using Kdbndp.TypeHandlers;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace ReZero.SuperAPI 
{
    internal class BizDeleteObject : CommonDataService, IDataService
    {
        public async Task<object> ExecuteAction(DataModel dataModel)
        {
            var db = App.GetDbTableId(dataModel.TableId) ?? App.Db;
            var type = await EntityGeneratorManager.GetTypeAsync(dataModel.TableId);
            base.InitDb(type, db);
            base.InitData(type, db, dataModel);
            var entity = db.EntityMaintenance.GetEntityInfo(type);
            if (!entity.Columns.Any(it => it.PropertyName.EqualsCase(nameof(DbBase.IsDeleted))))
            {
                throw new Exception(TextHandler.GetCommonText(type.Name + "没有IsDeleted属性不能逻辑删除", type.Name + "Cannot be logically deleted without IsDeleted attribute"));
            }
            CheckSystemData(db, dataModel, type, entity);
            var column = entity.Columns.FirstOrDefault(it => it.PropertyName.EqualsCase(nameof(DbBase.IsDeleted)));
            column.PropertyInfo.SetValue(dataModel.Data, true);
            var result = db.UpdateableByObject(dataModel.Data)
                    .UpdateColumns("isdeleted")
                    .ExecuteCommandAsync();
            base.ClearAll(dataModel);
            return GetResult(dataModel, result);
        }

        private static object GetResult(DataModel dataModel, Task<int> result)
        {
            if (dataModel.ResultType == SqlResultType.AffectedRows)
            {
                return result;
            }
            else
            {
                return true;
            }
        }
    }
}