using Admin.NET.Plugin.AiDOP.Entity.S8.OrderFlow;

namespace Admin.NET.Plugin.AiDOP.SeedData;

/// <summary>
/// S8-ORDER-CHAIN-PRODUCT-DESIGN-20ORDER-GENERATION-CONSISTENCY-AUDIT-1：
/// S8 订单链路产品设计图号种子，按订单父级 actual_days 守恒生成（不再使用全局聚合口径）。
///
/// 守恒约束（核心业务规则）：
///   AVG(drawing.actual_days WHERE order_code = X)
///   = ado_s8_order_flow_stage.actual_days WHERE order_code = X AND order_flow_code = 'PRODUCT_DESIGN'
/// 即 SUM(all drawing.actual_days) = stage.actual_days × drawing_count（简单平均，非台数加权）。
///
/// 守恒模型（按 stage.actual_days × 是否有非标 5 类分类）：
///   A) pending（stage.status=pending）            → 3 张 STANDARD，actual_days=NULL，status=pending
///   B) green 无非标（stage.actual_days=A=3）      → 3 张 STANDARD，actual_days=A=3.00，status=green
///   C) green 有非标（A=3）                        → 6 张 STANDARD (1.25 green) + 1 张 NON_STANDARD (13.50 red)
///                                                    AVG=(6×1.25 + 13.50)/7 = 21/7 = 3.00；非标显著超期，常规摊平
///   D) red 无非标（A=5）                          → 5 张 STANDARD，actual_days=A=5.00，status=red
///   E) red 有非标（A=5）                          → 6 张 STANDARD (4.50 red) + 1 张 NON_STANDARD (8.00 red)
///                                                    AVG=(6×4.50 + 8.00)/7 = 35/7 = 5.00；全部 red 支撑父 red
///
/// 图号编码：常规 D-{OrderCode}-G{NN}；非标 D-{OrderCode}-X{NN}。
/// 责任人按全局序号 seq 在 6 桶（李海峰 / 陈思远 / 王明华 / 赵建国 / 刘振宇 / 周启明）循环。
/// 总图号数：106 = A(2×3) + B(5×3) + C(9×7) + D(3×5) + E(1×7) = 6 + 15 + 63 + 15 + 7。
/// </summary>
[IncreSeed]
public class S8OrderFlowProductDesignDrawingSeedData
    : ISqlSugarEntitySeedData<AdoS8OrderFlowProductDesignDrawing>
{
    public IEnumerable<AdoS8OrderFlowProductDesignDrawing> HasData()
        => S8OrderFlowProductDesignDrawingDataset.BuildDrawings();
}

internal static class S8OrderFlowProductDesignDrawingDataset
{
    /// <summary>图号 id 基址（与其他 S8 种子号段隔离；本表新设计行数 106，使用 IdBase+1..106）。</summary>
    internal const long IdBase = 1329909130000L;

    internal const string ProductTypeStandard = "STANDARD";
    internal const string ProductTypeNonStandard = "NON_STANDARD";

    /// <summary>PRODUCT_DESIGN 阶段统一 KPI=3 天，常规与非标共用同一阈值。</summary>
    internal const decimal KpiDays = 3.00m;

    /// <summary>常规图号统一 product_quantity=7（设计阶段每张图号承载 7 台）。</summary>
    internal const int StandardQuantity = 7;

    /// <summary>非标图号统一 product_quantity=2（非标少量定制）。</summary>
    internal const int NonStandardQuantity = 2;

    /// <summary>责任人 6 桶；按全局递增序号 seq 循环分配，sort_no 仅订单内序号。</summary>
    private static readonly string[] Designers =
    {
        "李海峰",
        "陈思远",
        "王明华",
        "赵建国",
        "刘振宇",
        "周启明",
    };

    /// <summary>
    /// 每订单是否含非标产品（与 stage 派生 layout 共同决定 std/nstd 数量）。
    /// 11 单含非标（沿用原业务直觉：大客户 / P1 优先级 / completed 订单），9 单无非标。
    /// pending 父级订单（016, 017）按守恒约束统一不分配非标（产品设计阶段尚未进入或刚开始）。
    /// </summary>
    private static readonly bool[] HasNonStandardByIdx =
    {
        // SO-2026-001..005
        true,  true,  true,  false, false,
        // SO-2026-006..010
        true,  true,  true,  false, false,
        // SO-2026-011..015
        false, true,  false, false, false,
        // SO-2026-016..020
        false, false, true,  true,  true,
    };

    /// <summary>单订单图号布局：std/nstd 数量 + 各自 actual_days + 各自 status。null actual=pending。</summary>
    internal readonly record struct OrderLayout(
        int StdN,
        int NstdN,
        decimal? StdActualDays,
        decimal? NstdActualDays,
        string StdStatus,
        string NstdStatus);

    /// <summary>
    /// 按 PRODUCT_DESIGN stage 派生订单布局。守恒前提：SUM(actual_days) = stage.actual_days × drawing_count。
    /// stage seed 引用：S8OrderFlowStageDataset.BuildLifecycleValues(spec)[1] 即 PRODUCT_DESIGN 阶段。
    /// </summary>
    internal static OrderLayout DeriveLayout(S8OrderFlowDataset.OrderSpec spec, int idx)
    {
        var lifecycle = S8OrderFlowStageDataset.BuildLifecycleValues(spec);
        var stage = lifecycle[1]; // 索引 1 = PRODUCT_DESIGN（lifecycle[0]=ORDER_REVIEW_PLAN_CALC）

        // 类别 A：pending 父级 → 3 std NULL pending
        if (stage.status == "pending")
        {
            return new OrderLayout(3, 0, null, null, "pending", "pending");
        }

        var A = stage.actualDays;
        var hasNonStandard = HasNonStandardByIdx[idx];

        if (A <= KpiDays)
        {
            // 类别 C：green 有非标 → 6 std 1.25 + 1 nstd 13.50；AVG=(6×1.25 + 13.50)/7=3.00
            if (hasNonStandard)
            {
                return new OrderLayout(6, 1, 1.25m, 13.50m, "green", "red");
            }
            // 类别 B：green 无非标 → 3 std 各 A green；AVG=A
            return new OrderLayout(3, 0, A, null, "green", "green");
        }
        else
        {
            // 类别 E：red 有非标 → 6 std 4.50 + 1 nstd 8.00；AVG=(6×4.50 + 8.00)/7=5.00；全 red
            if (hasNonStandard)
            {
                return new OrderLayout(6, 1, 4.50m, 8.00m, "red", "red");
            }
            // 类别 D：red 无非标 → 5 std 各 A red；AVG=A；多张图号都超期支撑父 red
            return new OrderLayout(5, 0, A, null, "red", "red");
        }
    }

    public static IEnumerable<AdoS8OrderFlowProductDesignDrawing> BuildDrawings()
    {
        long seq = 0;
        // 图号粒度计划开始 = release_at + 5 天（ORDER_REVIEW KPI=5 天结束后进入 PRODUCT_DESIGN）
        var plannedStart = S8OrderFlowDataset.ReleaseBase.AddDays(5);
        var plannedEnd = plannedStart.AddDays((double)KpiDays);

        for (var i = 0; i < S8OrderFlowDataset.Specs.Length; i++)
        {
            var orderSpec = S8OrderFlowDataset.Specs[i];
            var layout = DeriveLayout(orderSpec, i);

            var sortNo = 0;

            for (var g = 0; g < layout.StdN; g++)
            {
                sortNo++;
                yield return BuildDrawing(
                    seq: ++seq,
                    orderSpec: orderSpec,
                    sortNo: sortNo,
                    drawingNo: $"D-{orderSpec.OrderCode}-G{g + 1:D2}",
                    productType: ProductTypeStandard,
                    productQuantity: StandardQuantity,
                    plannedStart: plannedStart,
                    plannedEnd: plannedEnd,
                    actualDays: layout.StdActualDays,
                    status: layout.StdStatus);
            }

            for (var x = 0; x < layout.NstdN; x++)
            {
                sortNo++;
                yield return BuildDrawing(
                    seq: ++seq,
                    orderSpec: orderSpec,
                    sortNo: sortNo,
                    drawingNo: $"D-{orderSpec.OrderCode}-X{x + 1:D2}",
                    productType: ProductTypeNonStandard,
                    productQuantity: NonStandardQuantity,
                    plannedStart: plannedStart,
                    plannedEnd: plannedEnd,
                    actualDays: layout.NstdActualDays,
                    status: layout.NstdStatus);
            }
        }
    }

    private static AdoS8OrderFlowProductDesignDrawing BuildDrawing(
        long seq,
        S8OrderFlowDataset.OrderSpec orderSpec,
        int sortNo,
        string drawingNo,
        string productType,
        int productQuantity,
        DateTime plannedStart,
        DateTime plannedEnd,
        decimal? actualDays,
        string status)
    {
        // 完成态：actualStart=plannedStart，actualEnd=plannedStart + actualDays
        // pending：actualStart=plannedStart 表示已起步但未完工，actualEnd=NULL（与 stage seed pending 路径一致）
        DateTime? actualStart = plannedStart;
        DateTime? actualEnd = actualDays.HasValue
            ? plannedStart.AddDays((double)actualDays.Value)
            : (DateTime?)null;

        // is_achieved：actual_days <= kpi_days；pending 时为 false（entity bool 不可 null）
        var isAchieved = actualDays.HasValue && actualDays.Value <= KpiDays;

        var responsible = Designers[(seq - 1) % Designers.Length];

        return new AdoS8OrderFlowProductDesignDrawing
        {
            Id = IdBase + seq,
            TenantId = 1,
            FactoryId = 1,
            OrderCode = orderSpec.OrderCode,
            DrawingNo = drawingNo,
            ProductType = productType,
            ProductQuantity = productQuantity,
            ResponsiblePerson = responsible,
            PlannedStartDate = plannedStart,
            PlannedEndDate = plannedEnd,
            ActualStartDate = actualStart,
            ActualEndDate = actualEnd,
            KpiDays = KpiDays,
            ActualDays = actualDays,
            IsAchieved = isAchieved,
            Status = status,
            SortNo = sortNo,
            IsDeleted = false,
            CreateTime = S8OrderFlowDataset.CreatedAt,
            UpdateTime = null,
        };
    }
}