using Dlhis.Basic.Device;
using Dlhis.Basic.Device.Request;
using Dlhis.Basic.Device.Services;
using Dlhis.Basic.Organization.Request;
using Dlhis.Basic.Organization.Response;
using Dlhis.Entity.Basic.Entity;
using Dlhis.Entity.Sys.Entities;
using Dlhis.Entity.Sys.Enums;
using Kurisu.AspNetCore.Authentication.Abstractions;
using Kurisu.AspNetCore.DataAccess.SqlSugar.Services;
using Kurisu.AspNetCore.Utils.Extensions;
using Mapster;

namespace Dlhis.Basic.Organization.Services.Implements;

public class GainfoGroupService : IGainfoGroupService
{
    private readonly IDbContext _dbContext;
    private readonly ICurrentUser _currentUser;
    private readonly INamedResolver _namedResolver;

    public GainfoGroupService(IDbContext dbContext, ICurrentUser currentUser, INamedResolver namedResolver)
    {
        _dbContext = dbContext;
        _currentUser = currentUser;
        _namedResolver = namedResolver;
    }

    public async Task<List<GainfoGroupTreeResponse>> GetTreeAsync()
    {
        var gainfoGroups = await _dbContext.Queryable<GainfoGroupEntity>()
            .Select<GainfoGroupTreeResponse>()
            .ToListAsync();

        var tops = gainfoGroups.Where(x => !x.PCode.HasValue).ToList();
        tops.ForEach(x => { RecursionGetNext(x, gainfoGroups); });

        return tops;
    }

    public async Task SaveAsync(GainfoGroupSaveRequest request)
    {
        await CheckDuplicateNameAsync(request);
        if (!request.Id.HasValue)
        {
            if (request.PCode.HasValue)
            {
                (await _dbContext.Queryable<GainfoGroupRelationshipEntity>().Where(x => x.GroupCode == request.PCode).AnyAsync()).ThrowIfTrue("上级已分配人员");
            }

            var entity = request.Adapt<GainfoGroupEntity>();
            entity.Code = Guid.NewGuid();
            await _dbContext.InsertAsync(entity);
        }
        else
        {
            var entity = await _dbContext.Queryable<GainfoGroupEntity>().Where(x => x.Id == request.Id).SingleAsync();
            request.Adapt(entity);
            await _dbContext.UpdateAsync(entity);
        }
    }

    public async Task<List<GainfoPageResponse>> GetGainfosByGroupAsync(Guid code)
    {
        var userNos = await _dbContext.Queryable<GainfoGroupRelationshipEntity>()
            .Where(x => x.GroupCode == code)
            .Select(x => x.UserNo)
            .ToListAsync();

        var list = await _dbContext.Queryable<GainfoEntity>()
            .Where(x => userNos.Contains(x.No))
            .Select<GainfoPageResponse>()
            .ToListAsync();

        return list;
    }

    public async Task AssignGainfosAsync(GainfoAssignRequest request)
    {
        if (request.UserNos.IsPresent())
        {
            var pGrp = await _dbContext.Queryable<GainfoGroupEntity>().Where(x => x.Code == request.GroupCode).FirstAsync();
            (pGrp?.Editable == false && pGrp?.IsDefault == true).ThrowIfTrue("不可分配人员到当前分组");
        }

        var existsNextGroup = await _dbContext.Queryable<GainfoGroupEntity>().Where(x => x.PCode == request.GroupCode).AnyAsync();
        existsNextGroup.ThrowIfTrue("存在下级分组,无法分配人员");

        var relations = await _dbContext.Queryable<GainfoGroupRelationshipEntity>()
            .Where(x => x.GroupCode == request.GroupCode)
            .ToListAsync();
        await _dbContext.DeleteAsync(relations);

        var userNos = await _dbContext.Queryable<GainfoEntity>()
            .Where(x => request.UserNos.Contains(x.No) || request.UserNos.Contains(x.Code)) //NO和工号匹配
            .Select(x => x.No)
            .ToListAsync();

        //(userNos.Count != request.UserNos.Count).ThrowIfTrue("存在权限外人员,无法添加");

        var entities = userNos.Select(x => new GainfoGroupRelationshipEntity
        {
            GroupCode = request.GroupCode,
            UserNo = x
        }).ToList();

        await _dbContext.InsertAsync(entities);

        await PermissionResetAsync(request.GroupCode);
    }


    private async Task PermissionResetAsync(Guid groupCode)
    {
        var gainfoGroups = RecursionHelper.HandlerGainfoGroupPreviousCodes(groupCode, await _dbContext.Queryable<GainfoGroupEntity>().ToListAsync()).Select(x => x.ToString());

        var dps = await _dbContext.Queryable<DevicePermissionEntity>()
            .Where(x => x.AssignType == AssignTypeEnumType.Group)
            .Where(x => gainfoGroups.Contains(x.AssignValue))
            .ToListAsync();

        var analyzeService = _namedResolver.GetService<IPermissionAnalyzeService>(PermissionAnalyzeConstants.GetTypeName(AssignTypeEnumType.Group));

        foreach (var devicePermissionGroup in dps.GroupBy(x => new { x.AssignValue, x.TenantId, x.UniqueType, x.Type }))
        {
            var assignValue = devicePermissionGroup.Key.AssignValue;
            var tenantId = devicePermissionGroup.Key.TenantId;
            var uniqueType = devicePermissionGroup.Key.UniqueType;
            var type = devicePermissionGroup.Key.Type;

            var codes = devicePermissionGroup.Select(x => x.UniqueValue).Distinct().ToList();

            await analyzeService.AnalyzeAsync(new DevicePermissionSaveRequest
            {
                AssignType = AssignTypeEnumType.Group,
                AssignValue = assignValue,
                UniqueType = uniqueType,
                Codes = codes,
                TenantId = tenantId,
                Type = type
            });
        }
    }


    public async Task<List<GainfoGroupTreeResponse>> GetGainfoGroupsByUserCodeAsync(string userCode)
    {
        var gainfo = await _dbContext.Queryable<GainfoEntity>().Where(x => x.Code == userCode).SingleAsync();
        var userNo = gainfo?.No;

        return await _dbContext.Queryable<GainfoGroupRelationshipEntity>()
            .LeftJoin<GainfoGroupEntity>((x, xg) => x.GroupCode == xg.Code)
            .Where((x, xg) => x.UserNo == userNo)
            .Select((x, xg) => new GainfoGroupTreeResponse
            {
                Id = x.Id,
                PCode = xg.PCode,
                Code = xg.Code,
                Name = xg.Name,
                Remark = xg.Remark,
                Editable = xg.Editable,
                IsDefault = xg.IsDefault,
                TenantId = xg.TenantId
            })
            .ToListAsync();
    }

    //******************************************************* help methods ***********************************************************

    /// <summary>
    /// 检查重名
    /// </summary>
    /// <param name="request"></param>
    /// <returns></returns>
    private async Task CheckDuplicateNameAsync(GainfoGroupSaveRequest request)
    {
        var exists = await _dbContext.Queryable<GainfoGroupEntity>()
            .Where(x => x.Name == request.Name)
            .WhereIF(request.Id.HasValue, x => x.Id != request.Id)
            .AnyAsync();

        exists.ThrowIfTrue($"重复组名{request.Name}");
    }


    private void RecursionGetNext(GainfoGroupTreeResponse current, List<GainfoGroupTreeResponse> gainfoGroups)
    {
        var currentTenantId = _currentUser.GetStringTenantId();
        var next = gainfoGroups.Where(x =>
        {
            if (x.PCode == current.Code)
            {
                if (x.TenantId.IsEmpty())
                {
                    return true;
                }
                else
                {
                    return x.TenantId == currentTenantId;
                }
            }

            return false;
        }).ToList();
        current.Next = next;
        foreach (var item in next)
        {
            RecursionGetNext(item, gainfoGroups);
        }
    }
}