using System;
using System.Runtime.InteropServices;
using TINK.Model.Device;

[assembly: Xamarin.Forms.Dependency(typeof(TINK.iOS.Device.Device))]
namespace TINK.iOS.Device
{
    public class Device : IDevice
    {
        [DllImport("/System/Library/Frameworks/IOKit.framework/IOKit")]
        private static extern uint IOServiceGetMatchingService(uint masterPort, IntPtr matching);

        [DllImport("/System/Library/Frameworks/IOKit.framework/IOKit")]
        private static extern IntPtr IOServiceMatching(string s);

        [DllImport("/System/Library/Frameworks/IOKit.framework/IOKit")]
        private static extern IntPtr IORegistryEntryCreateCFProperty(uint entry, IntPtr key, IntPtr allocator, uint options);

        [DllImport("/System/Library/Frameworks/IOKit.framework/IOKit")]
        private static extern int IOObjectRelease(uint o);

        /// <summary> Gets unitque device identifier. </summary>
        /// <returns>Gets the identifies specifying device.</returns>
        public string GetIdentifier()
        {
			return UIKit.UIDevice.CurrentDevice?.IdentifierForVendor?.AsString() ?? string.Empty;
        }   
     }
}