using CZFW.Framework.Interface;
using CZFW.Framework.Model.Entity;
using CZFW.Framework.Model.ViewModel;
using System.Collections.Generic;
using System.Linq;
using CZFW.Framework.Model;

namespace CZFW.Framework.Logic
{
    public class UserRoleNavigationLogic : LogicBase<UserRoleNavigationEntity>, IUserRoleNavigation
    {
        public IList<NavigationModel> GetNavigationTreeByRoleId(int roleId)
        {
            var list = (from rn in GetQueryable()
                        join nav in DbContext.Set<NavigationEntity>()
                        on rn.NavigationId equals nav.Id
                        where rn.RoleId == roleId
                        select new NavigationModel()
                        {
                            Description = nav.Description,
                            ParentMark = nav.ParentMark,
                            Id = nav.Id,
                            Icon = nav.Icon,
                            Mark = nav.Mark,
                            Name = nav.Name,
                            SortOrder = nav.SortOrder??0,
                            Thumbnail = nav.Thumbnail,
                            Url = nav.Url
                        }).ToList();
            var res = SetTree(list, "0");
            return res;
        }

        public IList<NavigationModel> GetNavigationTreeByUserId(int userId)
        {
            var roles = DbContext.Set<UserRoleEntity>()
                .Where(x => x.UserId == userId)
                .Select(x => x.RoleId).ToList();
            var list = (from rn in GetQueryable()
                        join nav in DbContext.Set<NavigationEntity>()
                        on rn.NavigationId equals nav.Id
                        where roles.Contains(rn.RoleId)||rn.UserId==userId
                        select new NavigationModel()
                        {
                            Description = nav.Description,
                            ParentMark = nav.ParentMark,
                            Id = nav.Id,
                            Icon = nav.Icon,
                            Mark = nav.Mark,
                            Name = nav.Name,
                            SortOrder = nav.SortOrder??0,
                            Thumbnail = nav.Thumbnail,
                            Url = nav.Url
                        }).Distinct().ToList();
            var res = SetTree(list, "0");
            return res;
        }

        public ResultModel GrantRole(int roleId, int navId)
        {
            var res = new ResultModel();
            var count = GetCount(x => x.RoleId == roleId && x.NavigationId == navId && roleId != 0);
            if (count > 0)
            {
                res.Success = false;
                res.Message = "该角色已经觉有该授权！";
                return res;
            }
            var item = new UserRoleNavigationEntity()
            {
                RoleId = roleId,
                NavigationId = navId
            };
            var tp = AddEntity(item);
            return tp;
        }

        public ResultModel GrantRoleNavigations(int roleId, IList<int> navIds)
        {
            var exisitingIds = GetQueryable()
                .Where(x => x.RoleId == roleId && roleId != 0 && navIds.Contains(x.NavigationId))
                .Select(x => x.NavigationId).ToList();
            var nonExisitingIds = navIds.Where(x => !exisitingIds.Contains(x)).ToList();
            var roleNavs = new List<UserRoleNavigationEntity>();
            foreach (var item in nonExisitingIds)
            {
                var entity = new UserRoleNavigationEntity()
                {
                    NavigationId = item,
                    RoleId = roleId
                };
                roleNavs.Add(entity);
            }
            var res = AddEntities(roleNavs);
            return res;
        }

        public ResultModel GrantUser(int userId, int navId)
        {
            var res = new ResultModel();
            var count = GetCount(x => x.UserId == userId && x.NavigationId == navId && userId != 0);
            if (count > 0)
            {
                res.Success = false;
                res.Message = "该角色已经觉有该授权！";
                return res;
            }
            var item = new UserRoleNavigationEntity()
            {
                UserId = userId,
                NavigationId = navId
            };
            var tp = AddEntity(item);
            return tp;
        }

        public ResultModel GrantUserNavigations(int userId, IList<int> navIds)
        {
            var exisitingIds = GetQueryable()
               .Where(x => x.UserId == userId && userId != 0 && navIds.Contains(x.NavigationId))
               .Select(x => x.NavigationId).ToList();
            var nonExisitingIds = navIds.Where(x => !exisitingIds.Contains(x)).ToList();
            var roleNavs = new List<UserRoleNavigationEntity>();
            foreach (var item in nonExisitingIds)
            {
                var entity = new UserRoleNavigationEntity()
                {
                    NavigationId = item,
                    UserId = userId
                };
                roleNavs.Add(entity);
            }
            var res = AddEntities(roleNavs);
            return res;
        }

        public ResultModel RevokeRole(int roleId, int navId)
        {
            if (roleId == 0) return new ResultModel("请指定角色Id");
            var res = RemoveEntities(x => x.RoleId == roleId && navId == x.NavigationId);
            return res;
        }

        public ResultModel RevokeRoleNavigations(int roleId, IList<int> navIds)
        {
            if (roleId == 0)
                return new ResultModel() { Success = false, Message = "请提供正确角色Id" };
            var res = RemoveEntities(x => x.RoleId == roleId && navIds.Contains(x.NavigationId));
            return res;
        }

        public ResultModel RevokeUser(int userId, int navId)
        {
            if (userId == 0) return new ResultModel("请指定用户Id");
            var res = RemoveEntities(x => x.UserId == userId && navId == x.NavigationId);
            return res;
        }

        public ResultModel RevokeUserNavigations(int userId, IList<int> navIds)
        {
            if (userId == 0)
                return new ResultModel() { Success = false, Message = "请提供正确用户Id" };
            var res = RemoveEntities(x => x.UserId == userId && navIds.Contains(x.NavigationId));
            return res;
        }

        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;
        }
    }
}