namespace LTEMvcApp.Models
{
    /// <summary>
    /// 日志常量
    /// </summary>
    public static class LogConstants
    {
        #region 全局常量

        /// <summary>
        /// 最大日志数量
        /// </summary>
        public const int LOGS_MAX = 2000000;

        /// <summary>
        /// 日志范围
        /// </summary>
        public static readonly List<long[]> LOGS_RANGE = new();

        /// <summary>
        /// 日志信息
        /// </summary>
        public static readonly List<int> LOGS_INFO = new();

        /// <summary>
        /// 日志层
        /// </summary>
        public static readonly List<string> LOGS_LAYERS = new();

        /// <summary>
        /// 导出时间格式
        /// </summary>
        public static string EXPORT_TIME_FORMAT = "yyyy-MM-dd HH:mm:ss.fff";

        /// <summary>
        /// 是否启用内联缓存
        /// </summary>
        public static bool INLINE_CACHE_ENABLED = false;

        #endregion

        #region 应用模式

        /// <summary>
        /// 应用模式
        /// </summary>
        public static class AppMode
        {
            public const string Web = "web";
            public const string App = "app";
        }

        /// <summary>
        /// 导出模式
        /// </summary>
        public static class ExportMode
        {
            public const string Zip = "zip";
            public const string Text = "text";
        }

        #endregion

        #region 字体和样式

        /// <summary>
        /// 默认字体
        /// </summary>
        public const string DEFAULT_FONT = "13px helvetica, arial, verdana, sans-serif";

        /// <summary>
        /// 默认颜色
        /// </summary>
        public const string DEFAULT_COLOR = "#000000";

        #endregion

        #region 时间相关

        /// <summary>
        /// 时间戳基准（2000-01-01 00:00:00）
        /// </summary>
        public const long TIMESTAMP_BASE = 946681200000;

        /// <summary>
        /// 默认时间原点
        /// </summary>
        public const string DEFAULT_TIME_ORIGIN = "00:00:00.000";

        #endregion

        #region 客户端相关

        /// <summary>
        /// 默认重连延迟（毫秒）
        /// </summary>
        public const int DEFAULT_RECONNECT_DELAY = 2500;

        /// <summary>
        /// 默认重连延迟（毫秒）
        /// </summary>
        public const int DEFAULT_RECONNECT_DELAY_APP = 5000;

        /// <summary>
        /// HFN回绕阈值
        /// </summary>
        public const int HFN_WRAP_THRESHOLD = 512;

        #endregion

        #region 日志级别

        /// <summary>
        /// 日志级别名称
        /// </summary>
        public static readonly string[] LOG_LEVEL_NAMES = { "none", "error", "warn", "info", "debug" };

        /// <summary>
        /// 日志方法名称
        /// </summary>
        public static readonly string[] LOG_METHODS = { "error", "warn", "info", "debug", "prof" };

        #endregion

        #region 性能相关

        /// <summary>
        /// 大日志列表阈值
        /// </summary>
        public const int LARGE_LOG_THRESHOLD = 500000;

        /// <summary>
        /// 小日志列表阈值
        /// </summary>
        public const int SMALL_LOG_THRESHOLD = 50000;

        /// <summary>
        /// 日志模块列表最大长度
        /// </summary>
        public const int LOG_MODULE_LIST_MAX = 20;

        #endregion

        #region 文件相关

        /// <summary>
        /// 支持的文件类型
        /// </summary>
        public static class FileTypes
        {
            public const string Binary = "bin";
            public const string Base64 = "base64";
        }

        /// <summary>
        /// 文件大小单位
        /// </summary>
        public static class FileSizeUnits
        {
            public const string Kilobyte = "K";
            public const string Megabyte = "M";
            public const string Gigabyte = "G";
        }

        #endregion

        #region 正则表达式

        /// <summary>
        /// 参数解析正则表达式
        /// </summary>
        public const string PARAMS_REGEX = @"\s*([^=]+)=([^,\s]+)";

        #endregion

        #region 事件相关

        /// <summary>
        /// 事件类型
        /// </summary>
        public static class EventTypes
        {
            public const string NewLogs = "newLogs";
            public const string SelectLog = "selectLog";
            public const string All = "*";
        }

        #endregion

        #region 浏览器相关

        /// <summary>
        /// 鼠标滚轮事件
        /// </summary>
        public static class MouseWheelEvents
        {
            public const string Firefox = "DOMMouseScroll";
            public const string Other = "mousewheel";
        }

        #endregion

        #region 工具方法

        /// <summary>
        /// 获取日志级别名称
        /// </summary>
        /// <param name="level">级别值</param>
        /// <returns>级别名称</returns>
        public static string GetLogLevelName(int level)
        {
            if (level >= 0 && level < LOG_LEVEL_NAMES.Length)
                return LOG_LEVEL_NAMES[level];
            return "unknown";
        }

        /// <summary>
        /// 获取日志级别值
        /// </summary>
        /// <param name="levelName">级别名称</param>
        /// <returns>级别值</returns>
        public static int GetLogLevelValue(string levelName)
        {
            for (int i = 0; i < LOG_LEVEL_NAMES.Length; i++)
            {
                if (LOG_LEVEL_NAMES[i] == levelName)
                    return i;
            }
            return -1;
        }

        /// <summary>
        /// 检查是否为持续时间戳
        /// </summary>
        /// <param name="timestamp">时间戳</param>
        /// <returns>是否为持续时间</returns>
        public static bool IsDurationTimestamp(long timestamp)
        {
            return timestamp < TIMESTAMP_BASE;
        }

        /// <summary>
        /// 获取默认重连延迟
        /// </summary>
        /// <param name="mode">应用模式</param>
        /// <returns>重连延迟</returns>
        public static int GetDefaultReconnectDelay(string mode)
        {
            return mode == AppMode.App ? DEFAULT_RECONNECT_DELAY_APP : DEFAULT_RECONNECT_DELAY;
        }

        #endregion
    }
}