using SJZY.Expand.ABP.Core.PublicMethords;
using SJZY.Track.Application.Contract.Dtos.Warning;
using SJZY.Track.Application.Contract.Dtos.Warning.Transport;
using SJZY.Track.Application.Helpers;
using SJZY.Track.Application.Services.Warning.Handlers;
using SJZY.Track.Application.Services.Warning.Model;
using SJZY.Track.Domain.Aggregates.KPIAreaAggregate;
using SJZY.Track.Domain.Aggregates.OrderAggregate;
using SJZY.Track.Domain.Aggregates.TrackDetailsAggregate;
using SJZY.Track.Domain.Aggregates.TrackStatusAggregate;
using SJZY.Track.Domain.Aggregates.WarningAggregate;
using SJZY.Track.Domain.Aggregates.WarningAggregate.Transport;
using SJZY.Track.Domain.Dtos.Warning;
using SJZY.Track.Domain.Enums;
using SJZY.Track.Domain.Extensions;
using SJZY.Track.Domain.Queries;

namespace SJZY.Track.Application.Services.Warning;

/// <summary>
/// 运输时效预警服务
/// </summary>
[ApiExplorerSettings(GroupName = "预警服务")]
[Route("Warning/Transport")]
public class TransportWarningService : ApplicationService
{
    private readonly IOrderRepository _orderRepository;
    private readonly IVExternalSubjectQueries _vExternalSubjectQueries;
    private readonly IVSystemQueries _vSystemQueries;
    private readonly IWarningRuleRepository _warningRuleRepository;
    private readonly IWarningDetailsEsRepository _warningDetailsEsRepository;
    private readonly ITransportWarningHandler _transportWarningHandler;
    private readonly ITrackDetailsEsRepository _trackDetailsEsRepository;
    private readonly ITrackStatusRepository _trackStatusRepository;
    private readonly IKpiAreaRepository _kpiAreaRepository;

    public TransportWarningService(IWarningRuleRepository warningRuleRepository, IWarningDetailsEsRepository warningDetailsEsRepository, ITransportWarningHandler transportWarningHandler, ITrackDetailsEsRepository trackDetailsEsRepository, ITrackStatusRepository trackStatusRepository, IKpiAreaRepository kpiAreaRepository, IOrderRepository orderRepository, IVExternalSubjectQueries vExternalSubjectQueries, IVSystemQueries vSystemQueries)
    {
        _warningRuleRepository = warningRuleRepository;
        _warningDetailsEsRepository = warningDetailsEsRepository;
        _transportWarningHandler = transportWarningHandler;
        _trackDetailsEsRepository = trackDetailsEsRepository;
        _trackStatusRepository = trackStatusRepository;
        _kpiAreaRepository = kpiAreaRepository;
        _orderRepository = orderRepository;
        _vExternalSubjectQueries = vExternalSubjectQueries;
        _vSystemQueries = vSystemQueries;
    }

    /// <summary>
    /// 获取预警规则场景
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetTransportWarningScene")]
    public async Task<UnifyResultDto<List<TransportWarningSceneDto>>> GetTransportWarningScene(GetTransportWarningSceneInput input)
    {
        var entities = await _warningRuleRepository.GetTransportSceneAsync(input.WarningId);
        if (entities.Count == 0) return new UnifyResultDto<List<TransportWarningSceneDto>>(true, Empty<TransportWarningSceneDto>.List);

        var areaIds = entities
            .Select(x => x.AreaId)
            .Where(x => x != null)
            .Select(x => x!.Value)
            .ToHashSet();

        // todo:加缓存
        Dictionary<int, string>? areaNameDict = null;
        if (areaIds.Count > 0)
        {
            var areas = await _kpiAreaRepository.GetListAsync(x => areaIds.Contains(x.Id), y => new
            {
                y.Id,
                y.Name
            });
            areaNameDict = areas.ToDictionary(x => x.Id, y => y.Name);
        }

        var map = entities.Select(x => new TransportWarningSceneDto
        {
            Id = x.Id,
            WarningId = x.WarningId,
            Summary = BuildSummary(x),
            IsTransit = x.IsTransit,
            CargoType = x.CargoType,
            LeavePort = x.LeavePort,
            ProductCode = x.ProductCode,
            Months = x.Months,
            AreaId = x.AreaId,
            AreaName = x.AreaId.HasValue ? areaNameDict?.GetValueOrDefault(x.AreaId.Value) : null
        });

        return new UnifyResultDto<List<TransportWarningSceneDto>>(true, map.ToList());

        // 构建场景摘要
        string BuildSummary(TransportWarningSceneEntity entity)
        {
            const string separator = "/";
            // var sb = new StringBuilder();
            var list = new List<string>(6);
            // 货物类型
            if (!string.IsNullOrWhiteSpace(entity.CargoType))
                list.Add($"{entity.CargoType}");
            // 月份
            if (!string.IsNullOrWhiteSpace(entity.Months))
                list.Add($"{entity.Months.Replace("/", ",")}月份");
            // 中转
            if (entity.IsTransit != null)
                list.Add($"中转为{(entity.IsTransit.Value ? "是" : "否")}");
            // 起运港口
            if (!string.IsNullOrWhiteSpace(entity.LeavePort))
                list.Add($"{entity.LeavePort}");
            // 产品编码
            if (!string.IsNullOrWhiteSpace(entity.ProductCode))
                list.Add($"{entity.ProductCode}");
            // 区域名称
            if (entity.AreaId != null && areaNameDict != null)
            {
                var areaName = areaNameDict.GetValueOrDefault(entity.AreaId.Value);
                if (!string.IsNullOrWhiteSpace(areaName))
                    list.Add($"{areaName}");
            }

            return string.Join(separator, list);
        }
    }

    /// <summary>
    /// 获取运输时效场景规则项目
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetTransportWarningSceneRuleItem")]
    public async Task<UnifyResultDto<List<TransportWarningSceneRuleItemDto>>> GetTransportWarningSceneRuleItem(GetTransportWarningSceneRuleItemInput input)
    {
        var entities = await _warningRuleRepository.GetTransportSceneRuleItemsAsync(input.WarningId, input.SceneId);

        // todo:缓存优化
        var trackStatusIds = entities.SelectMany(x => new List<int>(2)
        {
            x.StartTrackStatusId,
            x.EndTrackStatusId
        }).ToHashSet();
        var trackStatusDict = (await _trackStatusRepository.GetListAsync(x => trackStatusIds.Contains(x.Id), x => new
        {
            x.Id,
            x.Status
        })).ToDictionary(x => x.Id, y => y.Status);

        var map = entities.Select(x => new TransportWarningSceneRuleItemDto
        {
            Id = x.Id,
            StartTrackStatusId = x.StartTrackStatusId,
            StartTrackStatus = trackStatusDict.GetValueOrDefault(x.StartTrackStatusId, GlobalConst.EmptyString),
            EndTrackStatusId = x.EndTrackStatusId,
            EndTrackStatus = trackStatusDict.GetValueOrDefault(x.EndTrackStatusId, GlobalConst.EmptyString),
            TransportTimeSpan = x.TransportTimeSpan,
            StartTrackWarningTimeSpan = x.StartTrackWarningTimeSpan,
            NotifyUsers = x.NotifyUsers.ToObject<List<NotifyUserDto>>()
        });

        return new UnifyResultDto<List<TransportWarningSceneRuleItemDto>>(true, map.ToList());
    }

    /// <summary>
    /// 分页获取运输时效预警明细
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetPageTransportWarningDetails")]
    public async Task<UnifyPageResultDto<TransportWarningDetailsDto>> GetPageTransportWarningDetails(GetPageTransportWarningDetailsInput input)
    {
        var vo = ObjectMapper.Map<GetPageTransportWarningDetailsInput, GetPageTransportWarningDetailsInputVO>(input);
        // 存储只存即将超时，对于已超时的则是查出计算后过滤
        if (input.Status == (int) TransportWarningStatus.已超时)
            vo.Status = (int) TransportWarningStatus.即将超时;
        var result = await _warningDetailsEsRepository.GetPageTransportWarningDetailsAsync(vo);
        if (result.List.Count == 0)
        {
            return new UnifyPageResultDto<TransportWarningDetailsDto>(new List<TransportWarningDetailsDto>(), input.PageIndex, input.PageSize, 0);
        }

        // 查最新轨迹
        var orderIds = result.List.Select(x => x.OrderId).ToHashSet();
        var orderIdTrackDict = await _trackDetailsEsRepository.GetLatestDictAsync(orderIds);

        // todo:缓存优化
        // 订单类型
        var orderTypeDict = await _orderRepository.GetTrackOrderTypeDictAsync();
        // 客户简称
        var customIds = result.List.Select(x => x.CustomId).ToHashSet();
        var customDict = (await _vExternalSubjectQueries
            .GetListAsync(x => customIds.Contains(x.Id), x => new
            {
                x.Id,
                x.Abbreviation
            })).ToDictionary(x => x.Id, x => x.Abbreviation);
        // 子系统
        var subSystemIds = result.List.Select(x => x.SubSystemId).ToHashSet();
        var subSystemDict = (await _vSystemQueries
            .GetListAsync(x => subSystemIds.Contains(x.Id), x => new
            {
                x.Id,
                x.CnName
            })).ToDictionary(x => x.Id, x => x.CnName);

        var map = result.List.Select(x =>
        {
            var orderIdTrack = orderIdTrackDict.GetValueOrDefault(x.OrderId);
            return new TransportWarningDetailsDto
            {
                EsId = x.Id,
                SubSystemId = x.SubSystemId,
                SubSystemName = subSystemDict.GetValueOrDefault(x.SubSystemId, GlobalConst.EmptyString),
                CustomId = x.CustomId,
                CustomName = customDict.GetValueOrDefault(x.CustomId, GlobalConst.EmptyString),
                OrderId = x.OrderId,
                OrderNo = x.OrderNo,
                OrderType = x.OrderType,
                OrderTypeName = orderTypeDict.GetValueOrDefault(x.OrderType.ToString(), GlobalConst.EmptyString),
                NotifyUserNames = ToUserNames(x.NotifyUsers),

                // 最新轨迹 (不冗余)
                LatestTrackContent = orderIdTrack?.TrackContent,
                LatestTrackTime = orderIdTrack?.TrackTime,
                LatestTrackTimeZone = DateTimeHelper.ConvertFloatToTimeZone(orderIdTrack?.TrackTimeZone),
                LatestTrackPlace = orderIdTrack?.TrackPlace,

                // 起始轨迹
                StartTrackStatus = x.StartTrackStatus,
                StartTrackContent = x.StartTrackContent,
                StartTrackTime = x.StartTrackTime,
                StartTrackTimeZone = DateTimeHelper.ConvertFloatToTimeZone(x.StartTrackTimeZone),

                // 截止轨迹
                EndTrackStatus = x.EndTrackStatus,
                EndTrackContent = x.EndTrackContent,
                EndTrackTime = x.EndTrackTime,
                EndTrackTimeZone = DateTimeHelper.ConvertFloatToTimeZone(x.EndTrackTimeZone),

                WarningName = x.WarningName,
                WarningRuleDescription = x.WarningRuleDescription,

                // 累计运输时间
                CumulativeTimeSpan = FormatCumulativeTimeSpan(x),

                // 状态动态计算
                Status = x.CalcStatus(),
                CreateTime = x.CreateTime
            };
        });

        // 计算后的状态过滤
        var filtered = map.WhereIf(input.Status > 0, x => x.Status == input.Status);

        // 按状态组+组内时间降序，分割状态组 g1:(即将超时/已超时) g2:(已完成/超时完成/已关闭) 确保g1总是在g2之前
        var sorted = filtered
            .OrderBy(x => x.Status is (int) TransportWarningStatus.即将超时 or (int) TransportWarningStatus.已超时 ? 1 : 2)
            .ThenByDescending(x => x.CreateTime) //同状态组按时间降序
            .ToList();

        return new UnifyPageResultDto<TransportWarningDetailsDto>(
            sorted,
            result.Pagination.PageIndex,
            result.Pagination.PageSize,
            sorted.Count);

        // 通知用户提取用户名称
        string ToUserNames(string notifyUsers)
        {
            if (string.IsNullOrWhiteSpace(notifyUsers))
                return string.Empty;
            return string.Join(',', notifyUsers.ToObject<List<NotifyUserDto>>().Select(x => x.UserName));
        }

        // 格式化累计运输时间为文本形式
        string FormatCumulativeTimeSpan(TransportWarningDetailsIndex detail)
        {
            // 如果是完成态则直接取缓存的累计运输时间
            var timeSpan = detail.CanCompleted()
                ? TimeSpan.FromMilliseconds(detail.CumulativeTimeSpan)
                : DateTime.Now.Subtract(detail.StartTrackTime);

            return $"{timeSpan.Days:00}天{timeSpan.Hours:00}小时{timeSpan.Minutes:00}分钟";
        }
    }

    /// <summary>
    /// 新增/更新 运输时效场景
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("UpsertTransportWarningScene")]
    public async Task<UnifyResultDto<IdBaseDto>> UpsertTransportWarningScene(UpsertTransportWarningSceneInput input)
    {
        var rule = await _warningRuleRepository.GetWarningRuleByIdAsync(input.WarningId, WarningRuleType.运输时效预警);
        if (rule == null)
        {
            throw new BusinessException(message: $"预警规则主体不存在，WarningId=[{input.WarningId}]");
        }

        var postBo = TransportWarningSceneBO.From(input);
        // 查出旧场景
        var oldScene = await _warningRuleRepository.GetTransportSceneAsync(input.WarningId, input.Id);
        var oldBo = oldScene != null ? TransportWarningSceneBO.From(oldScene) : null;

        // 如果有月份则排序之后在写入
        if (!string.IsNullOrWhiteSpace(postBo.Months))
        {
            var sorted = postBo.Months.Split('/').Select(int.Parse).OrderBy(x => x).ToList();
            postBo.Months = string.Join('/', sorted);
        }

        // 更新或者新增
        var id = await _warningRuleRepository.UpsertTransportSceneReturnIdAsync(postBo.ToEntity());

        if (oldBo != null)
            await _transportWarningHandler.HandleSceneChangedAsync(rule, oldBo, postBo);

        return new UnifyResultDto<IdBaseDto>(true, new IdBaseDto
        {
            Id = id
        });
    }


    /// <summary>
    /// 删除运输时效规则场景
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("DeleteTransportWarningScene")]
    public async Task<UnifyResultDto> DeleteTransportWarningScene(DeleteTransportWarningSceneInput input)
    {
        var rule = await _warningRuleRepository.GetWarningRuleByIdAsync(input.WarningId, WarningRuleType.运输时效预警);
        if (rule == null)
        {
            throw new BusinessException(message: $"预警规则主体不存在，WarningId=[{input.WarningId}]");
        }

        var scene = await _warningRuleRepository.GetTransportSceneAsync(input.WarningId, input.Id);
        if (scene == null)
        {
            throw new BusinessException(message: $"预警规则场景不存在，WarningId=[{input.WarningId}]");
        }

        // 执行删除
        await _warningRuleRepository.DeleteTransportSceneAsync(input.WarningId, input.Id);

        // 处理删除后
        await _transportWarningHandler.HandleSceneDeletedAsync(rule, TransportWarningSceneBO.From(scene));

        return new UnifyResultDto(true);
    }


    /// <summary>
    /// 编辑预警规则项目（全量）
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("EditTransportWarningSceneRuleItem")]
    public async Task<UnifyResultDto> EditTransportWarningSceneRuleItem(EditTransportWarningSceneRuleItemInput input)
    {
        // 起始轨迹生成预警时间不能大于时效
        if (input.Items.Count > 0 && input.Items.Any(x => x.StartTrackWarningTimeSpan >= x.TransportTimeSpan))
        {
            throw new BusinessException(message: "起始轨迹生成预警时间不能大于等于时效，请检查");
        }

        var rule = await _warningRuleRepository.GetWarningRuleByIdAsync(input.WarningId, WarningRuleType.运输时效预警);
        if (rule == null)
        {
            throw new BusinessException(message: $"预警规则主体不存在，WarningId=[{input.WarningId}]");
        }

        var ruleScene = await _warningRuleRepository.GetTransportSceneAsync(input.WarningId, input.SceneId);
        if (ruleScene == null)
        {
            throw new BusinessException(message: $"运输时效规则场景不存在，WarningIdId=[{input.WarningId}] SceneId=[{input.SceneId}]");
        }

        var postRuleItems = TransportWarningSceneRuleItemBO.From(input);

        var tuples = postRuleItems.Select(x => (x.StartTrackStatusId, x.EndTrackStatusId)).ToHashSet();
        // 规则项目间不允许出现起始轨迹和截止轨迹都重复的项目
        if (tuples.Count < postRuleItems.Count)
        {
            throw new BusinessException(message: "不允许出现轨迹状态和终止轨迹状态都重复的规则项目");
        }

        // 起始和截止不能相同
        if (tuples.Any(x => x.StartTrackStatusId == x.EndTrackStatusId))
        {
            throw new BusinessException(message: "同一规则项目起始轨迹状态和截止轨迹状态不能相同");
        }

        var sceneBo = TransportWarningSceneBO.From(ruleScene);
        await _transportWarningHandler.HandleEditAsync(rule, sceneBo, postRuleItems);

        return new UnifyResultDto(true);
    }
}