namespace Admin.NET.Plugin.AiDOP.Service.S8.OrderFlow;

/// <summary>
/// ORDER-FLOW-S8-INTEGRATED-DOMAIN-RESET-1 t3b：ORDER_FLOW 5 项常量 + 派生映射。
/// 5 阶段顺序由 SortNo 隐含（同 ORDER_FLOW_ALL 数组顺序）；S_STAGE 与 OrderFlowName 字典为只读引用。
/// 不在此文件硬编码任何业务真值（KPI 天数 / 行数 / 真值矩阵）。
/// </summary>
public static class OrderFlowConstants
{
    public const string ORDER_REVIEW_PLAN_CALC = "ORDER_REVIEW_PLAN_CALC";
    public const string PRODUCT_DESIGN = "PRODUCT_DESIGN";
    public const string MATERIAL_PURCHASE = "MATERIAL_PURCHASE";
    public const string BODY_PRODUCTION = "BODY_PRODUCTION";
    public const string FINAL_ASSEMBLY_DELIVERY = "FINAL_ASSEMBLY_DELIVERY";

    /// <summary>5 阶段固定顺序（与 ado_s8_order_flow_stage.sort_no 1~5 对齐）。</summary>
    public static readonly IReadOnlyList<string> All = new[]
    {
        ORDER_REVIEW_PLAN_CALC,
        PRODUCT_DESIGN,
        MATERIAL_PURCHASE,
        BODY_PRODUCTION,
        FINAL_ASSEMBLY_DELIVERY,
    };

    /// <summary>ORDER_FLOW → S 阶段编码（演示协议固定）。</summary>
    public static readonly IReadOnlyDictionary<string, string> SStageMap = new Dictionary<string, string>
    {
        [ORDER_REVIEW_PLAN_CALC] = "S1",
        [PRODUCT_DESIGN] = "S2",
        [MATERIAL_PURCHASE] = "S3",
        [BODY_PRODUCTION] = "S6",
        [FINAL_ASSEMBLY_DELIVERY] = "S7",
    };

    /// <summary>ORDER_FLOW → 展示中文名（与 t2a stage seed FlowDef 一致）。</summary>
    public static readonly IReadOnlyDictionary<string, string> OrderFlowName = new Dictionary<string, string>
    {
        [ORDER_REVIEW_PLAN_CALC] = "评审/排产/测算",
        [PRODUCT_DESIGN] = "产品设计",
        [MATERIAL_PURCHASE] = "材料采购",
        [BODY_PRODUCTION] = "本体生产",
        [FINAL_ASSEMBLY_DELIVERY] = "总装发货",
    };

    /// <summary>未识别 code 时的 fallback 名称（直接回显 code）。</summary>
    public static string ResolveName(string? orderFlowCode)
        => !string.IsNullOrEmpty(orderFlowCode) && OrderFlowName.TryGetValue(orderFlowCode, out var n)
            ? n
            : (orderFlowCode ?? string.Empty);

    /// <summary>未识别 code 时回退为空字符串（service 调用方决定是否升级为异常）。</summary>
    public static string ResolveSStage(string? orderFlowCode)
        => !string.IsNullOrEmpty(orderFlowCode) && SStageMap.TryGetValue(orderFlowCode, out var s)
            ? s
            : string.Empty;
}