package io.trygvis.android.bt;

import android.bluetooth.BluetoothDevice;
import android.bluetooth.BluetoothGatt;
import android.bluetooth.BluetoothGattCallback;
import android.database.sqlite.SQLiteDatabase;
import android.util.Log;

import java.util.Date;

public class BtDevice<A extends BtDevice.BtDeviceWrapper<A>> {
    private final static String TAG = BtDevice.class.getSimpleName();

    private final DefaultBtService btService;
    private final BluetoothDevice bluetoothDevice;
    private BluetoothGatt gatt;
    private Integer rssi;
    private BtScanResult scanResult;
    private A tag;

    private final long id;
    private final boolean seenBefore;
    private final Date firstSeen;
    private Date lastSeen;
    private boolean connected;

    public static interface BtDeviceWrapper<A extends BtDevice.BtDeviceWrapper<A>> {
        BtDevice<A> getBtDevice();
    }

    BtDevice(DefaultBtService btService, BluetoothDevice bluetoothDevice, SQLiteDatabase db,
             BtService.BtDbIntegration<A> btDbIntegration, long id, Integer rssi,
             BtScanResult scanResult, boolean seenBefore, Date firstSeen, Date lastSeen) {
        this.btService = btService;
        this.bluetoothDevice = bluetoothDevice;
        this.id = id;
        this.rssi = rssi;
        this.scanResult = scanResult;
        this.seenBefore = seenBefore;
        this.firstSeen = firstSeen;
        this.lastSeen = lastSeen;

        this.tag = btDbIntegration.createTag(db, this);
    }

    public long getId() {
        return id;
    }

    public A getTag() {
        return tag;
    }

    public String getAddress() {
        return bluetoothDevice.getAddress();
    }

    public String getName() {
        return bluetoothDevice.getName();
    }

    public int getRssi() {
        return rssi;
    }

    public BtScanResult getScanResult() {
        return scanResult;
    }

    public boolean isSeenBefore() {
        return seenBefore;
    }

    public Date getFirstSeen() {
        return firstSeen;
    }

    public Date getLastSeen() {
        return lastSeen;
    }

    public void setLastSeen(Date lastSeen) {
        this.lastSeen = lastSeen;
    }

    public synchronized boolean connect(BtPromise executor) {
        Log.i(TAG, "connect(), address=" + bluetoothDevice.getAddress());
        BluetoothGattCallback callback = executor.asCallback(bluetoothDevice.getAddress());
        gatt = bluetoothDevice.connectGatt(btService, false, new WrappingBluetoothGattCallback(callback) {
            @Override
            public void onConnectionStateChange(BluetoothGatt gatt, int status, int newState) {
                BtDevice.this.connected = newState == BluetoothGatt.STATE_CONNECTED;

                super.onConnectionStateChange(gatt, status, newState);
            }
        });
        return true;
    }

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

    public boolean connected() {
        return connected;
    }

    @Override
    public String toString() {
        return "BtDevice{address=" + bluetoothDevice.getAddress() + '}';
    }

    @Override
    public boolean equals(Object o) {
        if (this == o) {
            return true;
        }
        if (o == null || getClass() != o.getClass()) {
            return false;
        }

        BtDevice other = (BtDevice) o;

        return getAddress().equals(other.getAddress());
    }

    @Override
    public int hashCode() {
        return getAddress().hashCode();
    }
}