using Admin.NET.Plugin.AiDOP.Dto.S8;
using Admin.NET.Plugin.AiDOP.Entity.S8;
using Admin.NET.Plugin.AiDOP.Infrastructure;
using Admin.NET.Plugin.AiDOP.Job;
using Admin.NET.Plugin.AiDOP.Service.S8;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules;
using System.Reflection;
using Xunit;

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

public class S8TenantIsolationContractTests
{
    private const BindingFlags Instance = BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic;

    [Fact]
    public void AutoExceptionCreation_RequiresExplicitTenantAndFactory()
    {
        Assert.NotNull(typeof(S8ManualReportService).GetMethod(
            nameof(S8ManualReportService.CreateFromWatchAsync),
            [typeof(long), typeof(long), typeof(S8WatchHitResult)]));
        Assert.NotNull(typeof(S8ManualReportService).GetMethod(
            nameof(S8ManualReportService.CreateFromHitAsync),
            [typeof(long), typeof(long), typeof(S8RuleHit)]));
    }

    [Fact]
    public void SchedulerServices_DiscoverValidTenantScopes()
    {
        Assert.NotNull(typeof(S8WatchSchedulerService).GetMethod(
            nameof(S8WatchSchedulerService.ListEnabledScopesAsync)));
        Assert.NotNull(typeof(S8ActiveFlowWatchService).GetMethod(
            nameof(S8ActiveFlowWatchService.ListActiveScopesAsync)));
    }

    [Fact]
    public void ManualReport_ResolvesTenantAndFactoryFromServerContext()
    {
        Assert.NotNull(typeof(S8ManualReportService).GetMethod(
            "ResolveTrustedScopeAsync", BindingFlags.Instance | BindingFlags.NonPublic));
    }

    [Fact]
    public void BackgroundJobs_DoNotKeepLegacyDefaultTenantConstants()
    {
        const BindingFlags flags = BindingFlags.Static | BindingFlags.NonPublic | BindingFlags.Public;
        Assert.Null(typeof(S8WatchSchedulerJob).GetField("DefaultTenantId", flags));
        Assert.Null(typeof(S8ActiveFlowStuckScanJob).GetField("DefaultTenantId", flags));
    }

    // ───────────────────────── S8-TENANT-FACTORY-P0-CLOSURE-1 ─────────────────────────

    /// <summary>可信作用域解析器必须存在，且只暴露无参解析入口（不接受调用方传入 tenant / factory）。</summary>
    [Fact]
    public void TrustedScopeResolver_ExposesParameterlessServerSideResolve()
    {
        var resolve = typeof(S8TrustedScopeResolver).GetMethod(nameof(S8TrustedScopeResolver.ResolveAsync));
        Assert.NotNull(resolve);
        Assert.Empty(resolve!.GetParameters());

        // 工厂口径锁定为「租户内工厂类型组织」，不是 SysTenant.OrgId。
        Assert.Equal("501", S8TrustedScopeResolver.FactoryOrgType);

        var scope = new S8TrustedScope(11L, 22L);
        Assert.Equal(11L, scope.TenantId);
        Assert.Equal(22L, scope.FactoryId);
    }

    /// <summary>
    /// 所有 tenant+factory-owned 配置对象的写入口必须强制要求 <see cref="S8TrustedScope"/>；
    /// 缺参数即编译期失败，杜绝「按裸 Id 改 / 删 / 重归属」回归。
    /// </summary>
    [Theory]
    [InlineData(typeof(S8SceneConfigService), typeof(AdoS8SceneConfig))]
    [InlineData(typeof(S8DataSourceService), typeof(AdoS8DataSource))]
    [InlineData(typeof(S8AlertRuleService), typeof(AdoS8AlertRule))]
    [InlineData(typeof(S8NotificationLayerService), typeof(AdoS8NotificationLayer))]
    [InlineData(typeof(S8RoleConfigService), typeof(AdoS8RolePermissionConfig))]
    [InlineData(typeof(S8DashboardCellConfigService), typeof(AdoS8DashboardCellConfig))]
    [InlineData(typeof(S8ExceptionTypeService), typeof(AdoS8ExceptionType))]
    [InlineData(typeof(S8WatchRuleService), typeof(AdoS8WatchRule))]
    public void ConfigWrites_RequireTrustedScope(Type serviceType, Type entityType)
    {
        Assert.NotNull(serviceType.GetMethod("CreateAsync", [entityType, typeof(S8TrustedScope)]));
        Assert.NotNull(serviceType.GetMethod("UpdateAsync", [typeof(long), entityType, typeof(S8TrustedScope)]));
        Assert.NotNull(serviceType.GetMethod("DeleteAsync", [typeof(long), typeof(S8TrustedScope)]));

        // 旧的无作用域重载必须彻底消失，否则调用方可能悄悄退回不安全路径。
        Assert.Null(serviceType.GetMethod("CreateAsync", [entityType]));
        Assert.Null(serviceType.GetMethod("UpdateAsync", [typeof(long), entityType]));
        Assert.Null(serviceType.GetMethod("DeleteAsync", [typeof(long)]));
    }

    /// <summary>监视规则的每个按 Id 的运行态动作都必须带可信作用域。</summary>
    [Theory]
    [InlineData("RunNowAsync")]
    [InlineData("PauseAsync")]
    [InlineData("ResumeAsync")]
    [InlineData("TestAsync")]
    public void WatchRuleRuntimeActions_RequireTrustedScope(string method)
    {
        Assert.NotNull(typeof(S8WatchRuleService).GetMethod(method, [typeof(long), typeof(S8TrustedScope)]));
        Assert.Null(typeof(S8WatchRuleService).GetMethod(method, [typeof(long)]));
    }

    /// <summary>草稿全部按 Id 的入口都必须带可信作用域。</summary>
    [Fact]
    public void ConfigDraft_ByIdEntryPoints_RequireTrustedScope()
    {
        var t = typeof(S8ConfigDraftService);
        Assert.NotNull(t.GetMethod("GetAsync", [typeof(long), typeof(S8TrustedScope)]));
        Assert.NotNull(t.GetMethod("DeleteAsync", [typeof(long), typeof(S8TrustedScope)]));
        Assert.NotNull(t.GetMethod("CreateAsync", [typeof(AdoS8ConfigDraftCreateDto), typeof(S8TrustedScope)]));
        Assert.NotNull(t.GetMethod("UpdateAsync", [typeof(long), typeof(AdoS8ConfigDraftUpdateDto), typeof(S8TrustedScope)]));
        Assert.NotNull(t.GetMethod("GenerateRuleAsync", [typeof(long), typeof(AdoS8ConfigDraftGenerateRuleDto), typeof(S8TrustedScope)]));
        Assert.Null(t.GetMethod("GetAsync", [typeof(long)]));
        Assert.Null(t.GetMethod("DeleteAsync", [typeof(long)]));
    }

    /// <summary>
    /// 异常时间线 / 决策 / 证据三张子表无自有 tenant_id / factory_id 列，
    /// 归属必须由父异常派生；因此必须提供作用域校验入口。
    /// </summary>
    [Fact]
    public void ExceptionSubResources_ExposeParentScopeGuard()
    {
        var guard = typeof(S8DecisionService).GetMethod(
            nameof(S8DecisionService.IsExceptionInScopeAsync),
            [typeof(long), typeof(long), typeof(long)]);
        Assert.NotNull(guard);
        Assert.Equal(typeof(Task<bool>), guard!.ReturnType);
    }

    /// <summary>异常流转的补充说明同样按可信作用域绑行，不得只按裸 Id 写他租户时间线。</summary>
    [Fact]
    public void ExceptionComment_RequiresTenantAndFactory()
    {
        Assert.NotNull(typeof(S8TaskFlowService).GetMethod(
            nameof(S8TaskFlowService.CommentAsync),
            [typeof(long), typeof(long), typeof(long), typeof(string)]));
        Assert.Null(typeof(S8TaskFlowService).GetMethod(
            nameof(S8TaskFlowService.CommentAsync), [typeof(long), typeof(string)]));
    }

    /// <summary>
    /// 越权 Id 与不存在 Id 必须给出同一响应（404），不泄露「他租户存在该资源」；
    /// 同时继承 S8BizException，保证既有只捕获 S8BizException 的调用方安全降级为 400 而不是 500。
    /// </summary>
    [Fact]
    public void NotFound_IsIndistinguishableAndBackwardCompatible()
    {
        Assert.True(typeof(S8BizException).IsAssignableFrom(typeof(S8NotFoundException)));
        var ex = new S8NotFoundException();
        Assert.IsAssignableFrom<S8BizException>(ex);
    }

    /// <summary>OrderFlow / ManualReport 两条既有正确范式不得回退为信任客户端作用域。</summary>
    [Fact]
    public void ReferenceTrustedPaths_DoNotRegress()
    {
        // OrderFlow：服务端自解析租户与工厂，且不暴露任何接受 tenant/factory 的公共查询入口。
        var orderFlow = typeof(Admin.NET.Plugin.AiDOP.Service.S8.OrderFlow.S8OrderFlowService);
        Assert.NotNull(orderFlow.GetMethod("ResolveTenantId", Instance));
        Assert.NotNull(orderFlow.GetMethod("ResolveFactoryIdAsync", Instance));
        Assert.NotNull(orderFlow.GetMethod("ResolveScopeAsync", Instance));

        // ManualReport：建单与表单选项都必须经服务端可信作用域。
        Assert.NotNull(typeof(S8ManualReportService).GetMethod(
            "ResolveTrustedScopeAsync", BindingFlags.Instance | BindingFlags.NonPublic));
    }

    /// <summary>
    /// 数据源响应不得出现明文密码：Pwd= / Password= 一律脱敏，其它连接字段保留以便同租户配置管理员识别。
    /// </summary>
    [Theory]
    [InlineData("Server=h;Database=d;Uid=u;Pwd=S3cr3tValue;SslMode=None;")]
    [InlineData("Server=h;Database=d;User Id=u;Password=S3cr3tValue;Encrypt=false;")]
    [InlineData("server=h;pwd=S3cr3tValue")]
    public void DataSourceEndpoint_NeverExposesPlaintextSecret(string endpoint)
    {
        var mask = typeof(S8DataSourceService).GetMethod(
            "MaskSecret", BindingFlags.Static | BindingFlags.NonPublic);
        Assert.NotNull(mask);

        var masked = (string)mask!.Invoke(null, [endpoint]);
        Assert.DoesNotContain("S3cr3tValue", masked);
        Assert.Contains("******", masked);
        // 非敏感字段保留（供同租户管理员识别是哪一条连接）。
        Assert.Contains("Server=h", masked, StringComparison.OrdinalIgnoreCase);
    }

    /// <summary>
    /// 前端回填脱敏占位符时不得把 "******" 当作真实密码写库；未提交新密码则保留原密码。
    /// </summary>
    [Fact]
    public void DataSourceEndpoint_MaskedPlaceholderDoesNotOverwriteStoredSecret()
    {
        var merge = typeof(S8DataSourceService).GetMethod(
            "MergeEndpointPreservingSecret", BindingFlags.Static | BindingFlags.NonPublic);
        Assert.NotNull(merge);

        const string stored = "Server=h;Uid=u;Pwd=RealSecret;";

        // 1) 回填脱敏值 → 保留原始密码
        var merged = (string)merge!.Invoke(null, ["Server=h;Uid=u;Pwd=******;", stored]);
        Assert.Contains("Pwd=RealSecret", merged);

        // 2) endpoint 为空 → 完全保留原值（不清空密码）
        var kept = (string)merge.Invoke(null, [null, stored]);
        Assert.Equal(stored, kept);

        // 3) 明确提交新密码 → 才真正替换
        var replaced = (string)merge.Invoke(null, ["Server=h;Uid=u;Pwd=BrandNew;", stored]);
        Assert.Contains("Pwd=BrandNew", replaced);
        Assert.DoesNotContain("RealSecret", replaced);
    }

    /// <summary>
    /// 兼容性：查询 DTO 仍保留 TenantId / FactoryId 字段（老前端继续发送不报错），
    /// 但它们已不承担安全边界——由 Controller 在调用 Service 前用可信作用域覆盖。
    /// </summary>
    [Fact]
    public void QueryDtos_KeepScopeFieldsForCompatibilityOnly()
    {
        foreach (var t in new[]
                 {
                     typeof(AdoS8ExceptionQueryDto),
                     typeof(AdoS8MonitoringSummaryQueryDto),
                     typeof(AdoS8DetectionLogQueryDto),
                     typeof(AdoS8NotificationLogQueryDto),
                     typeof(AdoS8IssueLedgerQueryDto),
                     typeof(AdoS8CellDataQueryDto),
                 })
        {
            var tenant = t.GetProperty("TenantId");
            var factory = t.GetProperty("FactoryId");
            Assert.NotNull(tenant);
            Assert.NotNull(factory);
            // 必须可写，Controller 才能用可信作用域覆盖客户端传入值。
            Assert.True(tenant!.CanWrite, $"{t.Name}.TenantId 必须可写，否则 Controller 无法覆盖客户端作用域");
            Assert.True(factory!.CanWrite, $"{t.Name}.FactoryId 必须可写，否则 Controller 无法覆盖客户端作用域");
        }
    }
}