using System.Reflection;
using Microsoft.AspNetCore.Mvc;
using Admin.NET.Plugin.AiDOP.Controllers.S8;
using Admin.NET.Plugin.AiDOP.Entity.S8;
using Admin.NET.Plugin.AiDOP.Infrastructure.S8;
using Admin.NET.Plugin.AiDOP.Service.S8;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules.DataAccess.Providers;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules.Definitions;
using Xunit;

namespace Admin.NET.Plugin.AiDOP.Tests.S8;

/// <summary>
/// S8-RULE-GOVERNANCE-BATCH2：租户运行策略供给契约。
///
/// <para>本文件要证明的三条不变量：</para>
/// <list type="number">
///   <item><b>身份 = (TenantId, RuleCode)</b>。Factory 不参与 —— 0 / 1 / N 个工厂都只产出一条策略；</item>
///   <item><b>租户隔离</b>。同一条规则定义在不同租户下是彼此独立的策略，改 A 不影响 B；</item>
///   <item><b>不覆盖租户已调整的参数与运行态</b>。供给只纠正定义投影。</item>
/// </list>
///
/// <para>测试打在纯决策函数 <c>S8RuleProvisioningService.Plan</c> 上，不接数据库 ——
/// 这三条不变量必须能被逐字段断言，而不是"跑一遍看起来对"。</para>
/// </summary>
public class S8RuleProvisioningIdempotencyTests
{
    private const long TenantA = 838257186181189L;
    private const long TenantB = 838257212780613L;
    private const string Rule01 = S8PurchaseDeliveryRuleDefinitions.PurchaseDeliveryDateDelayCode;

    private static readonly DateTime Now = new(2026, 9, 6, 14, 0, 0);

    private static List<S8RuleDefinition> Definitions() =>
        new S8RuleCatalog(new IS8RuleDefinitionSource[] { new S8PurchaseDeliveryRuleDefinitions() })
            .Definitions.ToList();

    private static S8RuleProvisioningPlan Plan(
        IReadOnlyCollection<long> tenants,
        IReadOnlyCollection<AdoS8WatchRule> existing,
        IReadOnlyCollection<S8RuleDefinition>? definitions = null) =>
        S8RuleProvisioningService.Plan(tenants, definitions ?? Definitions(), existing, Now);

    /// <summary>一条租户已经调整过、并且跑过一段时间的既有策略行。</summary>
    private static AdoS8WatchRule TunedRow(long tenantId, long id = 1000, string ruleCode = Rule01) => new()
    {
        Id = id,
        TenantId = tenantId,
        FactoryId = 838257186320453L,          // 历史值，供给不得改写
        RuleCode = ruleCode,

        // 定义投影：与代码定义一致
        DatasetCode = S8BusinessDatasetDefinitions.PurchaseDeliveryCode,
        RuleType = "TIMEOUT",
        SourceObjectType = S8PurchaseDeliveryRuleDefinitions.PurchaseOrderLineObjectType,
        WatchObjectType = S8PurchaseDeliveryRuleDefinitions.PurchaseOrderLineObjectType,
        SceneCode = "S4",
        StageCode = "S4",
        OrderFlowCode = "MATERIAL_PURCHASE",
        RuleMechanism = "DATE",

        // 租户调过的参数
        Enabled = true,
        Severity = S8SeverityCode.Follow,
        PollIntervalSeconds = 900,
        TriggerCountRequired = 3,
        RecoverCountRequired = 5,
        ParamsJson = """{"graceMinutes":60,"defaultOccurrenceDeptId":245}""",

        // 运行态
        NextRunAt = new DateTime(2026, 9, 6, 13, 50, 0),
        LastRunAt = new DateTime(2026, 9, 6, 13, 40, 0),
        LastStatus = "SUCCESS",
        LastError = "prev-error",
        LastDurationMs = 255,
        LastRunId = "0da4435a127c47dd",
        LockToken = "tok",
        LockedBy = "host-1",
        LockUntil = new DateTime(2026, 9, 6, 13, 45, 0),
        RunningStartedAt = new DateTime(2026, 9, 6, 13, 40, 0),
        ConsecutiveFailureCount = 2,
        PausedUntil = new DateTime(2026, 9, 6, 12, 0, 0),
        PauseReason = "MANUAL_PAUSED",
        CreatedAt = new DateTime(2026, 9, 5, 11, 24, 43)
    };

    // ───────────────────────── T1 / T2：建行与幂等 ─────────────────────────

    [Fact]
    public void T1_MissingTenantRule_CreatesExactlyOne()
    {
        var plan = Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>());

        var row = Assert.Single(plan.Inserts);
        Assert.Equal(TenantA, row.TenantId);
        Assert.Equal(Rule01, row.RuleCode);
        Assert.Empty(plan.Updates);
        Assert.Equal(0, plan.UnchangedCount);
    }

    [Fact]
    public void T2_SecondAndThirdRun_CreateNothing()
    {
        var created = Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>()).Inserts;
        created[0].Id = 1;   // 模拟落库后回填主键

        var second = Plan(new[] { TenantA }, created);
        Assert.Empty(second.Inserts);
        Assert.Empty(second.Updates);
        Assert.Equal(1, second.UnchangedCount);

        var third = Plan(new[] { TenantA }, created);
        Assert.Empty(third.Inserts);
        Assert.Empty(third.Updates);
    }

    // ───────────────────────── T3 / T4 / T5：绝不覆盖租户侧 ─────────────────────────

    [Fact]
    public void T3_ExistingRuntimeParameters_AreUntouched()
    {
        var row = TunedRow(TenantA);
        Plan(new[] { TenantA }, new[] { row });

        Assert.Equal(900, row.PollIntervalSeconds);
        Assert.Equal(3, row.TriggerCountRequired);
        Assert.Equal(5, row.RecoverCountRequired);
        Assert.Equal(S8SeverityCode.Follow, row.Severity);
        Assert.Equal("""{"graceMinutes":60,"defaultOccurrenceDeptId":245}""", row.ParamsJson);
    }

    [Fact]
    public void T4_ExistingEnabled_IsUntouched()
    {
        var enabled = TunedRow(TenantA);
        Plan(new[] { TenantA }, new[] { enabled });
        Assert.True(enabled.Enabled);

        var disabled = TunedRow(TenantA);
        disabled.Enabled = false;
        Plan(new[] { TenantA }, new[] { disabled });
        Assert.False(disabled.Enabled);
    }

    [Fact]
    public void T5_ExistingRuntimeState_IsUntouched()
    {
        var row = TunedRow(TenantA);
        Plan(new[] { TenantA }, new[] { row });

        Assert.Equal(new DateTime(2026, 9, 6, 13, 50, 0), row.NextRunAt);
        Assert.Equal(new DateTime(2026, 9, 6, 13, 40, 0), row.LastRunAt);
        Assert.Equal("SUCCESS", row.LastStatus);
        Assert.Equal("prev-error", row.LastError);
        Assert.Equal(255, row.LastDurationMs);
        Assert.Equal("0da4435a127c47dd", row.LastRunId);
        Assert.Equal("tok", row.LockToken);
        Assert.Equal("host-1", row.LockedBy);
        Assert.Equal(new DateTime(2026, 9, 6, 13, 45, 0), row.LockUntil);
        Assert.Equal(new DateTime(2026, 9, 6, 13, 40, 0), row.RunningStartedAt);
        Assert.Equal(2, row.ConsecutiveFailureCount);
        Assert.Equal(new DateTime(2026, 9, 6, 12, 0, 0), row.PausedUntil);
        Assert.Equal("MANUAL_PAUSED", row.PauseReason);
        Assert.Equal(838257186320453L, row.FactoryId);   // FactoryId 同样不得改写
    }

    // ───────────────────────── T6：投影漂移被纠正 ─────────────────────────

    [Fact]
    public void T6_WrongDefinitionProjection_IsRefreshed_WithoutTouchingTenantPolicy()
    {
        var row = TunedRow(TenantA);
        row.DatasetCode = "WRONG_DATASET";
        row.RuleType = "OUT_OF_RANGE";
        row.SceneCode = "S1";
        row.SourceObjectType = "EVIL_OBJECT";
        row.WatchObjectType = "EVIL_OBJECT";
        row.StageCode = null;
        row.OrderFlowCode = null;
        row.RuleMechanism = null;

        var plan = Plan(new[] { TenantA }, new[] { row });

        Assert.Same(row, Assert.Single(plan.Updates));
        Assert.Equal(S8BusinessDatasetDefinitions.PurchaseDeliveryCode, row.DatasetCode);
        Assert.Equal("TIMEOUT", row.RuleType);
        Assert.Equal("S4", row.SceneCode);
        Assert.Equal("S4", row.StageCode);
        Assert.Equal("MATERIAL_PURCHASE", row.OrderFlowCode);
        Assert.Equal("DATE", row.RuleMechanism);
        Assert.Equal(S8PurchaseDeliveryRuleDefinitions.PurchaseOrderLineObjectType, row.SourceObjectType);
        Assert.Equal(S8PurchaseDeliveryRuleDefinitions.PurchaseOrderLineObjectType, row.WatchObjectType);

        // 代码定义是权威，但它只管定义 —— 租户策略与运行态原封不动。
        Assert.True(row.Enabled);
        Assert.Equal(900, row.PollIntervalSeconds);
        Assert.Equal(S8SeverityCode.Follow, row.Severity);
        Assert.Equal("""{"graceMinutes":60,"defaultOccurrenceDeptId":245}""", row.ParamsJson);
        Assert.Equal("SUCCESS", row.LastStatus);
        Assert.Equal(838257186320453L, row.FactoryId);
    }

    // ───────────────────────── T7 / T8：ParamsJson 不重写 ─────────────────────────

    [Fact]
    public void T7_LegacyMixedParamsJson_IsNotRewritten()
    {
        const string legacy = """
        {"dueAtField":"due_at","statusField":"status","completedStates":["COMPLETED"],
         "objectIdField":"source_object_id","exceptionTypeCode":"PURCHASE_DELIVERY_ABNORMAL",
         "graceMinutes":30,"defaultOccurrenceDeptId":245}
        """;
        var row = TunedRow(TenantA);
        row.ParamsJson = legacy;
        row.DatasetCode = "WRONG";       // 同时触发一次投影刷新，证明刷新不会顺手动 params

        Plan(new[] { TenantA }, new[] { row });

        Assert.Equal(legacy, row.ParamsJson);
    }

    /// <summary>
    /// G1 造成的历史状态：params_json = NULL。
    /// 供给**不得**自动补写默认 JSON —— Batch 1 已证明 NULL + 代码定义可以正常运行，
    /// 悄悄补写反而是在未经请求的情况下改变租户策略。
    /// </summary>
    [Fact]
    public void T8_NullParamsJson_IsNotBackfilled()
    {
        var row = TunedRow(TenantA);
        row.ParamsJson = null;
        row.RuleType = "WRONG";          // 触发投影刷新

        var plan = Plan(new[] { TenantA }, new[] { row });

        Assert.Single(plan.Updates);
        Assert.Null(row.ParamsJson);
    }

    // ───────────────────────── T9 / T10：租户隔离（本批核心） ─────────────────────────

    [Fact]
    public void T9_TwoTenants_GetTwoIndependentRows()
    {
        var plan = Plan(new[] { TenantA, TenantB }, Array.Empty<AdoS8WatchRule>());

        Assert.Equal(2, plan.Inserts.Count);
        Assert.Equal(new[] { TenantA, TenantB }, plan.Inserts.Select(r => r.TenantId).ToArray());
        Assert.All(plan.Inserts, r => Assert.Equal(Rule01, r.RuleCode));

        // 两行必须是不同实例：共享引用会让一个租户改参数波及另一个。
        Assert.NotSame(plan.Inserts[0], plan.Inserts[1]);
    }

    [Fact]
    public void T10_TenantParametersDoNotLeakAcrossTenants()
    {
        var a = TunedRow(TenantA, id: 1);
        a.ParamsJson = """{"graceMinutes":60}""";
        var b = TunedRow(TenantB, id: 2);
        b.ParamsJson = """{"graceMinutes":0}""";
        b.Enabled = false;
        b.PollIntervalSeconds = 300;

        Plan(new[] { TenantA, TenantB }, new[] { a, b });

        Assert.Equal("""{"graceMinutes":60}""", a.ParamsJson);
        Assert.Equal("""{"graceMinutes":0}""", b.ParamsJson);
        Assert.True(a.Enabled);
        Assert.False(b.Enabled);
        Assert.Equal(900, a.PollIntervalSeconds);
        Assert.Equal(300, b.PollIntervalSeconds);
    }

    [Fact]
    public void T10_SyncingOneTenant_DoesNotTouchAnother()
    {
        var a = TunedRow(TenantA, id: 1);
        var b = TunedRow(TenantB, id: 2);
        b.DatasetCode = "WRONG_BUT_OUT_OF_SCOPE";

        // 只对 A 做对账；B 的行即使投影是错的也不该进入方案。
        var plan = Plan(new[] { TenantA }, new[] { a, b });

        Assert.Empty(plan.Inserts);
        Assert.Empty(plan.Updates);
        Assert.Equal("WRONG_BUT_OUT_OF_SCOPE", b.DatasetCode);
    }

    // ───────────────────────── T11 / T12：Factory 与身份无关 ─────────────────────────

    /// <summary>
    /// 防回归：多工厂租户绝不能产出多条策略。
    /// 这是最容易被后来者"顺手改回去"的地方 —— 一旦有人把 factory 加进身份，本用例立刻失败。
    /// </summary>
    [Theory]
    [InlineData(0)]     // 零工厂租户
    [InlineData(1)]     // 单工厂租户
    [InlineData(3)]     // 多工厂租户
    public void T11_T12_TenantAlwaysGetsExactlyOnePolicyPerRule_RegardlessOfFactoryCount(int factoryCount)
    {
        // 工厂数量对 Plan 而言根本不是输入 —— 这正是要断言的事实：
        // 供给的输入只有租户与定义，工厂无从参与。
        _ = factoryCount;

        var plan = Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>());

        var row = Assert.Single(plan.Inserts);
        Assert.Equal(S8RuleProvisioningService.CompatibilityFactoryId, row.FactoryId);
    }

    /// <summary>
    /// 历史上按工厂各建了一条 Rule 01（同 tenant + 同 rule_code，不同 factory_id）。
    /// 供给必须把它们视为**同一个身份**：只刷新 Id 最小的一行、不再新建、多余行上报但不删。
    /// </summary>
    [Fact]
    public void T11_PerFactoryLegacyRows_AreTreatedAsOneIdentity()
    {
        var f1 = TunedRow(TenantA, id: 10); f1.FactoryId = 111; f1.DatasetCode = "WRONG";
        var f2 = TunedRow(TenantA, id: 20); f2.FactoryId = 222; f2.DatasetCode = "WRONG";
        var f3 = TunedRow(TenantA, id: 30); f3.FactoryId = 333; f3.DatasetCode = "WRONG";

        var plan = Plan(new[] { TenantA }, new[] { f2, f3, f1 });

        Assert.Empty(plan.Inserts);                       // 不因"工厂缺行"而新建
        Assert.Same(f1, Assert.Single(plan.Updates));     // 只刷新 Id 最小的一行
        Assert.Equal(2, plan.DuplicateCount);             // 其余上报
        Assert.Equal("WRONG", f2.DatasetCode);            // 不动
        Assert.Equal("WRONG", f3.DatasetCode);
        Assert.Equal(111, f1.FactoryId);                  // 既有 FactoryId 保持
    }

    [Fact]
    public void T12_NewRowUsesCompatibilityFactoryId_NotAResolvedFactory()
    {
        var row = Assert.Single(Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>()).Inserts);

        // 0 = 无工厂作用域的兼容 metadata。绝不是"解析出来的唯一工厂"——
        // 那样零工厂 / 多工厂租户会直接供给失败。
        Assert.Equal(0L, row.FactoryId);
    }

    // ───────────────────────── T13 / T14：停用租户与孤儿 ─────────────────────────

    /// <summary>
    /// 停用租户不进入租户列表（<c>SysTenant.Status = 1</c> 过滤发生在 <c>SyncAsync</c>），
    /// 因此不会产生新行。本用例从 Plan 层确认：不在列表里 = 不产出。
    /// </summary>
    [Fact]
    public void T13_TenantNotInActiveList_GetsNoNewRow()
    {
        var plan = Plan(Array.Empty<long>(), Array.Empty<AdoS8WatchRule>());
        Assert.Empty(plan.Inserts);
        Assert.Empty(plan.Updates);
    }

    [Fact]
    public void T13_ExistingRowOfInactiveTenant_IsNotDeletedNorDisabled()
    {
        var inactive = TunedRow(TenantB, id: 77);
        // 只对 A 对账（B 停用故不在列表）。B 的行必须原封不动。
        Plan(new[] { TenantA }, new[] { inactive });

        Assert.True(inactive.Enabled);
        Assert.Equal(S8SeverityCode.Follow, inactive.Severity);
    }

    [Fact]
    public void T14_OrphanRule_IsReportedButNeverDeletedOrChanged()
    {
        var orphan = TunedRow(TenantA, id: 55, ruleCode: "RULE_THAT_NO_LONGER_EXISTS");
        orphan.DatasetCode = "SOME_OLD_DATASET";

        var plan = Plan(new[] { TenantA }, new[] { orphan });

        Assert.Equal(1, plan.OrphanedCount);
        Assert.DoesNotContain(orphan, plan.Updates);
        Assert.Equal("SOME_OLD_DATASET", orphan.DatasetCode);
        Assert.True(orphan.Enabled);

        // 孤儿不阻碍正常供给：Rule 01 仍会被建出来。
        Assert.Equal(Rule01, Assert.Single(plan.Inserts).RuleCode);
    }

    // ───────────────────────── T15：新增定义自动铺开 ─────────────────────────

    [Fact]
    public void T15_NewDefinition_IsProvisionedToEveryExistingTenant()
    {
        var definitions = Definitions();
        definitions.Add(FakeRule02());

        var existingA = TunedRow(TenantA, id: 1);
        var existingB = TunedRow(TenantB, id: 2);

        var plan = Plan(new[] { TenantA, TenantB }, new[] { existingA, existingB }, definitions);

        Assert.Equal(2, plan.Inserts.Count);
        Assert.All(plan.Inserts, r => Assert.Equal("RULE_S4_FAKE_FOR_TEST", r.RuleCode));
        Assert.Equal(new[] { TenantA, TenantB }, plan.Inserts.Select(r => r.TenantId).ToArray());

        // 既有 Rule 01 不受影响。
        Assert.Equal(2, plan.UnchangedCount);
    }

    // ───────────────────────── 新行契约 ─────────────────────────

    [Fact]
    public void NewRow_UsesDefinitionDefaults_AndNoFakedRunHistory()
    {
        var row = Assert.Single(Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>()).Inserts);

        // 定义投影
        Assert.Equal(S8BusinessDatasetDefinitions.PurchaseDeliveryCode, row.DatasetCode);
        Assert.Equal("TIMEOUT", row.RuleType);
        Assert.Equal("DATE", row.RuleMechanism);
        Assert.Equal("S4", row.SceneCode);
        Assert.Equal("S4", row.StageCode);
        Assert.Equal("MATERIAL_PURCHASE", row.OrderFlowCode);

        // 运行参数默认值来自定义策略
        Assert.False(row.Enabled);
        Assert.Equal(S8SeverityCode.Serious, row.Severity);
        Assert.Equal(300, row.PollIntervalSeconds);
        Assert.Equal(1, row.TriggerCountRequired);
        Assert.Equal(2, row.RecoverCountRequired);
        Assert.Equal("""{"graceMinutes":0}""", row.ParamsJson);

        // 运行态：一条尚未运行的规则该有的样子，不伪造历史
        Assert.Null(row.NextRunAt);
        Assert.Null(row.LastRunAt);
        Assert.Null(row.LastStatus);
        Assert.Null(row.LastError);
        Assert.Null(row.LastDurationMs);
        Assert.Null(row.LastRunId);
        Assert.Null(row.LockToken);
        Assert.Null(row.LockedBy);
        Assert.Null(row.LockUntil);
        Assert.Null(row.RunningStartedAt);
        Assert.Equal(0, row.ConsecutiveFailureCount);
        Assert.Null(row.PausedUntil);
        Assert.Null(row.PauseReason);
        Assert.Null(row.UpdatedAt);
        Assert.Equal(0, row.Id);
    }

    /// <summary>新行的 params_json 只能是 B 类运行参数，绝不能带任何判定语义。</summary>
    [Fact]
    public void NewRow_ParamsJson_CarriesNoJudgementSemantics()
    {
        var row = Assert.Single(Plan(new[] { TenantA }, Array.Empty<AdoS8WatchRule>()).Inserts);

        foreach (var forbidden in new[]
                 { "dueAtField", "statusField", "completedStates", "objectIdField", "objectCodeField", "exceptionTypeCode" })
            Assert.DoesNotContain(forbidden, row.ParamsJson!, StringComparison.Ordinal);
    }

    // ───────────────────────── T16 / T17 / T18：端点 · 注册 · 依赖方向 ─────────────────────────

    [Fact]
    public void T16_ProvisionEndpoint_IsPost_Scoped_AndReturnsObservableCounters()
    {
        var action = Assert.Single(typeof(AdoS8ConfigWatchRulesController)
            .GetMethods(BindingFlags.Public | BindingFlags.Instance | BindingFlags.DeclaredOnly)
            .Where(m => m.Name == "ProvisionAsync"));

        Assert.Equal("provision", Assert.Single(action.GetCustomAttributes<HttpPostAttribute>()).Template);
        Assert.NotEmpty(action.GetCustomAttributes()
            .Where(a => a.GetType().Name.Contains("S8Permission", StringComparison.Ordinal)));

        // 结果必须可观测：只回 200 会让运维不知道新规则有没有铺开。
        foreach (var counter in new[]
                 { "TenantCount", "DefinitionCount", "CreatedCount", "RefreshedCount", "UnchangedCount", "OrphanedCount" })
            Assert.NotNull(typeof(S8RuleProvisioningResult).GetProperty(counter));
    }

    [Fact]
    public void T17_Service_ExposesBothFullAndPerTenantSync()
    {
        var t = typeof(S8RuleProvisioningService);
        Assert.NotNull(t.GetMethod("SyncAsync"));
        Assert.NotNull(t.GetMethod("SyncTenantAsync"));
    }

    /// <summary>
    /// T18 + 依赖方向守卫：供给**不得**架在即将退役的业务建规则路径之上。
    /// Batch 3 会删掉 <c>CreateAsync</c>；如果这里依赖它，那一批会连带炸掉供给。
    /// </summary>
    [Fact]
    public void T18_ProvisioningDoesNotDependOnLegacyCreatePath()
    {
        var deps = Assert.Single(typeof(S8RuleProvisioningService).GetConstructors())
            .GetParameters().Select(p => p.ParameterType.Name).ToArray();

        Assert.DoesNotContain(deps, d => d.Contains("S8WatchRuleService", StringComparison.Ordinal));
        Assert.DoesNotContain(deps, d => d.Contains("S8ConfigDraftService", StringComparison.Ordinal));

        // 正向：依赖方向必须是 Catalog → Provisioning → DB。
        Assert.Contains(deps, d => d.Contains("IS8RuleCatalog", StringComparison.Ordinal));
    }

    /// <summary>
    /// Factory 守卫：身份判定不得含 FactoryId。用源码扫描而非行为断言 ——
    /// 谓词写没写在方法体里，反射看不到。
    /// </summary>
    [Fact]
    public void FactoryGuard_IdentityPredicateNeverIncludesFactory()
    {
        var code = SourceOf("Service/S8/S8RuleProvisioningService.cs");

        // 存在性查询只按 tenant_id 过滤
        Assert.Contains("Where(x => tenantIds.Contains(x.TenantId))", code);

        // 身份分组键只有 (TenantId, RuleCode)
        Assert.Contains("GroupBy(r => (r.TenantId, Code: r.RuleCode ?? string.Empty)", code);

        // 可执行代码里不得出现按工厂比较的身份谓词
        foreach (var forbidden in new[] { "x.FactoryId == ", "r.FactoryId == ", "FactoryId == scope.FactoryId" })
            Assert.DoesNotContain(forbidden, ExecutableLines(code));
    }

    private static S8RuleDefinition FakeRule02() => new()
    {
        RuleCode = "RULE_S4_FAKE_FOR_TEST",
        DisplayName = "测试用第二条规则",
        Description = "验证新增定义会自动铺开到每个既有租户",
        DatasetCode = S8BusinessDatasetDefinitions.PurchaseDeliveryCode,
        RuleType = "TIMEOUT",
        RuleMechanism = "DATE",
        SourceObjectType = "PURCHASE_ORDER_LINE",
        SceneCode = "S4",
        StageCode = "S4",
        ExceptionTypeCode = "PURCHASE_DELIVERY_ABNORMAL",
        Timeout = new S8TimeoutSemantics()
    };

    private static string SourceOf(string relative)
    {
        var dir = new DirectoryInfo(AppContext.BaseDirectory);
        while (dir != null && !Directory.Exists(Path.Combine(dir.FullName, "Admin.NET.Plugin.AiDOP")))
            dir = dir.Parent;
        Assert.NotNull(dir);

        var full = Path.Combine(dir!.FullName, "Admin.NET.Plugin.AiDOP", relative.Replace('/', Path.DirectorySeparatorChar));
        Assert.True(File.Exists(full), $"源码文件不存在，路径需同步更新：{full}");
        return File.ReadAllText(full);
    }

    /// <summary>只取可执行代码行：注释里为留档会复述旧写法，不应算违规。</summary>
    private static string ExecutableLines(string code) =>
        string.Join('\n', code.Split('\n')
            .Select(l => l.TrimStart())
            .Where(l => !l.StartsWith("///", StringComparison.Ordinal)
                        && !l.StartsWith("//", StringComparison.Ordinal)));
}