using F9WebAiTest.Application.Common;
using F9WebAiTest.Application.Dtos;
using F9WebAiTest.Application.Dtos.Prod;
using F9WebAiTest.Application.Services.Notice;
using F9WebAiTest.Domain.Common;
using F9WebAiTest.Domain.Entities;
using F9WebAiTest.Domain.Entities.Base;
using F9WebAiTest.Domain.Entities.Notice;
using F9WebAiTest.Domain.Entities.Prod;
using SysDept = F9WebAiTest.Domain.Entities.SYS.Departments;
using MediatR;

namespace F9WebAiTest.Application.Services.Prod;

public interface IHbjyService
{
    Task<PageResult<HbjyListItemDto>> GetPagedAsync(int pageIndex, int pageSize, DateTime? date, long? deptId);
    Task<HbjyEditDto> GetEditAsync(long lsjlId);
    Task SaveAsync(HbjySaveDto dto);
}

public class HbjyService : IHbjyService
{
    private readonly IRepository<LsjlRecord> _lsjlRepo;
    private readonly IRepository<HbjyLsjl> _hbjyLsjlRepo;
    private readonly IRepository<HbjyRecord> _hbjyRecordRepo;
    private readonly IRepository<SysDept.Department> _deptRepo;
    private readonly IRepository<CraftZhuangKou> _zkRepo;
    private readonly IMediator _mediator;

    public HbjyService(
        IRepository<LsjlRecord> lsjlRepo,
        IRepository<HbjyLsjl> hbjyLsjlRepo,
        IRepository<HbjyRecord> hbjyRecordRepo,
        IRepository<SysDept.Department> deptRepo,
        IRepository<CraftZhuangKou> zkRepo,
        IMediator mediator)
    {
        _lsjlRepo = lsjlRepo;
        _hbjyLsjlRepo = hbjyLsjlRepo;
        _hbjyRecordRepo = hbjyRecordRepo;
        _deptRepo = deptRepo;
        _zkRepo = zkRepo;
        _mediator = mediator;
    }

    public async Task<PageResult<HbjyListItemDto>> GetPagedAsync(int pageIndex, int pageSize, DateTime? date, long? deptId)
    {
        var lsjls = await _lsjlRepo.GetAllAsync();
        var q = lsjls.AsQueryable();
        if (date.HasValue) q = q.Where(x => x.WorkDate.Date == date.Value.Date);
        if (deptId.HasValue) q = q.Where(x => x.DeptId == deptId.Value);

        var depts = await _deptRepo.GetAllAsync();
        var deptDict = depts.ToDictionary(d => d.Id, d => d.Name);
        var zks = await _zkRepo.GetAllAsync();
        var zkDict = zks.ToDictionary(z => z.Id, z => z.ZhuangKouName);

        var sums = (await _hbjyLsjlRepo.GetAllAsync()).ToDictionary(h => h.LsjlId);

        var total = q.LongCount();
        var items = q.OrderByDescending(x => x.WorkDate).ThenByDescending(x => x.Id)
            .Skip((pageIndex - 1) * pageSize).Take(pageSize).ToList();

        return new PageResult<HbjyListItemDto>
        {
            Items = items.Select(x =>
            {
                sums.TryGetValue(x.Id, out var sum);
                return new HbjyListItemDto
                {
                    LsjlId = x.Id,
                    WorkDate = x.WorkDate,
                    DeptId = x.DeptId,
                    DeptName = deptDict.GetValueOrDefault(x.DeptId, ""),
                    Jizu = x.Jizu,
                    Huishu = x.Huishu,
                    Guige = x.Guige,
                    ZhuangKouName = zkDict.GetValueOrDefault(x.GyzkId, ""),
                    Yanse = x.Yanse,
                    Isbanche = x.Isbanche,
                    IsbancheName = x.Isbanche ? "半车" : "整车",
                    LuosiTime = x.LuosiTime,
                    Chetaishu = x.Chetaishu,
                    ChetaiStart = x.ChetaiStart,
                    ChetaiEnd = x.ChetaiEnd,
                    YingluPianshu = x.Chetaishu * 20,
                    IsChecked = sum != null,
                    Pianshu = sum?.Pianshu ?? 0,
                    Qingjie = sum?.Qingjie ?? 0,
                    Jiejing = sum?.Jiejing ?? 0,
                    Dengji = sum?.Dengji ?? ""
                };
            }).ToList(),
            Total = total, PageIndex = pageIndex, PageSize = pageSize
        };
    }

    public async Task<HbjyEditDto> GetEditAsync(long lsjlId)
    {
        var lsjl = await _lsjlRepo.GetByIdAsync(lsjlId);
        if (lsjl == null) throw new ServiceException("落丝记录不存在", 404);

        var dept = await _deptRepo.GetByIdAsync(lsjl.DeptId);
        var zk = await _zkRepo.GetByIdAsync(lsjl.GyzkId);

        var sum = await _hbjyLsjlRepo.FirstOrDefaultAsync(h => h.LsjlId == lsjlId);
        var records = await _hbjyRecordRepo.FindAsync(h => h.LsjlId == lsjlId);

        List<HbjyRecordDto> items;
        if (records.Count > 0)
        {
            items = records.OrderBy(r => r.Chetaihao).Select(ToDto).ToList();
        }
        else
        {
            items = new List<HbjyRecordDto>();
            for (int i = lsjl.ChetaiStart; i <= lsjl.ChetaiEnd; i++)
            {
                items.Add(new HbjyRecordDto { Chetaihao = i });
            }
        }

        return new HbjyEditDto
        {
            LsjlId = lsjl.Id,
            DeptName = dept?.Name ?? "",
            Jizu = lsjl.Jizu,
            Huishu = lsjl.Huishu,
            ZhuangKouName = zk?.ZhuangKouName ?? "",
            Yanse = lsjl.Yanse,
            Isbanche = lsjl.Isbanche,
            IsbancheName = lsjl.Isbanche ? "半车" : "整车",
            Guige = lsjl.Guige,
            ChetaiStart = lsjl.ChetaiStart,
            ChetaiEnd = lsjl.ChetaiEnd,
            Chetaishu = lsjl.Chetaishu,
            YingluPianshu = lsjl.Chetaishu * 20,
            Dengji = sum?.Dengji ?? "",
            Records = items
        };
    }

    public async Task SaveAsync(HbjySaveDto dto)
    {
        if (dto.LsjlId == 0) throw new ServiceException("落丝记录无效");
        var lsjl = await _lsjlRepo.GetByIdAsync(dto.LsjlId);
        if (lsjl == null) throw new ServiceException("落丝记录不存在", 404);

        if (dto.Records == null || dto.Records.Count == 0) throw new ServiceException("请先录入检验数据");

        var invalid = dto.Records.Where(i => i.Chetaihao < lsjl.ChetaiStart || i.Chetaihao > lsjl.ChetaiEnd).ToList();
        if (invalid.Count > 0) throw new ServiceException($"车台号超出范围 [{lsjl.ChetaiStart}-{lsjl.ChetaiEnd}]");

        // 计算每车台片数
        foreach (var item in dto.Records)
        {
            item.Pianshu = CalcPianshu(item);
        }

        var totalPianshu = dto.Records.Sum(x => x.Pianshu);
        if (totalPianshu == 0) throw new ServiceException("请至少录入一个洁净等级片数");

        // 物理删除旧明细
        var oldRecords = await _hbjyRecordRepo.FindAsync(h => h.LsjlId == dto.LsjlId);
        await _hbjyRecordRepo.HardDeleteRangeAsync(oldRecords);

        foreach (var item in dto.Records)
        {
            await _hbjyRecordRepo.AddAsync(new HbjyRecord
            {
                LsjlId = dto.LsjlId,
                Chetaihao = item.Chetaihao,
                YdYidu = item.YdYidu, YdErdu = item.YdErdu, YdSandu = item.YdSandu,
                Jj100 = item.Jj100, Jj95 = item.Jj95, Jj90 = item.Jj90, Jj85 = item.Jj85,
                Jj80 = item.Jj80, Jj75 = item.Jj75, Jj70 = item.Jj70, Jj65 = item.Jj65, Jj60 = item.Jj60,
                QjZycdTdc = item.QjZycdTdc,
                QjCycdFs = item.QjCycdFs, QjCycdDc = item.QjCycdDc, QjCycdNfc = item.QjCycdNfc,
                QjCycdDcj = item.QjCycdDcj, QjCycdZlx = item.QjCycdZlx,
                QjPtcdXc = item.QjPtcdXc, QjPtcdCj = item.QjPtcdCj, QjPtcdLx = item.QjPtcdLx, QjPtcdHjls = item.QjPtcdHjls,
                Pianshu = item.Pianshu
            });
        }

        // 汇总
        var sum = CalcSummary(dto.Records);
        var hbjyLsjl = await _hbjyLsjlRepo.FirstOrDefaultAsync(h => h.LsjlId == dto.LsjlId);
        if (hbjyLsjl == null)
        {
            hbjyLsjl = new HbjyLsjl { LsjlId = dto.LsjlId };
            await _hbjyLsjlRepo.AddAsync(hbjyLsjl);
        }
        hbjyLsjl.Pianshu = sum.Pianshu;
        hbjyLsjl.Qingjie = sum.Qingjie;
        hbjyLsjl.Jiejing = sum.Jiejing;
        hbjyLsjl.YdErdu = sum.YdErdu;
        hbjyLsjl.YdSandu = sum.YdSandu;
        hbjyLsjl.Dengji = dto.Dengji ?? "";

        await _hbjyLsjlRepo.UpdateAsync(hbjyLsjl);

        // 业务系统触发消息：发现特大糙时，通过 MediatR 创建"发现特大糙"消息，由 BackgroundService 投递
        var tdcCount = dto.Records.Sum(x => x.QjZycdTdc);
        if (tdcCount > 0)
        {
            await _mediator.Send(new CreateNotificationCommand
            {
                NotificationTypeCode = "TdcFound",
                BusinessType = "Hbjy",
                BusinessId = dto.LsjlId.ToString(),
                Title = $"发现特大糙：{lsjl.Guige} 规格",
                Content = $"落丝记录（机组 {lsjl.Jizu}、回数 {lsjl.Huishu}）黑板检验发现 {tdcCount} 个特大糙，请关注。",
                Priority = NotificationPriority.Urgent,
                CreatorId = 0,
                CreatorName = "系统"
            });
        }
    }

    // ==================== 计算逻辑 ====================

    private static HbjyRecordDto ToDto(HbjyRecord r) => new()
    {
        Chetaihao = r.Chetaihao,
        YdYidu = r.YdYidu, YdErdu = r.YdErdu, YdSandu = r.YdSandu,
        Jj100 = r.Jj100, Jj95 = r.Jj95, Jj90 = r.Jj90, Jj85 = r.Jj85,
        Jj80 = r.Jj80, Jj75 = r.Jj75, Jj70 = r.Jj70, Jj65 = r.Jj65, Jj60 = r.Jj60,
        QjZycdTdc = r.QjZycdTdc,
        QjCycdFs = r.QjCycdFs, QjCycdDc = r.QjCycdDc, QjCycdNfc = r.QjCycdNfc,
        QjCycdDcj = r.QjCycdDcj, QjCycdZlx = r.QjCycdZlx,
        QjPtcdXc = r.QjPtcdXc, QjPtcdCj = r.QjPtcdCj, QjPtcdLx = r.QjPtcdLx, QjPtcdHjls = r.QjPtcdHjls,
        Pianshu = r.Pianshu
    };

    // 片数 = 洁净等级各列之和
    private static int CalcPianshu(HbjyRecordDto item)
        => item.Jj100 + item.Jj95 + item.Jj90 + item.Jj85 + item.Jj80 + item.Jj75 + item.Jj70 + item.Jj65 + item.Jj60;

    // 清洁扣分（特大类1分/个，大类0.4分/个，小类0.1分/个）
    private static decimal CalcQingjieDeduction(HbjyRecordDto item)
    {
        decimal teda = item.QjZycdTdc * 1.0M;
        decimal dalei = (item.QjCycdFs + item.QjCycdDc + item.QjCycdNfc + item.QjCycdDcj + item.QjCycdZlx) * 0.4M;
        decimal xiaolei = (item.QjPtcdXc + item.QjPtcdCj + item.QjPtcdLx + item.QjPtcdHjls) * 0.1M;
        return teda + dalei + xiaolei;
    }

    private static HbjyLsjl CalcSummary(List<HbjyRecordDto> items)
    {
        int pianshu = items.Sum(x => x.Pianshu);

        // 清洁分 = (片数 - 总扣分) * 100 / 片数
        decimal totalDeduction = items.Sum(CalcQingjieDeduction);
        double qingjie = pianshu == 0 ? 0 : Math.Round((double)((pianshu - totalDeduction) * 100 / pianshu), 2, MidpointRounding.AwayFromZero);

        // 洁净分 = (片数*100 - 扣分总和*5) / 片数
        int jj95 = items.Sum(x => x.Jj95), jj90 = items.Sum(x => x.Jj90), jj85 = items.Sum(x => x.Jj85);
        int jj80 = items.Sum(x => x.Jj80), jj75 = items.Sum(x => x.Jj75), jj70 = items.Sum(x => x.Jj70);
        int jj65 = items.Sum(x => x.Jj65), jj60 = items.Sum(x => x.Jj60);
        decimal totalJiejingDeduction = 1 * jj95 + 2 * jj90 + 3 * jj85 + 4 * jj80 + 5 * jj75 + 6 * jj70 + 7 * jj65 + 8 * jj60;
        double jiejing = pianshu == 0 ? 0 : Math.Round((double)((pianshu * 100 - totalJiejingDeduction * 5) / (decimal)pianshu), 2, MidpointRounding.AwayFromZero);

        return new HbjyLsjl
        {
            Pianshu = pianshu,
            Qingjie = qingjie,
            Jiejing = jiejing,
            YdErdu = items.Sum(x => x.YdErdu),
            YdSandu = items.Sum(x => x.YdSandu)
        };
    }
}