namespace Admin.NET.Plugin.AiDOP.DataPlatform;

/// <summary>
/// 岗位原文 → 中立岗位码。精确值优先于关键字。未命中为 UNKNOWN，不计入在职分母。
/// </summary>
public static class EmployeePositionRules
{
    public const string Warehouse = "WAREHOUSE";
    public const string Production = "PRODUCTION";
    public const string Planner = "PLANNER";
    public const string Other = "OTHER";
    public const string Unknown = "UNKNOWN";

    public static readonly string[] WarehouseKeywords = ["仓", "库管", "保管", "物料员", "WMS"];
    public static readonly string[] ProductionKeywords = ["生产", "操作", "装配", "车间", "班组", "产线", "工段"];
    public static readonly string[] PlannerKeywords = ["计划", "PMC", "调度"];

    /// <summary>T8 gw 原值精确匹配，优先于关键字。</summary>
    public static readonly IReadOnlyDictionary<string, string> Exact = new Dictionary<string, string>(StringComparer.Ordinal)
    {
        ["计划"] = Planner,
        ["仓管"] = Warehouse,
        ["生产"] = Production
    };

    public static string Classify(string? raw)
    {
        if (string.IsNullOrWhiteSpace(raw))
            return Unknown;
        var text = raw.Trim();
        if (Exact.TryGetValue(text, out var exact))
            return exact;
        if (WarehouseKeywords.Any(text.Contains))
            return Warehouse;
        if (ProductionKeywords.Any(text.Contains))
            return Production;
        if (PlannerKeywords.Any(text.Contains))
            return Planner;
        return Unknown;
    }
}