using Admin.NET.Plugin.AiDOP.Entity.S8;
using Admin.NET.Plugin.AiDOP.Infrastructure.S8;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules;
using Admin.NET.Plugin.AiDOP.Service.S8.Rules.Definitions;
using Xunit;

namespace Admin.NET.Test.S8;

/// <summary>
/// TIMEOUT evaluator 纯逻辑回归：运行参数解析 + dedup_key 生成稳定性。
/// 不接 DB / 不接 DI。
///
/// <para><b>S8-RULE-GOVERNANCE-BATCH1 的变化</b>：本文件原先覆盖的是
/// <c>S8TimeoutParams.Parse</c> —— 那个类同时解析判定语义（dueAtField / statusField /
/// completedStates / objectIdField / exceptionTypeCode）与运行参数（graceMinutes）。
/// 判定语义已迁入代码定义，对它的断言移至 <c>S8RuleDefinitionContractTests</c>；
/// 本文件改为覆盖剩下的那一半：<see cref="S8RuleRuntimeParameters"/>。</para>
///
/// <para>dedup_key 相关断言**逐字保留** —— 那部分语义本批未改。</para>
/// </summary>
public class S8TimeoutEvaluatorTests
{
    private static S8RuleDefinition Rule01Definition() =>
        new S8RuleCatalog(new IS8RuleDefinitionSource[] { new S8PurchaseDeliveryRuleDefinitions() })
            .GetRequired(S8PurchaseDeliveryRuleDefinitions.PurchaseDeliveryDateDelayCode);

    private static AdoS8WatchRule Rule(string? paramsJson, string severity = "SERIOUS") => new()
    {
        RuleCode = S8PurchaseDeliveryRuleDefinitions.PurchaseDeliveryDateDelayCode,
        Severity = severity,
        PollIntervalSeconds = 300,
        TriggerCountRequired = 1,
        RecoverCountRequired = 2,
        ParamsJson = paramsJson
    };

    // ───────────────── 运行参数解析（原 params 解析用例的继承者） ─────────────────

    [Fact]
    public void RuntimeParameters_Parse_FullRuntimeSpec()
    {
        var json = """
        {
          "graceMinutes": 5,
          "defaultOccurrenceDeptId": 245,
          "defaultResponsibleDeptId": 246
        }
        """;
        var p = S8RuleRuntimeParameters.Resolve(Rule(json), Rule01Definition());

        Assert.Equal(5, p.GraceMinutes);
        Assert.Equal(245L, p.DefaultOccurrenceDeptId);
        Assert.Equal(246L, p.DefaultResponsibleDeptId);
        Assert.Equal(300, p.PollIntervalSeconds);
        Assert.Equal(1, p.TriggerCountRequired);
        Assert.Equal(2, p.RecoverCountRequired);
        Assert.Equal(S8SeverityCode.Serious, p.Severity);
    }

    [Fact]
    public void RuntimeParameters_Tolerates_MissingOptionalFields()
    {
        var p = S8RuleRuntimeParameters.Resolve(Rule("""{ }"""), Rule01Definition());

        Assert.Equal(0, p.GraceMinutes);   // 定义声明的默认值
        Assert.Null(p.DefaultOccurrenceDeptId);
        Assert.Null(p.DefaultResponsibleDeptId);
    }

    /// <summary>
    /// 关键回归：旧 A 类字段读到也必须忽略。
    /// 这是「用户不能通过 params_json 改判定口径」在参数解析这一层的守卫；
    /// 判定结果层面的守卫在 <c>S8RuleDefinitionContractTests.T5_*</c>。
    /// </summary>
    [Fact]
    public void RuntimeParameters_Ignores_LegacyDefinitionFields()
    {
        var json = """
        {
          "dueAtField": "evil_field",
          "statusField": "evil_status",
          "completedStates": ["OPEN"],
          "objectIdField": "evil_id",
          "exceptionTypeCode": "EVIL",
          "graceMinutes": 7
        }
        """;
        var p = S8RuleRuntimeParameters.Resolve(Rule(json), Rule01Definition());

        // B 类照常生效
        Assert.Equal(7, p.GraceMinutes);

        // A 类不会以任何形式出现在回写的 params_json 里
        var written = p.ToParamsJson();
        Assert.DoesNotContain("evil", written, StringComparison.OrdinalIgnoreCase);
        Assert.DoesNotContain("completedStates", written, StringComparison.Ordinal);
    }

    [Fact]
    public void RuntimeParameters_DoesNotThrow_OnInvalidJson()
    {
        // 旧实现在这里抛 JsonException，由 evaluator 捕获后把整条规则标 params_parse_failed。
        // 现在语义在代码里，一份读不懂的运行参数不该让规则停摆 —— 回落默认值即可。
        var p = S8RuleRuntimeParameters.Resolve(Rule("not-a-json"), Rule01Definition());
        Assert.Equal(0, p.GraceMinutes);
    }

    /// <summary>
    /// severity 非法值必须回落**定义声明的默认值**，而不是被 <c>S8SeverityCode.Normalize</c>
    /// 静默降级成 FOLLOW —— 库里 severity='HIGH' 的那一行当年正是被那条兜底吞进来的。
    /// </summary>
    [Theory]
    [InlineData("HIGH")]
    [InlineData("LOW")]
    [InlineData("")]
    [InlineData(null)]
    public void RuntimeParameters_InvalidSeverity_FallsBackToDefinitionDefault(string? severity)
    {
        var p = S8RuleRuntimeParameters.Resolve(Rule("{}", severity!), Rule01Definition());
        Assert.Equal(S8SeverityCode.Serious, p.Severity);   // Rule 01 的定义默认值
    }

    [Theory]
    [InlineData(S8SeverityCode.Follow)]
    [InlineData(S8SeverityCode.Serious)]
    public void RuntimeParameters_ValidSeverity_IsHonoured(string severity)
    {
        var p = S8RuleRuntimeParameters.Resolve(Rule("{}", severity), Rule01Definition());
        Assert.Equal(severity, p.Severity);
    }

    [Fact]
    public void RuntimeParameters_OutOfRangeColumnValues_FallBackToDefaults()
    {
        var rule = Rule("{}");
        rule.PollIntervalSeconds = 5;        // < 60，越界
        rule.TriggerCountRequired = 99;      // > 10，越界
        var p = S8RuleRuntimeParameters.Resolve(rule, Rule01Definition());

        Assert.Equal(300, p.PollIntervalSeconds);
        Assert.Equal(1, p.TriggerCountRequired);
    }

    // ───────────────── dedup_key（本批未改，断言逐字保留） ─────────────────

    [Fact]
    public void BuildDedupKey_IsStable_SameInputsSameOutput()
    {
        var k1 = S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "G01_TEST_TIMEOUT", "ORDER", "ORDER-TIMEOUT-01");
        var k2 = S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "G01_TEST_TIMEOUT", "ORDER", "ORDER-TIMEOUT-01");
        Assert.Equal(k1, k2);
        Assert.Equal("T1:F1:RG01_TEST_TIMEOUT:ORDER:ORDER-TIMEOUT-01", k1);
    }

    [Fact]
    public void BuildDedupKey_Differentiates_OnTenantFactoryRuleObject()
    {
        var baseKey = S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "R", "ORDER", "ID");
        Assert.NotEqual(baseKey, S8TimeoutRuleEvaluator.BuildDedupKey(2, 1, "R", "ORDER", "ID"));
        Assert.NotEqual(baseKey, S8TimeoutRuleEvaluator.BuildDedupKey(1, 2, "R", "ORDER", "ID"));
        Assert.NotEqual(baseKey, S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "R2", "ORDER", "ID"));
        Assert.NotEqual(baseKey, S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "R", "TASK", "ID"));
        Assert.NotEqual(baseKey, S8TimeoutRuleEvaluator.BuildDedupKey(1, 1, "R", "ORDER", "ID2"));
    }

    [Fact]
    public void BuildDedupKey_Length_FitsVarchar128()
    {
        // 实体定义 dedup_key VARCHAR(128)。本断言锁定常规标识符不溢出列长度。
        var k = S8TimeoutRuleEvaluator.BuildDedupKey(9999999, 9999999, "VERY_LONG_RULE_CODE_FOR_PADDING_64____", "EXTREMELY_LONG_OBJECT_TYPE______", "EXTREMELY_LONG_OBJECT_ID________");
        Assert.True(k.Length <= 128, $"dedup_key length {k.Length} exceeds 128: {k}");
    }
}