using System.ComponentModel;
using System.Reflection;

namespace YD_WeChatApplet.Api.Utilities
{
    /// <summary>
    /// 工具
    /// </summary>
    public static class Tool
    {
        /// <summary>
        /// 获取枚举描述
        /// </summary>
        /// <param name="value"></param>
        /// <returns></returns>
        public static string GetDescription(this Enum value)
        {
            if (value == null)
            {
                throw new ArgumentNullException(nameof(value), "Enum value cannot be null");
            }

            // 获取字段信息
            FieldInfo field = value.GetType().GetField(value.ToString());

            if (field == null)
            {
                // 如果字段信息为空，返回默认的描述
                return "";
            }

            // 获取 DescriptionAttribute 特性
            var attributes = field.GetCustomAttributes(typeof(DescriptionAttribute), false);
            var attribute = attributes.FirstOrDefault() as DescriptionAttribute;

            // 如果特性为空，返回空字符串
            return attribute?.Description ?? "";
        }    /// <summary>
             /// 将秒数转换为 "X分钟Y秒" 的格式
             /// </summary>
             /// <param name="seconds">秒数</param>
             /// <returns>格式化后的字符串，如 "3分钟20秒"</returns>
        public static string ToMinutesSeconds(this int seconds)
        {
            if (seconds < 0)
                throw new ArgumentException("秒数不能为负数", nameof(seconds));

            int minutes = seconds / 60;
            int remainingSeconds = seconds % 60;

            return $"{minutes}分钟{remainingSeconds}秒";
        }

        /// <summary>
        /// 将秒数转换为 "X分钟Y秒" 的格式（适用于浮点数）
        /// </summary>
        /// <param name="seconds">秒数</param>
        /// <returns>格式化后的字符串，如 "3分钟20秒"</returns>
        public static string ToMinutesSeconds(this double seconds)
        {
            if (seconds < 0)
                throw new ArgumentException("秒数不能为负数", nameof(seconds));

            int totalSeconds = (int)Math.Round(seconds);
            return totalSeconds.ToMinutesSeconds();
        }

        /// <summary>
        /// 转换为 Unix 时间戳（秒）
        /// </summary>
        public static long ToUnixTimestamp(this DateTime dateTime)
        {
            return (long)(dateTime.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalSeconds;
        }

        /// <summary>
        /// 转换为 Unix 时间戳（毫秒）
        /// </summary>
        public static long ToUnixTimestampMilliseconds(this DateTime dateTime)
        {
            return (long)(dateTime.ToUniversalTime() - new DateTime(1970, 1, 1, 0, 0, 0, DateTimeKind.Utc)).TotalMilliseconds;
        }
    }
}