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

namespace FlexJobApi.Application
{
    /// <summary>
    /// 数据字典命令处理器
    /// </summary>
    public class DictionaryDataCommandHandler :
        IRequestHandler<SaveDictionaryDataCommand, Guid>,
        IRequestHandler<SetDictionaryDataIsDisabledCommand, int>

    {
        /// <summary>
        /// 保存数据字典
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<Guid> Handle(SaveDictionaryDataCommand request, CancellationToken cancellationToken)
        {
            return request.SaveData<DictionaryData, SaveDictionaryDataCommand>(
                it =>
                    it.CategoryId == request.CategoryId
                    && it.ParentId == request.ParentId
                    && it.Code == request.Code
                    && it.Content == request.Content
                    && it.Id != request.Id,
                (entity) =>
                {
                    entity.Path = DbUtils.GetTreeDataPath<DictionaryData>(request.ParentId, cancellationToken).Result;
                    if (request.Id.HasValue)
                    {
                        DbUtils.UpdateTreeDataChildrenPath<DictionaryData>(
                           $"{entity.Path}/{entity.Code}/",
                           $"{entity.Path}/{request.Code}/",
                           cancellationToken).Wait();
                    }
                    request.Adapt(entity);
                },
                cancellationToken);
        }

        /// <summary>
        /// 设置数据字典是否禁用
        /// </summary>
        /// <param name="request"></param>
        /// <param name="cancellationToken"></param>
        /// <returns></returns>
        public Task<int> Handle(SetDictionaryDataIsDisabledCommand request, CancellationToken cancellationToken)
        {
            return request.SetIsDisabled<DictionaryData>(cancellationToken: cancellationToken);
        }
    }
}