using Android.App;
using Android.Content;
using Android.Content.PM;
using Android.Nfc;
using Android.Nfc.Tech;
using Android.OS;
using Com.Lvcheng.Lock.Shared.Nfc.Example.Java;
using NFCLockDemoV2;
using NFCLockDemoV2.Platforms.Android;
using System.Diagnostics;

namespace NFCLockAppV2;

[Activity(Theme = "@style/Maui.SplashTheme", MainLauncher = true, LaunchMode = LaunchMode.SingleTop, ConfigurationChanges = ConfigChanges.ScreenSize | ConfigChanges.Orientation | ConfigChanges.UiMode | ConfigChanges.ScreenLayout | ConfigChanges.SmallestScreenSize | ConfigChanges.Density, Exported = true)]
[IntentFilter(new[] { Intent.ActionMain }, Categories = new[] { Intent.CategoryLauncher })]
[IntentFilter(new[] { NfcAdapter.ActionNdefDiscovered, NfcAdapter.ActionTechDiscovered, NfcAdapter.ActionTagDiscovered }, Categories = new[] { Intent.CategoryDefault }, DataMimeType = "text/plain")]
public class MainActivity : MauiAppCompatActivity
{
    private NFCLockHelper nfcHelper;
    private NFCCallbacks _callbacks;

    //private NfcAdapter _nfcAdapter;
    //private PendingIntent _pendingIntent;
    //private string[][] _techLists = [[typeof(NfcA).FullName, typeof(NdefFormatable).FullName, typeof(MifareUltralight).FullName]];
    //private IntentFilter[] _intentFilters = [new(NfcAdapter.ActionNdefDiscovered), new(NfcAdapter.ActionTechDiscovered), new(NfcAdapter.ActionTagDiscovered)];
    //private volatile bool _processing = false;

    protected override void OnCreate(Bundle savedInstanceState)
    {
        base.OnCreate(savedInstanceState);
        _callbacks = new NFCCallbacks();
        nfcHelper = new NFCLockHelper(this, _callbacks);
        //_nfcAdapter = NfcAdapter.GetDefaultAdapter(this);
        //_pendingIntent = PendingIntent.GetActivity(this, 0, new Intent(this, typeof(MainActivity)).AddFlags(ActivityFlags.ReceiverReplacePending), PendingIntentFlags.Mutable);

    }
    
    protected override void OnResume()
    {
        base.OnResume();
        nfcHelper.OnResume();
        //if (_nfcAdapter != null)
        //{
        //    _nfcAdapter.EnableForegroundDispatch(this, _pendingIntent, _intentFilters, _techLists);
        //}
    }
    
    protected override void OnPause()
    {
        base.OnPause();
        nfcHelper.OnPause();
        //if (_nfcAdapter != null)
        //{
        //    _nfcAdapter.DisableForegroundDispatch(this);
        //}
    }

    protected override void OnNewIntent(Intent intent)
    {
        base.OnNewIntent(intent);
        nfcHelper.OnNewIntent(intent);
        //if (!_processing)
        //{

        //    if (intent != null && (intent.Action == NfcAdapter.ActionNdefDiscovered ||
        //                           intent.Action == NfcAdapter.ActionTechDiscovered ||
        //                           intent.Action == NfcAdapter.ActionTagDiscovered))
        //    {
                
        //        Task.Run(async () =>
        //        {
        //            try
        //            {
        //                _processing = true;
        //                Tag? tag = intent.GetParcelableExtra(NfcAdapter.ExtraTag) as Tag;
        //                if (tag != null)
        //                {
        //                    NfcA? nfcA = NfcA.Get(tag);
        //                    if (nfcA != null)
        //                    {
        //                        nfcA.Connect();
        //                        nfcA.Timeout = 1000;
        //                        Process(nfcA);
        //                    }
        //                }
        //            }
        //            catch (Exception e)
        //            {
        //                _callbacks.OnLost();
        //                Console.WriteLine(e);
        //            }
        //            finally
        //            {
        //                await Task.Delay(2000);
        //                _processing = false;
        //                _callbacks.OnFinished();
        //            }
        //        });
        //    }
        //}

    }

    private void Process(NfcA nfcA)
    {
        DeviceManagerWrapper wrapper = new DeviceManagerWrapper(nfcA);

        try
        {
            Com.Lvcheng.Lock.Shared.Nfc.Result initRes = wrapper.Init();
            if (initRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
            {
                long? id;
                bool? isNew;
                int? mRssi;

                // 无限循环，替代 do-while
                while (true)
                {
                    Com.Lvcheng.Lock.Shared.Nfc.Result getInfoRes = wrapper.Info;
                    if (!getInfoRes.Equals(Com.Lvcheng.Lock.Shared.Nfc.Result.Ok))
                        return;

                    _ = wrapper.Rssi;
                    id = wrapper.MGetId().LongValue();
                    isNew = wrapper.MGetIsNew().BooleanValue();
                    mRssi = wrapper.MGetRssi().IntValue();

                    // 判断是否继续循环
                    bool continueLoop = _callbacks.OnLoop(wrapper, id, isNew, mRssi);
                    System.Diagnostics.Debug.WriteLine("continueLoop:" + continueLoop);

                    // 不继续就退出循环
                    if (!continueLoop)
                        break;
                }
            }
        }
        catch (Exception e)
        {
            Console.WriteLine(e);
        }
    }
}