using Assets.Scripts.Ble.Scan;
using Assets.Scripts.Ble.Win;
using Assets.Scripts.Devices.Ant;
using Assets.Scripts.Devices.Ble;
using Assets.Scripts.Devices.Ble.Interfaces;
using Assets.Scripts.Devices.Ble.Win;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using UnityEngine;

namespace Assets.Scripts.Ble
{
    public sealed class BleMobileInterface : IBleWinHwInterface
    {
        private static BleMobileInterface hwInterface;
        private BleMobileThread bleMobileThread;

        private Dictionary<string, BleAdvertisementInfo> _pCache;
        public Dictionary<string, BleAdvertisementInfo> pCache
        {
            get
            {
                if (_pCache == null)
                {
                    _pCache = new Dictionary<string, BleAdvertisementInfo>();
                }
                return _pCache;
            }
            set { _pCache = value; }
        }
        private Action<BleAdvertisementInfo> _discoveredCallback;

        private Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse>> callbacks = new Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse>>();
        private Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse<List<BleServiceInfo>>>> servicesCallbacks = new Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse<List<BleServiceInfo>>>>();
        //private Dictionary<BlePeripheralInfo, Action<BleWinHwInterface, BleServiceInfo, BleResponse<List<BleCharacteristicInfo>>>> characteristicsCallbacks = new Dictionary<BlePeripheralInfo, Action<BleWinHwInterface, BleServiceInfo, BleResponse<List<BleCharacteristicInfo>>>>();
        private Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BleCharacteristicInfo, BleResponse>> characteristicNotificationCallbacks = new Dictionary<BlePeripheralInfo, Action<IBleWinHwInterface, BleCharacteristicInfo, BleResponse>>();
        private Dictionary<BleCharacteristicInfo, CharacteristicReadCallback> characteristicReadCallbacks = new Dictionary<BleCharacteristicInfo, CharacteristicReadCallback>();
        private Dictionary<BleServiceInfo, CharacteristicsDiscoveredCallback> characteristicsDiscoveredCallbacks = new Dictionary<BleServiceInfo, CharacteristicsDiscoveredCallback>();

        private Dictionary<BlePeripheralInfo, Action> disconnectedCallback = new Dictionary<BlePeripheralInfo, Action>();

        private CharacteristicReadCallback characteristicReadEvent;
        public event CharacteristicReadCallback CharacteristicReadEvent
        {
            add
            {
                this.characteristicReadEvent += value;
            }
            remove
            {
                this.characteristicReadEvent -= value;
            }
        }


        private BluetoothStateChangedCallback bluetoothStateChanged;
        public event BluetoothStateChangedCallback BluetoothStateChangedEvent
        {
            add
            {
                this.bluetoothStateChanged += value;
            }
            remove
            {
                this.bluetoothStateChanged -= value;
            }
        }

        private BleState nativeState;
        public BleState BleState
        {
            get
            {
                return this.nativeState;
            }
            set
            {
                if (this.nativeState != value)
                {
                    this.nativeState = value;
                    this.bluetoothStateChanged?.Invoke(this, this.nativeState);
                }
            }
        }

        private PeripheralDisconnectedCallback peripheralDisconnectedEvent;
        public event PeripheralDisconnectedCallback PeripheralDisconnectedEvent
        {
            add
            {
                this.peripheralDisconnectedEvent += value;
            }
            remove
            {
                this.peripheralDisconnectedEvent -= value;
            }
        }

        private BleMobileInterface()
        {
            bleMobileThread = new BleMobileThread();
            bleMobileThread.ManagerInitialized += BleMobileThread_ManagerInitialized;
            bleMobileThread.ManagerStatusChanged += ManagerStatusChanged;
            bleMobileThread.ScanInfoReceived += WatcherScanInfoReceived;
        }

        private void BleMobileThread_ManagerInitialized(BleMobileThread thread)
        {
            this.BleState = BleState.On;
        }

        private void ManagerStatusChanged(BleMobileThread sender, WclBleManagerStatus status)
        {
            this.BleState = BleMobileInterface.StateFromNativeState(status);
        }

        private void WatcherScanInfoReceived(BleMobileThread sender, string address, string name, int rssi,string[] uuids)
        {
            SensorType sensor = SensorType.None;
            List<Guid> services = new List<Guid>();

            if (uuids != null && uuids.Length > 0)
            {
                foreach (var item1 in uuids)
                {
                    services.Add(new Guid(item1));
                }
                foreach (var item in ServiceUuids.Services)
                {
                    if (!services.Contains(item.IdGuid))
                    {
                        continue;
                    }
                    //Debug.Log($"設備信息，{item.IdGuid},{string.Join(";",item.IdByteArray)}" );
                    if (item.IdByteArray == ServiceUuids.Ftms)
                    {
                        if (App.IsRowerMode == true)
                        {
                            sensor = SensorType.Rower;
                        }
                        else 
                        {
                            sensor = SensorType.Trainer;
                        }
                    }
                    else if (item.IdByteArray == ServiceUuids.HeartRate)
                    {
                        sensor = SensorType.HeartRate;
                    }
                    else if (item.IdByteArray == ServiceUuids.CyclingPower)
                    {
                        sensor = SensorType.Power;
                        //sensor = SensorType.Trainer;
                    }
                    else if (item.IdByteArray == ServiceUuids.CyclingSpeedCadence)
                    {
                        sensor = SensorType.SpeedCadence;
                    }
                    else if (item.IdByteArray == ServiceUuids.TacxBle)
                    {
                        sensor = SensorType.Trainer;
                    }
                }
            };

            var addressStr = address;
            if (!pCache.ContainsKey(addressStr))
            {
                var device = new BleAdvertisementInfo(new WinBlePeripheralInfo(addressStr, name), rssi, true, services, null, sensor);
                pCache.Add(addressStr, device);
            }
            if (!string.IsNullOrWhiteSpace(name))
            {
                (pCache[addressStr].Peripheral as WinBlePeripheralInfo).SetName(name);
            }
            if (sensor == SensorType.None)
            {
                return;
            }
            pCache[addressStr].SensorType = sensor;
            pCache[addressStr].Rssi = rssi;
            //Debug.Log(sensor);
            //pCache[address.ToString()].SensorType = sensor;

            foreach (var item in uuids)
            {
                pCache[addressStr].TryAddService(new Guid(item));
            }

            pCache[addressStr].Index++;
            if (pCache[addressStr].SensorType == SensorType.Power && pCache[addressStr].Services.Any(s => s.Equals(ServiceUuids.Get(ServiceUuids.TacxBle).IdGuid)))
            {
                pCache[addressStr].SensorType = SensorType.Trainer;
                //Debug.Log("纠正为trainer, "+ pCache[address.ToString()].Index);
            }


            if (pCache[addressStr].SensorType == SensorType.Power)
            {
                if (pCache[addressStr].Index > 4)
                {
                    _discoveredCallback?.Invoke(pCache[addressStr]);
                }
            }
            else if (pCache[addressStr].SensorType != SensorType.None)
            {
                _discoveredCallback?.Invoke(pCache[addressStr]);
            }
        }

        List<BleServiceInfo> servicelist = new List<BleServiceInfo>();
        List<BleCharacteristicInfo> characteristilist = new List<BleCharacteristicInfo>();
        public void ConnectPeripheral(BlePeripheralInfo info, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse> callback)
        {
            if (!this.callbacks.ContainsKey(info))
            {
                this.callbacks.Add(info, callback);
            }
            Debug.Log("try connect device" + info.Name + this.callbacks.Count.ToString());
            if (this.callbacks.Count == 1)
            {
                BleResponse s = new BleResponse();
                s.IsSuccess = true;
                s.Error = null;
                var self = this;
                BluetoothLEHardwareInterface.ConnectToPeripheral(info.Address, (address) =>
                {
                    callback?.Invoke(self, info, s);
                    this.callbacks.Remove(info);
                    Debug.Log("连接成功!"+info.Name);
                    Devices.Ble.Characteristic.C2RowerData.IsEnabled = info.Name.Contains("PM");
                    if (this.callbacks.Any())
                    {
                        this.ConnectPeripheral(this.callbacks.First().Key, this.callbacks.First().Value);
                    }
                }, (address, service) =>
                {
                    ServicesDiscovered(address, service);
                }, (address, service, characteristic) =>
                {
                    CharacteristicsDiscovered(address, service, characteristic);
                }, (address) =>
                {
                    Debug.Log("disconnect device:" + address);
                    PeripheralDisconnected(address, info);
                });
            }
        }
        #region 私有方法
        //服务发现
        private void ServicesDiscovered(string address, string service)
        {
            BluetoothLEHardwareInterface.Log(address+"FOUNDFSERVICE：" + service);
            if (servicesCallbacks.Where(c => c.Key.Address == address).Any())
            {

                var serviceCallback = servicesCallbacks.Where(c => c.Key.Address == address).FirstOrDefault();
                List<BleServiceInfo> servicelist = new List<BleServiceInfo>();
                servicelist.Add(new WinBleServiceInfo(serviceCallback.Key, new Guid(service)));
                BleResponse<List<BleServiceInfo>> response = new BleResponse<List<BleServiceInfo>>
                {
                    IsSuccess = true,
                    Error = null,
                    Data = servicelist,
                };
                serviceCallback.Value?.Invoke(this, serviceCallback.Key, response);
            }
        }
        //特征值发现
        private void CharacteristicsDiscovered(string address, string service, string characteristic)
        {
            BluetoothLEHardwareInterface.Log(address + "发现特征值：" + characteristic);
            if (characteristicsDiscoveredCallbacks.Where(c => c.Key.Peripheral.Address == address).Any())
            {
                var characteristicCallback = characteristicsDiscoveredCallbacks.Where(c => c.Key.Peripheral.Address == address).FirstOrDefault();
                List<BleCharacteristicInfo> characteristiclist = new List<BleCharacteristicInfo>();
                characteristiclist.Add(new WinBleCharacteristicInfo(new Guid(characteristic), new WinBleServiceInfo(characteristicCallback.Key.Peripheral, new Guid(service)), 0));
                BleResponse<List<BleCharacteristicInfo>> response = new BleResponse<List<BleCharacteristicInfo>>
                {
                    IsSuccess = true,
                    Error = null,
                    Data = characteristiclist,
                };
                characteristicCallback.Value?.Invoke(this, characteristicCallback.Key, response);
            }
        }
        //设备主动断开处理
        private void PeripheralDisconnected(string address, BlePeripheralInfo info)
        {
            var currentCallback = this.callbacks.Where(c => c.Key.MatchAddress(address));
            if (currentCallback.Any())
            {
                this.callbacks.Remove(currentCallback.First().Key);
            }

            var characteristicCallback = characteristicNotificationCallbacks.Where(c => c.Key.MatchAddress(address));
            if (characteristicCallback.Any())
            {
                characteristicNotificationCallbacks.Remove(characteristicCallback.First().Key);
            }
             
            var serviceCallback = servicesCallbacks.Where(c => c.Key.MatchAddress(address));
            if (serviceCallback.Any())
            {
                servicesCallbacks.Remove(serviceCallback.First().Key);
            }

            var characteristicsDiscoveredCallback = characteristicsDiscoveredCallbacks.Where(c => c.Key.MatchAddress(address));
            if (serviceCallback.Any())
            {
                characteristicsDiscoveredCallbacks.Remove(characteristicsDiscoveredCallback.First().Key);
            }

            peripheralDisconnectedEvent(this, info, null, false);
        }
        #endregion

        //设备断开连接
        public void DisconnectPeripheral(BlePeripheralInfo peripheral, Action callback)
        {
            BluetoothLEHardwareInterface.DisconnectPeripheral(peripheral.Address, (address) =>
            {
                Debug.Log("断开回调"+ address);
                peripheralDisconnectedEvent(this, peripheral, null, true);
                callback?.Invoke();
            });
        }

        public static BleMobileInterface GetInterface()
        {
            if(hwInterface == null)
            {
                hwInterface = new BleMobileInterface();
            }

            return hwInterface;
        }
        //扫描设备
        public void StartScan(Action<BleAdvertisementInfo> discoveredCallBack)
        {
            pCache.Clear();
            _discoveredCallback = discoveredCallBack;
            bleMobileThread.StartWatcher();
        }

        public void StopScan()
        {
            bleMobileThread?.Stop();
        }
        
        //发现服务列表
        public void DiscoverServices(BlePeripheralInfo peripheral, Action<IBleWinHwInterface, BlePeripheralInfo, BleResponse<List<BleServiceInfo>>> callback)
        {
            if (!this.servicesCallbacks.ContainsKey(peripheral))
            {
                this.servicesCallbacks.Add(peripheral, callback);
            }
        }
        //发现特征值
        public void DiscoverCharacteristic(BleServiceInfo service, CharacteristicsDiscoveredCallback callback)
        {
            if (!this.characteristicsDiscoveredCallbacks.ContainsKey(service))
            {
                this.characteristicsDiscoveredCallbacks.Add(service, callback);
            }
        }
        //订阅特征值
        public void SubscribeCharacteristic(BleCharacteristicInfo characteristic, Action<IBleWinHwInterface, BleCharacteristicInfo, BleResponse> callback)
        {
            if (!this.characteristicNotificationCallbacks.ContainsKey(characteristic.Peripheral))
            {
                this.characteristicNotificationCallbacks.Add(characteristic.Peripheral, callback);
            }
            Debug.Log("SubscribeCharacteristic" + characteristic.Peripheral.Name + characteristic.Service.ToString() + characteristic.Service.ToString());
            BluetoothLEHardwareInterface.SubscribeCharacteristicWithDeviceAddress(characteristic.Peripheral.Address, characteristic.Service.ToString(), characteristic.Id.ToString(), (a,b)=> 
            {
                Debug.Log("返回特征值," + a + "," + b);
            }, (deviceAddress, characteristric, bytes) =>
            {
                if (characteristicReadEvent != null)
                {
                    BleResponse<byte[]> response = new BleResponse<byte[]>
                    {
                        IsSuccess = true,
                        Error = null,
                        Data = bytes,
                    };
                    characteristicReadEvent.Invoke(this, characteristic, response);
                }
            });
        }
        //写入特征值
        public void WriteCharacteristic(BleCharacteristicInfo characteristic, byte[] data)
        {
            bool withResponse = false;
#if UNITY_IOS
            withResponse = characteristic.Id.ToString().ToLower().Contains("2AD9".ToLower());
#endif
            BluetoothLEHardwareInterface.WriteCharacteristic(characteristic.Peripheral.Address, characteristic.Service.Id.ToString(), characteristic.Id.ToString(), data, data.Length, withResponse, (characteristicUUID) => {
                Debug.Log("相应" + characteristicUUID);
                BluetoothLEHardwareInterface.Log("Write Succeeded");
            });
        }


        public void Dispose()
        {
            bleMobileThread.ManagerInitialized -= BleMobileThread_ManagerInitialized;
            bleMobileThread.ManagerStatusChanged -= ManagerStatusChanged;
            bleMobileThread.ScanInfoReceived -= WatcherScanInfoReceived;
            bleMobileThread.Dispose();
            bleMobileThread = null;
            hwInterface = null;
            pCache.Clear();
        }

        public void ReadCharacteristic(BleCharacteristicInfo characteristic, CharacteristicReadCallback callback)
        {
            BluetoothLEHardwareInterface.ReadCharacteristic(characteristic.Peripheral.Address, characteristic.Service.Id.ToString(), characteristic.Id.ToString(), (c, bytes) => {
                BleResponse<byte[]> response = new BleResponse<byte[]>
                {
                    IsSuccess = true,
                    Error = null,
                    Data = bytes,
                };
                callback?.Invoke(this, characteristic, response);
            });
        }

        private static BleState StateFromNativeState(WclBleManagerStatus status)
        {
            switch (status)
            {
                case WclBleManagerStatus.RadioOff:
                    return BleState.Off;
                case WclBleManagerStatus.RadioOn:
                    return BleState.On;
                case WclBleManagerStatus.Unknown:
                    return BleState.Unknown;
                default:
                    return BleState.Unavailable;
            }
        }

        private class WinBlePeripheralInfo : BlePeripheralInfo
        {
            // Token: 0x06003F35 RID: 16181 RVA: 0x000E9FBF File Offset: 0x000E81BF
            public WinBlePeripheralInfo(string address, string name) : base(address, name)
            {
            }

            // Token: 0x06003F36 RID: 16182 RVA: 0x000E9FC9 File Offset: 0x000E81C9
            public void SetName(string name)
            {
                base.Name = name;
            }
        }

        private class WinBleServiceInfo : BleServiceInfo
        {
            // Token: 0x06003F86 RID: 16262 RVA: 0x000EA27F File Offset: 0x000E847F
            public WinBleServiceInfo(BlePeripheralInfo peripheral, Guid id) : base(id, peripheral)
            {
            }
        }
        private class WinBleCharacteristicInfo : BleCharacteristicInfo
        {
            // Token: 0x06003F86 RID: 16262 RVA: 0x000EA27F File Offset: 0x000E847F
            public WinBleCharacteristicInfo(Guid id, BleServiceInfo service, BleCharacteristicProperties properties) : base(id,service, properties)
            {

            }
        }
    }
}