using System;
using System.Collections.Generic;
using System.Linq;
using System.Threading.Tasks;
using Znyc.Recruitment.Admin.Commons.Cache;
using Znyc.Recruitment.Admin.Commons.Mapping;
using Znyc.Recruitment.Admin.Commons.Services;
using Znyc.Recruitment.Admin.Security.Dtos;
using Znyc.Recruitment.Admin.Security.Entitys;
using Znyc.Recruitment.Admin.Security.IRepositories;
using Znyc.Recruitment.Admin.Security.IServices;

namespace Znyc.Recruitment.Admin.Security.Services
{
    public class DictionaryService : BaseService<DictionaryEntity, DictionaryOutputDto, long>, IDictionaryService
    {
        private readonly IDictionaryRepository _repository;

        public DictionaryService(IDictionaryRepository repository) : base(repository)
        {
            _repository = repository;
        }

        /// <summary>
        ///     获取功能菜单适用于Vue 树形列表
        /// </summary>
        /// <returns></returns>
        public async Task<List<DictionaryOutputDto>> GetAllDictionaryTreeTable()
        {
            List<DictionaryOutputDto> reslist = new List<DictionaryOutputDto>();
            IEnumerable<DictionaryEntity> diclist = await _repository.GetListWhereAsync(" IsDeleted = 0");
            List<DictionaryEntity> list = diclist.OrderBy(t => t.Sort).ToList();
            List<DictionaryEntity> oneDictionaryList = list.FindAll(t => t.ParentId == 0);
            foreach (DictionaryEntity item in oneDictionaryList)
            {
                DictionaryOutputDto dicTreeTableOutput = new DictionaryOutputDto();
                dicTreeTableOutput = item.MapTo<DictionaryOutputDto>();
                dicTreeTableOutput.Children = GetSubDictionary(list, item.Id).ToList();
                reslist.Add(dicTreeTableOutput);
            }
            await SyncDictionaryCache();
            return reslist;
        }

        /// <summary>
        ///     获取子集，递归调用
        /// </summary>
        /// <param name="data"></param>
        /// <param name="ParentId">父级Id</param>
        /// <returns></returns>
        private List<DictionaryOutputDto> GetSubDictionary(List<DictionaryEntity> data, long ParentId)
        {
            List<DictionaryOutputDto> list = new List<DictionaryOutputDto>();
            DictionaryOutputDto dictionaryOutputDto = new DictionaryOutputDto();
            List<DictionaryEntity> ChilList = data.FindAll(t => t.ParentId == ParentId);
            foreach (DictionaryEntity entity in ChilList)
            {
                dictionaryOutputDto = entity.MapTo<DictionaryOutputDto>();
                dictionaryOutputDto.Children = GetSubDictionary(data, entity.Id).OrderBy(t => t.Sort)
                    .MapTo<DictionaryOutputDto>();
                list.Add(dictionaryOutputDto);
            }

            return list;
        }

        /// <summary>
        ///     根据编码查询字典分类
        /// </summary>
        /// <param name="enCode"></param>
        /// <returns></returns>
        public async Task<DictionaryEntity> GetByEnCodAsynce(string enCode)
        {
            return await _repository.GetByEnCodAsynce(enCode);
        }

        /// <summary>
        ///     更新时判断分类编码是否存在（排除自己）
        /// </summary>
        /// <param name="enCode">分类编码</param
        /// <param name="id">主键Id</param>
        /// <returns></returns>
        public async Task<DictionaryEntity> GetByEnCodAsynce(string enCode, long id)
        {
            return await _repository.GetByEnCodAsynce(enCode, id);
        }

        /// <summary>
        ///     查询单条数据字典
        /// </summary>
        /// <param name="id"></param>
        /// <returns></returns>
        public async Task<DictionaryOutputDto> GetDictionaryById(long id)
        {
            DictionaryOutputDto result = (await _repository.GetSingleOrDefaultAsync(x => x.Id == id && x.IsDeleted == false)).MapTo<DictionaryOutputDto>();
            return result;
        }

        /// <summary>
        ///     根据ParentId查询数据字典列表
        /// </summary>
        /// <param name="pid"></param>
        /// <returns></returns>
        public async Task<List<DictionaryListOutput>> GetListByPidAsync(long pid)
        {
            List<DictionaryListOutput> list = await SyncDictionaryCache();
            list = list.Where(x => x.ParentId == pid).ToList();
            return list;
        }

        /// <summary>
        ///     同步缓存
        /// </summary>
        /// <returns></returns>
        public async Task<List<DictionaryListOutput>> SyncDictionaryCache()
        {
            CacheHelper cacheHelper = new CacheHelper();
            List<DictionaryListOutput> list = cacheHelper.Get<List<DictionaryListOutput>>("dictionary:list");
            if (list == null || list.Count < 1)
            {
                IEnumerable<DictionaryEntity> dicList = await repository.GetListWhereAsync(" IsDeleted=0 and IsEnabled=1 order by Sort");
                list = dicList.MapTo<DictionaryListOutput>();
                cacheHelper.Add("dictionary:list", list, TimeSpan.FromDays(30));
            }

            return list;
        }
    }
}