using Dlhis.Basic.Organization.Request;
using Dlhis.Basic.Organization.Response;
using Dlhis.Entity.Basic.Entity;
using Dlhis.Entity.Basic.Enums;
using Kurisu.AspNetCore.Utils.Extensions;
using Kurisu.Core.DataAccess.Dto;
using Kurisu.Core.User.Abstractions;
using Kurisu.SqlSugar.Attributes;
using Kurisu.SqlSugar.Extensions;
using Kurisu.SqlSugar.Services;
using Mapster;

namespace Dlhis.Basic.Organization.Services.Implements;

public class GainfoService : IGainfoService
{
    private readonly IGainfoStore _gainfoStore;
    private readonly IDbContext _dbContext;
    private readonly ICurrentUser _currentUser;

    public GainfoService(IGainfoStore gainfoStore, IDbContext dbContext, ICurrentUser currentUser)
    {
        _gainfoStore = gainfoStore;
        _dbContext = dbContext;
        _currentUser = currentUser;
    }

    /// <summary>
    /// 档案分页
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    public async Task<Pagination<GainfoPageResponse>> GetPageAsync(GainfoPageRequest request)
    {
        request.DepartmentNos = await GetRecursionDepartmentNosAsync(request.DepartmentNos);

        var page = await _gainfoStore.Queryable(request.Status)
            .WhereIF(request.DepartmentNos.IsPresent(), gainfo => request.DepartmentNos.Contains(gainfo.DepartmentNo))
            .Select<GainfoPageResponse>()
            .ToPageListAsync(request);

        return page;
    }

    /// <summary>
    ///保存档案号
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    public async Task SaveAsync(List<GainfoSaveRequest> request)
    {
        //todo check
        var entities = request.Adapt<List<GainfoEntity>>();
        entities.ForEach(x =>
        {
            if (x.No.IsEmpty())
            {
                x.No = "F" + Guid.NewGuid().ToString();
            }
        });

        await _gainfoStore.InsertAsync(entities);
    }


    /// <summary>
    ///修改档案号
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    public async Task UpdateAsync(GainfoSaveRequest request)
    {
        var gainfo = await _gainfoStore.Queryable(request.GainfoStatus).Where(x => x.Id == request.Id).FirstAsync();
        gainfo.ThrowIfNull("档案数据不存在,无法更新");

        request.Adapt(gainfo);
        await _gainfoStore.UpdateAsync(gainfo);
    }

    /// <summary>
    /// 正式转离职
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    [Transactional]
    public async Task DimissionAsync(GainfoDImissionRequest request)
    {
        var gainfo = await _gainfoStore.Queryable(GainfoStatusEnumType.Working)
            .Where(x => x.No == request.UserId)
            .FirstAsync();

        gainfo.ThrowIfNull("该档案不存在");

        //添加到离职表
        await _gainfoStore.InsertAsync(gainfo, GainfoStatusEnumType.Leave);
        //删除原数据
        await _gainfoStore.DeleteAsync(gainfo, GainfoStatusEnumType.Working);
    }

    /// <summary>
    /// 临时转正式
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    /// <exception cref="NotImplementedException"></exception>
    public async Task OnboardingAsync(GainfoDImissionRequest request)
    {
        var gainfo = await _gainfoStore.Queryable(GainfoStatusEnumType.External)
            .Where(x => x.No == request.UserId)
            .FirstAsync();

        gainfo.ThrowIfNull($"该档案不存在");

        //添加到正式表,不删除原数据,留档处理
        await _gainfoStore.InsertAsync(gainfo);
    }

    public async Task<GainfoCurrentResponse> CurrentUserInfoAsync()
    {
        var identityId = _currentUser.GetIntSubjectId();

        var gainfo = await _gainfoStore.Queryable(GainfoStatusEnumType.Working)
               .LeftJoin<DepartmentEntity>((ga, department) => ga.DepartmentNo == department.No)
               .LeftJoin<CanteenUserEntity>((ga, department, mealUser) => ga.No == mealUser.UserNo)
               .Where((ga, department) => ga.IdentityUserId == identityId)
               .Select((ga, department, mealUser) => new GainfoCurrentResponse
               {
                   UserNo = ga.No,
                   Birthday = ga.Birthday,
                   DepartmentNo = department.No,
                   DepartmentName = department.Name,
                   Gender = ga.Gender,
                   UserCode = ga.Code,
                   UserName = ga.Name,
                   MealInfo = new GainfoCurrentMealInfoResponse
                   {
                       Balance = mealUser.Balance
                   }
               })
               .FirstAsync();

        return gainfo;
    }


    //-------------------------------------------help methods ------------------------------------------------

    /// <summary>
    /// 递归获取部门No
    /// </summary>
    /// <param name="departmentNos"></param>
    /// <returns></returns>
    private async Task<List<string>> GetRecursionDepartmentNosAsync(List<string> departmentNos)
    {
        if (departmentNos == null || departmentNos.Count == 0)
        {
            return new List<string>();
        }

        var departments = await _dbContext.Queryable<DepartmentEntity>().ToListAsync();
        var currentNos = departments.Where(x => departmentNos.Contains(x.No)).ToList();

        foreach (var item in currentNos)
        {
            RecursionGetNext(item.No, departments, departmentNos);
        }

        return departmentNos.Distinct().ToList();

        void RecursionGetNext(string currentCode, List<DepartmentEntity> departments, List<string> result)
        {
            var next = departments.Where(x => x.PNo == currentCode).ToList();
            foreach (var item in next)
            {
                result.Add(item.No);
            }

            foreach (var item in next)
            {
                RecursionGetNext(item.No, departments, result);
            }
        }
    }
}