using System;

namespace ivf_tl_Operate.ViewModel
{
    /// <summary>
    /// 舱故障(H-08)展示映射：把 control 经 /status 透出的 HouseFaultRow 原始字段
    /// (英文枚举名 / 舱号 / UTC 时间 / 隔离布尔) 转成现场可读中文文案。
    ///
    /// 纯静态、不依赖 WPF / control 程序集，签名只收基础类型，便于独立 harness / 单测验证
    /// (ServiceMonitorViewModel.BuildFaultRows 调用它构造展示行，颜色 Brush 留在 ViewModel)。
    /// </summary>
    public static class ServiceMonitorFaultMapper
    {
        /// <summary>HouseFaultType 枚举名(control 端 ToString 透出的英文)→ 现场可读中文。未知码原样返回。</summary>
        public static string FaultTypeZh(string type)
        {
            switch (type)
            {
                case "CameraReadFailed": return "相机SN读取异常";
                case "CameraDuplicateSn": return "相机SN重复";
                case "HouseSnDuplicate": return "舱号重复";
                case "CcdSnMissing": return "相机SN缺失(相机半坏)";
                case "CcdSnDuplicate": return "舱相机SN重复";
                case "SerialReadException": return "串口读异常";
                case "InitException": return "舱初始化异常";
                case "RuntimeFault": return "运行期突发故障";
                default: return string.IsNullOrEmpty(type) ? "未知故障" : type;
            }
        }

        /// <summary>舱号文案：&gt;0=具体舱(可被剔除)；否则=相机/串口级、未定位到具体舱。</summary>
        public static string HouseText(int houseSn) =>
            houseSn > 0 ? $"{houseSn}号舱" : "未定位(相机/串口级)";

        /// <summary>发生时刻：control 端存 UtcNow，展示转本地时间；default=未知。</summary>
        public static string AtText(DateTime atUtc) =>
            atUtc == default(DateTime) ? "—" : atUtc.ToLocalTime().ToString("MM-dd HH:mm:ss");

        /// <summary>隔离态文案：已被剔除/已停=已隔离；否则仅提示(舱号未知的相机/串口级故障不剔除某舱)。</summary>
        public static string IsolatedText(bool isolated) => isolated ? "已隔离" : "仅提示";
    }
}