using System;
using System.Collections.Generic;
using System.Data.Common;
using System.Linq;
using System.Linq.Expressions;
using System.Threading.Tasks;
using YiSha.Data;
using YiSha.Data.Repository;
using YiSha.Entity.SystemManage;
using YiSha.Enum;
using YiSha.IService.SystemManage;
using YiSha.Model.Param.SystemManage;
using YiSha.Util;
using YiSha.Util.Extension;

namespace YiSha.Service.SystemManage
{
    public partial class MenuService
    {
        private IRepositoryFactory _baseRepository;
        private IMenuAuthorizeService _menuAuthorizeService;

        public MenuService(IRepositoryFactory baseRepository,IMenuAuthorizeService menuAuthorizeService)
        {
            _baseRepository = baseRepository;
            _menuAuthorizeService = menuAuthorizeService;
        }

        #region 获取数据
        public async Task<List<MenuEntity>> GetListPartial(MenuListParam param)
        {
            var expression = ListFilterPartial(param);
            var list = await _baseRepository.BaseRepository(dbConnectType).FindList<MenuEntity>(expression);
            return list.OrderBy(p => p.MenuSort).ToList();
        }

        public async Task<MenuEntity> GetEntityPartial(int id)
        {
            return await _baseRepository.BaseRepository(dbConnectType).FindEntity<MenuEntity>(id);
        }

        public async Task<int> GetMaxSortPartial(long parentId)
        {
            string where = string.Empty;
            if (parentId > 0)
            {
                where += " AND ParentId = " + parentId;
            }
            object result = await _baseRepository.BaseRepository(dbConnectType).FindObject("SELECT MAX(MenuSort) FROM SysMenu where BaseIsDelete = 0 " + where);
            int sort = result.ParseToInt();
            sort++;
            return sort;
        }

        public bool ExistMenuNamePartial(MenuEntity entity)
        {
            var expression = LinqExtensions.True<MenuEntity>();
            expression = expression.And(t => t.BaseIsDelete == 0);
            if (entity.Id.IsNullOrZero())
            {
                expression = expression.And(t => t.MenuName == entity.MenuName && t.MenuType == entity.MenuType);
            }
            else
            {
                expression = expression.And(t => t.MenuName == entity.MenuName && t.MenuType == entity.MenuType && t.Id != entity.Id);
            }
            return _baseRepository.BaseRepository(dbConnectType).IQueryable(expression).Count() > 0 ? true : false;
        }
        #endregion

        #region 提交数据
        public async Task SaveFormPartial(MenuEntity entity)
        {
            if (entity.Id.IsNullOrZero())
            {
                await entity.Create();
                await _baseRepository.BaseRepository(dbConnectType).Insert(entity);
            }
            else
            {
                await entity.Modify();
                await _baseRepository.BaseRepository(dbConnectType).Update(entity);
            }
        }

        public async Task DeleteFormPartial(string ids)
        {
            var db = await _baseRepository.BaseRepository(dbConnectType).BeginTrans();
            try
            {
                ids = $"{ string.Join(",", ids.Split(","))}";
                List<DbParameter> parameters = new List<DbParameter>();
                parameters.Add(DbParameterExtension.CreateDbParameter("@id", ids, dbConnectType));
                //删除菜单
                await DeleteFormByWhere(" FIND_IN_SET (id,@id) or FIND_IN_SET (parentid,@id) ", parameters);
                parameters.Clear();//清除上一个删除操作中的@baseisdelete数据
                parameters.Add(DbParameterExtension.CreateDbParameter("@menuid", ids, dbConnectType));
                //删除菜单权限
                await _menuAuthorizeService.DeleteFormByWhere(" FIND_IN_SET (menuid,@menuid) ", parameters);
                await db.CommitTrans();
            }
            catch
            {
                await db.RollbackTrans();
                throw;
            }
        }
        #endregion

        #region 私有方法
        private Expression<Func<MenuEntity, bool>> ListFilterPartial(MenuListParam param)
        {
            var expression = LinqExtensions.True<MenuEntity>();
            expression = expression.And(t => t.BaseIsDelete == (int)IsDeleteEnum.No);
            if (param != null)
            {
                if (!string.IsNullOrEmpty(param.MenuName))
                {
                    expression = expression.And(t => t.MenuName.Contains(param.MenuName));
                }
                if (param.MenuStatus > -1)
                {
                    expression = expression.And(t => t.MenuStatus == param.MenuStatus);
                }
            }
            return expression;
        }
        #endregion
    }
}