using dotnet_etcd;
using Etcdserverpb;
using Google.Protobuf.WellKnownTypes;
using HealthMonitor.Common;
using HealthMonitor.Common.helper;
using HealthMonitor.Core.Common.Extensions;
using HealthMonitor.Model.Config;
using HealthMonitor.Model.Service;
using HealthMonitor.Model.Service.Mapper;
using HealthMonitor.Service.Biz;
using HealthMonitor.Service.Biz.db;
using HealthMonitor.Service.Cache;
using HealthMonitor.Service.Etcd;
using HealthMonitor.Service.Sub;
using Microsoft.AspNetCore.Mvc.RazorPages;
using Microsoft.EntityFrameworkCore.Metadata.Internal;
using Microsoft.Extensions.Options;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;
using System.Reflection;
using System.Threading.Channels;
using TDengineDriver;
using TDengineTMQ;

namespace HealthMonitor.WebApi
{
    public class Worker : BackgroundService
    {
        private readonly ILogger<Worker> _logger;
        private readonly IServiceProvider _services;
        private readonly TDengineDataSubcribe _tdEngineDataSubcribe;
        private readonly PackageProcess _processor;
        private readonly TDengineService _serviceTDengine;
        private readonly EtcdService _serviceEtcd;
        private readonly HttpHelper _httpHelper = default!;
        private readonly IotWebApiService _serviceIotWebApi;
        private readonly BoodPressResolverConfig _configBoodPressResolver;
        private readonly BloodPressReferenceValueCacheManager _bpRefValCacheManager;
        private readonly PersonCacheManager _personCacheMgr;

        private CancellationTokenSource _tokenSource = default!;

        public Worker(ILogger<Worker> logger, IServiceProvider services, PersonCacheManager personCacheMgr, BloodPressReferenceValueCacheManager bpRefValCacheManager, IotWebApiService iotWebApiService, IOptions<BoodPressResolverConfig> optionBoodPressResolver, PackageProcess processor, TDengineDataSubcribe tdEngineDataSubcribe, TDengineService serviceDengine, HttpHelper httpHelper, EtcdService serviceEtcd)
        {
            _logger = logger;
            _tdEngineDataSubcribe = tdEngineDataSubcribe;
            _services = services;
            _serviceIotWebApi = iotWebApiService;
            _processor = processor;
            _serviceEtcd = serviceEtcd;
            _serviceTDengine = serviceDengine;
            _httpHelper = httpHelper;
            _configBoodPressResolver = optionBoodPressResolver.Value;
            _bpRefValCacheManager = bpRefValCacheManager;
            _personCacheMgr = personCacheMgr;
        }

        public override Task StartAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("------StartAsync");
            _tokenSource = CancellationTokenSource.CreateLinkedTokenSource(cancellationToken);
            // 创建消费者
            //  _tdEngineDataSubcribe.CreateConsumer();
            return base.StartAsync(cancellationToken);
        }

        public override Task StopAsync(CancellationToken cancellationToken)
        {
            _logger.LogInformation("------StopAsync");
            _tokenSource.Cancel();  //停止工作线程
                                    // 关闭消费者
                                    //  _tdEngineDataSubcribe.CloseConsumer();
            return base.StopAsync(cancellationToken);
        }

        protected override Task ExecuteAsync(CancellationToken stoppingToken)
        {
            // var processor = _services.GetService<PackageProcess>();
            TaskFactory factory = new(_tokenSource.Token);
            factory.StartNew(async () =>
            {
                if (_tokenSource.IsCancellationRequested)
                    _logger.LogWarning("Worker exit");

                _logger.LogInformation("------ResolveAsync");
                while (!_tokenSource.IsCancellationRequested)
                {
                    // 
                    await _processor.ResolveAsync().ConfigureAwait(false);
                    //  await  _tdEngineDataSubcribe.ProcessMsg();
                }

            }, TaskCreationOptions.LongRunning);

            factory.StartNew(() =>
            {
                _logger.LogInformation("------_tdEngineDataSubcribe");
                while (!_tokenSource.IsCancellationRequested)
                {
                    Console.WriteLine("test");
                    _tdEngineDataSubcribe.BeginListen(_tokenSource.Token);
                }
            }, TaskCreationOptions.LongRunning);
           
            Task.Run(() =>
                _serviceEtcd.WacthKeysWithPrefixResponseAsync($"health_moniter/schedule_push", WatchEvents)
            , stoppingToken);

            // watch
            //factory.StartNew(() =>
            //{
            //    while (!_tokenSource.IsCancellationRequested)
            //    {
            //        //_serviceEtcd.WacthKeysWithPrefixAsync($"health_moniter/schedule_push", watchEvents => WatchEvents(watchEvents));
            //        _serviceEtcd.WacthKeysWithPrefixResponseAsync($"health_moniter/schedule_push", WatchEvents);
            //    }
            //}, TaskCreationOptions.LongRunning);

            // _serviceEtcd.WacthKeysWithPrefixResponseAsync($"health_moniter/schedule_push", WatchEvents);
            return Task.Delay(1000, _tokenSource.Token);

        }

        private void WatchEvents(WatchEvent[] response)
        {
            foreach (WatchEvent e1 in response)
            {
                // Console.WriteLine($"{nameof(WatchEventsAsync)} --- {e1.Key}:{e1.Value}:{e1.Type}");

                switch (e1.Type.ToString())
                {
                    //case "Put":
                    //    // 获取时间点计算TTL
                    //    break;

                    case "Delete":
                        // TTL到了重新计算TTL，下发
                        Console.WriteLine($"--- {e1.Key}:{e1.Value}:{e1.Type}");
                        break;
                }
            }
        }


        private void WatchEvents(WatchResponse response)
        {
         
                response.Events.ToList<Mvccpb.Event>().ForEach(async e =>
                {
                    try 
                    {
                        switch (e.Type.ToString())
                        {
                            case "Put":
                                // 获取时间点计算TTL
                                Console.BackgroundColor = ConsoleColor.Blue;
                                Console.WriteLine($"--- {e.Type}--{e.Kv.Key.ToStringUtf8()}--{e.Kv.Value.ToStringUtf8()}---{DateTime.Now}");
                                Console.BackgroundColor = ConsoleColor.Black;
                                break;

                            case "Delete":
                                // TTL到了重新计算TTL，下发
                                Console.BackgroundColor = ConsoleColor.Green;
                                Console.WriteLine($"--- {e.Type}--{e.Kv.Key.ToStringUtf8()}--{e.Kv.Value.ToStringUtf8()}---{DateTime.Now}");

                                // var key = $"health_moniter/schedule_push/imei/{bp.Serialno}";
                                var key = e.Kv.Key.ToStringUtf8();
                                var imeiDel = key.Split('/')[3];
                                var schedule_push = await _serviceEtcd.GetValAsync(key).ConfigureAwait(false);
                                if (string.IsNullOrWhiteSpace(schedule_push))
                                {
                                    int systolicInc;
                                    int diastolicInc;

                                    int systolicRefValue;
                                    int diastolicRefValue;

                                    decimal systolicAvg;
                                    decimal diastolicAvg;

                                    int systolicMax = 0;
                                    int diastolicMax = 0;

                                    // 统计时间
                                    //DateTime endTime = DateTime.Now; //测试
                                    DateTime statStartTime = DateTime.Now;


                                    // 最小值
                                    int systolicMin = 0;
                                    int diastolicMin = 0;

                                    // 偏移参数
                                    var avgOffset = 0.25M;
                                    var systolicAvgOffset = avgOffset;
                                    var diastolicAvgOffset = avgOffset;

                                    // 最后一次下发值
                                    int lastPushSystolicInc = 0;
                                    int lastPushDiastolicInc = 0;


                                    var startTime = DateTime.Now;
                                    // 下发增量值
                                    #region 统计定时下发增量值
                                    //var last = await _serviceTDengine.GetLastAsync("stb_hm_bloodpress_stats_inc", $"serialno='{imeiDel}' order by last_update desc");
                                    //var ts = last?[0];

                                    // 最后一条血压数据
                                    var condition = $"serialno='{imeiDel}' order by last_update desc";
                                    var field = "last_row(*)";
                                    var lastHmBpResponse = await _serviceTDengine.ExecuteSelectRestResponseAsync("stb_hm_bloodpress", condition, field);
                                    var lastHmBpParser = JsonConvert.DeserializeObject<ParseTDengineRestResponse<BloodPressureModel>>(lastHmBpResponse!);
                                    var lastHmBp = lastHmBpParser?.Select().FirstOrDefault();
                                    //if (lastHmBpParser?.Select()?.ToList().Count < 2)
                                    //{
                                    //    _logger.LogInformation($"{imeiDel} -- {nameof(Worker)} --{nameof(WatchEvents)} -- 血压数据条目不足");
                                    //    break;
                                    //}

                                    // 7 天有效数据
                                    if (lastHmBp?.Timestamp.AddDays(7) > DateTime.Now)
                                    {
                                        // 计算增量值
                                        condition = $"serialno='{imeiDel}' order by ts desc";
                                        var lastPushResponse = await _serviceTDengine.ExecuteSelectRestResponseAsync("stb_hm_bp_push_ref_inc_value", condition, field);
                                        if (lastPushResponse == null)
                                        {
                                            _logger.LogInformation($"{imeiDel}--没有下发记录");
                                            break;
                                        }
                                        var lastPushParser = JsonConvert.DeserializeObject<ParseTDengineRestResponse<BloodPressurePushRefIncModel>>(lastPushResponse);
                                        var lastPush = lastPushParser!.Select().FirstOrDefault();
                                        // 有下推记录
                                        if (lastPush != null)
                                        {
                                            systolicRefValue = lastPush!.SystolicRefValue;
                                            diastolicRefValue = lastPush!.DiastolicRefValue;
                                            lastPushSystolicInc = lastPush!.SystolicIncValue;
                                            lastPushDiastolicInc = lastPush!.DiastolicIncValue;
                                            condition = $"ts between '{lastPush?.Timestamp:yyyy-MM-dd HH:mm:ss.fff}' and '{startTime:yyyy-MM-dd HH:mm:ss.fff}' " +
                                            $"and serialno='{imeiDel}' " +
                                            $"and is_display = true";
                                            // 使用最近一次的下推时间作为统计的开始时间
                                            statStartTime= lastPush!.Timestamp;
                                        }
                                        // 没有下推记录(历史遗留数据),没有初始的测量值产生的平均值（测量值=平均值）
                                        else
                                        {
                                            #region 获取个人信息

                                            var person = await _personCacheMgr.GetDeviceGpsPersonCacheBySerialNoAsync(Guid.NewGuid().ToString(), imeiDel).ConfigureAwait(false);
                                            //验证这个信息是否存在
                                            if (person == null || person?.Person.BornDate == null)
                                            {
                                                _logger.LogWarning($"{nameof(Worker)}--{imeiDel} 验证个人信息，找不到个人信息，跳过此消息");
                                                break;
                                            }
                                            // 验证年龄是否在范围 （2 - 120）
                                            var age = SafeType.SafeInt(DateTime.Today.Year - person?.Person.BornDate!.Value.Year!);
                                            if (age < 2 || age > 120)
                                            {
                                                _logger.LogWarning($"{nameof(Worker)}--{imeiDel} 验证年龄，不在范围 （2 - 120）岁，跳过此消息");
                                                break;
                                            }

                                            var gender = person?.Person.Gender == true ? 1 : 2;
                                            var isHypertension = SafeType.SafeBool(person?.Person.Ishypertension!);
                                            var height = SafeType.SafeDouble(person?.Person.Height!);
                                            var weight = SafeType.SafeDouble(person?.Person.Weight!);

                                            #endregion

                                            #region 初始化常规血压标定值标定值
                                            var bpRef = await _bpRefValCacheManager.GetBloodPressReferenceValueAsync(age, gender, isHypertension);
                                            //systolicRefValue = bpRef!.Systolic;//?
                                            //diastolicRefValue = bpRef!.Diastolic;//?
                                            #endregion

                                            systolicRefValue = bpRef!.Systolic;
                                            diastolicRefValue = bpRef!.Diastolic;
                                            lastPushSystolicInc = 0;
                                            lastPushDiastolicInc = 0;
                                            condition = $"ts <= '{startTime:yyyy-MM-dd HH:mm:ss.fff}' " +
                                            $"and serialno='{imeiDel}' " +
                                            $"and is_display = true";
                                        }



                                        var hmBpResponse = await _serviceTDengine.ExecuteSelectRestResponseAsync("stb_hm_bloodpress", condition);
                                        var hmBpParser = JsonConvert.DeserializeObject<ParseTDengineRestResponse<BloodPressureModel>>(hmBpResponse!);
                                        var hmBp = hmBpParser?.Select();
                                        //if (hmBp?.ToList().Count < 2)
                                        // 1. 判断数据样本数量
                                        if (hmBpParser!.Rows < 5)
                                        {
                                            _logger.LogInformation($"{imeiDel} -- {nameof(Worker)} --{nameof(WatchEvents)} -- 统计定时下发，计算增量值的数据条目不足:{hmBpParser!.Rows} < 5");
                                            _logger.LogInformation($"{imeiDel} -- {nameof(Worker)} --{nameof(WatchEvents)} 没有足够的数据样本，不会定时下发");
                                            break;
                                        }
                                        // 没有下推记录重新计算统计时间
                                        if (lastPush == null)
                                        {
                                            var firstHmBp = hmBpParser?.Select(i=>i).OrderBy(i=>i.Timestamp).FirstOrDefault();
                                            statStartTime = firstHmBp!.Timestamp;
                                        }

                                        // NewMethod(systolicRefValue, hmBpParser);

                                        // 最大值
                                        //systolicMax = (int)hmBpParser?.Select(i => i.SystolicValue).Max()!;
                                        //diastolicMax = (int)hmBpParser?.Select(i => i.DiastolicValue).Max()!;
                                        //// 最小值
                                        //systolicMin = (int)hmBpParser?.Select(i => i.SystolicValue).Min()!;
                                        //diastolicMin = (int)hmBpParser?.Select(i => i.DiastolicValue).Min()!;

                                        //systolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.SystolicValue, SafeType.SafeInt(systolicRefValue!)))!;
                                        //diastolicAvg = (int)(hmBpParser?.AverageAfterRemovingOneMinMaxRef(i => i.DiastolicValue, SafeType.SafeInt(diastolicRefValue!)))!;

                                        var avgs = _serviceTDengine.AverageAfterRemovingOneMinMaxRef(hmBpParser!);
                                        systolicAvg = avgs[0];
                                        diastolicAvg = avgs[1];


                                        // 2. 判断能否计算增量值
                                        if (systolicAvg.Equals(0))
                                        {
                                            _logger.LogInformation($"{imeiDel}--{nameof(Worker)}--计算平均值" +
                                            $"\n currentSystolicAvg:{systolicAvg}  -- lastPushSystolicInc:{lastPushSystolicInc}" +
                                            $"\n currentDiastolicInc:{diastolicAvg}  -- lastPushDiastolicInc:{lastPushDiastolicInc}");
                                            _logger.LogInformation($"{imeiDel}--{nameof(Worker)} 没有足够的数据样本计算平均值，不会定时下发");
                                            break;
                                        }
                                        // 除最大值和最小值后的平均值与标定值差值少于4后（当天计算出该结果则也不产生增量调整），就不再进行增量值调整了。
                                        if (systolicRefValue - systolicAvg < 4)
                                        {
                                            _logger.LogInformation($"systolic 收缩压 {imeiDel}除最大值和最小值后的平均值:{systolicAvg}与标定值:{systolicRefValue}的差值(标定值-平均值)少于4后，不再进行增量值调整");
                                            break;
                                        }

                                        if (diastolicRefValue - diastolicAvg < 4)
                                        {
                                            _logger.LogInformation($"diastolic 舒张压 {imeiDel}除最大值和最小值后的平均值:{diastolicAvg}与标定值:{diastolicRefValue}的差值(标定值-平均值)少于4后，不再进行增量值调整");
                                            break;
                                        }

                                        // 增量值=（标定值-平均值）* 0.25
                                        var currentSystolicInc = (int)((systolicRefValue - systolicAvg) * systolicAvgOffset)!;
                                        var currentDiastolicInc = (int)((diastolicRefValue - diastolicAvg) * diastolicAvgOffset)!;


                                        // 累计增量
                                        systolicInc = currentSystolicInc + lastPushSystolicInc;
                                        diastolicInc = currentDiastolicInc + lastPushDiastolicInc;

                                        _logger.LogInformation($"{imeiDel}--{nameof(Worker)}--计算增量值" +
                                                $"\n {imeiDel} -- systolicAvg:{systolicAvg}-- systolicInc:{systolicInc}-- currentSystolicInc:{currentSystolicInc} -- lastPushSystolicInc:{lastPushSystolicInc}" +
                                                $"\n {imeiDel} -- diastolicAvg:{diastolicAvg}-- diastolicInc:{diastolicInc} --currentDiastolicInc:{currentDiastolicInc} -- lastPushDiastolicInc:{lastPushDiastolicInc}");
                                        _logger.LogInformation($"{imeiDel}--{nameof(Worker)}-- 定时校准,发给设备的绝对增量值=（上次绝对增量值+新数据的增量值）");


                                        _logger.LogInformation($"{nameof(Worker)} 开启血压标定值下发: {_configBoodPressResolver.EnableBPRefPush}");
                                        if (_configBoodPressResolver.EnableBPRefPush)
                                        // if (false) // 临时关闭
                                        {
                                            BloodPressCalibrationConfigModel bpIncData = new()
                                            {

                                                Imei = imeiDel,
                                                SystolicRefValue = SafeType.SafeInt(((int)systolicRefValue!)),  //收缩压标定值，值为0 表示不生效
                                                DiastolicRefValue = SafeType.SafeInt(((int)diastolicRefValue!)), //舒张压标定值，值为0表示不生效
                                                SystolicIncValue = SafeType.SafeInt(((int)systolicInc!)), //收缩压显示增量，值为0 表示不生效
                                                DiastolicIncValue = SafeType.SafeInt(((int)diastolicInc!))   //舒张压显示增量，值为0 表示不生效
                                            };
                                            //var pushedBP = await _serviceIotWebApi.SetBloodPressCalibrationConfigAsync(bpIncData).ConfigureAwait(false);
                                            var response = await _serviceIotWebApi.SetBloodPressCalibrationConfig2Async(bpIncData).ConfigureAwait(false);
                                            var pushedBP = response.Flag;
                                            if (pushedBP)
                                            {
                                                #region 保存下推记录 stb_hm_bp_push_ref_inc_value
                                                var sql = $"INSERT INTO health_monitor.hm_bp_push_ref_inc_value_{imeiDel.Substring(imeiDel.Length - 2)} " +
                                                        $"USING health_monitor.stb_hm_bp_push_ref_inc_value " +
                                                        $"TAGS ('{imeiDel.Substring(imeiDel.Length - 2)}')  " +
                                                        $"VALUES(" +
                                                            $"'{startTime:yyyy-MM-dd HH:mm:ss.fff}'," +
                                                            $"'{imeiDel}'," +
                                                            $"{bpIncData.SystolicRefValue}," +
                                                            $"{bpIncData.DiastolicRefValue}," +
                                                            $"{bpIncData.SystolicIncValue}," +
                                                            $"{bpIncData.DiastolicIncValue}," +
                                                            $"{false}," +
                                                            $"{systolicAvg}," +
                                                            $"{diastolicAvg}," +
                                                            $"{systolicAvgOffset}," +
                                                            $"{diastolicAvgOffset}," +
                                                            $"'{statStartTime:yyyy-MM-dd HH:mm:ss.fff}'," +
                                                            $"'{startTime:yyyy-MM-dd HH:mm:ss.fff}'" +
                                                            $")";
                                                _serviceTDengine.ExecuteInsertSQL(sql);
                                                #endregion

                                                #region 注册定时下发
                                                // 注册下次下推
                                                var endTime = DateTime.Now;

#if DEBUG


                                                //long ttl = (long)((60 * 1000-(endTime-startTime).TotalMilliseconds)/1000);
                                                //await _serviceEtcd.PutValAsync(key, imeiDel,ttl, false).ConfigureAwait(false);

                                                var interval = 0;
                                                // 获取当前时间
                                                DateTime now = DateTime.Now;

                                                // 计算距离下一个$interval天后的8点的时间间隔
                                                DateTime nextRunTime = new DateTime(now.Year, now.Month, now.Day, now.Hour, now.Minute + 2, 0).AddDays(interval);
                                                TimeSpan timeUntilNextRun = nextRunTime - now;

                                                // 如果当前时间已经超过了8点，将等待到明天后的8点
                                                if (timeUntilNextRun < TimeSpan.Zero)
                                                {
                                                    timeUntilNextRun = timeUntilNextRun.Add(TimeSpan.FromMinutes(1));
                                                    nextRunTime += timeUntilNextRun;
                                                }

                                                // var ttl = timeUntilNextRun.TotalMilliseconds;
                                                long ttl = (long)((timeUntilNextRun.TotalMilliseconds - (endTime - startTime).TotalMilliseconds) / 1000);
                                                var data = new
                                                {
                                                    imei = imeiDel,
                                                    create_time = now.ToString("yyyy-MM-dd HH:mm:ss"),
                                                    ttl,
                                                    next_run_time = nextRunTime.ToString("yyyy-MM-dd HH:mm:ss")
                                                };
                                                var result = JsonConvert.SerializeObject(data);

                                                await _serviceEtcd.PutValAsync(key, result, ttl, false).ConfigureAwait(false);


#else
                                        // 每$interval天,晚上8点
                                        var interval = 1;
                                        // 获取当前时间
                                        DateTime now = DateTime.Now;

                                        // 计算距离下一个$interval天后的8点的时间间隔
                                        DateTime nextRunTime = new DateTime(now.Year, now.Month, now.Day, 20, 0, 0).AddDays(interval);
                                        TimeSpan timeUntilNextRun = nextRunTime - now;

                                        // 如果当前时间已经超过了8点，将等待到明天后的8点
                                        if (timeUntilNextRun < TimeSpan.Zero)
                                        {
                                            timeUntilNextRun = timeUntilNextRun.Add(TimeSpan.FromDays(1));
                                            nextRunTime += timeUntilNextRun;
                                        }

                                        // var ttl = timeUntilNextRun.TotalMilliseconds;
                                        long ttl = (long)((timeUntilNextRun.TotalMilliseconds-(endTime-startTime).TotalMilliseconds)/1000);
                                        var data = new
                                        {
                                            imei = imeiDel,
                                            create_time = now.ToString("yyyy-MM-dd HH:mm:ss"),
                                            ttl,
                                            next_run_time = nextRunTime.ToString("yyyy-MM-dd HH:mm:ss")
                                        };
                                        var result = JsonConvert.SerializeObject(data);
                                        await _serviceEtcd.PutValAsync(key, result, ttl, false).ConfigureAwait(false);
#endif
                                                #endregion

                                            }
                                            else
                                            {
                                                _logger.LogInformation($"错误响应，没有下推数据:{response.Message}");
                                            }
                                        }
                                    }
                                    else
                                    {
                                        _logger.LogInformation($"向{imeiDel}统计数据已经失效");
                                    }
                                    #endregion


                                }

                                break;
                        }
                    }
                    catch (Exception ex)
                    {
                        _logger.LogInformation($"{nameof(WatchEvents)},出错: |{ex.Message}|{ex.StackTrace}");
                    }
                    

                });
            
        }
    }
}