using Dlhis.Basic.Device.Request;
using Dlhis.Basic.Device.Response;
using Dlhis.Entity.Basic.Entity;
using Dlhis.Entity.Canteen.Entities;
using Dlhis.Entity.Canteen.Enums;
using Dlhis.Entity.Device.Entities;
using Dlhis.Entity.Device.Enums;
using Kurisu.AspNetCore.Scope;
using Kurisu.AspNetCore.UnifyResultAndValidation;
using Kurisu.AspNetCore.Utils.Extensions;
using Kurisu.Core.DataAccess.Dto;
using Kurisu.SqlSugar.Extensions;
using Kurisu.SqlSugar.Services;
using Mapster;
using Newtonsoft.Json;
using Newtonsoft.Json.Linq;

namespace Dlhis.Basic.Device.Services.Implements;

public class DeviceService : IDeviceService
{
    private readonly IDbContext _dbContext;

    public DeviceService(IDbContext dbContext)
    {
        _dbContext = dbContext;
    }

    public async Task<Pagination<DevicePageResponse>> GetPageAsync(DevicePageRequest request)
    {
        var page = await _dbContext.Queryable<DeviceEntity>()
               .LeftJoin<DeviceTemplateEntity>((d, dt) => d.TemplateCode == dt.Code)
               .WhereIF(request.Type.HasValue, (d, dt) => d.Type == request.Type)
               .Select((d, dt) => new DevicePageResponse
               {
                   FuncsStr = d.Funcs.ToString(),
                   Brand = dt.Brand,
                   Type = d.Type,

               }, true)
               .ToPageListAsync(request);

        var now = DateTime.Now;
        var deviceUniqueNos = page.Data.Select(x => x.UniqueNo).ToList();

        var balanceRecords = await _dbContext.Queryable<BalanceRecordEntity>().Where(x => x.Type == BalanceRecordTypeEnumType.Out)
            .Where(x => deviceUniqueNos.Contains(x.DeviceInfo))
            .ToListAsync();

        var deviceRegistries = await _dbContext.Queryable<DeviceRegistryEntity>()
          .LeftJoin<DeviceEntity>((x, d) => x.DeviceUniqueNo == d.UniqueNo)
          .Where(x => deviceUniqueNos.Contains(x.DeviceUniqueNo))
          .Select((x, d) => new
          {
              d.HeartbeatInterval,
              x.LastHeartbeatTime,
              x.DeviceUniqueNo,
          })
          .ToListAsync();

        page.Data.ForEach(device =>
        {
            device.Amount = balanceRecords.Sum(x => x.Amount);
            device.UserCount = balanceRecords.DistinctBy(x => x.UserCode).Count();

            var r = deviceRegistries.FirstOrDefault(x => x.DeviceUniqueNo == device.UniqueNo);
            if (r == null)
            {
                device.IsOnline = false;
            }
            else
            {
                if (r.HeartbeatInterval <= 0)
                {
                    device.IsOnline = true;
                }
                else
                {
                    device.IsOnline = r.LastHeartbeatTime.AddSeconds(r.HeartbeatInterval * 3) >= now;
                }
            }
        });

        return page;
    }


    public async Task SaveAsync(DeviceSaveRequest request)
    {
        await CheckUniqueNoExistsAsync(request);
        var template = await CheckTemplateExistsAsync(request.TemplateCode);
        await CheckTemplateFieldAsync(request.TemplateCode, request.ConnectionInfo);

        if (!request.Id.HasValue)
        {
            var entity = request.Adapt<DeviceEntity>();
            entity.Code = Guid.NewGuid();
            await _dbContext.InsertAsync(entity);
            //同时保存注册信息
            var registry = await _dbContext.Queryable<DeviceRegistryEntity>().Where(x => x.DeviceUniqueNo == request.UniqueNo).FirstAsync();
            if (registry == null)
            {
                registry = new DeviceRegistryEntity()
                {
                    DeviceUniqueNo = request.UniqueNo,
                    LastHeartbeatTime = DateTime.Now,
                    RegisterTime = DateTime.Now,
                    BusinessPlaceCode = null,
                    BusinessPlaceCustomCode = null,
                };

                await _dbContext.InsertAsync(registry);
            }
        }
        else
        {
            var entity = await _dbContext.Queryable<DeviceEntity>().Where(x => x.Id == request.Id).FirstAsync();
            entity.ThrowIfNull("设备不存在,无法更新");

            //分类发生变化,检查是否存在分组
            if (request.Type != entity.Type)
            {
                var existsG = await _dbContext.Queryable<DeviceGroupRelationshipEntity>()
                          .LeftJoin<DeviceGroupEntity>((dgr, dg) => dgr.GroupCode == dg.Code)
                          .Where((dgr, dg) => dgr.DeviceCode == entity.Code)
                          .Where((dgr, dg) => dg.Type != null)
                          .AnyAsync();

                existsG.ThrowIfTrue("存在设备分组,不可修改设备分类");
            }

            var uniqueNo = entity.UniqueNo;
            request.Adapt(entity).UniqueNo = uniqueNo;

            await _dbContext.UpdateAsync(entity);
        }
    }

    //******************************************************** help methods **********************************************************

    /// <summary>
    /// 检查设备模板是否存在
    /// </summary>
    /// <param name="templateCode"></param>
    /// <returns></returns>
    private async Task<DeviceTemplateEntity> CheckTemplateExistsAsync(Guid templateCode)
    {
        var entity = await _dbContext.Queryable<DeviceTemplateEntity>().Where(x => x.Code == templateCode).FirstAsync();
        entity.ThrowIfNull("设备模板不存在");

        return entity;
    }

    /// <summary>
    /// 检查设备连接参数是否与模板设定一致
    /// </summary>
    /// <param name="templateCode"></param>
    /// <param name="jsonContent"></param>
    /// <returns></returns>
    private async Task CheckTemplateFieldAsync(Guid templateCode, string jsonContent)
    {
        var template = await _dbContext.Queryable<DeviceTemplateEntity>().Where(x => x.Code == templateCode).FirstAsync();
        template.ThrowIfNull("设备模板不存在");

        try
        {
            var templateJobj = JObject.Parse(template.Template);
            var jobj = JObject.Parse(jsonContent);
            (templateJobj.Count == jobj.Count).ThrowIfFalse("连接参数字段数不一致");

            foreach (var item in templateJobj)
            {
                jobj.ContainsKey(item.Key).ThrowIfFalse($"设备连接参数需要和模板一致.缺失{item.Key}");
            }
        }
        catch (Exception ex) when (ex is JsonReaderException)
        {
            throw new UserFriendlyException("连接信息参数格式不正确");
        }
        catch (Exception)
        {
            throw;
        }
    }

    /// <summary>
    /// 检查唯一号是否存在
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    private async Task CheckUniqueNoExistsAsync(DeviceSaveRequest request)
    {
        var exists = await _dbContext.Queryable<DeviceEntity>().Where(x => x.UniqueNo == request.UniqueNo)
              .WhereIF(request.Id.HasValue, x => x.Id != request.Id)
              .AnyAsync();

        exists.ThrowIfTrue("唯一号已经存在");
    }


    public async Task<bool> CheckExistsAsync(string deviceUniqueNo)
    {
        return await _dbContext.Queryable<DeviceEntity>()
            .Where(x => x.UniqueNo == deviceUniqueNo && x.Enable)
            .AnyAsync();
    }

    /// <summary>
    /// 获取设备
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    public async Task<DeviceResponse> GetDeviceByNoAsync(DeviceByNoRequest request)
    {
        var device = await _dbContext.Queryable<DeviceEntity>()
            .Where(x => x.UniqueNo == request.UniqueNo)
            .Select(device => new DeviceResponse
            {
                FuncsStr = device.Funcs.ToString(),
                ConnectionInfoStr = device.ConnectionInfo

            }, true)
            .SingleAsync();

        return device;
    }

    public async Task<List<DeviceResponse>> GetAttendanceDevicesAsync()
    {
        var devices = await _dbContext.Queryable<DeviceEntity>()
            .Where(x => x.Enable)
            .Select(x => new DeviceResponse
            {
                FuncsStr = x.Funcs.ToString()
            }, true)
            .ToListAsync();

        return devices.Where(x => x.Type == DeviceTypeEnumType.Attendance).ToList();
    }

    public async Task<DeviceNumberResponse> GetDeviceNumberAsync()
    {
        var devices = await _dbContext.Queryable<DeviceEntity>()
            .Where(x => x.Type == DeviceTypeEnumType.Attendance && x.Enable)
            .ToListAsync();

        var offlineNumber = await GetOfflineDevicesCount(devices);

        var res = new DeviceNumberResponse
        { 
            OfflineNumber = offlineNumber.Count,
            TotalNumber = devices.Count,
            OnlineNumber = devices.Count- offlineNumber.Count
        };
        return res;
    }
    /// <summary>
    /// 获取离线设备
    /// </summary>
    /// <param name="devices"></param>
    /// <returns></returns>
    private async Task<List<DeviceEntity>> GetOfflineDevicesCount(List<DeviceEntity> devices)
    {
        var nos = devices.Select(x => x.UniqueNo).ToList();
        var deviceRegistrys = await _dbContext.Queryable<DeviceRegistryEntity>()
            .Where(x => nos.Contains(x.DeviceUniqueNo))
            .ToListAsync();

        var list = new List<DeviceEntity>();
        foreach (var device in devices)
        {
            var regis = deviceRegistrys.FirstOrDefault(x => x.DeviceUniqueNo == device.UniqueNo);
                if (regis == null)
            {
                continue;
            }
            TimeSpan timeDifference = DateTime.Now - regis.LastHeartbeatTime;
            if (timeDifference.TotalSeconds > (device.HeartbeatInterval * 3))
            {
               list.Add(device);
            }
        }
        return list;
    }

    public async Task<Pagination<DevicePageResponse>> GetAttendanceTotalAsync(AttendanceTotalRequest request)
    {
        var page = await _dbContext.Queryable<DeviceEntity>()
                .LeftJoin<DeviceTemplateEntity>((d, dt) => d.TemplateCode == dt.Code)
                .Where(d => d.Type == DeviceTypeEnumType.Attendance && d.Enable)
                .Select((d, dt) => new DevicePageResponse
                {
                    FuncsStr = d.Funcs.ToString(),
                    Brand = dt.Brand,
                    Type = d.Type,

                }, true)
                .ToPageListAsync(request);

        return page;
    }

    public async Task<Pagination<DevicePageResponse>> GetAttendanceOfflineAsync(DeviceOnlineAndofflineRequest request)
    {
        var devices = await _dbContext.Queryable<DeviceEntity>()
            .Where(x => x.Type == DeviceTypeEnumType.Attendance && x.Enable)
            .ToListAsync();

        //离线
        var offDevices =await  GetOfflineDevicesCount(devices);
        var offids = offDevices.Select(x => x.Id).ToList();

        if (request.IsOnAndOff)
        {
            //离线
            var offpage = await _dbContext.Queryable<DeviceEntity>()
                .LeftJoin<DeviceTemplateEntity>((d, dt) => d.TemplateCode == dt.Code)
                .Where(d => d.Type == DeviceTypeEnumType.Attendance && d.Enable)
                .Where(d => offids.Contains(d.Id))
                .Select((d, dt) => new DevicePageResponse
                {
                    FuncsStr = d.Funcs.ToString(),
                    Brand = dt.Brand,
                    Type = d.Type,

                }, true)
                .ToPageListAsync(request);
            return offpage;
        }
        //在线
        var ids = devices.Select(x => x.Id).ToList();
        List<long> onids = ids.Except(offids).ToList();

        var page = await _dbContext.Queryable<DeviceEntity>()
                .LeftJoin<DeviceTemplateEntity>((d, dt) => d.TemplateCode == dt.Code)
                .Where(d => d.Type == DeviceTypeEnumType.Attendance && d.Enable)
                .Where(d => onids.Contains(d.Id))
                .Select((d, dt) => new DevicePageResponse
                {
                    FuncsStr = d.Funcs.ToString(),
                    Brand = dt.Brand,
                    Type = d.Type,

                }, true)
                .ToPageListAsync(request);

        return page;
    }

    public async Task<List<RecentNumberResponse>> GetRecentNumbersAsync()
    {
        //获取近30天并转化为"yyyy-MM-dd"集合
        DateTime currentDate = DateTime.Now;
        List<string> times = new List<string>();
        for (int i = 0; i < 30; i++)
        {
            DateTime date = currentDate.AddDays(-i);
            string dateString = date.ToString("yyyy-MM-dd");
            times.Add(dateString);
        }

        var devices = await _dbContext.Queryable<DeviceEntity>().ToListAsync();

        var list = new List<RecentNumberResponse>();
        times.ForEach(time =>
        {
            var count = devices.Where(x => x.CreateTime.ToString("yyyy-MM-dd") == time).Count();
            var res = new RecentNumberResponse
            {
                Date = time,
                Num = count,
            };
            list.Add(res);
        });
        return list;
    }

    public async Task<Pagination<ApiLogResponse>> GetLogsAsync(ApiLogRequest request)
    {
        var level = request.Type.ToString();
        return await Scoped.Request.Value.CreateAsync(async (sp) =>
        {
            var configuration = sp.GetService<IConfiguration>();
            var logConnectionString = configuration.GetSection("SqlSugarOptions:LogConnectionString").Value;

            //todo 切换连接字符串
            var dbContext = sp.GetService<IDbContext>();
            dbContext.Client.CurrentConnectionConfig.ConnectionString = logConnectionString;
            var logs = await dbContext.Queryable<ApiLogEntity>()
                    .WhereIF(!request.message.IsEmpty(), x => x.Message.Contains(request.message))
                    .WhereIF(!level.IsEmpty(), x => x.Level == level)
                    .Select<ApiLogResponse>()
                    .ToPageListAsync(request);
            return logs;

        });
    }
}