using CZFW.Framework.Logic;
using CZFW.Framework.Model.ViewModel;
using CZKJ.GBRS2.Entity;
using CZKJ.GBRS2.Interface;
using System;
using System.Collections.Generic;
using System.Text;
using System.Linq;
using CZFW.Framework.Model.Entity;

namespace CZKJ.GBRS2.Logic
{
    public class UserRoleNavMappingLogic : LogicBase<RoleMappingEntity>,IUserRoleNavMapping
    {
        public ResultModel AddNavByRole(int roleId, IList<int> navIds)
        {
            var existingIds = Queryable.Where(X=>X.RoleId== roleId).Select(x=>x.NavId).ToList();
            var noExistingIds = navIds.Where(x => !existingIds.Contains(x)).ToList();
            var roleNavs = new List<RoleMappingEntity>();
            foreach (var item in noExistingIds)
            {
                var entity = new RoleMappingEntity()
                {
                    RoleId= roleId,
                    NavId=item
                };
                roleNavs.Add(entity);
            }
            var res = AddEntities(roleNavs); 
            return res;
        }

        public IList<NavigationModel> GetNavigationTreeByRoleId(int roleId)
        {
            var list = (from x in Queryable where x.RoleId == roleId join nav in DbContext.Set<NavigationEntity>() on x.NavId equals nav.Id 
                        select new NavigationModel()
                        {
                            Id=nav.Id,
                            Icon=nav.Icon,
                            Mark=nav.Mark,
                            Name = nav.Name,
                            Url = nav.Url,
                            ParentMark=nav.ParentMark,
                            Description=nav.Description
                        }
                        ).ToList();
            var res = SetTree(list, "0");
            return res;
        }

        public ResultModel RemoveNavByRole(int roleId,int navId)
        {
            return RemoveEntities(x => x.RoleId == roleId && x.NavId == navId);
        }

        public IList<NavigationModel> SetTree(IList<NavigationModel> list, string parentMark)
        {
            var result = new List<NavigationModel>();
            foreach (var item in list)
            {
                if (item.Mark != "0" && item.ParentMark == parentMark)
                {
                    result.Add(item);
                    item.Children = SetTree(list, item.Mark);
                }
            }
            result = result.OrderByDescending(x => x.SortOrder).ToList();
            return result;
        }
    }
}