using FlexJobApi.Core;
using Furion.DatabaseAccessor;
using Furion.FriendlyException;
using Mapster;
using MediatR;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace FlexJobApi.CommonServer.Application
{
    /// <summary>
    /// 字典类别命令处理器
    /// </summary>
    public class DictionaryCategoryCommandHandler(
            IRepository<DictionaryCategory> rep,
            IRepository<DictionaryData> repDictionaryData
        ) :
        IRequestHandler<DeleteDictionaryCategoryCommand, int>,
        IRequestHandler<SaveDictionaryCategoryCommand, Guid>
    {
        private readonly IRepository<DictionaryCategory> rep = rep;
        private readonly IRepository<DictionaryData> repDictionaryData = repDictionaryData;

        /// <summary>
        /// 删除数据字典类别
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<int> Handle(DeleteDictionaryCategoryCommand request, CancellationToken cancellationToken)
        {
            return DbUtils.DeleteData<DictionaryCategory>(request, null, cancellationToken);
        }

        /// <summary>
        /// 保存数据字典类别
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        [UnitOfWork]
        public async Task<Guid> Handle(SaveDictionaryCategoryCommand request, CancellationToken cancellationToken)
        {
            var entity = await request.SaveData<DictionaryCategory, SaveDictionaryCategoryCommand>(
                 null,
                 it => it.Id != request.Id && it.Code == request.Code,
                 (entity) =>
                 {
                     if (request.Id.HasValue && entity.Code != request.Code)
                     {
                         throw Oops.Oh(EnumErrorCodeType.s400, "编号不可修改");
                         //var data = repDictionaryData.AsQueryable()
                         //   .Where(it => it.CategoryId == entity.Id)
                         //   .ToList();
                         //foreach (var item in data)
                         //{
                         //    item.Code = item.Code.Replace($"{entity.Code}-", $"{request.Code}-");
                         //}
                     }
                     request.Adapt(entity);
                 },
                 cancellationToken);
            return entity.Id;
        }
    }
}