HanvonAttendanceService/MachineUserDeleteSettings.cs

using System;
using System.Configuration;

namespace HanvonF710XAttendanceService
{
    internal static class MachineUserDeleteSettings
    {
        public const int DefaultBatchSize = 20;
        public const int DefaultHttpTimeoutMs = 60000;

        public static int GetBatchSize()
        {
            return GetPositiveInt("DEVICE_DELETE_BATCH_SIZE", DefaultBatchSize);
        }

        public static int GetHttpTimeoutMs()
        {
            return GetPositiveInt("DEVICE_HTTP_TIMEOUT_MS", DefaultHttpTimeoutMs);
        }

        private static int GetPositiveInt(string key, int defaultValue)
        {
            try
            {
                var raw = ConfigurationManager.AppSettings[key];
                if (string.IsNullOrWhiteSpace(raw))
                {
                    return defaultValue;
                }

                return int.TryParse(raw.Trim(), out int value) && value > 0 ? value : defaultValue;
            }
            catch
            {
                return defaultValue;
            }
        }
    }
}