namespace Model.Dto.Inspection
{
    /// <summary>
    /// 告警趋势统计项（按日/周/月分桶）
    /// </summary>
    public class AlertTrendItemDto
    {
        /// <summary>时间桶（日:yyyy-MM-dd / 周:yyyy-Www / 月:yyyy-MM）</summary>
        public string Bucket { get; set; }

        /// <summary>告警总数</summary>
        public int Total { get; set; }

        /// <summary>信息级数量</summary>
        public int InfoCount { get; set; }

        /// <summary>警告级数量</summary>
        public int WarningCount { get; set; }

        /// <summary>紧急级数量</summary>
        public int UrgentCount { get; set; }

        /// <summary>未闭环数量（未确认+已确认未处理）</summary>
        public int UnhandledCount { get; set; }
    }

    /// <summary>
    /// 告警分布统计项（按设备/类型/级别/来源维度）
    /// </summary>
    public class AlertDistributionItemDto
    {
        /// <summary>维度名称</summary>
        public string Name { get; set; }

        /// <summary>数量</summary>
        public int Count { get; set; }
    }

    /// <summary>
    /// 高频告警 TOP 排名项
    /// </summary>
    public class AlertTopItemDto
    {
        /// <summary>设备编号</summary>
        public string? DeviceCode { get; set; }

        /// <summary>设备名称</summary>
        public string? DeviceName { get; set; }

        /// <summary>告警次数（含合并累计 TriggerCount）</summary>
        public int Count { get; set; }

        /// <summary>最近告警时间</summary>
        public DateTime LastAlertTime { get; set; }
    }

    /// <summary>
    /// 告警处理及时率统计
    /// </summary>
    public class AlertTimelinessDto
    {
        /// <summary>统计范围内告警总数</summary>
        public int Total { get; set; }

        /// <summary>已确认数（含已处理/已关闭）</summary>
        public int AckCount { get; set; }

        /// <summary>已处理/已关闭数</summary>
        public int HandledCount { get; set; }

        /// <summary>未闭环数</summary>
        public int UnhandledCount { get; set; }

        /// <summary>平均确认时长（分钟，无确认记录为 null）</summary>
        public double? AvgAckMinutes { get; set; }

        /// <summary>平均处理时长（分钟，无处理记录为 null）</summary>
        public double? AvgHandleMinutes { get; set; }

        /// <summary>及时率（%）：30 分钟内确认的占比</summary>
        public double TimelyRate { get; set; }
    }

    /// <summary>
    /// 告警概览统计（列表页顶部卡片）
    /// </summary>
    public class AlertOverviewDto
    {
        /// <summary>未确认数量</summary>
        public int UnacknowledgedCount { get; set; }

        /// <summary>今日新增数量</summary>
        public int TodayCount { get; set; }

        /// <summary>今日紧急数量</summary>
        public int TodayUrgentCount { get; set; }

        /// <summary>近7日总数</summary>
        public int WeekCount { get; set; }
    }
}