using System;
using System.Collections.Generic;
using Dapper;
using DataModel.Helpers;
using DataModel.Models;

namespace DataModel.Process
{
    /// <summary>
    /// Status codes tracking functionality for JDE interface
    /// </summary>
    public partial class JDE
    {
        /// <summary>
        /// Fetches updated status codes
        /// </summary>
        /// <param name="lastUpdateDT">Timestamp of last updated record already imported</param>
        /// <returns>Streaming updated status codes</returns>
        public static IEnumerable<StatusCode> GetStatusCodes(DateTime? lastUpdateDT = null)
        {
            using (DDTek.Oracle.OracleConnection connection = new DDTek.Oracle.OracleConnection(Config.GIWCS))
            {
                connection.Open();

                var results = lastUpdateDT.HasValue ?
                    connection.Query<StatusCode>(queries["SQL_GET_STATUS_CODES_FILTERED"], new { dateUpdated = lastUpdateDT.Value.Date, timeUpdated = lastUpdateDT.Value.ToJDETime() }, buffered: false, commandTimeout: Config.QueryTimeout) :
                    connection.Query<StatusCode>(queries["SQL_GET_STATUS_CODES"], buffered: false, commandTimeout: Config.QueryTimeout);

                foreach (var result in results)
                {
                    yield return result;
                }
            }
        }
    }
}