using HL_FristAidPlatform_Help;
using HL_FristAidPlatform_IDataBase;
using HL_FristAidPlatform_Models;
using SqlSugar;
using System;
using System.Collections.Generic;
using System.Linq;

namespace HL_FristAidPlatform_DataBase
{
    public class T_Service_Trauma_SevereTraumaDB :BaseDB, IT_Service_Trauma_SevereTrauma
    {
        public SqlSugarClient db = GetClient();

        public List<TraumaStatisticsModel> GetSevereTraumaStatistics(string hospitalGuid, string startTime, string endTime)
        {
            List<TraumaStatisticsModel> list = new List<TraumaStatisticsModel>();

            int Month = (Convert.ToDateTime(endTime).Year - Convert.ToDateTime(startTime).Year) * 12 + (Convert.ToDateTime(endTime).Month - Convert.ToDateTime(startTime).Month);
            List<DateTime> monthList = new List<DateTime>();
            for (int i = 0; i < Month; i++)
            {
                string res = Convert.ToDateTime(startTime).AddMonths(i).Year + "-" + GetMonthZero(Convert.ToDateTime(startTime).AddMonths(i).Month) + "-01";
                DateTime dt = Convert.ToDateTime(res);
                monthList.Add(dt.AddDays(1 - dt.Day));
            }
            //ArriveEmergencyDeath    ArriveOutpatientDeath   IllnessLevel
            var oneClass = db.Queryable<T_Service_Patient, T_Service_Trauma_BaseInfo, T_Service_Trauma_ReceiveInfo, T_Service_Trauma_ISSAIS>((a, b, c, d) => new JoinQueryInfos(
                   JoinType.Left, a.GUID == b.PatientGuid,
                   JoinType.Left, a.GUID == c.PatientGuid,
                   JoinType.Left, a.GUID == d.PatientGuid))
               .Where((a, b, c, d) => a.HospitalGuid == hospitalGuid && a.SystemModuleID == 4 && a.DeleteFlag == 0 && d.Grave == 1)
               .Where((a, b, c, d) => a.CreationDate >= SqlFunc.ToDate(startTime) && a.CreationDate <= SqlFunc.ToDate(endTime)).ToList();

            var twoClass = db.Queryable<T_Service_Patient, T_Service_Trauma_BaseInfo, T_Service_Trauma_ReceiveInfo, T_Service_Trauma_ISSAIS, T_Service_Trauma_OutCome>((a, b, c, d, e) => new JoinQueryInfos(
                    JoinType.Left, a.GUID == b.PatientGuid,
                    JoinType.Left, a.GUID == c.PatientGuid,
                    JoinType.Left, a.GUID == d.PatientGuid,
                    JoinType.Left, a.GUID == e.PatientGuid))
               .Where((a, b, c, d, e) => a.HospitalGuid == hospitalGuid && a.SystemModuleID == 4 && a.DeleteFlag == 0 && d.Grave == 1 && a.CreationDate >= SqlFunc.ToDate(startTime) && a.CreationDate <= SqlFunc.ToDate(endTime) && b.IllnessLevel == "5" || c.Death == "1" || c.ObservationDead == "1" || e.Whereabouts == "4")
               .ToList();

            if (oneClass != null)
            {
                int sum = 0;
                for (int i = 0; i < monthList.Count; i++)
                {
                    TraumaStatisticsModel model = new TraumaStatisticsModel();
                    model.Month = monthList[i].ToString("yyyy-MM");

                    int count = oneClass.Where(j => j.CreationDate >= SqlFunc.ToDate(monthList[i].ToString()) && j.CreationDate <= Convert.ToDateTime(SqlFunc.ToDate(monthList[i].ToString()).AddMonths(1).ToString("yyyy-MM-01")).AddDays(-1)).Count();
                    sum += count;
                    int Deathcount = 0;
                    if (twoClass != null)
                    {
                        Deathcount = twoClass.Where(j => j.CreationDate >= SqlFunc.ToDate(monthList[i].ToString()) && j.CreationDate <= Convert.ToDateTime(SqlFunc.ToDate(monthList[i].ToString()).AddMonths(1).ToString("yyyy-MM-01")).AddDays(-1)).Count();
                    }
                    
                    model.Count = count + "";
                    model.DeathRate = "0";
                    if (count != 0)
                    {
                        double temp = ((double)Deathcount / (double)count) * 100;
                        model.DeathRate = Math.Round(temp, 2)+"";
                    }
                    if(twoClass != null)
                    {
                        if(i == monthList.Count - 1)
                        {
                            model.SumCount = sum + "";
                            double temp = 0;
                            if (sum != 0)
                            {
                                temp = ((double)twoClass.Count() / (double)sum) * 100;
                            }
                            
                            model.SumDeathRate = Math.Round(temp, 2) + "";
                        }
                    }
                    list.Add(model);
                }
            }
            return list;
        }


        /// <summary>
        /// 计算月份
        /// </summary>
        /// <param name="month"></param>
        /// <returns></returns>
        private string GetMonthZero(int month)
        {
            if (month < 10)
            {
                return "0" + month;
            }
            else
            {
                return month.ToString();
            }
        }
        private int GetMinutes(DateTime startTime, DateTime endTime)
        {
            DateTime dtone = Convert.ToDateTime(startTime);
            DateTime dttwo = Convert.ToDateTime(endTime);
            TimeSpan span = dttwo.Subtract(dtone); //算法是dttwo 减去 dtone
            int ss = span.Days * 1440 + span.Hours * 60 + span.Minutes;
            return ss;
        }
    }

    
}