package no.topi.fiken.display;

import android.app.Activity;
import android.content.BroadcastReceiver;
import android.content.ComponentName;
import android.content.Context;
import android.content.Intent;
import android.content.ServiceConnection;
import android.os.Bundle;
import android.os.IBinder;
import android.view.Menu;
import android.view.View;
import android.widget.Button;
import android.widget.LinearLayout;
import android.widget.TextView;

import static java.lang.String.valueOf;
import static no.topi.fiken.display.DisplayService.DeviceInfo;
import static no.topi.fiken.display.DisplayService.IntentAction;
import static no.topi.fiken.display.DisplayService.IntentExtra;
import static no.topi.fiken.display.DisplayService.LocalBinder;

public class DisplayControlActivity extends Activity {
    private final static String TAG = DisplayControlActivity.class.getSimpleName();

    private DisplayService displayService;
    private DeviceInfo deviceInfo;

    private TextView deviceNameView;
    private TextView deviceRssiView;
    private TextView gaugeCountView;
    private LinearLayout gaugesLayout;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_display_control);

        final Intent intent = getIntent();
        String deviceAddress = intent.getStringExtra(IntentExtra.DEVICE_ADDRESS.name());
        deviceInfo = new DeviceInfo(deviceAddress, 0);
        deviceInfo.name = intent.getStringExtra(IntentExtra.DEVICE_NAME.name());

        Intent displayServiceIntent = new Intent(this, DefaultDisplayService.class);
        bindService(displayServiceIntent, serviceConnection, BIND_AUTO_CREATE);

        deviceNameView = (TextView) findViewById(R.id.device_name);
        deviceRssiView = (TextView) findViewById(R.id.device_rssi);
        gaugeCountView = (TextView) findViewById(R.id.gauge_count);
        gaugesLayout = (LinearLayout) findViewById(R.id.gauges);

        Button disconnectButton = (Button) findViewById(R.id.button_disconnect);
        disconnectButton.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                disconnect();
            }
        });

        updateValues();
    }

    private void updateValues() {
        deviceNameView.setText(deviceInfo.name != null ? deviceInfo.name : getText(R.string.name_unknown));
        deviceRssiView.setText(getText(R.string.rssi) + ": " + (deviceInfo.rssi != 0 ? valueOf(deviceInfo.rssi) : ""));
        gaugeCountView.setText(getText(R.string.gauge_count) + ": " + (deviceInfo.gaugeCount));
    }

    @Override
    protected void onResume() {
        super.onResume();
        registerReceiver(displayServiceBroadcastReceiver, IntentAction.ALL_FILTER);
    }

    @Override
    protected void onPause() {
        super.onPause();
        unregisterReceiver(displayServiceBroadcastReceiver);
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
        displayService.disconnect();
        unbindService(serviceConnection);
        displayService = null;
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        // Inflate the menu; this adds items to the action bar if it is present.
        getMenuInflater().inflate(R.menu.menu_display_control, menu);
        return true;
    }

    public void disconnect() {
        if (displayService != null) {
            displayService.disconnect();
        }

        finish();
    }

    private final ServiceConnection serviceConnection = new ServiceConnection() {

        @Override
        public void onServiceConnected(ComponentName componentName, IBinder service) {
            displayService = ((LocalBinder) service).getService();
        }

        @Override
        public void onServiceDisconnected(ComponentName componentName) {
            displayService = null;
        }
    };

    private final BroadcastReceiver displayServiceBroadcastReceiver = new BroadcastReceiver() {
        @Override
        public void onReceive(final Context context, final Intent intent) {

            IntentAction action = IntentAction.valueOf(intent);

            String deviceAddress = intent.getStringExtra(IntentExtra.DEVICE_ADDRESS.name());

            if (action == IntentAction.DEVICE_UPDATE && deviceInfo.address.equals(deviceAddress)) {
                runOnUiThread(new Runnable() {
                    @Override
                    public void run() {
                        deviceInfo.update(intent);

                        if (intent.hasExtra(IntentExtra.CONNECTED.name())) {
                            boolean connected = intent.getBooleanExtra(IntentExtra.CONNECTED.name(), false);

                            if (!connected) {
                                finish();
                            }
                        }
                        updateValues();
                    }
                });
            }
        }
    };
}