What are best practices for Core Bluetooth in Swift?

// Example of best practices for Core Bluetooth in Swift

import CoreBluetooth

class BluetoothManager: NSObject, CBCentralManagerDelegate, CBPeripheralDelegate {
    var centralManager: CBCentralManager?
    var discoveredPeripheral: CBPeripheral?

    override init() {
        super.init()
        // Initialize the CBCentralManager
        centralManager = CBCentralManager(delegate: self, queue: nil)
    }

    // MARK: - CBCentralManagerDelegate

    func centralManagerDidUpdateState(_ central: CBCentralManager) {
        if central.state == .poweredOn {
            // Start scanning for peripherals
            centralManager?.scanForPeripherals(withServices: nil, options: [CBCentralManagerScanOptionAllowDuplicatesKey: false])
        } else {
            // Handle different Bluetooth states (poweredOff, resetting, unauthorized, etc.)
            print("Bluetooth is not available.")
        }
    }

    func centralManager(_ central: CBCentralManager, didDiscover peripheral: CBPeripheral, advertisementData: [String : Any], rssi RSSI: NSNumber) {
        // Stop scanning
        centralManager?.stopScan()
        discoveredPeripheral = peripheral
        // Connect to the peripheral
        centralManager?.connect(peripheral, options: nil)
    }

    // MARK: - CBPeripheralDelegate

    func peripheral(_ peripheral: CBPeripheral, didConnect peripheral: CBPeripheral) {
        // Connection successful, now discover services
        peripheral.delegate = self
        peripheral.discoverServices(nil)
    }

    // ... additional delegate methods and error handling

}