackTrace();
                }
            }

            @Override
            public void inquiryCompleted(int discType) {
                scanFinished = true;
            }

            @Override
            public void serviceSearchCompleted(int transID, int respCode) {
            }

            @Override
            public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
            }
        });
        while (!scanFinished) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }

        //search for services:
        UUID uuid = new UUID(0x1101); //scan for btspp://... services (as HC-05 offers it)
        UUID[] searchUuidSet = new UUID[]{uuid};
        int[] attrIDs = new int[]{
                0x0100 // service name
        };

        scanFinished = false;
        LocalDevice.getLocalDevice().getDiscoveryAgent().searchServices(attrIDs, searchUuidSet,
                hc05device, new DiscoveryListener() {
                    @Override
                    public void deviceDiscovered(RemoteDevice btDevice, DeviceClass cod) {
                    }

                    @Override
                    public void inquiryCompleted(int discType) {
                    }

                    @Override
                    public void serviceSearchCompleted(int transID, int respCode) {
                        scanFinished = true;
                    }

                    @Override
                    public void servicesDiscovered(int transID, ServiceRecord[] servRecord) {
                        for (int i = 0; i < servRecord.length; i++) {
                            hc05Url = servRecord[i].getConnectionURL(ServiceRecord.NOAUTHENTICATE_NOENCRYPT, false);
                            if (hc05Url != null) {
                                break; //take the first one
                            }
                        }
                    }
                });

        while (!scanFinished) {
            try {
                Thread.sleep(100);
            } catch (InterruptedException e) {
                e.printStackTrace();
            }
        }
        System.out.println(hc05Url);
        return hc05Url;
    }
}