using System;
using SqlSugar;
using Infrastructure.Attribute;
using Infrastructure.Extensions;
using DOAN.Model;
using DOAN.Model.Dto;
using DOAN.Model.MES.group;
using DOAN.Model.MES.group.Dto;
using DOAN.Repository;
using DOAN.Service.group.IService;
using System.Linq;
using DOAN.Common;

namespace DOAN.Service.group
{
    /// <summary>
    /// 岗位Service业务层处理
    /// </summary>
    [AppService(ServiceType = typeof(IGroupPostService), ServiceLifetime = LifeTime.Transient)]
    public class GroupPostService : BaseService<GroupPost>, IGroupPostService
    {
        /// <summary>
        /// 查询岗位列表
        /// </summary>
        /// <param name="parm"></param>
        /// <returns></returns>
        public PagedInfo<GroupPostDto> GetList(GroupPostQueryDto parm)
        {
            var predicate = Expressionable.Create<GroupPost>()
                .AndIF(!string.IsNullOrEmpty(parm.PostName), it => it.PostName.Contains(parm.PostName));

            ;

            var response = Queryable()
                .Where(predicate.ToExpression())
                .ToPage<GroupPost, GroupPostDto>(parm);

            return response;
        }


        /// <summary>
        /// 获取详情
        /// </summary>
        /// <param name="Id"></param>
        /// <returns></returns>
        public GroupPost GetInfo(string Id)
        {
            var response = Queryable()
                .Where(x => x.Id == Id)
                .First();

            return response;
        }

        /// <summary>
        /// 添加岗位
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public GroupPost AddGroupPost(GroupPost model)
        {
            model.Id = XueHua;
            if (string.IsNullOrEmpty(model.ParentId))
            {
                model.ParentId = "0";
            }

            return Context.Insertable(model).ExecuteReturnEntity();
        }

        /// <summary>
        /// 修改岗位
        /// </summary>
        /// <param name="model"></param>
        /// <returns></returns>
        public int UpdateGroupPost(GroupPost model)
        {
            //var response = Update(w => w.Id == model.Id, it => new GroupPost()
            //{
            //    PostName = model.PostName,
            //    Status = model.Status,
            //    Remark = model.Remark,
            //    CreatedBy = model.CreatedBy,
            //    CreatedTime = model.CreatedTime,
            //    UpdatedBy = model.UpdatedBy,
            //    UpdatedTime = model.UpdatedTime,
            //});
            //return response;
            return Update(model, true);
        }

        /// <summary>
        /// 删除岗位包括子
        /// </summary>
        /// <param name="ids"></param>
        /// <returns></returns>
        public int RemoveGroupPost(string[] ids)
        {
            List<GroupPost> all_nodes = Context.Queryable<GroupPost>().ToList();


            List<GroupPost> Descendants = GetDescendants(all_nodes, ids[0]);


            List<string> children = Descendants.Select(it => it.Id).ToList();
            children.Add(ids[0]);

            return Delete(children.ToArray());
        }
        public List<GroupPost> GetDescendants(List<GroupPost> nodes, string rootId)
        {
            var descendants = new List<GroupPost>();


            void FindChildren(GroupPost node)
            {
                var children = nodes.Where(n => n.ParentId == node.Id).ToList();
                foreach (var child in children)
                {
                    descendants.Add(child);
                    FindChildren(child);
                }
            }

            var rootNode = nodes.FirstOrDefault(n => n.Id == rootId);
            if (rootNode != null)
            {
                FindChildren(rootNode);
            }

            return descendants;
        }
    }
}