BluetoothDevicePreference.kt

package me.henneke.wearauthn.ui

import android.annotation.SuppressLint
import android.bluetooth.BluetoothClass
import android.bluetooth.BluetoothDevice
import android.content.Context
import android.preference.Preference
import me.henneke.wearauthn.R
import me.henneke.wearauthn.bthid.canUseAuthenticatorViaBluetooth
import me.henneke.wearauthn.bthid.identifier

open class BluetoothDevicePreference(context: Context, protected val device: BluetoothDevice) :
    Preference(context) {

    init {
        key = device.address
        isPersistent = false

        updateName()
        updateClass()
    }

    fun updateName() {
        title = device.identifier
        notifyChanged()
    }

    @SuppressLint("MissingPermission")
    fun updateClass() {
        if (context.hasBluetoothPermissions) {
            setIcon(
                when (device.bluetoothClass?.majorDeviceClass) {
                    BluetoothClass.Device.Major.AUDIO_VIDEO -> R.drawable.ic_btn_headset
                    BluetoothClass.Device.Major.COMPUTER -> R.drawable.ic_btn_computer
                    BluetoothClass.Device.Major.PHONE -> R.drawable.ic_btn_phone
                    BluetoothClass.Device.Major.WEARABLE -> R.drawable.ic_btn_watch
                    else -> R.drawable.ic_btn_bluetooth
                }
            )
        } else {
            setIcon(R.drawable.ic_btn_bluetooth)
        }
        updateCompatibility()
        notifyChanged()
    }

    private fun updateCompatibility() {
        isEnabled = device.canUseAuthenticatorViaBluetooth
        if (isEnabled) {
            order = context.resources.getInteger(R.integer.order_device_list_compatible_device)
            summary = null
        } else {
            order = context.resources.getInteger(R.integer.order_device_list_incompatible_device)
            setSummary(R.string.status_bluetooth_use_via_nfc_instead)
        }
        notifyChanged()
        notifyHierarchyChanged()
    }
}