using JiangSu.Models;
using System;
using System.Collections.Generic;
using System.Data;
using System.Data.SQLite;
using System.Linq;
using System.Web;

namespace JiangSu.cs
{
    public class GridDAL
    {
        public static List<Grid> SelectAll()
        {
            string sql = "select * from grid";

            DataTable dt = SQLiteHelper.GetDataTable(sql);
            if (null == dt || dt.Rows.Count == 0)
            {
                return null;
            }

            List<Grid> list = ModelHandler.FillModel<Grid>(dt);

            return list;
        }

        public static Grid SelectById(long id)
        {
            string sql = "select * from grid where id = @id";

            SQLiteParameter param = new SQLiteParameter("@id");
            param.Value = id;

            DataTable dt = SQLiteHelper.GetDataTable(sql, param);
            if (null == dt || dt.Rows.Count == 0)
            {
                return null;
            }

            List<Grid> list = ModelHandler.FillModel<Grid>(dt);

            return null == list || list.Count == 0 ? null : list[0];
        }

        public static int DeleteByIds(List<int> ids)
        {
            string str = string.Join(",", ids.ToArray());
            string sql = string.Format("delete from grid where id in ({0})", str);

            return SQLiteHelper.ExecuteNonQuery(sql);
        }

        public static int DelAll()
        {
            return SQLiteHelper.ExecuteNonQuery("delete from grid");
        }

        public static int Insert(Grid grid)
        {
            string sql = "insert into grid (json) values (@json); select last_insert_rowid();";
            SQLiteParameter[] sqlParams = Tools.GetSQLiteParams<Grid>(sql, grid);

            object obj = SQLiteHelper.ExecuteScalar(sql, sqlParams);
            return null == obj ? 0 : Convert.ToInt32(obj);
        }

        public static int UpdateById(Grid grid)
        {
            string sql = "update grid set json = @json where id = @id";
            SQLiteParameter[] sqlParams = Tools.GetSQLiteParams<Grid>(sql, grid);

            return SQLiteHelper.ExecuteNonQuery(sql, sqlParams);
        }
    }
}