using System.Linq.Expressions;
using Fake.Application.Dtos;
using TrackCenter.Application.Dtos.ProvideServices;
using TrackCenter.Application.Dtos.TrackOrder;
using TrackCenter.Application.Helpers;
using TrackCenter.Application.Helpers.OSS;
using TrackCenter.Application.Services.Warning.Handlers;
using TrackCenter.Domain.Aggregates.OrderAggregate;
using TrackCenter.Domain.Aggregates.TrackContentAggregate;
using TrackCenter.Domain.Aggregates.TrackDetailsAggregate;
using TrackCenter.Domain.Aggregates.TrackPushAggregate;
using TrackCenter.Domain.Aggregates.TrackStatusAggregate;
using TrackCenter.Domain.Dtos.Order;
using TrackCenter.Repository.Aggregates.OrderAggregate;

namespace TrackCenter.Application.Services.TrackOrders;

/// <summary>
/// 轨迹订单服务
/// </summary>
[ApiExplorerSettings(GroupName = "轨迹订单")]
[Route("/Track/Order")]
public class TrackOrderService : ApplicationServiceBase
{
    private readonly IOrderOperationRecordEsRepository _orderOperationRecordEsRepository;
    private readonly IOrderRepository _orderRepository;
    private readonly ITrackDetailsEsRepository _trackDetailsEsRepository;
    private readonly ITrackPushRecordEsRepository _trackPushRecordEsRepository;
    private readonly IServiceProvider _serviceProvider;

    public TrackOrderService(
        IOrderRepository orderRepository,
        ITrackDetailsEsRepository trackDetailsEsRepository,
        ITrackPushRecordEsRepository trackPushRecordEsRepository,
        IOrderOperationRecordEsRepository orderOperationRecordEsRepository,
        IServiceProvider serviceProvider)
    {
        _orderRepository = orderRepository;
        _trackDetailsEsRepository = trackDetailsEsRepository;
        _trackPushRecordEsRepository = trackPushRecordEsRepository;
        _orderOperationRecordEsRepository = orderOperationRecordEsRepository;
        _serviceProvider = serviceProvider;
    }

    #region 轨迹订单列表

    /// <summary>
    /// 获取分页的轨迹订单
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetTrackOrderList")]
    public async Task<PagedResult<TrackOrderVO>> GetTrackOrderPagedList(GetPageTrackOrderInput input)
    {
        var vo = ObjectMapper.Map<GetPageTrackOrderInput, GetPageTrackOrderInputVO>(input);
        var pageList = await _orderRepository.GetTrackOrderPagedList(vo);
        return pageList;
    }

    #endregion

    /// <summary>
    /// 更新订单状态
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    /// <exception cref="BusinessException"></exception>
    [HttpPost("UpdateOrderStatus")]
    public async Task<bool> UpdateOrderStatus(UpdateOrderStatusInput input)
    {
        var order = await _orderRepository.GetFirstAsync(x => x.Id == input.OrderId);

        if (order == null) throw new BusinessException(message: "订单不存在");

        var oldIsCompleted = order.IsCompleted;
        if (oldIsCompleted == input.IsCompleted)
        {
            throw new BusinessException(message: "订单状态未发生变化");
        }

        order.IsCompleted = input.IsCompleted;
        var b = await _orderRepository.UpdateColumnAsync(order, x => new
        {
            x.IsCompleted
        });

        // 预警计算
        if (order.IsCompleted)
            WarningCalc_OrderDeletedOrCompleted(order);

        return b;
    }

    /// <summary>
    /// 获取轨迹推送记录
    /// </summary>
    /// <returns></returns>
    /// <param name="orderId">订单id</param>
    [HttpGet("GetTrackPushRecords")]
    public async Task<List<TrackPushRecordOutput>> GetTrackPushRecordsAsync(int orderId)
    {
        var records = await _trackPushRecordEsRepository.GetTrackPushRecordsAsync(orderId);

        var res = ObjectMapper.Map<List<TrackPushRecordIndex>, List<TrackPushRecordOutput>>(records);

        res.ForEach(x =>
        {
            int hours = (int) x.TrackTimeZone; // 提取整数部分作为小时
            int minutes = (int) ((x.TrackTimeZone - hours) * 60); // 将小数部分乘以 60 转换为分钟
            x.TrackGTMTimeZone =
                $"GMT {(x.TrackTimeZone >= 0 ? "+" : "-")}{new TimeSpan(hours, minutes, 0).ToString().RemovePostFix(":00")}";
        });

        return res;
    }

    /// <summary>
    /// 根据订单id获取轨迹明细列表
    /// </summary>
    /// <param name="orderId"></param>
    /// <param name="orderNo"></param>
    /// <param name="appKey"></param>
    /// <param name="sortMethod"></param>
    /// <returns></returns>
    [HttpPost("GetDetails")]
    public async Task<List<TrackOrderDetailDto>> GetTracksAsync(int? orderId, string? orderNo, string? appKey, SortMethod sortMethod = SortMethod.ByCreateTimeDesc)
    {
        Expression<Func<OrderEntity, bool>>? whereExpression = null;
        //根据订单id查询
        if (orderId != null && orderId > 0)
            whereExpression = m => m.Id == orderId;

        //根据订单号+系统id查询
        if (!string.IsNullOrEmpty(orderNo) && !string.IsNullOrEmpty(appKey))
            whereExpression = m => m.OrderNo == orderNo && m.AppKey == appKey;

        if (whereExpression == default)
            throw new BusinessException(message: "请求参数异常");

        var order = await _orderRepository.GetFirstAsync(whereExpression);
        if (order == default)
        {
            throw new BusinessException(message: "订单不存在");
        }

        var trackDetails = await _trackDetailsEsRepository.GetListAsync(order.Id);
        if (trackDetails.IsNullOrEmpty())
        {
            return new List<TrackOrderDetailDto>();
        }

        var list = ObjectMapper.Map<List<TrackDetailsIndex>, List<TrackOrderDetailDto>>(trackDetails);

        // 计算时区
        list.ForEach(a =>
        {
            if (a.TrackTimeZoneValue == 0f)
            {
                a.TrackTimeZone = "GMT +00:00";
            }
            else if (Math.Abs(a.TrackTimeZoneValue - GlobalConst.NoneTrackTimeZone) < 1)
            {
                a.TrackTimeZone = "--";
            }
            else
            {
                // 将小数形式的小时转换为时区偏移量
                var hours = (int) a.TrackTimeZoneValue; // 提取整数部分作为小时
                var minutes = (int) ((a.TrackTimeZoneValue - hours) * 60); // 将小数部分乘以 60 转换为分钟
                var offset = new TimeSpan(hours, minutes, 0);
                var timeZoneStr = offset.ToString();
                var flag = a.TrackTimeZoneValue > 0f ? "+" : "";
                a.TrackTimeZone = $"GMT {flag}{timeZoneStr.RemovePostFix(":00")}";
            }
        });

        // 排序
        switch (sortMethod)
        {
            case SortMethod.ByTrackTime:
                list.Sort((a, b) => DateTimeHelper.ConvertUtc0Compare(a.TrackTime, a.TrackTimeZoneValue, b.TrackTime, b.TrackTimeZoneValue));
                break;
            case SortMethod.ByTrackTimeDesc:
                list.Sort((a, b) => DateTimeHelper.ConvertUtc0Compare(b.TrackTime, b.TrackTimeZoneValue, a.TrackTime, a.TrackTimeZoneValue));
                break;
            case SortMethod.ByCreateTime:
                list.Sort((a, b) => a.CreateTime.CompareTo(b.CreateTime));
                break;
            case SortMethod.ByCreateTimeDesc:
                list.Sort((a, b) => b.CreateTime.CompareTo(a.CreateTime));
                break;
            default:
                throw new ArgumentOutOfRangeException(nameof(sortMethod), sortMethod, null);
        }

        return list;
    }


    /// <summary>
    /// 按时间轴获取轨迹内容
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetDetailTimeline")]
    public async Task<List<GetDetailTimelineOutput>> GetDetailTimeline(GetDetailTimelineInput input)
    {
        var res = new List<GetDetailTimelineOutput>();

        var order = await _orderRepository.GetFirstAsync(m => m.OrderNo == input.OrderNumber);
        if (order == null)
            throw new BusinessException("订单不存在");

        var trackDetails = await _trackDetailsEsRepository.GetListAsync(order.Id);
        //时间轴不显示轨迹内容为空的轨迹，进行过滤
        trackDetails = trackDetails.Where(x => !x.TrackContent.IsNullOrWhiteSpace() && x.TrackContent != GlobalConst.EmptyString).ToList();

        foreach (var item in trackDetails)
        {
            //时间和时区任意一个为空则使用创建时间做为排序参照值
            var timeTick = ToUnixTimestamp(Math.Abs(item.TrackTimeZone - GlobalConst.NoneTrackTimeZone) < 1
                ? item.CreateTime
                : item.TrackTime);
            res.Add(new GetDetailTimelineOutput()
            {
                IsHighlight = true,
                IsShowHover = true,
                Remark = item.Remarks == null || item.Remarks == "--" ? "" : item.Remarks,
                TrackTimeZone = $"GMT{(item.TrackTimeZone >= 0 ? "+" : "-")}{GetTimeZoneStr(item.TrackTimeZone)}",
                TrackTime = timeTick,
                TrackPlace = item.TrackPlace,
                EnContent = item.TrackEnContent,
                Files = item.Files == null
                    ? new List<TrackFileItem>()
                    : item.Files!.Select(m => new TrackFileItem()
                    {
                        OssKey = m.OssKey,
                        FileName = m.FileName,
                        Url = m.OssKey.GetUrlByKey(),
                    }).ToList(),
                Content = item.TrackContent,
                TrackCode = item.TrackCode,
                TrackPlaceNation = item.TrackPlaceNation,
                TrackPlaceProvince = item.TrackPlaceProvince,
                TrackPlaceCity = item.TrackPlaceCity,
            });
        }

        // 按轨迹发生时间正序排序
        res = res.OrderBy(m => m.TrackTime).ToList();

        return res;
    }

    public static long ToUnixTimestamp(DateTime time)
    {
        var sTime = TimeZoneInfo.ConvertTime(new DateTime(1970, 1, 1), TimeZoneInfo.Utc, TimeZoneInfo.Local);
        return (long) (time - sTime).TotalMilliseconds;
    }

    private static string GetTimeZoneStr(float timeZone)
    {
        var time = timeZone.ToString().Split('.');
        if (time.Length > 1 && time[1] != "0") //如果时区有小数点
        {
            return time[0] + ":30";
        }
        else
        {
            return time[0] + ":00";
        }
    }

    /// <summary>
    /// 根据轨迹id删除单条轨迹
    /// </summary>
    /// <param name="trackId">轨迹id</param>
    /// <returns></returns>
    [HttpPost("DeleteTrackById")]
    public async Task<bool> DeleteTrackByIdAsync(string trackId)
    {
        var track = await _trackDetailsEsRepository.GetByIdAsync(trackId);

        // ReSharper disable once ConditionIsAlwaysTrueOrFalseAccordingToNullableAPIContract
        if (track == null)
        {
            throw new BusinessException(message: "轨迹不存在！");
        }

        await _trackDetailsEsRepository.DeleteTrackByIdAsync(trackId, track.IndexName);
        return true;
    }

    /// <summary>
    /// 根据订单id查询订单操作记录
    /// </summary>
    /// <param name="orderId">订单id</param>
    /// <returns></returns>
    [HttpGet("GetOrderOperationsById")]
    public async Task<List<OrderOperationRecordIndex>> GetOrderOperationsByIdAsync(int orderId)
    {
        return await _orderOperationRecordEsRepository.GetOrderOperationsByIdAsync(orderId);
    }

    private void WarningCalc_OrderDeletedOrCompleted(OrderEntity order)
    {
        _ = Task.Run(async () =>
        {
            var scope = _serviceProvider.CreateAsyncScope();
            try
            {
                var handler = scope.ServiceProvider.GetRequiredService<IOrderWarningHandler>();
                await handler.HandleOrderDeletedOrCompletedAsync(order);
            }
            catch (Exception ex)
            {
                Log.Error(ex.ToString());
            }
            finally
            {
                await scope.DisposeAsync();
            }
        });
    }
}