using System.Linq.Expressions;
using Fake.Application.Dtos;
using InterfaceForward.Domain.Shared.Helpers;
using TrackCenter.Application.Dtos.TrackPush;
using TrackCenter.Application.Helpers;
using TrackCenter.Application.Services.Warning.Handlers;
using TrackCenter.Domain.Aggregates.OrderAggregate;
using TrackCenter.Domain.Aggregates.TrackPushAggregate;
using TrackCenter.Domain.Dtos.TrackPush;

namespace TrackCenter.Application.Services.TrackPush;

/// <summary>
/// 轨迹推送
/// </summary>
[ApiExplorerSettings(GroupName = "轨迹推送")]
[Route("/Track/PushConfig")]
public class TrackPushService(
    ITrackPushConfigRepository trackPushConfigRepository,
    TrackPushCacheService trackPushCacheService,
    IServiceProvider serviceProvider)
    : ApplicationServiceBase, ISingletonDependency
{
    /// <summary>
    /// 轨迹推送配置列表
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetPage")]
    public async Task<PagedResult<GetTrackPushConfigPageOutputVO>> GetPageAsync([FromBody] KeywordsInputVO input)
    {
        return await trackPushConfigRepository.GetPageAsync(input);
    }

    /// <summary>
    /// 轨迹推送配置内容列表
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("GetContentPage")]
    public async Task<PagedResult<GetTrackPushContentPageOutputVO>> GetContentPageAsync(
        [FromBody] GetTrackPushContentPageInputVO input)
    {
        return await trackPushConfigRepository.GetContentPageAsync(input);
    }

    /// <summary>
    /// 轨迹推送配置详情
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    [HttpGet("GetDetail")]
    public async Task<GetTrackPushConfigDetailOutputVO> GetDetailAsync(int id)
    {
        return await trackPushConfigRepository.GetDetailAsync(id);
    }

    /// <summary>
    /// 轨迹推送配置内容详情
    /// </summary>
    /// <param name="id"></param>
    /// <returns></returns>
    [HttpGet("GetContentDetail")]
    public async Task<GetTrackPushContentDetailOutputVO> GetContentDetailAsync(int id)
    {
        return await trackPushConfigRepository.GetContentDetailAsync(id);
    }

    /// <summary>
    /// 轨迹推送配置编辑
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("Edit")]
    public async Task<string> EditAsync([FromBody] EditTrackPushConfigInput input)
    {
        if (input.Options != OptionTypeNoNull.删除)
        {
            Expression<Func<TrackPushConfigEntity, bool>> isAnyExp = x => x.Customer == input.Customer;
            if (input.Options == OptionTypeNoNull.修改) isAnyExp = isAnyExp.And(x => x.Id != input.Id);

            if (await trackPushConfigRepository.IsAnyAsync(isAnyExp))
                throw new BusinessException(message: "配置已存在");
        }

        var msg = string.Empty;
        if (input.Options is OptionTypeNoNull.新增 or OptionTypeNoNull.修改)
        {
            var (success, message) = CheckDateTimeFormat(input.DateTimeFormat, input.DateTimeFormatType, input.TimezoneFormat);
            if (!success) throw new BusinessException(message: message);
            msg = message;
        }

        using var ts = TransacationHelper.GetReadCommitted();

        switch (input.Options)
        {
            case OptionTypeNoNull.新增:
                var trackPushEntity = ObjectMapper.Map<EditTrackPushConfigInput, TrackPushConfigEntity>(input);

                await trackPushConfigRepository.InsertReturnIdentityAsync(trackPushEntity);
                await trackPushCacheService.SetPushContentConfigsAsync(trackPushEntity.AppKey,
                    trackPushEntity.Customer);
                break;

            case OptionTypeNoNull.修改:
                var oldTrackPushEntity = await trackPushConfigRepository.GetFirstAsync(x => x.Id == input.Id) ??
                                         throw new BusinessException(message: "找不到数据");

                ObjectMapper.Map(input, oldTrackPushEntity);
                await trackPushConfigRepository.UpdateAsync(oldTrackPushEntity);
                await trackPushCacheService.SetPushContentConfigsAsync(oldTrackPushEntity.AppKey,
                    oldTrackPushEntity.Customer);
                break;

            case OptionTypeNoNull.删除:
                var entity = await trackPushConfigRepository.GetFirstAsync(x => x.Id == input.Id) ??
                             throw new BusinessException(message: "找不到数据");

                await trackPushConfigRepository.SoftDeleteAsync(x => x.Id == input.Id);
                await trackPushConfigRepository.SoftDeleteContentAsync(x => x.TrackPushConfigId == input.Id);
                await trackPushCacheService.SetPushContentConfigsAsync(entity.AppKey, entity.Customer);
                break;

            default:
                throw new ArgumentOutOfRangeException();
        }

        ts.Complete();
        return msg;
    }

    /// <summary>
    /// 轨迹推送配置内容编辑
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("EditContent")]
    public async Task<bool> EditContentAsync([FromBody] EditTrackPushContentInput input)
    {
        if (input.Options != OptionTypeNoNull.删除)
        {
            Expression<Func<TrackPushContentConfigEntity, bool>> isContentAnyExp = x =>
                x.TrackPushConfigId == input.TrackPushConfigId
                && x.OrderNoType == input.OrderNoType;
            if (input.Options == OptionTypeNoNull.修改) isContentAnyExp = isContentAnyExp.And(x => x.Id != input.Id);

            if (await trackPushConfigRepository.IsContentAnyAsync(isContentAnyExp.And(x =>
                    x.TrackContentId == input.TrackContentId)))
                throw new BusinessException(message: "TrackContentId配置已存在");
            if (!input.TrackContentCodeValue.IsNullOrWhiteSpace() &&
                await trackPushConfigRepository.IsContentAnyAsync(isContentAnyExp.And(x =>
                    x.TrackContentCodeValue == input.TrackContentCodeValue)))
                throw new BusinessException(message: "TrackContentCodeValue配置已存在");
            if (!input.TrackStatusValue.IsNullOrWhiteSpace() &&
                await trackPushConfigRepository.IsContentAnyAsync(isContentAnyExp.And(x =>
                    x.TrackStatusValue == input.TrackStatusValue)))
                throw new BusinessException(message: "TrackStatusValue配置已存在");
            if (!input.TrackContentValue.IsNullOrWhiteSpace() &&
                await trackPushConfigRepository.IsContentAnyAsync(isContentAnyExp.And(x =>
                    x.TrackContentValue == input.TrackContentValue)))
                throw new BusinessException(message: "TrackContentValue配置已存在");
            if (!input.TrackEnContentValue.IsNullOrWhiteSpace() &&
                await trackPushConfigRepository.IsContentAnyAsync(isContentAnyExp.And(x =>
                    x.TrackEnContentValue == input.TrackEnContentValue)))
                throw new BusinessException(message: "TrackEnContentValue配置已存在");
        }

        var trackPushConfigId = input.TrackPushConfigId;

        using var ts = TransacationHelper.GetReadCommitted();

        TrackPushContentConfigEntity? oldContentConfig = null;
        TrackPushContentConfigEntity? postContentConfig = null;
        switch (input.Options)
        {
            case OptionTypeNoNull.新增:
                {
                    var maxSort = await trackPushConfigRepository.ContentMaxAsync(x => x.Sort, x =>
                        x.OrderNoType == input.OrderNoType
                        && x.TrackPushConfigId == input.TrackPushConfigId
                    );

                    var entity = ObjectMapper.Map<EditTrackPushContentInput, TrackPushContentConfigEntity>(input);
                    entity.Sort = maxSort + 1;
                    await trackPushConfigRepository.InsertContentAsync(entity);
                    break;
                }

            case OptionTypeNoNull.修改:
                {
                    var entity = await trackPushConfigRepository.GetContentByIdAsync(input.Id!.Value) ??
                                 throw new BusinessException(message: "找不到数据");
                    oldContentConfig = entity.DeepCopy();
                    ObjectMapper.Map(input, entity);
                    await trackPushConfigRepository.UpdateContentAsync(entity);
                    postContentConfig = entity;
                    break;
                }

            case OptionTypeNoNull.删除:
                {
                    var entity = await trackPushConfigRepository.GetContentByIdAsync(input.Id!.Value) ??
                                 throw new BusinessException(message: "找不到数据");
                    oldContentConfig = entity;
                    trackPushConfigId = entity.TrackPushConfigId;
                    await trackPushConfigRepository.SoftDeleteContentAsync(x => x.Id == input.Id);
                    await trackPushConfigRepository.UpdateContentAsync(x => x.Sort == x.Sort - 1, x =>
                        x.OrderNoType == entity.OrderNoType
                        && x.TrackPushConfigId == entity.TrackPushConfigId
                        && x.Sort > entity.Sort
                    );
                    break;
                }

            default:
                throw new ArgumentOutOfRangeException();
        }

        var pushConfig = await trackPushConfigRepository.GetFirstAsync(x => x.Id == trackPushConfigId);
        if (pushConfig != null)
        {
            await trackPushCacheService.SetPushContentConfigsAsync(pushConfig.AppKey, pushConfig.Customer);
        }

        ts.Complete();

        // 引发预警计算
        WarningCalc_PushContentConfigChanged(pushConfig, oldContentConfig, postContentConfig);

        return true;
    }

    /// <summary>
    /// 轨迹推送配置内容排序
    /// </summary>
    /// <param name="input"></param>
    /// <returns></returns>
    [HttpPost("SortContent")]
    public async Task<bool> SortContentAsync([FromBody] SortTrackPushContentInput input)
    {
        var ids = input.SortInfo.Select(x => int.Parse(x.Key)).ToList();

        var trackPushContentEntities = await trackPushConfigRepository.GetContentListAsync(x => ids.Contains(x.Id));

        trackPushContentEntities.ForEach(item => { item.Sort = input.SortInfo.Single(x => x.Key == item.Id.ToString()).Value; });

        if (trackPushContentEntities.Count > 0)
        {
            using var ts = TransacationHelper.GetReadCommitted();

            await trackPushConfigRepository.UpdateContentRangeAsync(trackPushContentEntities);

            var pushConfig = await trackPushConfigRepository.GetFirstAsync(
                x => x.Id == trackPushContentEntities[0].TrackPushConfigId,
                y => new
                {
                    y.AppKey,
                    y.Customer
                });
            if (pushConfig != null)
            {
                await trackPushCacheService.SetPushContentConfigsAsync(pushConfig.AppKey, pushConfig.Customer);
            }

            ts.Complete();
        }

        return true;
    }


    private void WarningCalc_PushContentConfigChanged(TrackPushConfigEntity? pushConfig, TrackPushContentConfigEntity? oldContentConfig, TrackPushContentConfigEntity? postContentConfig)
    {
        // 推送配置主体不存在？
        if (pushConfig == null) return;

        // 说明是新增
        if (oldContentConfig == null) return;

        // 删除 postContentConfig == null 否则为更新（tips:判断更新差异化比较？）
        var contentConfigEntity = postContentConfig ?? oldContentConfig;

        _ = Task.Run(async () =>
        {
            var scope = serviceProvider.CreateScope();
            try
            {
                var handler = scope.ServiceProvider.GetRequiredService<IReturnWarningHandler>();
                await handler.PushConfigChangedHandleAsync(pushConfig, contentConfigEntity);
            }
            catch (Exception ex)
            {
                Log.Error(ex.ToString());
            }
            finally
            {
                scope.Dispose();
            }
        });
    }

    private static (bool Success, string Message) CheckDateTimeFormat(string? dateTimeFormat, int? dateTimeFormatType, string? timezoneFormat)
    {
        const int defaultTimeZone = 8;
        var dateTime = DateTime.Now;
        string dateStr;

        try
        {
            if (dateTimeFormatType == (int) DateTimeFormatEnum.Timestamp)
            {
                dateStr = DateTimeHelper.ConvertToUnixTimestamp(dateTime).ToString();
                return (true, $"格式化样例：{dateStr}");
            }

            if (dateTimeFormatType == (int) DateTimeFormatEnum.DateTimeAndTimezone)
            {
                // 没时间有时区，出错
                if (string.IsNullOrWhiteSpace(dateTimeFormat) && !string.IsNullOrWhiteSpace(timezoneFormat))
                    return (false, "如果填写了时区格式，那么时间格式是必须的");

                // 只有时间
                if (!string.IsNullOrWhiteSpace(dateTimeFormat) && string.IsNullOrWhiteSpace(timezoneFormat))
                {
                    var datetimeStr = DateTimeHelper.FormatDateTime(dateTime, dateTimeFormat);
                    return (true, $"格式化样例：{datetimeStr}");
                }

                // 时间和时区同时存在
                if (!string.IsNullOrWhiteSpace(dateTimeFormat) && !string.IsNullOrWhiteSpace(timezoneFormat))
                {
                    var zoneStr = DateTimeHelper.TimezoneFormat(defaultTimeZone, timezoneFormat);
                    var datetimeStr = DateTimeHelper.FormatDateTime(dateTime, dateTimeFormat);
                    dateStr = $"{datetimeStr} {zoneStr}";
                    return (true, $"格式化样例：{dateStr}");
                }
            }
        }
        catch (Exception e)
        {
            return (false, $"时间格式错误请检查：{e.Message}");
        }

        // 默认情况
        dateTimeFormat ??= "yyyy-MM-ddTHH:mm:ss.fffK";
        dateStr = dateTime.ToString(dateTimeFormat);
        return (true, $"格式化样例：{dateStr}");
    }
}