using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using OrpaonVision.Core.Results;
using OrpaonVision.SiteApp.Runtime.Contracts;
using OrpaonVision.SiteApp.Runtime.Options;
using System.Text.Json;

namespace OrpaonVision.SiteApp.Runtime.Services;

/// <summary>
/// 高级规则引擎服务实现。
/// 支持复杂规则配置、多条件判断、动态规则加载等功能。
/// </summary>
public sealed class AdvancedRuleEngineService : IRuleEngineService, IDisposable
{
    private readonly ILogger<AdvancedRuleEngineService> _logger;
    private readonly RuntimeOptions _options;
    private readonly Dictionary<string, RuleDefinition> _rules;
    private readonly object _lockObject = new();
    private bool _isInitialized;

    /// <summary>
    /// 构造函数。
    /// </summary>
    public AdvancedRuleEngineService(ILogger<AdvancedRuleEngineService> logger, IOptions<RuntimeOptions> options)
    {
        _logger = logger;
        _options = options.Value;
        _rules = new Dictionary<string, RuleDefinition>();
        
        InitializeDefaultRules();
    }

    /// <inheritdoc />
    public Result<RuntimeDecisionDto> Evaluate(int currentLayer, InferenceResultDto inference)
    {
        try
        {
            _logger.LogDebug("执行规则引擎评估：当前层={CurrentLayer}，推理结果={Label}，置信度={Confidence:F3}", 
                currentLayer, inference.Label, inference.Confidence);

            if (!_isInitialized)
            {
                _logger.LogWarning("规则引擎未初始化，使用默认规则");
                return EvaluateWithDefaultRule(currentLayer, inference);
            }

            // 获取当前层的规则
            var layerRules = GetRulesForLayer(currentLayer);
            if (layerRules.Count == 0)
            {
                _logger.LogWarning("第 {CurrentLayer} 层没有配置规则，使用默认规则", currentLayer);
                return EvaluateWithDefaultRule(currentLayer, inference);
            }

            // 执行规则评估
            var evaluationContext = new RuleEvaluationContext
            {
                CurrentLayer = currentLayer,
                Inference = inference,
                Timestamp = DateTime.UtcNow
            };

            var results = new List<RuleEvaluationResult>();
            
            foreach (var rule in layerRules)
            {
                var result = EvaluateRule(rule, evaluationContext);
                results.Add(result);
                
                _logger.LogDebug("规则 {RuleName} 评估结果：{IsPass} - {Message}", 
                    rule.Name, result.IsPass, result.Message);
                
                // 如果是关键规则且失败，可以提前终止
                if (!result.IsPass && rule.IsCritical)
                {
                    _logger.LogInformation("关键规则 {RuleName} 失败，提前终止评估", rule.Name);
                    break;
                }
            }

            // 汇总评估结果
            var finalDecision = AggregateEvaluationResults(results, evaluationContext);
            
            _logger.LogInformation("规则引擎评估完成：{DecisionCode} - {DecisionMessage}", 
                finalDecision.Code, finalDecision.Message);
            
            return Result<RuntimeDecisionDto>.Success(finalDecision, message: "规则判定完成");
        }
        catch (Exception ex)
        {
            var traceId = Guid.NewGuid().ToString("N");
            _logger.LogError(ex, "规则引擎评估失败。TraceId: {TraceId}", traceId);
            var result = Result.FromException(ex, "RULE_ENGINE_EVALUATION_FAILED", "规则引擎评估失败", traceId);
            return Result<RuntimeDecisionDto>.FailWithTrace(result.Code, result.Message, result.TraceId ?? traceId, result.Errors.ToArray());
        }
    }

    /// <summary>
    /// 初始化默认规则。
    /// </summary>
    private void InitializeDefaultRules()
    {
        lock (_lockObject)
        {
            try
            {
                _logger.LogInformation("正在初始化默认规则...");

                // 添加基础缺陷检测规则
                var defectRule = new RuleDefinition
                {
                    Name = "DefectDetection",
                    Description = "缺陷检测规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.LabelEquals,
                            Parameter = "defect",
                            Operator = "equals",
                            ExpectedValue = "defect"
                        },
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = ">=",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "检测到缺陷",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 1,
                    Enabled = true
                };

                // 添加置信度规则
                var confidenceRule = new RuleDefinition
                {
                    Name = "ConfidenceCheck",
                    Description = "置信度检查规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = "<",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "置信度过低",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 2,
                    Enabled = true
                };

                // 添加正常通过规则
                var passRule = new RuleDefinition
                {
                    Name = "NormalPass",
                    Description = "正常通过规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.LabelEquals,
                            Parameter = "normal",
                            Operator = "equals",
                            ExpectedValue = "normal"
                        },
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = ">=",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsOK,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "正常检测"
                        }
                    },
                    IsCritical = false,
                    Priority = 3,
                    Enabled = true
                };

                // 添加数量检查规则
                var quantityRule = new RuleDefinition
                {
                    Name = "QuantityCheck",
                    Description = "部件数量检查规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.QuantityCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "3-5" // 期望3-5个部件
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件数量不符合要求",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 4,
                    Enabled = true
                };

                // 添加位置检查规则
                var positionRule = new RuleDefinition
                {
                    Name = "PositionCheck",
                    Description = "部件位置检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.PositionCheck,
                            Parameter = "screw", // 检查螺丝位置
                            Operator = "within",
                            ExpectedValue = "100,100,50" // 圆形区域：中心(100,100)，半径50
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件位置偏离",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 5,
                    Enabled = true
                };

                // 添加到位检查规则
                var placementRule = new RuleDefinition
                {
                    Name = "PlacementCheck",
                    Description = "部件到位检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.PlacementCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "bracket=2" // 期望2个支架
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件未完全到位",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 6,
                    Enabled = true
                };

                // 添加禁装检查规则
                var forbiddenRule = new RuleDefinition
                {
                    Name = "ForbiddenCheck",
                    Description = "禁装部件检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.ForbiddenCheck,
                            Parameter = "",
                            Operator = "not_contains",
                            ExpectedValue = "wrong_part,temp_part" // 禁止错误的部件和临时部件
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "发现禁装部件",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 7,
                    Enabled = true
                };

                // 添加顺序检查规则
                var sequenceRule = new RuleDefinition
                {
                    Name = "SequenceCheck",
                    Description = "装配顺序检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.SequenceCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "base>bracket>screw>cover" // 期望装配顺序
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "装配顺序错误",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 8,
                    Enabled = true
                };

                _rules["DefectDetection"] = defectRule;
                _rules["ConfidenceCheck"] = confidenceRule;
                _rules["NormalPass"] = passRule;
                _rules["QuantityCheck"] = quantityRule;
                _rules["PositionCheck"] = positionRule;
                _rules["PlacementCheck"] = placementRule;
                _rules["ForbiddenCheck"] = forbiddenRule;
                _rules["SequenceCheck"] = sequenceRule;

                _isInitialized = true;
                _logger.LogInformation("默认规则初始化完成，共加载 {Count} 条规则", _rules.Count);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "初始化默认规则失败");
            }
        }
    }

    /// <summary>
    /// 获取指定层的规则。
    /// </summary>
    private List<RuleDefinition> GetRulesForLayer(int layer)
    {
        return _rules.Values
            .Where(rule => rule.Layer == 0 || rule.Layer == layer)
            .Where(rule => rule.Enabled)
            .OrderBy(rule => rule.Priority)
            .ToList();
    }

    /// <summary>
    /// 评估单个规则。
    /// </summary>
    private RuleEvaluationResult EvaluateRule(RuleDefinition rule, RuleEvaluationContext context)
    {
        try
        {
            var conditionResults = new List<bool>();
            
            foreach (var condition in rule.Conditions)
            {
                var result = EvaluateCondition(condition, context);
                conditionResults.Add(result);
                
                // 如果是AND逻辑且有一个条件失败，可以提前退出
                if (!result && rule.ConditionLogic == ConditionLogic.And)
                {
                    break;
                }
            }

            // 根据逻辑运算符确定最终结果
            var isPass = rule.ConditionLogic == ConditionLogic.And 
                ? conditionResults.All(r => r)
                : conditionResults.Any(r => r);

            var message = isPass 
                ? $"规则 {rule.Name} 通过" 
                : $"规则 {rule.Name} 失败: {string.Join(", ", rule.Conditions.Select(c => c.Type))}";

            return new RuleEvaluationResult
            {
                RuleName = rule.Name,
                IsPass = isPass,
                Message = message,
                Action = isPass ? null : rule.Action,
                ExecutionTime = DateTime.UtcNow
            };
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "评估规则 {RuleName} 失败", rule.Name);
            return new RuleEvaluationResult
            {
                RuleName = rule.Name,
                IsPass = false,
                Message = $"规则评估异常: {ex.Message}",
                Action = new RuleAction
                {
                    Type = ActionType.MarkAsNG,
                    Parameters = new Dictionary<string, object>
                    {
                        ["reason"] = "规则评估异常",
                        ["severity"] = "high"
                    }
                },
                ExecutionTime = DateTime.UtcNow
            };
        }
    }

    /// <summary>
    /// 评估条件。
    /// </summary>
    private bool EvaluateCondition(RuleCondition condition, RuleEvaluationContext context)
    {
        return condition.Type switch
        {
            ConditionType.LabelEquals => EvaluateLabelEquals(condition, context),
            ConditionType.ConfidenceThreshold => EvaluateConfidenceThreshold(condition, context),
            ConditionType.QuantityCheck => EvaluateQuantityCheck(condition, context),
            ConditionType.PositionCheck => EvaluatePositionCheck(condition, context),
            ConditionType.PlacementCheck => EvaluatePlacementCheck(condition, context),
            ConditionType.ForbiddenCheck => EvaluateForbiddenCheck(condition, context),
            ConditionType.SequenceCheck => EvaluateSequenceCheck(condition, context),
            _ => false
        };
    }

    /// <summary>
    /// 评估标签等于条件。
    /// </summary>
    private bool EvaluateLabelEquals(RuleCondition condition, RuleEvaluationContext context)
    {
        var expectedLabel = condition.ExpectedValue;
        var actualLabel = context.Inference.Label;
        
        return condition.Operator switch
        {
            "equals" => actualLabel == expectedLabel,
            "not_equals" => actualLabel != expectedLabel,
            "contains" => actualLabel.Contains(expectedLabel),
            "not_contains" => !actualLabel.Contains(expectedLabel),
            _ => actualLabel == expectedLabel
        };
    }

    /// <summary>
    /// 评估置信度阈值条件。
    /// </summary>
    private bool EvaluateConfidenceThreshold(RuleCondition condition, RuleEvaluationContext context)
    {
        if (!decimal.TryParse(condition.ExpectedValue, out var threshold))
        {
            _logger.LogWarning("置信度阈值解析失败: {Value}", condition.ExpectedValue);
            return false;
        }

        var actualConfidence = (decimal)context.Inference.Confidence;
        
        return condition.Operator switch
        {
            ">=" => actualConfidence >= threshold,
            "<=" => actualConfidence <= threshold,
            ">" => actualConfidence > threshold,
            "<" => actualConfidence < threshold,
            "==" => actualConfidence == threshold,
            "!=" => actualConfidence != threshold,
            _ => actualConfidence >= threshold
        };
    }

    /// <summary>
    /// 评估数量检查条件。
    /// </summary>
    private bool EvaluateQuantityCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望数量范围，格式如 "min-max" 或 "exact"
            var expectedRange = condition.ExpectedValue;
            var actualCount = context.Inference.Detections.Count;

            _logger.LogDebug("数量检查：期望={ExpectedRange}，实际={ActualCount}", expectedRange, actualCount);

            if (expectedRange.Contains('-'))
            {
                // 范围检查，格式：min-max
                var parts = expectedRange.Split('-');
                if (parts.Length == 2 && int.TryParse(parts[0], out var min) && int.TryParse(parts[1], out var max))
                {
                    return actualCount >= min && actualCount <= max;
                }
            }
            else if (int.TryParse(expectedRange, out var exact))
            {
                // 精确数量检查
                return actualCount == exact;
            }

            _logger.LogWarning("数量检查条件解析失败: {Value}", expectedRange);
            return false;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "数量检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估位置检查条件。
    /// </summary>
    private bool EvaluatePositionCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望位置，格式如 "x_min:x_max,y_min:y_max" 或 "center_x,center_y,radius"
            var expectedPosition = condition.ExpectedValue;
            var detections = context.Inference.Detections.Where(d => d.ClassName == condition.Parameter || string.IsNullOrEmpty(condition.Parameter)).ToList();

            if (!detections.Any())
            {
                _logger.LogDebug("位置检查：未找到匹配的检测对象");
                return false;
            }

            // 检查是否所有检测对象都在期望位置范围内
            foreach (var detection in detections)
            {
                var isInRange = CheckPositionInRange(detection.CenterX, detection.CenterY, expectedPosition);
                if (!isInRange)
                {
                    _logger.LogDebug("位置检查失败：检测对象 {ClassName} 位置 ({X}, {Y}) 不在期望范围内 {Range}", 
                        detection.ClassName, detection.CenterX, detection.CenterY, expectedPosition);
                    return false;
                }
            }

            _logger.LogDebug("位置检查通过：所有 {Count} 个检测对象都在期望范围内", detections.Count);
            return true;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "位置检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估到位检查条件。
    /// </summary>
    private bool EvaluatePlacementCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望的到位状态，格式：className=expected_count
            var placementRule = condition.ExpectedValue;
            var parts = placementRule.Split('=');
            
            if (parts.Length != 2 || !int.TryParse(parts[1], out var expectedCount))
            {
                _logger.LogWarning("到位检查条件解析失败: {Value}", placementRule);
                return false;
            }

            var targetClass = parts[0];
            var actualCount = context.Inference.Detections.Count(d => d.ClassName == targetClass);

            _logger.LogDebug("到位检查：{ClassName} 期望={ExpectedCount}，实际={ActualCount}", 
                targetClass, expectedCount, actualCount);

            return actualCount >= expectedCount;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "到位检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估禁装检查条件。
    /// </summary>
    private bool EvaluateForbiddenCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 检查是否存在禁用的部件
            var forbiddenClasses = condition.ExpectedValue.Split(',', StringSplitOptions.RemoveEmptyEntries);
            var detections = context.Inference.Detections;

            foreach (var forbiddenClass in forbiddenClasses)
            {
                var forbiddenDetections = detections.Where(d => d.ClassName.Equals(forbiddenClass.Trim(), StringComparison.OrdinalIgnoreCase)).ToList();
                if (forbiddenDetections.Any())
                {
                    _logger.LogDebug("禁装检查失败：发现禁用部件 {ClassName}，数量={Count}", forbiddenClass, forbiddenDetections.Count);
                    return false; // 发现禁用部件，检查失败
                }
            }

            _logger.LogDebug("禁装检查通过：未发现禁用部件");
            return true;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "禁装检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估顺序检查条件。
    /// </summary>
    private bool EvaluateSequenceCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望顺序，格式如 "class1>class2>class3"
            var expectedSequence = condition.ExpectedValue;
            var sequenceParts = expectedSequence.Split('>', StringSplitOptions.RemoveEmptyEntries);
            
            // 按Y坐标排序检测对象（假设装配顺序是从上到下）
            var sortedDetections = context.Inference.Detections
                .Where(d => sequenceParts.Contains(d.ClassName))
                .OrderBy(d => d.CenterY)
                .Select(d => d.ClassName)
                .ToList();

            var actualSequence = string.Join(">", sortedDetections);
            var isCorrectOrder = actualSequence.Equals(expectedSequence, StringComparison.OrdinalIgnoreCase);

            _logger.LogDebug("顺序检查：期望={Expected}，实际={Actual}，结果={Result}", 
                expectedSequence, actualSequence, isCorrectOrder ? "通过" : "失败");

            return isCorrectOrder;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "顺序检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 检查位置是否在指定范围内。
    /// </summary>
    private static bool CheckPositionInRange(float centerX, float centerY, string rangeDefinition)
    {
        if (rangeDefinition.Contains(','))
        {
            // 圆形范围检查，格式：center_x,center_y,radius
            var parts = rangeDefinition.Split(',');
            if (parts.Length == 3 && 
                float.TryParse(parts[0], out var expectedCenterX) && 
                float.TryParse(parts[1], out var expectedCenterY) && 
                float.TryParse(parts[2], out var radius))
            {
                var distance = Math.Sqrt(Math.Pow(centerX - expectedCenterX, 2) + Math.Pow(centerY - expectedCenterY, 2));
                return distance <= radius;
            }
        }
        else if (rangeDefinition.Contains(':'))
        {
            // 矩形范围检查，格式：x_min:x_max,y_min:y_max
            var coordinates = rangeDefinition.Split(',');
            if (coordinates.Length == 2)
            {
                var xRange = coordinates[0].Split(':');
                var yRange = coordinates[1].Split(':');
                
                if (xRange.Length == 2 && yRange.Length == 2 &&
                    float.TryParse(xRange[0], out var xMin) && 
                    float.TryParse(xRange[1], out var xMax) &&
                    float.TryParse(yRange[0], out var yMin) && 
                    float.TryParse(yRange[1], out var yMax))
                {
                    return centerX >= xMin && centerX <= xMax && centerY >= yMin && centerY <= yMax;
                }
            }
        }

        return false;
    }

    /// <summary>
    /// 汇总评估结果。
    /// </summary>
    private RuntimeDecisionDto AggregateEvaluationResults(List<RuleEvaluationResult> results, RuleEvaluationContext context)
    {
        var failedRules = results.Where(r => !r.IsPass).ToList();
        var criticalFailures = failedRules.Where(r => r.Action?.Parameters?.ContainsKey("severity") == true && 
                                                      r.Action.Parameters["severity"].ToString() == "high").ToList();

        var isPass = failedRules.Count == 0;
        var decisionCode = isPass ? "RULE_PASS" : "RULE_NG";
        var decisionMessage = isPass 
            ? $"第 {context.CurrentLayer} 层所有规则通过" 
            : $"第 {context.CurrentLayer} 层规则失败: {string.Join(", ", failedRules.Select(r => r.RuleName))}";

        // 如果有关键失败，提升消息级别
        if (criticalFailures.Count > 0)
        {
            decisionCode = "RULE_CRITICAL_NG";
            decisionMessage = $"第 {context.CurrentLayer} 层关键规则失败: {string.Join(", ", criticalFailures.Select(r => r.RuleName))}";
        }

        return new RuntimeDecisionDto
        {
            IsPass = isPass,
            Code = decisionCode,
            Message = decisionMessage
        };
    }

    /// <summary>
    /// 使用默认规则评估。
    /// </summary>
    private Result<RuntimeDecisionDto> EvaluateWithDefaultRule(int currentLayer, InferenceResultDto inference)
    {
        var isPass = inference.Label == "normal" || inference.Label == "OK" || inference.Confidence < _options.NgConfidenceThreshold;
        var decision = new RuntimeDecisionDto
        {
            IsPass = isPass,
            Code = isPass ? "DEFAULT_RULE_PASS" : "DEFAULT_RULE_NG",
            Message = isPass
                ? $"第 {currentLayer} 层默认规则通过。"
                : $"第 {currentLayer} 层默认规则 NG：{inference.Label} (置信度: {inference.Confidence:F3})"
        };

        return Result<RuntimeDecisionDto>.Success(decision, message: "默认规则判定完成");
    }

    /// <summary>
    /// 释放资源。
    /// </summary>
    public void Dispose()
    {
        try
        {
            _rules.Clear();
            _isInitialized = false;
            _logger.LogInformation("规则引擎服务已释放");
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "释放规则引擎服务资源时发生错误");
        }
    }
}

#region 规则引擎内部类型

/// <summary>
/// 规则定义。
/// </summary>
internal sealed class RuleDefinition
{
    public string Name { get; init; } = string.Empty;
    public string Description { get; init; } = string.Empty;
    public int Layer { get; init; }
    public List<RuleCondition> Conditions { get; init; } = new();
    public RuleAction Action { get; init; } = new();
    public bool IsCritical { get; init; }
    public int Priority { get; init; }
    public bool Enabled { get; init; }
    public ConditionLogic ConditionLogic { get; init; } = ConditionLogic.And;
}

/// <summary>
/// 规则条件。
/// </summary>
internal sealed class RuleCondition
{
    public ConditionType Type { get; init; }
    public string Parameter { get; init; } = string.Empty;
    public string Operator { get; init; } = string.Empty;
    public string ExpectedValue { get; init; } = string.Empty;
}

/// <summary>
/// 规则动作。
/// </summary>
internal sealed class RuleAction
{
    public ActionType Type { get; init; }
    public Dictionary<string, object> Parameters { get; init; } = new();
}

/// <summary>
/// 规则评估上下文。
/// </summary>
internal sealed class RuleEvaluationContext
{
    public int CurrentLayer { get; init; }
    public InferenceResultDto Inference { get; init; } = new();
    public DateTime Timestamp { get; init; }
}

/// <summary>
/// 规则评估结果。
/// </summary>
internal sealed class RuleEvaluationResult
{
    public string RuleName { get; init; } = string.Empty;
    public bool IsPass { get; init; }
    public string Message { get; init; } = string.Empty;
    public RuleAction? Action { get; init; }
    public DateTime ExecutionTime { get; init; }
}

/// <summary>
/// 条件类型。
/// </summary>
internal enum ConditionType
{
    LabelEquals,
    ConfidenceThreshold,
    QuantityCheck,
    PositionCheck,
    PlacementCheck,
    ForbiddenCheck,
    SequenceCheck
}

/// <summary>
/// 动作类型。
/// </summary>
internal enum ActionType
{
    MarkAsOK,
    MarkAsNG,
    LogWarning,
    Custom
}

/// <summary>
/// 条件逻辑。
/// </summary>
internal enum ConditionLogic
{
    And,
    Or
}

#endregion
#if false
using Microsoft.Extensions.Logging;
using Microsoft.Extensions.Options;
using OrpaonVision.Core.Results;
using OrpaonVision.SiteApp.Runtime.Contracts;
using OrpaonVision.SiteApp.Runtime.Options;
using System.Text.Json;

namespace OrpaonVision.SiteApp.Runtime.Services;

/// <summary>
/// 高级规则引擎服务实现。
/// 支持复杂规则配置、多条件判断、动态规则加载等功能。
/// </summary>
public sealed class AdvancedRuleEngineService : IRuleEngineService, IDisposable
{
    private readonly ILogger<AdvancedRuleEngineService> _logger;
    private readonly RuntimeOptions _options;
    private readonly Dictionary<string, RuleDefinition> _rules;
    private readonly object _lockObject = new();
    private bool _isInitialized;

    /// <summary>
    /// 构造函数。
    /// </summary>
    public AdvancedRuleEngineService(ILogger<AdvancedRuleEngineService> logger, IOptions<RuntimeOptions> options)
    {
        _logger = logger;
        _options = options.Value;
        _rules = new Dictionary<string, RuleDefinition>();
        
        InitializeDefaultRules();
    }

    /// <inheritdoc />
    public Result<RuntimeDecisionDto> Evaluate(int currentLayer, InferenceResultDto inference)
    {
        try
        {
            _logger.LogDebug("执行规则引擎评估：当前层={CurrentLayer}，推理结果={Label}，置信度={Confidence:F3}", 
                currentLayer, inference.Label, inference.Confidence);

            if (!_isInitialized)
            {
                _logger.LogWarning("规则引擎未初始化，使用默认规则");
                return EvaluateWithDefaultRule(currentLayer, inference);
            }

            // 获取当前层的规则
            var layerRules = GetRulesForLayer(currentLayer);
            if (layerRules.Count == 0)
            {
                _logger.LogWarning("第 {CurrentLayer} 层没有配置规则，使用默认规则", currentLayer);
                return EvaluateWithDefaultRule(currentLayer, inference);
            }

            // 执行规则评估
            var evaluationContext = new RuleEvaluationContext
            {
                CurrentLayer = currentLayer,
                Inference = inference,
                Timestamp = DateTime.UtcNow
            };

            var results = new List<RuleEvaluationResult>();
            
            foreach (var rule in layerRules)
            {
                var result = EvaluateRule(rule, evaluationContext);
                results.Add(result);
                
                _logger.LogDebug("规则 {RuleName} 评估结果：{IsPass} - {Message}", 
                    rule.Name, result.IsPass, result.Message);
                
                // 如果是关键规则且失败，可以提前终止
                if (!result.IsPass && rule.IsCritical)
                {
                    _logger.LogInformation("关键规则 {RuleName} 失败，提前终止评估", rule.Name);
                    break;
                }
            }

            // 汇总评估结果
            var finalDecision = AggregateEvaluationResults(results, evaluationContext);
            
            _logger.LogInformation("规则引擎评估完成：{DecisionCode} - {DecisionMessage}", 
                finalDecision.Code, finalDecision.Message);
            
            return Result<RuntimeDecisionDto>.Success(finalDecision, message: "规则判定完成");
        }
        catch (Exception ex)
        {
            var traceId = Guid.NewGuid().ToString("N");
            _logger.LogError(ex, "规则引擎评估失败。TraceId: {TraceId}", traceId);
            var result = Result.FromException(ex, "RULE_ENGINE_EVALUATION_FAILED", "规则引擎评估失败", traceId);
            return Result<RuntimeDecisionDto>.FailWithTrace(result.Code, result.Message, result.TraceId ?? traceId, result.Errors.ToArray());
        }
    }

    /// <summary>
    /// 初始化默认规则。
    /// </summary>
    private void InitializeDefaultRules()
    {
        lock (_lockObject)
        {
            try
            {
                _logger.LogInformation("正在初始化默认规则...");

                // 添加基础缺陷检测规则
                var defectRule = new RuleDefinition
                {
                    Name = "DefectDetection",
                    Description = "缺陷检测规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.LabelEquals,
                            Parameter = "defect",
                            Operator = "equals",
                            ExpectedValue = "defect"
                        },
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = ">=",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "检测到缺陷",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 1,
                    Enabled = true
                };

                // 添加置信度规则
                var confidenceRule = new RuleDefinition
                {
                    Name = "ConfidenceCheck",
                    Description = "置信度检查规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = "<",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "置信度过低",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 2,
                    Enabled = true
                };

                // 添加正常通过规则
                var passRule = new RuleDefinition
                {
                    Name = "NormalPass",
                    Description = "正常通过规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.LabelEquals,
                            Parameter = "normal",
                            Operator = "equals",
                            ExpectedValue = "normal"
                        },
                        new()
                        {
                            Type = ConditionType.ConfidenceThreshold,
                            Parameter = "confidence",
                            Operator = ">=",
                            ExpectedValue = _options.NgConfidenceThreshold.ToString("F3")
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsOK,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "正常检测"
                        }
                    },
                    IsCritical = false,
                    Priority = 3,
                    Enabled = true
                };

                // 添加数量检查规则
                var quantityRule = new RuleDefinition
                {
                    Name = "QuantityCheck",
                    Description = "部件数量检查规则",
                    Layer = 0, // 适用于所有层
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.QuantityCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "3-5" // 期望3-5个部件
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件数量不符合要求",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 4,
                    Enabled = true
                };

                // 添加位置检查规则
                var positionRule = new RuleDefinition
                {
                    Name = "PositionCheck",
                    Description = "部件位置检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.PositionCheck,
                            Parameter = "screw", // 检查螺丝位置
                            Operator = "within",
                            ExpectedValue = "100,100,50" // 圆形区域：中心(100,100)，半径50
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件位置偏离",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 5,
                    Enabled = true
                };

                // 添加到位检查规则
                var placementRule = new RuleDefinition
                {
                    Name = "PlacementCheck",
                    Description = "部件到位检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.PlacementCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "bracket=2" // 期望2个支架
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "部件未完全到位",
                            ["severity"] = "medium"
                        }
                    },
                    IsCritical = false,
                    Priority = 6,
                    Enabled = true
                };

                // 添加禁装检查规则
                var forbiddenRule = new RuleDefinition
                {
                    Name = "ForbiddenCheck",
                    Description = "禁装部件检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.ForbiddenCheck,
                            Parameter = "",
                            Operator = "not_contains",
                            ExpectedValue = "wrong_part,temp_part" // 禁止错误的部件和临时部件
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "发现禁装部件",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 7,
                    Enabled = true
                };

                // 添加顺序检查规则
                var sequenceRule = new RuleDefinition
                {
                    Name = "SequenceCheck",
                    Description = "装配顺序检查规则",
                    Layer = 0,
                    Conditions = new List<RuleCondition>
                    {
                        new()
                        {
                            Type = ConditionType.SequenceCheck,
                            Parameter = "",
                            Operator = "equals",
                            ExpectedValue = "base>bracket>screw>cover" // 期望装配顺序
                        }
                    },
                    Action = new RuleAction
                    {
                        Type = ActionType.MarkAsNG,
                        Parameters = new Dictionary<string, object>
                        {
                            ["reason"] = "装配顺序错误",
                            ["severity"] = "high"
                        }
                    },
                    IsCritical = true,
                    Priority = 8,
                    Enabled = true
                };

                _rules["DefectDetection"] = defectRule;
                _rules["ConfidenceCheck"] = confidenceRule;
                _rules["NormalPass"] = passRule;
                _rules["QuantityCheck"] = quantityRule;
                _rules["PositionCheck"] = positionRule;
                _rules["PlacementCheck"] = placementRule;
                _rules["ForbiddenCheck"] = forbiddenRule;
                _rules["SequenceCheck"] = sequenceRule;

                _isInitialized = true;
                _logger.LogInformation("默认规则初始化完成，共加载 {Count} 条规则", _rules.Count);
            }
            catch (Exception ex)
            {
                _logger.LogError(ex, "初始化默认规则失败");
            }
        }
    }

    /// <summary>
    /// 获取指定层的规则。
    /// </summary>
    private List<RuleDefinition> GetRulesForLayer(int layer)
    {
        return _rules.Values
            .Where(rule => rule.Layer == 0 || rule.Layer == layer)
            .Where(rule => rule.Enabled)
            .OrderBy(rule => rule.Priority)
            .ToList();
    }

    /// <summary>
    /// 评估单个规则。
    /// </summary>
    private RuleEvaluationResult EvaluateRule(RuleDefinition rule, RuleEvaluationContext context)
    {
        try
        {
            var conditionResults = new List<bool>();
            
            foreach (var condition in rule.Conditions)
            {
                var result = EvaluateCondition(condition, context);
                conditionResults.Add(result);
                
                // 如果是AND逻辑且有一个条件失败，可以提前退出
                if (!result && rule.ConditionLogic == ConditionLogic.And)
                {
                    break;
                }
            }

            // 根据逻辑运算符确定最终结果
            var isPass = rule.ConditionLogic == ConditionLogic.And 
                ? conditionResults.All(r => r)
                : conditionResults.Any(r => r);

            var message = isPass 
                ? $"规则 {rule.Name} 通过" 
                : $"规则 {rule.Name} 失败: {string.Join(", ", rule.Conditions.Select(c => c.Type))}";

            return new RuleEvaluationResult
            {
                RuleName = rule.Name,
                IsPass = isPass,
                Message = message,
                Action = isPass ? null : rule.Action,
                ExecutionTime = DateTime.UtcNow
            };
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "评估规则 {RuleName} 失败", rule.Name);
            return new RuleEvaluationResult
            {
                RuleName = rule.Name,
                IsPass = false,
                Message = $"规则评估异常: {ex.Message}",
                Action = new RuleAction
                {
                    Type = ActionType.MarkAsNG,
                    Parameters = new Dictionary<string, object>
                    {
                        ["reason"] = "规则评估异常",
                        ["severity"] = "high"
                    }
                },
                ExecutionTime = DateTime.UtcNow
            };
        }
    }

    /// <summary>
    /// 评估条件。
    /// </summary>
    private bool EvaluateCondition(RuleCondition condition, RuleEvaluationContext context)
    {
        return condition.Type switch
        {
            ConditionType.LabelEquals => EvaluateLabelEquals(condition, context),
            ConditionType.ConfidenceThreshold => EvaluateConfidenceThreshold(condition, context),
            ConditionType.QuantityCheck => EvaluateQuantityCheck(condition, context),
            ConditionType.PositionCheck => EvaluatePositionCheck(condition, context),
            ConditionType.PlacementCheck => EvaluatePlacementCheck(condition, context),
            ConditionType.ForbiddenCheck => EvaluateForbiddenCheck(condition, context),
            ConditionType.SequenceCheck => EvaluateSequenceCheck(condition, context),
            _ => false
        };
    }

    /// <summary>
    /// 评估标签等于条件。
    /// </summary>
    private bool EvaluateLabelEquals(RuleCondition condition, RuleEvaluationContext context)
    {
        var expectedLabel = condition.ExpectedValue;
        var actualLabel = context.Inference.Label;
        
        return condition.Operator switch
        {
            "equals" => actualLabel == expectedLabel,
            "not_equals" => actualLabel != expectedLabel,
            "contains" => actualLabel.Contains(expectedLabel),
            "not_contains" => !actualLabel.Contains(expectedLabel),
            _ => actualLabel == expectedLabel
        };
    }

    /// <summary>
    /// 评估置信度阈值条件。
    /// </summary>
    private bool EvaluateConfidenceThreshold(RuleCondition condition, RuleEvaluationContext context)
    {
        if (!decimal.TryParse(condition.ExpectedValue, out var threshold))
        {
            _logger.LogWarning("置信度阈值解析失败: {Value}", condition.ExpectedValue);
            return false;
        }

        var actualConfidence = (decimal)context.Inference.Confidence;
        
        return condition.Operator switch
        {
            ">=" => actualConfidence >= threshold,
            "<=" => actualConfidence <= threshold,
            ">" => actualConfidence > threshold,
            "<" => actualConfidence < threshold,
            "==" => actualConfidence == threshold,
            "!=" => actualConfidence != threshold,
            _ => actualConfidence >= threshold
        };
    }

    /// <summary>
    /// 评估数量检查条件。
    /// </summary>
    private bool EvaluateQuantityCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望数量范围，格式如 "min-max" 或 "exact"
            var expectedRange = condition.ExpectedValue;
            var actualCount = context.Inference.Detections.Count;

            _logger.LogDebug("数量检查：期望={ExpectedRange}，实际={ActualCount}", expectedRange, actualCount);

            if (expectedRange.Contains('-'))
            {
                // 范围检查，格式：min-max
                var parts = expectedRange.Split('-');
                if (parts.Length == 2 && int.TryParse(parts[0], out var min) && int.TryParse(parts[1], out var max))
                {
                    return actualCount >= min && actualCount <= max;
                }
            }
            else if (int.TryParse(expectedRange, out var exact))
            {
                // 精确数量检查
                return actualCount == exact;
            }

            _logger.LogWarning("数量检查条件解析失败: {Value}", expectedRange);
            return false;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "数量检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估位置检查条件。
    /// </summary>
    private bool EvaluatePositionCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望位置，格式如 "x_min:x_max,y_min:y_max" 或 "center_x,center_y,radius"
            var expectedPosition = condition.ExpectedValue;
            var detections = context.Inference.Detections.Where(d => d.ClassName == condition.Parameter || string.IsNullOrEmpty(condition.Parameter)).ToList();

            if (!detections.Any())
            {
                _logger.LogDebug("位置检查：未找到匹配的检测对象");
                return false;
            }

            // 检查是否所有检测对象都在期望位置范围内
            foreach (var detection in detections)
            {
                var isInRange = CheckPositionInRange(detection.CenterX, detection.CenterY, expectedPosition);
                if (!isInRange)
                {
                    _logger.LogDebug("位置检查失败：检测对象 {ClassName} 位置 ({X}, {Y}) 不在期望范围内 {Range}", 
                        detection.ClassName, detection.CenterX, detection.CenterY, expectedPosition);
                    return false;
                }
            }

            _logger.LogDebug("位置检查通过：所有 {Count} 个检测对象都在期望范围内", detections.Count);
            return true;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "位置检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估到位检查条件。
    /// </summary>
    private bool EvaluatePlacementCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望的到位状态，格式：className=expected_count
            var placementRule = condition.ExpectedValue;
            var parts = placementRule.Split('=');
            
            if (parts.Length != 2 || !int.TryParse(parts[1], out var expectedCount))
            {
                _logger.LogWarning("到位检查条件解析失败: {Value}", placementRule);
                return false;
            }

            var targetClass = parts[0];
            var actualCount = context.Inference.Detections.Count(d => d.ClassName == targetClass);

            _logger.LogDebug("到位检查：{ClassName} 期望={ExpectedCount}，实际={ActualCount}", 
                targetClass, expectedCount, actualCount);

            return actualCount >= expectedCount;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "到位检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估禁装检查条件。
    /// </summary>
    private bool EvaluateForbiddenCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 检查是否存在禁用的部件
            var forbiddenClasses = condition.ExpectedValue.Split(',', StringSplitOptions.RemoveEmptyEntries);
            var detections = context.Inference.Detections;

            foreach (var forbiddenClass in forbiddenClasses)
            {
                var forbiddenDetections = detections.Where(d => d.ClassName.Equals(forbiddenClass.Trim(), StringComparison.OrdinalIgnoreCase)).ToList();
                if (forbiddenDetections.Any())
                {
                    _logger.LogDebug("禁装检查失败：发现禁用部件 {ClassName}，数量={Count}", forbiddenClass, forbiddenDetections.Count);
                    return false; // 发现禁用部件，检查失败
                }
            }

            _logger.LogDebug("禁装检查通过：未发现禁用部件");
            return true;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "禁装检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 评估顺序检查条件。
    /// </summary>
    private bool EvaluateSequenceCheck(RuleCondition condition, RuleEvaluationContext context)
    {
        try
        {
            // 解析期望顺序，格式如 "class1>class2>class3"
            var expectedSequence = condition.ExpectedValue;
            var sequenceParts = expectedSequence.Split('>', StringSplitOptions.RemoveEmptyEntries);
            
            // 按Y坐标排序检测对象（假设装配顺序是从上到下）
            var sortedDetections = context.Inference.Detections
                .Where(d => sequenceParts.Contains(d.ClassName))
                .OrderBy(d => d.CenterY)
                .Select(d => d.ClassName)
                .ToList();

            var actualSequence = string.Join(">", sortedDetections);
            var isCorrectOrder = actualSequence.Equals(expectedSequence, StringComparison.OrdinalIgnoreCase);

            _logger.LogDebug("顺序检查：期望={Expected}，实际={Actual}，结果={Result}", 
                expectedSequence, actualSequence, isCorrectOrder ? "通过" : "失败");

            return isCorrectOrder;
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "顺序检查评估失败");
            return false;
        }
    }

    /// <summary>
    /// 检查位置是否在指定范围内。
    /// </summary>
    private static bool CheckPositionInRange(float centerX, float centerY, string rangeDefinition)
    {
        if (rangeDefinition.Contains(','))
        {
            // 圆形范围检查，格式：center_x,center_y,radius
            var parts = rangeDefinition.Split(',');
            if (parts.Length == 3 && 
                float.TryParse(parts[0], out var expectedCenterX) && 
                float.TryParse(parts[1], out var expectedCenterY) && 
                float.TryParse(parts[2], out var radius))
            {
                var distance = Math.Sqrt(Math.Pow(centerX - expectedCenterX, 2) + Math.Pow(centerY - expectedCenterY, 2));
                return distance <= radius;
            }
        }
        else if (rangeDefinition.Contains(':'))
        {
            // 矩形范围检查，格式：x_min:x_max,y_min:y_max
            var coordinates = rangeDefinition.Split(',');
            if (coordinates.Length == 2)
            {
                var xRange = coordinates[0].Split(':');
                var yRange = coordinates[1].Split(':');
                
                if (xRange.Length == 2 && yRange.Length == 2 &&
                    float.TryParse(xRange[0], out var xMin) && 
                    float.TryParse(xRange[1], out var xMax) &&
                    float.TryParse(yRange[0], out var yMin) && 
                    float.TryParse(yRange[1], out var yMax))
                {
                    return centerX >= xMin && centerX <= xMax && centerY >= yMin && centerY <= yMax;
                }
            }
        }

        return false;
    }

    /// <summary>
    /// 汇总评估结果。
    /// </summary>
    private RuntimeDecisionDto AggregateEvaluationResults(List<RuleEvaluationResult> results, RuleEvaluationContext context)
    {
        var failedRules = results.Where(r => !r.IsPass).ToList();
        var criticalFailures = failedRules.Where(r => r.Action?.Parameters?.ContainsKey("severity") == true && 
                                                      r.Action.Parameters["severity"].ToString() == "high").ToList();

        var isPass = failedRules.Count == 0;
        var decisionCode = isPass ? "RULE_PASS" : "RULE_NG";
        var decisionMessage = isPass 
            ? $"第 {context.CurrentLayer} 层所有规则通过" 
            : $"第 {context.CurrentLayer} 层规则失败: {string.Join(", ", failedRules.Select(r => r.RuleName))}";

        // 如果有关键失败，提升消息级别
        if (criticalFailures.Count > 0)
        {
            decisionCode = "RULE_CRITICAL_NG";
            decisionMessage = $"第 {context.CurrentLayer} 层关键规则失败: {string.Join(", ", criticalFailures.Select(r => r.RuleName))}";
        }

        return new RuntimeDecisionDto
        {
            IsPass = isPass,
            Code = decisionCode,
            Message = decisionMessage
        };
    }

    /// <summary>
    /// 使用默认规则评估。
    /// </summary>
    private Result<RuntimeDecisionDto> EvaluateWithDefaultRule(int currentLayer, InferenceResultDto inference)
    {
        var isPass = inference.Label == "normal" || inference.Label == "OK" || inference.Confidence < _options.NgConfidenceThreshold;
        var decision = new RuntimeDecisionDto
        {
            IsPass = isPass,
            Code = isPass ? "DEFAULT_RULE_PASS" : "DEFAULT_RULE_NG",
            Message = isPass
                ? $"第 {currentLayer} 层默认规则通过。"
                : $"第 {currentLayer} 层默认规则 NG：{inference.Label} (置信度: {inference.Confidence:F3})"
        };

        return Result<RuntimeDecisionDto>.Success(decision, message: "默认规则判定完成");
    }

    /// <summary>
    /// 释放资源。
    /// </summary>
    public void Dispose()
    {
        try
        {
            _rules.Clear();
            _isInitialized = false;
            _logger.LogInformation("规则引擎服务已释放");
        }
        catch (Exception ex)
        {
            _logger.LogError(ex, "释放规则引擎服务资源时发生错误");
        }
    }
}

#region 规则引擎内部类型

/// <summary>
/// 规则定义。
/// </summary>
internal sealed class RuleDefinition
{
    public string Name { get; init; } = string.Empty;
    public string Description { get; init; } = string.Empty;
    public int Layer { get; init; }
    public List<RuleCondition> Conditions { get; init; } = new();
    public RuleAction Action { get; init; } = new();
    public bool IsCritical { get; init; }
    public int Priority { get; init; }
    public bool Enabled { get; init; }
    public ConditionLogic ConditionLogic { get; init; } = ConditionLogic.And;
}

/// <summary>
/// 规则条件。
/// </summary>
internal sealed class RuleCondition
{
    public ConditionType Type { get; init; }
    public string Parameter { get; init; } = string.Empty;
    public string Operator { get; init; } = string.Empty;
    public string ExpectedValue { get; init; } = string.Empty;
}

/// <summary>
/// 规则动作。
/// </summary>
internal sealed class RuleAction
{
    public ActionType Type { get; init; }
    public Dictionary<string, object> Parameters { get; init; } = new();
}

/// <summary>
/// 规则评估上下文。
/// </summary>
internal sealed class RuleEvaluationContext
{
    public int CurrentLayer { get; init; }
    public InferenceResultDto Inference { get; init; } = new();
    public DateTime Timestamp { get; init; }
}

/// <summary>
/// 规则评估结果。
/// </summary>
internal sealed class RuleEvaluationResult
{
    public string RuleName { get; init; } = string.Empty;
    public bool IsPass { get; init; }
    public string Message { get; init; } = string.Empty;
    public RuleAction? Action { get; init; }
    public DateTime ExecutionTime { get; init; }
}

/// <summary>
/// 条件类型。
/// </summary>
internal enum ConditionType
{
    LabelEquals,
    ConfidenceThreshold,
    QuantityCheck,
    PositionCheck,
    PlacementCheck,
    ForbiddenCheck,
    SequenceCheck
}

/// <summary>
/// 动作类型。
/// </summary>
internal enum ActionType
{
    MarkAsOK,
    MarkAsNG,
    LogWarning,
    Custom
}

/// <summary>
/// 条件逻辑。
/// </summary>
internal enum ConditionLogic
{
    And,
    Or
}

#endregion
#endif