using OnlineUserPool.Api;
using OnlineUserPool.Model;
using OnlineUserPool.Unility;
using Serilog;
using System;
using System.Collections.Generic;
using System.Linq;

namespace OnlineUserPool.Hander
{
    public class MapRecordRankingHander : IHandle
    {
        private static List<MapRecordRanking> mapRecordRankings = new List<MapRecordRanking>();
        private static object locker = new object();//防止服务端响应慢，多次加载
        private const int START = 120;
        private const int SMALL = 100;
        private const int MEDIUM = 150;
        private const int LARGE = 180;
        private const int OFFSET = 15;
        const int offset = 1;
        const int timeInterval = 15;
        List<MsgModel> msgModels = new List<MsgModel>();
        private DateTime UpdateVirtualTime { get; set; }

        public MapRecordRankingHander()
        {
            Init();
        }

        private void Init()
        {
            if (ConfigHelp.Top > 0)
            {
                var records = WebService.GetMapRouteRandomRecord(START, null);
                mapRecordRankings.AddRange(WebService.GetRecordFileFromServer(records.Select(n => n.Id).ToList()));
                UpdateVirtualTime = DateTime.Now;
            }
        }
        
        private Random rand = new Random();

        //根据当前时段计算虚拟总人数
        private int ComputeTop()
        {
            var hour = DateTime.Now.Hour;//当前点数
            int top = 1;//少：1 中：3 多：10
            if (hour <= 6)
            {
                top = rand.Next((int)(0.8 * START), (int)(1.2 * START));
            }
            if (hour > 6 && hour <= 18)
            {
                top = rand.Next((int)(0.8 * OFFSET), (int)(1.2 * MEDIUM));
            }
            if (hour >= 18 && hour <= 22)
            {
                top = rand.Next((int)(0.8 * LARGE), (int)(1.2 * LARGE));
            }
            if (hour > 22 && hour <= 24)
            {
                top = rand.Next((int)(0.8 * SMALL), (int)(1.2 * SMALL));
            }
            return top;
        }

        /// <summary>
        /// 获取虚拟人物数据
        /// </summary>
        /// <returns></returns>
        public List<MsgModel> GetVirtualUserData()
        {
            msgModels.Clear();
            
            if (ConfigHelp.ShowVirtualUser == false)
            {
                return msgModels;
            }

            if (mapRecordRankings != null)
            {
                for (int i = 0; i < mapRecordRankings.Count; i++)
                {
                    try
                    {
                        var item = mapRecordRankings[i];
                        item.CurrentIndex++;
                        TargetData targetData = item.GetCurrentTargetData();

                        var weightKg = 0.0D;
                        if (targetData._Power >= 0)
                        {
                            weightKg = Math.Round(targetData._Power / item.Weight, 2);
                        }

                        if (item.CurrentIndex == 0)
                        {
                            //机器人上线
                            var loginInfo = new MsgModel()
                            {
                                Exit = item.End,
                                IsCompleted = item.End,
                                MemberId = item.UserId, //虚拟的人Id变为负数
                                Point = new double[] { -1d, -1d },
                                //Prop = string.Join(',', prop),
                                RouteId = item.RouteId,
                                EndDistance = Math.Round(targetData._Distance, 6),
                                //ShowVirtual = true,
                                CommandType = 1,
                                //IsVirtual = true,
                                Speed = targetData._Speed,
                                WeightKg = weightKg,
                                PreDistance = item.GetPreDistance()
                            };
                            msgModels.Add(loginInfo);
                        }

                        var info = new MsgModel()
                        {
                            Exit = item.End,
                            IsCompleted = item.End,
                            MemberId = item.UserId, //虚拟的人Id变为负数
                            Point = new double[] { Math.Round(targetData._Lat, 6), Math.Round(targetData._Lon, 6) },
                            //Prop = string.Join(',', prop),
                            RouteId = item.RouteId,
                            EndDistance = Math.Round(targetData._Distance, 6),
                            //ShowVirtual = true,
                            CommandType = 1,
                            //IsVirtual = true,
                            Speed = targetData._Speed,
                            WeightKg = weightKg,
                            PreDistance = item.GetPreDistance()
                        };
                        msgModels.Add(info);
                    }
                    catch (Exception e)
                    {
                        Log.Error("加载虚拟人物错误:" + e.Message + "\r\n" + e.StackTrace);
                    }
                }
            }

            return msgModels;
        }

        /// <summary>
        /// 删除已经骑行完的人，添加新的人物进去
        /// </summary>
        public void RemoveEndAndAddNewVirtualUser(int customerCount)
        {
            lock (locker)
            {
                var top = ComputeTop();//理论上当前时间段虚拟用户的总数
                mapRecordRankings.RemoveAll(n => n.End);//移除骑行结束的人
                var routeIds = mapRecordRankings.Select(n => n.RouteId).Distinct().ToList();
                var currentVirtualCount =  mapRecordRankings.Count(d => d.UserId < 0);//实际虚拟用户数
                if (top - currentVirtualCount > 0)
                {
                    var interval  = DateTime.Now - UpdateVirtualTime;
                    if (interval.TotalSeconds > timeInterval)
                    {
                        UpdateVirtualTime = DateTime.Now;
                        var needUpdateCount = offset;//这一秒需要上线的人数
                        var randomUser = WebService.GetMapRouteRandomRecord(needUpdateCount, routeIds);
                        var addRankings = WebService.GetRecordFileFromServer(randomUser.Select(n => n.Id).ToList());
                        mapRecordRankings.AddRange(addRankings);
                    }
                }
            }
        }
    }
}