package eu.ztsh.garmin

import android.Manifest
import android.annotation.SuppressLint
import android.bluetooth.BluetoothAdapter
import android.bluetooth.BluetoothDevice
import android.bluetooth.BluetoothManager
import android.content.Intent
import android.content.pm.PackageManager
import android.os.Build
import android.os.Bundle
import android.util.Log
import androidx.activity.result.ActivityResultCallback
import androidx.activity.result.contract.ActivityResultContracts.StartActivityForResult
import androidx.appcompat.app.AppCompatActivity
import androidx.core.app.ActivityCompat
import eu.ztsh.garmin.databinding.ActivityMainBinding

@SuppressLint("MissingPermission")
class MainActivity : AppCompatActivity() {

    lateinit var garmin: Garmin

    private lateinit var binding : ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)
//        bluetoothInit()
    }

    private fun bluetoothInit() {
        val bluetoothManager: BluetoothManager = getSystemService(BluetoothManager::class.java)
        val bluetoothAdapter: BluetoothAdapter = bluetoothManager.adapter
            ?: // Device doesn't support Bluetooth
            throw Exception()
        if (!bluetoothAdapter.isEnabled) {
            // TODO: Start intent
            val enableBtIntent = Intent(BluetoothAdapter.ACTION_REQUEST_ENABLE)
            registerForActivityResult(StartActivityForResult(), ActivityResultCallback { })
        }
        checkBt()

        val pairedDevices: Set<BluetoothDevice>? = bluetoothAdapter.bondedDevices
        val context = this
        pairedDevices?.firstOrNull { device ->
            Log.d(TAG, device.name)
            device.name.equals("GARMIN HUD")
        }?.apply {
            garmin = Garmin(context, this, bluetoothAdapter)
            garmin.start()
        }

    }

    fun checkBt(): Boolean {
        if (Build.VERSION.SDK_INT > Build.VERSION_CODES.S) {
            checkBt(Manifest.permission.BLUETOOTH_SCAN)
            checkBt(Manifest.permission.BLUETOOTH_CONNECT)
        } else {
            checkBt(Manifest.permission.BLUETOOTH)
            checkBt(Manifest.permission.BLUETOOTH_ADMIN)
        }
        return true
    }

    private fun checkBt(permission: String): Boolean {
        if (ActivityCompat.checkSelfPermission(
                this,
                permission
            ) != PackageManager.PERMISSION_GRANTED
        ) {
            ActivityCompat.requestPermissions(this, arrayOf(permission), 1)
        }
        return true
    }

    companion object {
        private const val TAG = "bt"
    }

}