package com.reactnativethermalprint.bluetooth;

import android.annotation.SuppressLint;
import android.bluetooth.BluetoothClass;
import android.bluetooth.BluetoothDevice;
import androidx.annotation.Nullable;
import com.reactnativethermalprint.escposprinter.connection.bluetooth.BluetoothConnection;
import com.reactnativethermalprint.escposprinter.connection.bluetooth.BluetoothConnections;
import com.reactnativethermalprint.escposprinter.exceptions.EscPosConnectionException;

public class BluetoothPrintersConnections extends BluetoothConnections {

  /**
   * Easy way to get the first bluetooth printer paired / connected.
   *
   * @return a EscPosPrinterCommands instance
   */
  @Nullable
  public static BluetoothConnection selectFirstPaired() {
    BluetoothPrintersConnections printers = new BluetoothPrintersConnections();
    BluetoothConnection[] bluetoothPrinters = printers.getList();

    if (bluetoothPrinters != null && bluetoothPrinters.length > 0) {
      for (BluetoothConnection printer : bluetoothPrinters) {
        try {
          return printer.connect();
        } catch (EscPosConnectionException e) {
          e.printStackTrace();
        }
      }
    }
    return null;
  }

  /**
   * Get a list of bluetooth printers.
   *
   * @return an array of EscPosPrinterCommands
   */
  @SuppressLint("MissingPermission")
  @Nullable
  public BluetoothConnection[] getList() {
    BluetoothConnection[] bluetoothDevicesList = super.getList();

    if (bluetoothDevicesList == null) {
      return null;
    }

    int i = 0;
    BluetoothConnection[] printersTmp = new BluetoothConnection[bluetoothDevicesList.length];
    for (BluetoothConnection bluetoothConnection : bluetoothDevicesList) {
      BluetoothDevice device = bluetoothConnection.getDevice();

//      int majDeviceCl = device.getBluetoothClass().getMajorDeviceClass(),
//        deviceCl = device.getBluetoothClass().getDeviceClass();

//      if (majDeviceCl == BluetoothClass.Device.Major.IMAGING && (deviceCl == 1664 || deviceCl == BluetoothClass.Device.Major.IMAGING)) {
        printersTmp[i++] = new BluetoothConnection(device);
//      }
    }
    BluetoothConnection[] bluetoothPrinters = new BluetoothConnection[i];
    System.arraycopy(printersTmp, 0, bluetoothPrinters, 0, i);
    return bluetoothPrinters;
  }

}