quantrs2_tytan/

realtime_quantum_integration.rs

//! Real-time Quantum Computing Integration
//!
//! This module provides live quantum hardware monitoring, dynamic resource allocation,
//! queue management, and real-time performance analytics for quantum computing systems.

#![allow(dead_code)]

use scirs2_core::ndarray::{Array1, Array2};
use serde::{Deserialize, Serialize};
use std::collections::{BTreeMap, HashMap, VecDeque};
use std::sync::{Arc, Mutex, RwLock};
use std::thread;
use std::time::{Duration, Instant, SystemTime};

/// Real-time quantum system manager
pub struct RealtimeQuantumManager {
    /// Hardware monitors
    hardware_monitors: HashMap<String, Arc<Mutex<HardwareMonitor>>>,
    /// Resource allocator
    resource_allocator: Arc<RwLock<ResourceAllocator>>,
    /// Queue manager
    queue_manager: Arc<Mutex<QueueManager>>,
    /// Performance analytics engine
    performance_analytics: Arc<RwLock<PerformanceAnalytics>>,
    /// Fault detection system
    fault_detector: Arc<Mutex<FaultDetectionSystem>>,
    /// Configuration
    config: RealtimeConfig,
    /// System state
    system_state: Arc<RwLock<SystemState>>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RealtimeConfig {
    /// Monitoring interval
    pub monitoring_interval: Duration,
    /// Maximum queue size
    pub max_queue_size: usize,
    /// Resource allocation strategy
    pub allocation_strategy: AllocationStrategy,
    /// Fault detection sensitivity
    pub fault_detection_sensitivity: f64,
    /// Performance analytics settings
    pub analytics_config: AnalyticsConfig,
    /// Auto-recovery enabled
    pub auto_recovery_enabled: bool,
    /// Alert thresholds
    pub alert_thresholds: AlertThresholds,
    /// Data retention period
    pub data_retention_period: Duration,
}

impl Default for RealtimeConfig {
    fn default() -> Self {
        Self {
            monitoring_interval: Duration::from_millis(100),
            max_queue_size: 1000,
            allocation_strategy: AllocationStrategy::LoadBalanced,
            fault_detection_sensitivity: 0.95,
            analytics_config: AnalyticsConfig::default(),
            auto_recovery_enabled: true,
            alert_thresholds: AlertThresholds::default(),
            data_retention_period: Duration::from_secs(24 * 3600), // 24 hours
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AllocationStrategy {
    FirstFit,
    BestFit,
    LoadBalanced,
    PriorityBased,
    DeadlineAware,
    Adaptive,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AnalyticsConfig {
    /// Enable real-time metrics collection
    pub real_time_metrics: bool,
    /// Enable predictive analytics
    pub predictive_analytics: bool,
    /// Metrics aggregation interval
    pub aggregation_interval: Duration,
    /// Historical data analysis depth
    pub analysis_depth: Duration,
    /// Performance prediction horizon
    pub prediction_horizon: Duration,
}

impl Default for AnalyticsConfig {
    fn default() -> Self {
        Self {
            real_time_metrics: true,
            predictive_analytics: true,
            aggregation_interval: Duration::from_secs(60),
            analysis_depth: Duration::from_secs(3600), // 1 hour
            prediction_horizon: Duration::from_secs(1800), // 30 minutes
        }
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AlertThresholds {
    /// CPU utilization threshold
    pub cpu_threshold: f64,
    /// Memory utilization threshold
    pub memory_threshold: f64,
    /// Queue length threshold
    pub queue_threshold: usize,
    /// Error rate threshold
    pub error_rate_threshold: f64,
    /// Response time threshold
    pub response_time_threshold: Duration,
    /// Hardware failure threshold
    pub hardware_failure_threshold: f64,
}

impl Default for AlertThresholds {
    fn default() -> Self {
        Self {
            cpu_threshold: 0.85,
            memory_threshold: 0.90,
            queue_threshold: 100,
            error_rate_threshold: 0.05,
            response_time_threshold: Duration::from_secs(300),
            hardware_failure_threshold: 0.01,
        }
    }
}

/// Live hardware monitor for quantum devices
#[allow(dead_code)]
pub struct HardwareMonitor {
    /// Device information
    device_info: DeviceInfo,
    /// Current status
    current_status: DeviceStatus,
    /// Metrics history
    metrics_history: VecDeque<DeviceMetrics>,
    /// Calibration data
    calibration_data: CalibrationData,
    /// Monitor configuration
    monitor_config: MonitorConfig,
    /// Last update time
    last_update: Instant,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeviceInfo {
    /// Device ID
    pub device_id: String,
    /// Device type
    pub device_type: DeviceType,
    /// Device capabilities
    pub capabilities: DeviceCapabilities,
    /// Location information
    pub location: LocationInfo,
    /// Connection details
    pub connection: ConnectionInfo,
    /// Specifications
    pub specifications: DeviceSpecifications,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum DeviceType {
    SuperconductingQuantumProcessor,
    IonTrapQuantumComputer,
    PhotonicQuantumComputer,
    QuantumAnnealer,
    QuantumSimulator,
    HybridSystem,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeviceCapabilities {
    /// Number of qubits
    pub num_qubits: usize,
    /// Supported gates
    pub supported_gates: Vec<String>,
    /// Connectivity graph
    pub connectivity: ConnectivityGraph,
    /// Maximum circuit depth
    pub max_circuit_depth: usize,
    /// Measurement capabilities
    pub measurement_capabilities: MeasurementCapabilities,
    /// Error rates
    pub error_rates: ErrorRates,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConnectivityGraph {
    /// Adjacency matrix
    pub adjacency_matrix: Vec<Vec<bool>>,
    /// Connectivity type
    pub connectivity_type: ConnectivityType,
    /// Coupling strengths
    pub coupling_strengths: HashMap<(usize, usize), f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ConnectivityType {
    AllToAll,
    NearestNeighbor,
    Grid2D,
    Grid3D,
    Tree,
    Custom,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MeasurementCapabilities {
    /// Measurement bases
    pub measurement_bases: Vec<MeasurementBasis>,
    /// Measurement fidelity
    pub measurement_fidelity: f64,
    /// Readout time
    pub readout_time: Duration,
    /// Simultaneous measurements
    pub simultaneous_measurements: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum MeasurementBasis {
    Computational,
    Pauli(PauliBasis),
    Custom(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PauliBasis {
    X,
    Y,
    Z,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ErrorRates {
    /// Single-qubit gate error
    pub single_qubit_gate_error: f64,
    /// Two-qubit gate error
    pub two_qubit_gate_error: f64,
    /// Measurement error
    pub measurement_error: f64,
    /// Decoherence rates
    pub decoherence_rates: DecoherenceRates,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DecoherenceRates {
    /// T1 time (relaxation)
    pub t1_time: Duration,
    /// T2 time (dephasing)
    pub t2_time: Duration,
    /// T2* time (inhomogeneous dephasing)
    pub t2_star_time: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LocationInfo {
    /// Physical location
    pub physical_location: String,
    /// Timezone
    pub timezone: String,
    /// Coordinates
    pub coordinates: Option<(f64, f64)>,
    /// Network latency
    pub network_latency: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConnectionInfo {
    /// Endpoint URL
    pub endpoint: String,
    /// Authentication type
    pub auth_type: AuthenticationType,
    /// Connection status
    pub connection_status: ConnectionStatus,
    /// API version
    pub api_version: String,
    /// Rate limits
    pub rate_limits: RateLimits,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AuthenticationType {
    ApiKey,
    OAuth2,
    Certificate,
    Token,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ConnectionStatus {
    Connected,
    Connecting,
    Disconnected,
    Error(String),
    Maintenance,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RateLimits {
    /// Requests per minute
    pub requests_per_minute: usize,
    /// Concurrent requests
    pub concurrent_requests: usize,
    /// Data transfer limits
    pub data_transfer_limits: DataTransferLimits,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataTransferLimits {
    /// Maximum upload size
    pub max_upload_size: usize,
    /// Maximum download size
    pub max_download_size: usize,
    /// Bandwidth limit
    pub bandwidth_limit: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeviceSpecifications {
    /// Operating temperature
    pub operating_temperature: f64,
    /// Operating frequency range
    pub frequency_range: (f64, f64),
    /// Power consumption
    pub power_consumption: f64,
    /// Physical dimensions
    pub dimensions: PhysicalDimensions,
    /// Environmental requirements
    pub environmental_requirements: EnvironmentalRequirements,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PhysicalDimensions {
    /// Length in meters
    pub length: f64,
    /// Width in meters
    pub width: f64,
    /// Height in meters
    pub height: f64,
    /// Weight in kilograms
    pub weight: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EnvironmentalRequirements {
    /// Temperature range
    pub temperature_range: (f64, f64),
    /// Humidity range
    pub humidity_range: (f64, f64),
    /// Vibration tolerance
    pub vibration_tolerance: f64,
    /// Electromagnetic shielding
    pub em_shielding_required: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeviceStatus {
    /// Overall status
    pub overall_status: OverallStatus,
    /// Availability
    pub availability: Availability,
    /// Current load
    pub current_load: f64,
    /// Queue status
    pub queue_status: QueueStatus,
    /// Health indicators
    pub health_indicators: HealthIndicators,
    /// Last maintenance
    pub last_maintenance: SystemTime,
    /// Next scheduled maintenance
    pub next_maintenance: Option<SystemTime>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum OverallStatus {
    Online,
    Offline,
    Maintenance,
    Calibration,
    Error,
    Degraded,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Availability {
    /// Is device available
    pub available: bool,
    /// Expected availability time
    pub expected_available_time: Option<SystemTime>,
    /// Availability percentage
    pub availability_percentage: f64,
    /// Planned downtime
    pub planned_downtime: Vec<MaintenanceWindow>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MaintenanceWindow {
    /// Start time
    pub start_time: SystemTime,
    /// End time
    pub end_time: SystemTime,
    /// Maintenance type
    pub maintenance_type: MaintenanceType,
    /// Description
    pub description: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum MaintenanceType {
    Scheduled,
    Emergency,
    Calibration,
    Upgrade,
    Repair,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueueStatus {
    /// Number of jobs in queue
    pub jobs_in_queue: usize,
    /// Estimated wait time
    pub estimated_wait_time: Duration,
    /// Queue position for next job
    pub next_job_position: usize,
    /// Processing rate
    pub processing_rate: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HealthIndicators {
    /// System temperature
    pub system_temperature: f64,
    /// Error rate
    pub error_rate: f64,
    /// Performance metrics
    pub performance_metrics: PerformanceIndicators,
    /// Component health
    pub component_health: HashMap<String, ComponentHealth>,
    /// Warning flags
    pub warning_flags: Vec<WarningFlag>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PerformanceIndicators {
    /// Gate fidelity
    pub gate_fidelity: f64,
    /// Measurement fidelity
    pub measurement_fidelity: f64,
    /// Coherence times
    pub coherence_times: DecoherenceRates,
    /// Throughput
    pub throughput: f64,
    /// Latency
    pub latency: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComponentHealth {
    /// Component name
    pub component_name: String,
    /// Health score
    pub health_score: f64,
    /// Status
    pub status: ComponentStatus,
    /// Last checked
    pub last_checked: SystemTime,
    /// Issues
    pub issues: Vec<ComponentIssue>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ComponentStatus {
    Healthy,
    Warning,
    Critical,
    Failed,
    Unknown,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComponentIssue {
    /// Issue type
    pub issue_type: IssueType,
    /// Severity
    pub severity: IssueSeverity,
    /// Description
    pub description: String,
    /// First occurrence
    pub first_occurrence: SystemTime,
    /// Frequency
    pub frequency: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum IssueType {
    Hardware,
    Software,
    Calibration,
    Temperature,
    Network,
    Performance,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum IssueSeverity {
    Low,
    Medium,
    High,
    Critical,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WarningFlag {
    /// Warning type
    pub warning_type: WarningType,
    /// Message
    pub message: String,
    /// Timestamp
    pub timestamp: SystemTime,
    /// Acknowledged
    pub acknowledged: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum WarningType {
    HighTemperature,
    LowFidelity,
    HighErrorRate,
    QueueOverflow,
    MaintenanceRequired,
    CalibrationDrift,
    NetworkIssue,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DeviceMetrics {
    /// Timestamp
    pub timestamp: SystemTime,
    /// CPU utilization
    pub cpu_utilization: f64,
    /// Memory utilization
    pub memory_utilization: f64,
    /// Network utilization
    pub network_utilization: f64,
    /// Hardware metrics
    pub hardware_metrics: HardwareMetrics,
    /// Quantum metrics
    pub quantum_metrics: QuantumMetrics,
    /// Environmental metrics
    pub environmental_metrics: EnvironmentalMetrics,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct HardwareMetrics {
    /// Temperature readings
    pub temperatures: HashMap<String, f64>,
    /// Power consumption
    pub power_consumption: f64,
    /// Vibration levels
    pub vibration_levels: HashMap<String, f64>,
    /// Magnetic field measurements
    pub magnetic_fields: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QuantumMetrics {
    /// Current gate fidelities
    pub gate_fidelities: HashMap<String, f64>,
    /// Current measurement fidelities
    pub measurement_fidelities: HashMap<usize, f64>,
    /// Coherence time measurements
    pub coherence_measurements: HashMap<usize, DecoherenceRates>,
    /// Cross-talk measurements
    pub crosstalk_matrix: Option<Array2<f64>>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EnvironmentalMetrics {
    /// Ambient temperature
    pub ambient_temperature: f64,
    /// Humidity
    pub humidity: f64,
    /// Atmospheric pressure
    pub pressure: f64,
    /// Air quality index
    pub air_quality: Option<f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CalibrationData {
    /// Last calibration time
    pub last_calibration: SystemTime,
    /// Calibration results
    pub calibration_results: CalibrationResults,
    /// Calibration schedule
    pub calibration_schedule: CalibrationSchedule,
    /// Drift monitoring
    pub drift_monitoring: DriftMonitoring,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CalibrationResults {
    /// Gate calibrations
    pub gate_calibrations: HashMap<String, GateCalibration>,
    /// Measurement calibrations
    pub measurement_calibrations: HashMap<usize, MeasurementCalibration>,
    /// Crosstalk calibration
    pub crosstalk_calibration: Option<CrosstalkCalibration>,
    /// Overall calibration score
    pub overall_score: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct GateCalibration {
    /// Gate name
    pub gate_name: String,
    /// Target qubits
    pub target_qubits: Vec<usize>,
    /// Fidelity achieved
    pub fidelity: f64,
    /// Parameters
    pub parameters: HashMap<String, f64>,
    /// Calibration time
    pub calibration_time: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MeasurementCalibration {
    /// Qubit index
    pub qubit_index: usize,
    /// Measurement fidelity
    pub fidelity: f64,
    /// Readout parameters
    pub readout_parameters: ReadoutParameters,
    /// Calibration matrices
    pub calibration_matrices: Option<Array2<f64>>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ReadoutParameters {
    /// Measurement pulse parameters
    pub pulse_parameters: HashMap<String, f64>,
    /// Integration weights
    pub integration_weights: Option<Array1<f64>>,
    /// Discrimination threshold
    pub discrimination_threshold: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CrosstalkCalibration {
    /// Crosstalk matrix
    pub crosstalk_matrix: Array2<f64>,
    /// Mitigation strategy
    pub mitigation_strategy: CrosstalkMitigation,
    /// Effectiveness score
    pub effectiveness_score: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum CrosstalkMitigation {
    None,
    StaticCompensation,
    DynamicCompensation,
    PostProcessing,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CalibrationSchedule {
    /// Regular calibration interval
    pub regular_interval: Duration,
    /// Next scheduled calibration
    pub next_calibration: SystemTime,
    /// Trigger conditions
    pub trigger_conditions: Vec<CalibrationTrigger>,
    /// Maintenance integration
    pub maintenance_integration: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum CalibrationTrigger {
    TimeInterval(Duration),
    PerformanceDegradation(f64),
    EnvironmentalChange(f64),
    UserRequest,
    MaintenanceEvent,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DriftMonitoring {
    /// Drift tracking parameters
    pub drift_parameters: HashMap<String, DriftParameter>,
    /// Drift prediction model
    pub prediction_model: Option<DriftPredictionModel>,
    /// Alert thresholds
    pub drift_thresholds: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DriftParameter {
    /// Parameter name
    pub parameter_name: String,
    /// Current value
    pub current_value: f64,
    /// Baseline value
    pub baseline_value: f64,
    /// Drift rate
    pub drift_rate: f64,
    /// History
    pub value_history: VecDeque<(SystemTime, f64)>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DriftPredictionModel {
    /// Model type
    pub model_type: String,
    /// Model parameters
    pub parameters: HashMap<String, f64>,
    /// Prediction accuracy
    pub accuracy: f64,
    /// Last update
    pub last_update: SystemTime,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MonitorConfig {
    /// Monitoring frequency
    pub monitoring_frequency: Duration,
    /// Metrics to collect
    pub metrics_to_collect: Vec<MetricType>,
    /// Alert configuration
    pub alert_config: AlertConfig,
    /// Data retention
    pub data_retention: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum MetricType {
    Performance,
    Hardware,
    Quantum,
    Environmental,
    Network,
    All,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AlertConfig {
    /// Enable alerts
    pub alerts_enabled: bool,
    /// Alert channels
    pub alert_channels: Vec<AlertChannel>,
    /// Alert rules
    pub alert_rules: Vec<AlertRule>,
    /// Escalation policy
    pub escalation_policy: EscalationPolicy,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AlertChannel {
    Email(String),
    SMS(String),
    Webhook(String),
    Slack(String),
    Dashboard,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AlertRule {
    /// Rule name
    pub name: String,
    /// Condition
    pub condition: AlertCondition,
    /// Severity
    pub severity: IssueSeverity,
    /// Message template
    pub message_template: String,
    /// Cooldown period
    pub cooldown: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AlertCondition {
    Threshold {
        metric: String,
        operator: ComparisonOperator,
        value: f64,
    },
    RateOfChange {
        metric: String,
        rate_threshold: f64,
        window: Duration,
    },
    Composite {
        conditions: Vec<Self>,
        operator: LogicalOperator,
    },
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ComparisonOperator {
    GreaterThan,
    LessThan,
    Equal,
    NotEqual,
    GreaterThanOrEqual,
    LessThanOrEqual,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum LogicalOperator {
    And,
    Or,
    Not,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EscalationPolicy {
    /// Escalation levels
    pub levels: Vec<EscalationLevel>,
    /// Auto-acknowledge timeout
    pub auto_acknowledge_timeout: Duration,
    /// Maximum escalation level
    pub max_level: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct EscalationLevel {
    /// Level number
    pub level: usize,
    /// Wait time before escalation
    pub wait_time: Duration,
    /// Notification targets
    pub targets: Vec<AlertChannel>,
    /// Actions to take
    pub actions: Vec<EscalationAction>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum EscalationAction {
    SendNotification,
    CreateTicket,
    TriggerRunbook,
    AutoRemediate,
    ShutdownSystem,
}

/// Dynamic resource allocator
#[allow(dead_code)]
pub struct ResourceAllocator {
    /// Available resources
    available_resources: HashMap<String, ResourceInfo>,
    /// Resource allocation map
    allocation_map: HashMap<String, AllocationInfo>,
    /// Allocation strategy
    strategy: AllocationStrategy,
    /// Allocation history
    allocation_history: VecDeque<AllocationEvent>,
    /// Predictor for resource needs
    resource_predictor: ResourcePredictor,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceInfo {
    /// Resource ID
    pub resource_id: String,
    /// Resource type
    pub resource_type: ResourceType,
    /// Total capacity
    pub total_capacity: ResourceCapacity,
    /// Available capacity
    pub available_capacity: ResourceCapacity,
    /// Current utilization
    pub current_utilization: f64,
    /// Performance characteristics
    pub performance_characteristics: PerformanceCharacteristics,
    /// Constraints
    pub constraints: Vec<ResourceConstraint>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ResourceType {
    QuantumProcessor,
    ClassicalProcessor,
    Memory,
    Storage,
    Network,
    Hybrid,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceCapacity {
    /// Compute units
    pub compute_units: f64,
    /// Memory (in GB)
    pub memory_gb: f64,
    /// Storage (in GB)
    pub storage_gb: f64,
    /// Network bandwidth (in Mbps)
    pub network_mbps: f64,
    /// Custom metrics
    pub custom_metrics: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PerformanceCharacteristics {
    /// Processing speed
    pub processing_speed: f64,
    /// Latency
    pub latency: Duration,
    /// Reliability score
    pub reliability_score: f64,
    /// Energy efficiency
    pub energy_efficiency: f64,
    /// Scalability factor
    pub scalability_factor: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ResourceConstraint {
    MaxConcurrentJobs(usize),
    RequiredCertification(String),
    GeographicRestriction(String),
    TimeBased { start: SystemTime, end: SystemTime },
    DependsOn(String),
    ExclusiveAccess,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AllocationInfo {
    /// Job ID
    pub job_id: String,
    /// Allocated resources
    pub allocated_resources: Vec<String>,
    /// Allocation timestamp
    pub allocation_time: SystemTime,
    /// Expected completion time
    pub expected_completion: SystemTime,
    /// Priority
    pub priority: JobPriority,
    /// Resource usage
    pub resource_usage: ResourceUsage,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, Hash)]
pub enum JobPriority {
    Critical,
    High,
    Normal,
    Low,
    Background,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceUsage {
    /// CPU usage
    pub cpu_usage: f64,
    /// Memory usage
    pub memory_usage: f64,
    /// Network usage
    pub network_usage: f64,
    /// Custom usage metrics
    pub custom_usage: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AllocationEvent {
    /// Event timestamp
    pub timestamp: SystemTime,
    /// Event type
    pub event_type: AllocationEventType,
    /// Job ID
    pub job_id: String,
    /// Resources involved
    pub resources: Vec<String>,
    /// Metadata
    pub metadata: HashMap<String, String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AllocationEventType {
    Allocated,
    Deallocated,
    Modified,
    Failed,
    Preempted,
}

#[derive(Debug, Clone)]
pub struct ResourcePredictor {
    /// Historical usage patterns
    usage_patterns: HashMap<String, UsagePattern>,
    /// Prediction models
    prediction_models: HashMap<String, PredictionModel>,
    /// Forecast horizon
    forecast_horizon: Duration,
}

#[derive(Debug, Clone)]
pub struct UsagePattern {
    /// Pattern name
    pub pattern_name: String,
    /// Historical data points
    pub data_points: VecDeque<(SystemTime, f64)>,
    /// Pattern type
    pub pattern_type: PatternType,
    /// Seasonality
    pub seasonality: Option<Duration>,
    /// Trend
    pub trend: Trend,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PatternType {
    Linear,
    Exponential,
    Seasonal,
    Cyclical,
    Random,
    Hybrid,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum Trend {
    Increasing,
    Decreasing,
    Stable,
    Volatile,
}

#[derive(Debug, Clone)]
pub struct PredictionModel {
    /// Model name
    pub model_name: String,
    /// Model parameters
    pub parameters: HashMap<String, f64>,
    /// Prediction accuracy
    pub accuracy: f64,
    /// Last training time
    pub last_training: SystemTime,
}

/// Queue management system
pub struct QueueManager {
    /// Job queues
    job_queues: HashMap<JobPriority, VecDeque<QueuedJob>>,
    /// Queue statistics
    queue_stats: QueueStatistics,
    /// Scheduling algorithm
    scheduling_algorithm: SchedulingAlgorithm,
    /// Queue policies
    queue_policies: QueuePolicies,
    /// Load balancer
    load_balancer: LoadBalancer,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueuedJob {
    /// Job ID
    pub job_id: String,
    /// Job type
    pub job_type: JobType,
    /// Priority
    pub priority: JobPriority,
    /// Resource requirements
    pub resource_requirements: ResourceRequirements,
    /// Submission time
    pub submission_time: SystemTime,
    /// Deadline
    pub deadline: Option<SystemTime>,
    /// Dependencies
    pub dependencies: Vec<String>,
    /// Job metadata
    pub metadata: JobMetadata,
    /// Current status
    pub status: JobStatus,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum JobType {
    QuantumCircuit,
    Optimization,
    Simulation,
    Calibration,
    Maintenance,
    Hybrid,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceRequirements {
    /// Required qubits
    pub qubits_required: Option<usize>,
    /// Compute requirements
    pub compute_requirements: ComputeRequirements,
    /// Memory requirements
    pub memory_requirements: MemoryRequirements,
    /// Network requirements
    pub network_requirements: Option<NetworkRequirements>,
    /// Hardware constraints
    pub hardware_constraints: Vec<HardwareConstraint>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComputeRequirements {
    /// CPU cores
    pub cpu_cores: usize,
    /// GPU units
    pub gpu_units: Option<usize>,
    /// Quantum processing units
    pub qpu_units: Option<usize>,
    /// Estimated runtime
    pub estimated_runtime: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MemoryRequirements {
    /// RAM (in GB)
    pub ram_gb: f64,
    /// Storage (in GB)
    pub storage_gb: f64,
    /// Temporary storage (in GB)
    pub temp_storage_gb: Option<f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NetworkRequirements {
    /// Bandwidth (in Mbps)
    pub bandwidth_mbps: f64,
    /// Latency tolerance
    pub latency_tolerance: Duration,
    /// Location preferences
    pub location_preferences: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum HardwareConstraint {
    SpecificDevice(String),
    DeviceType(DeviceType),
    MinimumFidelity(f64),
    MaximumErrorRate(f64),
    Connectivity(ConnectivityRequirement),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ConnectivityRequirement {
    AllToAll,
    Linear,
    Grid,
    Custom(Vec<(usize, usize)>),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct JobMetadata {
    /// User ID
    pub user_id: String,
    /// Project ID
    pub project_id: String,
    /// Billing information
    pub billing_info: BillingInfo,
    /// Tags
    pub tags: Vec<String>,
    /// Experiment name
    pub experiment_name: Option<String>,
    /// Description
    pub description: Option<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct BillingInfo {
    /// Account ID
    pub account_id: String,
    /// Cost center
    pub cost_center: Option<String>,
    /// Budget limit
    pub budget_limit: Option<f64>,
    /// Cost estimate
    pub cost_estimate: Option<f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum JobStatus {
    Queued,
    Running,
    Completed,
    Failed,
    Cancelled,
    Paused,
    Preempted,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueueStatistics {
    /// Total jobs processed
    pub total_jobs_processed: usize,
    /// Average wait time
    pub average_wait_time: Duration,
    /// Queue lengths
    pub queue_lengths: HashMap<JobPriority, usize>,
    /// Throughput metrics
    pub throughput_metrics: ThroughputMetrics,
    /// Resource utilization
    pub resource_utilization: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ThroughputMetrics {
    /// Jobs per hour
    pub jobs_per_hour: f64,
    /// Success rate
    pub success_rate: f64,
    /// Average execution time
    pub average_execution_time: Duration,
    /// Resource efficiency
    pub resource_efficiency: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum SchedulingAlgorithm {
    FIFO,
    PriorityBased,
    ShortestJobFirst,
    EarliestDeadlineFirst,
    FairShare,
    Backfill,
    Adaptive,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueuePolicies {
    /// Maximum queue length
    pub max_queue_length: usize,
    /// Job timeout
    pub job_timeout: Duration,
    /// Preemption policy
    pub preemption_policy: PreemptionPolicy,
    /// Fairness policy
    pub fairness_policy: FairnessPolicy,
    /// Resource limits
    pub resource_limits: ResourceLimits,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum PreemptionPolicy {
    NoPreemption,
    PriorityBased,
    TimeSlicing,
    ResourceBased,
    Adaptive,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum FairnessPolicy {
    StrictFIFO,
    WeightedFair,
    ProportionalShare,
    LotteryScheduling,
    StrideScheduling,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ResourceLimits {
    /// Per-user limits
    pub per_user_limits: HashMap<String, ResourceCapacity>,
    /// Per-project limits
    pub per_project_limits: HashMap<String, ResourceCapacity>,
    /// System-wide limits
    pub system_limits: ResourceCapacity,
    /// Time-based limits
    pub time_based_limits: Vec<TimeBoundLimit>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct TimeBoundLimit {
    /// Time window
    pub time_window: (SystemTime, SystemTime),
    /// Resource limits during window
    pub limits: ResourceCapacity,
    /// Priority override
    pub priority_override: Option<JobPriority>,
}

#[derive(Debug, Clone)]
pub struct LoadBalancer {
    /// Load balancing strategy
    strategy: LoadBalancingStrategy,
    /// Server weights
    server_weights: HashMap<String, f64>,
    /// Health checks
    health_checks: HashMap<String, HealthCheck>,
    /// Load metrics
    load_metrics: HashMap<String, LoadMetrics>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum LoadBalancingStrategy {
    RoundRobin,
    WeightedRoundRobin,
    LeastConnections,
    LeastLoad,
    HashBased,
    GeographicProximity,
}

#[derive(Debug, Clone)]
pub struct HealthCheck {
    /// Check type
    pub check_type: HealthCheckType,
    /// Interval
    pub interval: Duration,
    /// Timeout
    pub timeout: Duration,
    /// Last check time
    pub last_check: SystemTime,
    /// Status
    pub status: HealthCheckStatus,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum HealthCheckType {
    Ping,
    HTTP,
    TCP,
    Custom(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum HealthCheckStatus {
    Healthy,
    Unhealthy,
    Unknown,
    Degraded,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LoadMetrics {
    /// Current load
    pub current_load: f64,
    /// Response time
    pub response_time: Duration,
    /// Error rate
    pub error_rate: f64,
    /// Throughput
    pub throughput: f64,
    /// Capacity utilization
    pub capacity_utilization: f64,
}

/// Real-time performance analytics engine
pub struct PerformanceAnalytics {
    /// Metrics collector
    metrics_collector: MetricsCollector,
    /// Analytics models
    analytics_models: HashMap<String, AnalyticsModel>,
    /// Real-time dashboard
    dashboard: RealtimeDashboard,
    /// Performance predictor
    performance_predictor: PerformancePredictor,
    /// Anomaly detector
    anomaly_detector: AnomalyDetector,
}

#[derive(Debug, Clone)]
pub struct MetricsCollector {
    /// Active metrics
    active_metrics: HashMap<String, MetricDefinition>,
    /// Collection intervals
    collection_intervals: HashMap<String, Duration>,
    /// Data storage
    data_storage: MetricsStorage,
    /// Aggregation rules
    aggregation_rules: Vec<AggregationRule>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct MetricDefinition {
    /// Metric name
    pub name: String,
    /// Metric type
    pub metric_type: MetricDataType,
    /// Units
    pub units: String,
    /// Description
    pub description: String,
    /// Collection method
    pub collection_method: CollectionMethod,
    /// Retention policy
    pub retention_policy: RetentionPolicy,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum MetricDataType {
    Counter,
    Gauge,
    Histogram,
    Summary,
    Timer,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum CollectionMethod {
    Push,
    Pull,
    Event,
    Streaming,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RetentionPolicy {
    /// Raw data retention
    pub raw_retention: Duration,
    /// Aggregated data retention
    pub aggregated_retention: Duration,
    /// Compression settings
    pub compression: CompressionSettings,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct CompressionSettings {
    /// Enable compression
    pub enabled: bool,
    /// Compression algorithm
    pub algorithm: CompressionAlgorithm,
    /// Compression ratio target
    pub ratio_target: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum CompressionAlgorithm {
    LZ4,
    Snappy,
    GZIP,
    ZSTD,
}

#[derive(Debug, Clone)]
pub struct MetricsStorage {
    /// Time series database
    time_series_db: HashMap<String, VecDeque<DataPoint>>,
    /// Indexes
    indexes: HashMap<String, Index>,
    /// Storage statistics
    storage_stats: StorageStatistics,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataPoint {
    /// Timestamp
    pub timestamp: SystemTime,
    /// Value
    pub value: f64,
    /// Tags
    pub tags: HashMap<String, String>,
    /// Metadata
    pub metadata: Option<HashMap<String, String>>,
}

#[derive(Debug, Clone)]
pub struct Index {
    /// Index type
    pub index_type: IndexType,
    /// Index data
    pub index_data: BTreeMap<String, Vec<usize>>,
    /// Last update
    pub last_update: SystemTime,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum IndexType {
    TagIndex,
    TimeIndex,
    ValueIndex,
    CompositeIndex,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct StorageStatistics {
    /// Total data points
    pub total_data_points: usize,
    /// Storage size (bytes)
    pub storage_size_bytes: usize,
    /// Compression ratio
    pub compression_ratio: f64,
    /// Query performance
    pub query_performance: QueryPerformanceStats,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueryPerformanceStats {
    /// Average query time
    pub average_query_time: Duration,
    /// Query cache hit rate
    pub cache_hit_rate: f64,
    /// Index efficiency
    pub index_efficiency: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AggregationRule {
    /// Rule name
    pub name: String,
    /// Source metrics
    pub source_metrics: Vec<String>,
    /// Aggregation function
    pub aggregation_function: AggregationFunction,
    /// Time window
    pub time_window: Duration,
    /// Output metric name
    pub output_metric: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AggregationFunction {
    Sum,
    Average,
    Min,
    Max,
    Count,
    Percentile(f64),
    StandardDeviation,
    Rate,
}

#[derive(Debug, Clone)]
pub struct AnalyticsModel {
    /// Model name
    pub model_name: String,
    /// Model type
    pub model_type: AnalyticsModelType,
    /// Model parameters
    pub parameters: HashMap<String, f64>,
    /// Training data
    pub training_data: VecDeque<DataPoint>,
    /// Model performance
    pub performance_metrics: ModelPerformanceMetrics,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AnalyticsModelType {
    LinearRegression,
    TimeSeriesForecasting,
    AnomalyDetection,
    Classification,
    Clustering,
    DeepLearning,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ModelPerformanceMetrics {
    /// Accuracy
    pub accuracy: f64,
    /// Precision
    pub precision: f64,
    /// Recall
    pub recall: f64,
    /// F1 score
    pub f1_score: f64,
    /// Mean squared error
    pub mse: f64,
    /// Mean absolute error
    pub mae: f64,
}

#[derive(Debug, Clone)]
pub struct RealtimeDashboard {
    /// Dashboard widgets
    widgets: Vec<DashboardWidget>,
    /// Update frequency
    update_frequency: Duration,
    /// Data sources
    data_sources: Vec<DataSource>,
    /// User preferences
    user_preferences: UserPreferences,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DashboardWidget {
    /// Widget ID
    pub widget_id: String,
    /// Widget type
    pub widget_type: WidgetType,
    /// Data query
    pub data_query: DataQuery,
    /// Display settings
    pub display_settings: DisplaySettings,
    /// Position and size
    pub layout: WidgetLayout,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum WidgetType {
    LineChart,
    BarChart,
    Gauge,
    Table,
    Heatmap,
    Scatter,
    Pie,
    Text,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataQuery {
    /// Metrics to query
    pub metrics: Vec<String>,
    /// Time range
    pub time_range: TimeRange,
    /// Filters
    pub filters: Vec<QueryFilter>,
    /// Aggregation
    pub aggregation: Option<AggregationFunction>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum TimeRange {
    Last(Duration),
    Range { start: SystemTime, end: SystemTime },
    RealTime,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueryFilter {
    /// Field name
    pub field: String,
    /// Operator
    pub operator: FilterOperator,
    /// Value
    pub value: String,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum FilterOperator {
    Equals,
    NotEquals,
    GreaterThan,
    LessThan,
    Contains,
    StartsWith,
    EndsWith,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DisplaySettings {
    /// Title
    pub title: String,
    /// Color scheme
    pub color_scheme: ColorScheme,
    /// Axes settings
    pub axes_settings: AxesSettings,
    /// Legend settings
    pub legend_settings: LegendSettings,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ColorScheme {
    Default,
    Dark,
    Light,
    Custom(Vec<String>),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AxesSettings {
    /// X-axis label
    pub x_label: Option<String>,
    /// Y-axis label
    pub y_label: Option<String>,
    /// X-axis scale
    pub x_scale: AxisScale,
    /// Y-axis scale
    pub y_scale: AxisScale,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AxisScale {
    Linear,
    Logarithmic,
    Auto,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LegendSettings {
    /// Show legend
    pub show: bool,
    /// Position
    pub position: LegendPosition,
    /// Orientation
    pub orientation: LegendOrientation,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum LegendPosition {
    Top,
    Bottom,
    Left,
    Right,
    TopLeft,
    TopRight,
    BottomLeft,
    BottomRight,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum LegendOrientation {
    Horizontal,
    Vertical,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct WidgetLayout {
    /// X position
    pub x: usize,
    /// Y position
    pub y: usize,
    /// Width
    pub width: usize,
    /// Height
    pub height: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct DataSource {
    /// Source ID
    pub source_id: String,
    /// Source type
    pub source_type: DataSourceType,
    /// Connection settings
    pub connection_settings: ConnectionSettings,
    /// Data format
    pub data_format: DataFormat,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum DataSourceType {
    Database,
    API,
    File,
    Stream,
    WebSocket,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ConnectionSettings {
    /// URL or endpoint
    pub endpoint: String,
    /// Authentication
    pub authentication: Option<AuthenticationInfo>,
    /// Connection timeout
    pub timeout: Duration,
    /// Retry policy
    pub retry_policy: RetryPolicy,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AuthenticationInfo {
    /// Auth type
    pub auth_type: AuthenticationType,
    /// Credentials
    pub credentials: HashMap<String, String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RetryPolicy {
    /// Maximum retries
    pub max_retries: usize,
    /// Retry delay
    pub retry_delay: Duration,
    /// Backoff strategy
    pub backoff_strategy: BackoffStrategy,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum BackoffStrategy {
    Fixed,
    Linear,
    Exponential,
    Random,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum DataFormat {
    JSON,
    CSV,
    XML,
    Binary,
    Custom(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct UserPreferences {
    /// Theme
    pub theme: String,
    /// Default time range
    pub default_time_range: TimeRange,
    /// Auto-refresh interval
    pub auto_refresh_interval: Duration,
    /// Notification settings
    pub notification_settings: NotificationSettings,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct NotificationSettings {
    /// Enable notifications
    pub enabled: bool,
    /// Notification channels
    pub channels: Vec<AlertChannel>,
    /// Notification preferences
    pub preferences: HashMap<String, bool>,
}

#[derive(Debug, Clone)]
pub struct PerformancePredictor {
    /// Prediction models
    prediction_models: HashMap<String, PredictionModel>,
    /// Feature extractors
    feature_extractors: Vec<FeatureExtractor>,
    /// Prediction cache
    prediction_cache: HashMap<String, PredictionResult>,
}

#[derive(Debug, Clone)]
pub struct FeatureExtractor {
    /// Extractor name
    pub name: String,
    /// Input metrics
    pub input_metrics: Vec<String>,
    /// Feature transformation
    pub transformation: FeatureTransformation,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum FeatureTransformation {
    Identity,
    Normalization,
    Scaling,
    Polynomial,
    Fourier,
    Wavelet,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PredictionResult {
    /// Predicted values
    pub predictions: Vec<f64>,
    /// Confidence intervals
    pub confidence_intervals: Vec<(f64, f64)>,
    /// Prediction timestamp
    pub timestamp: SystemTime,
    /// Model used
    pub model_name: String,
    /// Prediction horizon
    pub horizon: Duration,
}

#[derive(Debug, Clone)]
pub struct AnomalyDetector {
    /// Detection algorithms
    detection_algorithms: Vec<AnomalyDetectionAlgorithm>,
    /// Anomaly history
    anomaly_history: VecDeque<AnomalyEvent>,
    /// Detection thresholds
    detection_thresholds: HashMap<String, f64>,
    /// Model ensemble
    ensemble: AnomalyEnsemble,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AnomalyDetectionAlgorithm {
    StatisticalOutlier,
    IsolationForest,
    OneClassSVM,
    LSTM,
    Autoencoder,
    DBSCAN,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct AnomalyEvent {
    /// Event timestamp
    pub timestamp: SystemTime,
    /// Anomaly type
    pub anomaly_type: AnomalyType,
    /// Severity
    pub severity: IssueSeverity,
    /// Affected metrics
    pub affected_metrics: Vec<String>,
    /// Anomaly score
    pub anomaly_score: f64,
    /// Description
    pub description: String,
    /// Root cause analysis
    pub root_cause: Option<RootCauseAnalysis>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AnomalyType {
    PointAnomaly,
    ContextualAnomaly,
    CollectiveAnomaly,
    TrendAnomaly,
    SeasonalAnomaly,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RootCauseAnalysis {
    /// Probable causes
    pub probable_causes: Vec<ProbableCause>,
    /// Correlation analysis
    pub correlations: Vec<Correlation>,
    /// Recommendations
    pub recommendations: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ProbableCause {
    /// Cause description
    pub description: String,
    /// Probability
    pub probability: f64,
    /// Supporting evidence
    pub evidence: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct Correlation {
    /// Correlated metric
    pub metric: String,
    /// Correlation coefficient
    pub coefficient: f64,
    /// Time lag
    pub time_lag: Duration,
}

#[derive(Debug, Clone)]
pub struct AnomalyEnsemble {
    /// Base detectors
    base_detectors: Vec<AnomalyDetectionAlgorithm>,
    /// Ensemble method
    ensemble_method: EnsembleMethod,
    /// Voting weights
    voting_weights: HashMap<String, f64>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum EnsembleMethod {
    MajorityVoting,
    WeightedVoting,
    Stacking,
    Averaging,
}

/// Automated fault detection and recovery system
pub struct FaultDetectionSystem {
    /// Fault detectors
    fault_detectors: Vec<FaultDetector>,
    /// Recovery procedures
    recovery_procedures: HashMap<FaultType, RecoveryProcedure>,
    /// Fault history
    fault_history: VecDeque<FaultEvent>,
    /// Recovery statistics
    recovery_stats: RecoveryStatistics,
}

#[derive(Debug, Clone)]
pub struct FaultDetector {
    /// Detector name
    pub name: String,
    /// Detection method
    pub detection_method: FaultDetectionMethod,
    /// Monitoring targets
    pub targets: Vec<String>,
    /// Detection threshold
    pub threshold: f64,
    /// Check interval
    pub check_interval: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum FaultDetectionMethod {
    ThresholdBased,
    StatisticalAnalysis,
    MachineLearning,
    PatternMatching,
    CorrelationAnalysis,
    RuleEngine,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct FaultEvent {
    /// Event timestamp
    pub timestamp: SystemTime,
    /// Fault type
    pub fault_type: FaultType,
    /// Severity
    pub severity: IssueSeverity,
    /// Affected components
    pub affected_components: Vec<String>,
    /// Detection method
    pub detection_method: String,
    /// Fault description
    pub description: String,
    /// Recovery action taken
    pub recovery_action: Option<String>,
    /// Recovery success
    pub recovery_success: Option<bool>,
}

#[derive(Debug, Clone, Serialize, Deserialize, PartialEq, Eq, Hash)]
pub enum FaultType {
    HardwareFailure,
    SoftwareError,
    NetworkIssue,
    PerformanceDegradation,
    CalibrationDrift,
    TemperatureAnomaly,
    PowerIssue,
    CommunicationFailure,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecoveryProcedure {
    /// Procedure name
    pub name: String,
    /// Recovery steps
    pub steps: Vec<RecoveryStep>,
    /// Success criteria
    pub success_criteria: Vec<SuccessCriterion>,
    /// Rollback procedure
    pub rollback_procedure: Option<Vec<RecoveryStep>>,
    /// Maximum attempts
    pub max_attempts: usize,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecoveryStep {
    /// Step name
    pub name: String,
    /// Step type
    pub step_type: RecoveryStepType,
    /// Parameters
    pub parameters: HashMap<String, String>,
    /// Timeout
    pub timeout: Duration,
    /// Retry on failure
    pub retry_on_failure: bool,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum RecoveryStepType {
    RestartService,
    RecalibrateDevice,
    SwitchToBackup,
    ClearCache,
    ResetConnection,
    NotifyOperator,
    RunDiagnostics,
    Custom(String),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SuccessCriterion {
    /// Metric to check
    pub metric: String,
    /// Expected value or range
    pub expected_value: ExpectedValue,
    /// Check timeout
    pub timeout: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum ExpectedValue {
    Exact(f64),
    Range(f64, f64),
    LessThan(f64),
    GreaterThan(f64),
    Boolean(bool),
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RecoveryStatistics {
    /// Total faults detected
    pub total_faults: usize,
    /// Successful recoveries
    pub successful_recoveries: usize,
    /// Failed recoveries
    pub failed_recoveries: usize,
    /// Average recovery time
    pub average_recovery_time: Duration,
    /// Recovery success rate by fault type
    pub success_rate_by_type: HashMap<FaultType, f64>,
}

/// System state tracking
#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemState {
    /// Overall system status
    pub overall_status: SystemStatus,
    /// Component states
    pub component_states: HashMap<String, ComponentState>,
    /// Active alerts
    pub active_alerts: Vec<ActiveAlert>,
    /// Performance summary
    pub performance_summary: PerformanceSummary,
    /// Resource utilization
    pub resource_utilization: SystemResourceUtilization,
    /// Last update timestamp
    pub last_update: SystemTime,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum SystemStatus {
    Healthy,
    Warning,
    Critical,
    Maintenance,
    Degraded,
    Offline,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ComponentState {
    /// Component name
    pub component_name: String,
    /// Status
    pub status: ComponentStatus,
    /// Last heartbeat
    pub last_heartbeat: SystemTime,
    /// Metrics
    pub metrics: HashMap<String, f64>,
    /// Alerts
    pub alerts: Vec<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ActiveAlert {
    /// Alert ID
    pub alert_id: String,
    /// Alert type
    pub alert_type: AlertType,
    /// Severity
    pub severity: IssueSeverity,
    /// Message
    pub message: String,
    /// Timestamp
    pub timestamp: SystemTime,
    /// Acknowledged
    pub acknowledged: bool,
    /// Acknowledger
    pub acknowledged_by: Option<String>,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub enum AlertType {
    System,
    Hardware,
    Performance,
    Security,
    User,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct PerformanceSummary {
    /// Overall performance score
    pub performance_score: f64,
    /// Throughput
    pub throughput: f64,
    /// Latency percentiles
    pub latency_percentiles: HashMap<String, Duration>,
    /// Error rates
    pub error_rates: HashMap<String, f64>,
    /// Availability percentage
    pub availability: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemResourceUtilization {
    /// CPU utilization
    pub cpu_utilization: f64,
    /// Memory utilization
    pub memory_utilization: f64,
    /// Storage utilization
    pub storage_utilization: f64,
    /// Network utilization
    pub network_utilization: f64,
    /// Quantum resource utilization
    pub quantum_utilization: Option<f64>,
}

impl RealtimeQuantumManager {
    /// Create new real-time quantum manager
    pub fn new(config: RealtimeConfig) -> Self {
        Self {
            hardware_monitors: HashMap::new(),
            resource_allocator: Arc::new(RwLock::new(ResourceAllocator::new(&config))),
            queue_manager: Arc::new(Mutex::new(QueueManager::new(&config))),
            performance_analytics: Arc::new(RwLock::new(PerformanceAnalytics::new(&config))),
            fault_detector: Arc::new(Mutex::new(FaultDetectionSystem::new())),
            config,
            system_state: Arc::new(RwLock::new(SystemState::new())),
        }
    }

    /// Start real-time monitoring
    pub fn start_monitoring(&mut self) -> Result<(), String> {
        // Start monitoring threads for each registered device
        for (device_id, monitor) in &self.hardware_monitors {
            self.start_device_monitoring(device_id.clone(), monitor.clone())?;
        }

        // Start analytics thread
        self.start_analytics_monitoring()?;

        // Start fault detection thread
        self.start_fault_detection()?;

        Ok(())
    }

    /// Register a new quantum device for monitoring
    pub fn register_device(&mut self, device_info: DeviceInfo) -> Result<(), String> {
        let monitor = Arc::new(Mutex::new(HardwareMonitor::new(device_info.clone())));
        self.hardware_monitors
            .insert(device_info.device_id, monitor);
        Ok(())
    }

    /// Submit a job to the queue
    pub fn submit_job(&self, job: QueuedJob) -> Result<String, String> {
        let mut queue_manager = self.queue_manager.lock().map_err(|e| e.to_string())?;
        queue_manager.submit_job(job)
    }

    /// Get current system state
    pub fn get_system_state(&self) -> Result<SystemState, String> {
        let state = self.system_state.read().map_err(|e| e.to_string())?;
        Ok(state.clone())
    }

    /// Get real-time metrics
    pub fn get_realtime_metrics(&self) -> Result<RealtimeMetrics, String> {
        let analytics = self
            .performance_analytics
            .read()
            .map_err(|e| e.to_string())?;
        analytics.get_current_metrics()
    }

    /// Allocate resources for a job
    pub fn allocate_resources(
        &self,
        job_id: &str,
        requirements: ResourceRequirements,
    ) -> Result<Vec<String>, String> {
        let mut allocator = self.resource_allocator.write().map_err(|e| e.to_string())?;
        allocator.allocate_resources(job_id, requirements)
    }

    /// Start device monitoring in a separate thread
    fn start_device_monitoring(
        &self,
        device_id: String,
        monitor: Arc<Mutex<HardwareMonitor>>,
    ) -> Result<(), String> {
        let interval = self.config.monitoring_interval;
        let system_state = self.system_state.clone();

        thread::spawn(move || {
            loop {
                if let Ok(mut monitor_guard) = monitor.lock() {
                    if let Err(e) = monitor_guard.update_metrics() {
                        eprintln!("Error updating metrics for device {device_id}: {e}");
                    }

                    // Update system state
                    if let Ok(mut state) = system_state.write() {
                        state.update_component_state(
                            &device_id,
                            &monitor_guard.get_current_status(),
                        );
                    }
                }

                thread::sleep(interval);
            }
        });

        Ok(())
    }

    /// Start analytics monitoring thread
    fn start_analytics_monitoring(&self) -> Result<(), String> {
        let analytics = self.performance_analytics.clone();
        let interval = self.config.analytics_config.aggregation_interval;

        thread::spawn(move || loop {
            if let Ok(mut analytics_guard) = analytics.write() {
                if let Err(e) = analytics_guard.update_analytics() {
                    eprintln!("Error updating analytics: {e}");
                }
            }

            thread::sleep(interval);
        });

        Ok(())
    }

    /// Start fault detection thread
    fn start_fault_detection(&self) -> Result<(), String> {
        let fault_detector = self.fault_detector.clone();
        let system_state = self.system_state.clone();
        let config = self.config.clone();

        thread::spawn(move || {
            loop {
                if let Ok(mut detector) = fault_detector.lock() {
                    if let Ok(state) = system_state.read() {
                        if let Err(e) = detector.check_for_faults(&state, &config) {
                            eprintln!("Error in fault detection: {e}");
                        }
                    }
                }

                thread::sleep(Duration::from_secs(1)); // Check every second
            }
        });

        Ok(())
    }
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct RealtimeMetrics {
    /// Current timestamp
    pub timestamp: SystemTime,
    /// System metrics
    pub system_metrics: SystemMetrics,
    /// Device metrics
    pub device_metrics: HashMap<String, DeviceMetrics>,
    /// Queue metrics
    pub queue_metrics: QueueMetrics,
    /// Performance metrics
    pub performance_metrics: SystemPerformanceMetrics,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemMetrics {
    /// Overall health score
    pub health_score: f64,
    /// Total devices
    pub total_devices: usize,
    /// Active devices
    pub active_devices: usize,
    /// Total jobs processed
    pub total_jobs_processed: usize,
    /// Current load
    pub current_load: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct QueueMetrics {
    /// Total queued jobs
    pub total_queued_jobs: usize,
    /// Jobs by priority
    pub jobs_by_priority: HashMap<JobPriority, usize>,
    /// Average wait time
    pub average_wait_time: Duration,
    /// Queue throughput
    pub throughput: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct SystemPerformanceMetrics {
    /// Overall performance score
    pub performance_score: f64,
    /// Latency statistics
    pub latency_stats: LatencyStats,
    /// Throughput statistics
    pub throughput_stats: ThroughputStats,
    /// Error statistics
    pub error_stats: ErrorStats,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct LatencyStats {
    /// Average latency
    pub average: Duration,
    /// Median latency
    pub median: Duration,
    /// 95th percentile
    pub p95: Duration,
    /// 99th percentile
    pub p99: Duration,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ThroughputStats {
    /// Requests per second
    pub requests_per_second: f64,
    /// Jobs per hour
    pub jobs_per_hour: f64,
    /// Data processed per second
    pub data_per_second: f64,
}

#[derive(Debug, Clone, Serialize, Deserialize)]
pub struct ErrorStats {
    /// Total errors
    pub total_errors: usize,
    /// Error rate
    pub error_rate: f64,
    /// Errors by type
    pub errors_by_type: HashMap<String, usize>,
}

// Implementation stubs for complex components
impl HardwareMonitor {
    pub fn new(device_info: DeviceInfo) -> Self {
        Self {
            device_info,
            current_status: DeviceStatus::default(),
            metrics_history: VecDeque::new(),
            calibration_data: CalibrationData::default(),
            monitor_config: MonitorConfig::default(),
            last_update: Instant::now(),
        }
    }

    pub fn update_metrics(&mut self) -> Result<(), String> {
        // Simulate metric collection
        let metrics = DeviceMetrics {
            timestamp: SystemTime::now(),
            cpu_utilization: 0.5,
            memory_utilization: 0.6,
            network_utilization: 0.3,
            hardware_metrics: HardwareMetrics {
                temperatures: {
                    let mut temps = HashMap::new();
                    temps.insert("cpu".to_string(), 45.0);
                    temps.insert("quantum_chip".to_string(), 0.01);
                    temps
                },
                power_consumption: 150.0,
                vibration_levels: HashMap::new(),
                magnetic_fields: HashMap::new(),
            },
            quantum_metrics: QuantumMetrics {
                gate_fidelities: HashMap::new(),
                measurement_fidelities: HashMap::new(),
                coherence_measurements: HashMap::new(),
                crosstalk_matrix: None,
            },
            environmental_metrics: EnvironmentalMetrics {
                ambient_temperature: 22.0,
                humidity: 45.0,
                pressure: 1013.25,
                air_quality: None,
            },
        };

        self.metrics_history.push_back(metrics);
        if self.metrics_history.len() > 1000 {
            self.metrics_history.pop_front();
        }

        self.last_update = Instant::now();
        Ok(())
    }

    pub fn get_current_status(&self) -> DeviceStatus {
        self.current_status.clone()
    }
}

impl ResourceAllocator {
    pub fn new(config: &RealtimeConfig) -> Self {
        Self {
            available_resources: HashMap::new(),
            allocation_map: HashMap::new(),
            strategy: config.allocation_strategy.clone(),
            allocation_history: VecDeque::new(),
            resource_predictor: ResourcePredictor::new(),
        }
    }

    pub fn allocate_resources(
        &mut self,
        job_id: &str,
        _requirements: ResourceRequirements,
    ) -> Result<Vec<String>, String> {
        // Simplified resource allocation
        let allocated_resources = vec!["resource_1".to_string(), "resource_2".to_string()];

        let allocation = AllocationInfo {
            job_id: job_id.to_string(),
            allocated_resources: allocated_resources.clone(),
            allocation_time: SystemTime::now(),
            expected_completion: SystemTime::now() + Duration::from_secs(3600),
            priority: JobPriority::Normal,
            resource_usage: ResourceUsage {
                cpu_usage: 0.5,
                memory_usage: 0.3,
                network_usage: 0.1,
                custom_usage: HashMap::new(),
            },
        };

        self.allocation_map.insert(job_id.to_string(), allocation);

        Ok(allocated_resources)
    }
}

impl QueueManager {
    pub fn new(_config: &RealtimeConfig) -> Self {
        let mut job_queues = HashMap::new();
        job_queues.insert(JobPriority::Critical, VecDeque::new());
        job_queues.insert(JobPriority::High, VecDeque::new());
        job_queues.insert(JobPriority::Normal, VecDeque::new());
        job_queues.insert(JobPriority::Low, VecDeque::new());
        job_queues.insert(JobPriority::Background, VecDeque::new());

        Self {
            job_queues,
            queue_stats: QueueStatistics::default(),
            scheduling_algorithm: SchedulingAlgorithm::PriorityBased,
            queue_policies: QueuePolicies::default(),
            load_balancer: LoadBalancer::new(),
        }
    }

    pub fn submit_job(&mut self, job: QueuedJob) -> Result<String, String> {
        let job_id = job.job_id.clone();
        let priority = job.priority.clone();

        if let Some(queue) = self.job_queues.get_mut(&priority) {
            queue.push_back(job);
            self.queue_stats.total_jobs_processed += 1;
            Ok(job_id)
        } else {
            Err("Invalid job priority".to_string())
        }
    }
}

impl PerformanceAnalytics {
    pub fn new(_config: &RealtimeConfig) -> Self {
        Self {
            metrics_collector: MetricsCollector::new(),
            analytics_models: HashMap::new(),
            dashboard: RealtimeDashboard::new(),
            performance_predictor: PerformancePredictor::new(),
            anomaly_detector: AnomalyDetector::new(),
        }
    }

    pub const fn update_analytics(&mut self) -> Result<(), String> {
        // Update analytics models and predictions
        Ok(())
    }

    pub fn get_current_metrics(&self) -> Result<RealtimeMetrics, String> {
        Ok(RealtimeMetrics {
            timestamp: SystemTime::now(),
            system_metrics: SystemMetrics {
                health_score: 0.85,
                total_devices: 5,
                active_devices: 4,
                total_jobs_processed: 1000,
                current_load: 0.6,
            },
            device_metrics: HashMap::new(),
            queue_metrics: QueueMetrics {
                total_queued_jobs: 25,
                jobs_by_priority: {
                    let mut map = HashMap::new();
                    map.insert(JobPriority::High, 5);
                    map.insert(JobPriority::Normal, 15);
                    map.insert(JobPriority::Low, 5);
                    map
                },
                average_wait_time: Duration::from_secs(300),
                throughput: 10.0,
            },
            performance_metrics: SystemPerformanceMetrics {
                performance_score: 0.88,
                latency_stats: LatencyStats {
                    average: Duration::from_millis(250),
                    median: Duration::from_millis(200),
                    p95: Duration::from_millis(500),
                    p99: Duration::from_millis(1000),
                },
                throughput_stats: ThroughputStats {
                    requests_per_second: 100.0,
                    jobs_per_hour: 50.0,
                    data_per_second: 1024.0,
                },
                error_stats: ErrorStats {
                    total_errors: 10,
                    error_rate: 0.01,
                    errors_by_type: HashMap::new(),
                },
            },
        })
    }
}

impl Default for FaultDetectionSystem {
    fn default() -> Self {
        Self::new()
    }
}

impl FaultDetectionSystem {
    pub fn new() -> Self {
        Self {
            fault_detectors: vec![],
            recovery_procedures: HashMap::new(),
            fault_history: VecDeque::new(),
            recovery_stats: RecoveryStatistics::default(),
        }
    }

    pub fn check_for_faults(
        &mut self,
        system_state: &SystemState,
        config: &RealtimeConfig,
    ) -> Result<(), String> {
        // Check for various fault conditions
        self.check_performance_degradation(system_state, config)?;
        self.check_resource_exhaustion(system_state, config)?;
        self.check_hardware_issues(system_state, config)?;
        Ok(())
    }

    fn check_performance_degradation(
        &mut self,
        system_state: &SystemState,
        _config: &RealtimeConfig,
    ) -> Result<(), String> {
        if system_state.performance_summary.performance_score < 0.5 {
            self.detect_fault(
                FaultType::PerformanceDegradation,
                IssueSeverity::High,
                "Performance score below threshold".to_string(),
            )?;
        }
        Ok(())
    }

    fn check_resource_exhaustion(
        &mut self,
        system_state: &SystemState,
        config: &RealtimeConfig,
    ) -> Result<(), String> {
        if system_state.resource_utilization.cpu_utilization > config.alert_thresholds.cpu_threshold
        {
            self.detect_fault(
                FaultType::PerformanceDegradation,
                IssueSeverity::Medium,
                "High CPU utilization".to_string(),
            )?;
        }
        Ok(())
    }

    const fn check_hardware_issues(
        &self,
        _system_state: &SystemState,
        _config: &RealtimeConfig,
    ) -> Result<(), String> {
        // Check for hardware-related issues
        Ok(())
    }

    fn detect_fault(
        &mut self,
        fault_type: FaultType,
        severity: IssueSeverity,
        description: String,
    ) -> Result<(), String> {
        let fault_event = FaultEvent {
            timestamp: SystemTime::now(),
            fault_type: fault_type.clone(),
            severity,
            affected_components: vec!["system".to_string()],
            detection_method: "threshold_based".to_string(),
            description,
            recovery_action: None,
            recovery_success: None,
        };

        self.fault_history.push_back(fault_event);
        if self.fault_history.len() > 10000 {
            self.fault_history.pop_front();
        }

        // Attempt automatic recovery if enabled
        self.attempt_recovery(&fault_type)?;

        Ok(())
    }

    fn attempt_recovery(&mut self, fault_type: &FaultType) -> Result<(), String> {
        if let Some(_procedure) = self.recovery_procedures.get(fault_type) {
            // Execute recovery procedure
            println!("Executing recovery procedure for fault: {fault_type:?}");
            // Implementation would execute actual recovery steps
            self.recovery_stats.successful_recoveries += 1;
        }
        Ok(())
    }
}

impl Default for SystemState {
    fn default() -> Self {
        Self::new()
    }
}

impl SystemState {
    pub fn new() -> Self {
        Self {
            overall_status: SystemStatus::Healthy,
            component_states: HashMap::new(),
            active_alerts: vec![],
            performance_summary: PerformanceSummary {
                performance_score: 0.9,
                throughput: 100.0,
                latency_percentiles: HashMap::new(),
                error_rates: HashMap::new(),
                availability: 0.99,
            },
            resource_utilization: SystemResourceUtilization {
                cpu_utilization: 0.5,
                memory_utilization: 0.6,
                storage_utilization: 0.4,
                network_utilization: 0.3,
                quantum_utilization: Some(0.7),
            },
            last_update: SystemTime::now(),
        }
    }

    pub fn update_component_state(&mut self, component_id: &str, _status: &DeviceStatus) {
        let component_state = ComponentState {
            component_name: component_id.to_string(),
            status: ComponentStatus::Healthy, // Simplified
            last_heartbeat: SystemTime::now(),
            metrics: HashMap::new(),
            alerts: vec![],
        };

        self.component_states
            .insert(component_id.to_string(), component_state);
        self.last_update = SystemTime::now();
    }
}

// Default implementations for various structs
impl Default for DeviceStatus {
    fn default() -> Self {
        Self {
            overall_status: OverallStatus::Online,
            availability: Availability {
                available: true,
                expected_available_time: None,
                availability_percentage: 0.99,
                planned_downtime: vec![],
            },
            current_load: 0.5,
            queue_status: QueueStatus {
                jobs_in_queue: 0,
                estimated_wait_time: Duration::ZERO,
                next_job_position: 0,
                processing_rate: 1.0,
            },
            health_indicators: HealthIndicators {
                system_temperature: 22.0,
                error_rate: 0.001,
                performance_metrics: PerformanceIndicators {
                    gate_fidelity: 0.99,
                    measurement_fidelity: 0.95,
                    coherence_times: DecoherenceRates {
                        t1_time: Duration::from_micros(100),
                        t2_time: Duration::from_micros(50),
                        t2_star_time: Duration::from_micros(30),
                    },
                    throughput: 1000.0,
                    latency: Duration::from_millis(10),
                },
                component_health: HashMap::new(),
                warning_flags: vec![],
            },
            last_maintenance: SystemTime::now(),
            next_maintenance: None,
        }
    }
}

impl Default for CalibrationData {
    fn default() -> Self {
        Self {
            last_calibration: SystemTime::now(),
            calibration_results: CalibrationResults {
                gate_calibrations: HashMap::new(),
                measurement_calibrations: HashMap::new(),
                crosstalk_calibration: None,
                overall_score: 0.95,
            },
            calibration_schedule: CalibrationSchedule {
                regular_interval: Duration::from_secs(24 * 3600), // Daily
                next_calibration: SystemTime::now() + Duration::from_secs(24 * 3600),
                trigger_conditions: vec![],
                maintenance_integration: true,
            },
            drift_monitoring: DriftMonitoring {
                drift_parameters: HashMap::new(),
                prediction_model: None,
                drift_thresholds: HashMap::new(),
            },
        }
    }
}

impl Default for MonitorConfig {
    fn default() -> Self {
        Self {
            monitoring_frequency: Duration::from_secs(60),
            metrics_to_collect: vec![MetricType::All],
            alert_config: AlertConfig {
                alerts_enabled: true,
                alert_channels: vec![AlertChannel::Dashboard],
                alert_rules: vec![],
                escalation_policy: EscalationPolicy {
                    levels: vec![],
                    auto_acknowledge_timeout: Duration::from_secs(300),
                    max_level: 3,
                },
            },
            data_retention: Duration::from_secs(7 * 24 * 3600), // 7 days
        }
    }
}

impl Default for QueueStatistics {
    fn default() -> Self {
        Self {
            total_jobs_processed: 0,
            average_wait_time: Duration::ZERO,
            queue_lengths: HashMap::new(),
            throughput_metrics: ThroughputMetrics {
                jobs_per_hour: 0.0,
                success_rate: 0.99,
                average_execution_time: Duration::from_secs(300),
                resource_efficiency: 0.85,
            },
            resource_utilization: HashMap::new(),
        }
    }
}

impl Default for QueuePolicies {
    fn default() -> Self {
        Self {
            max_queue_length: 1000,
            job_timeout: Duration::from_secs(3600),
            preemption_policy: PreemptionPolicy::PriorityBased,
            fairness_policy: FairnessPolicy::WeightedFair,
            resource_limits: ResourceLimits {
                per_user_limits: HashMap::new(),
                per_project_limits: HashMap::new(),
                system_limits: ResourceCapacity {
                    compute_units: 1000.0,
                    memory_gb: 1024.0,
                    storage_gb: 10000.0,
                    network_mbps: 10000.0,
                    custom_metrics: HashMap::new(),
                },
                time_based_limits: vec![],
            },
        }
    }
}

impl Default for RecoveryStatistics {
    fn default() -> Self {
        Self {
            total_faults: 0,
            successful_recoveries: 0,
            failed_recoveries: 0,
            average_recovery_time: Duration::ZERO,
            success_rate_by_type: HashMap::new(),
        }
    }
}

impl Default for ResourcePredictor {
    fn default() -> Self {
        Self::new()
    }
}

impl ResourcePredictor {
    pub fn new() -> Self {
        Self {
            usage_patterns: HashMap::new(),
            prediction_models: HashMap::new(),
            forecast_horizon: Duration::from_secs(3600),
        }
    }
}

impl Default for LoadBalancer {
    fn default() -> Self {
        Self::new()
    }
}

impl LoadBalancer {
    pub fn new() -> Self {
        Self {
            strategy: LoadBalancingStrategy::RoundRobin,
            server_weights: HashMap::new(),
            health_checks: HashMap::new(),
            load_metrics: HashMap::new(),
        }
    }
}

impl Default for MetricsCollector {
    fn default() -> Self {
        Self::new()
    }
}

impl MetricsCollector {
    pub fn new() -> Self {
        Self {
            active_metrics: HashMap::new(),
            collection_intervals: HashMap::new(),
            data_storage: MetricsStorage {
                time_series_db: HashMap::new(),
                indexes: HashMap::new(),
                storage_stats: StorageStatistics {
                    total_data_points: 0,
                    storage_size_bytes: 0,
                    compression_ratio: 1.0,
                    query_performance: QueryPerformanceStats {
                        average_query_time: Duration::from_millis(10),
                        cache_hit_rate: 0.8,
                        index_efficiency: 0.9,
                    },
                },
            },
            aggregation_rules: vec![],
        }
    }
}

impl Default for RealtimeDashboard {
    fn default() -> Self {
        Self::new()
    }
}

impl RealtimeDashboard {
    pub fn new() -> Self {
        Self {
            widgets: vec![],
            update_frequency: Duration::from_secs(5),
            data_sources: vec![],
            user_preferences: UserPreferences {
                theme: "dark".to_string(),
                default_time_range: TimeRange::Last(Duration::from_secs(3600)),
                auto_refresh_interval: Duration::from_secs(30),
                notification_settings: NotificationSettings {
                    enabled: true,
                    channels: vec![AlertChannel::Dashboard],
                    preferences: HashMap::new(),
                },
            },
        }
    }
}

impl Default for PerformancePredictor {
    fn default() -> Self {
        Self::new()
    }
}

impl PerformancePredictor {
    pub fn new() -> Self {
        Self {
            prediction_models: HashMap::new(),
            feature_extractors: vec![],
            prediction_cache: HashMap::new(),
        }
    }
}

impl Default for AnomalyDetector {
    fn default() -> Self {
        Self::new()
    }
}

impl AnomalyDetector {
    pub fn new() -> Self {
        Self {
            detection_algorithms: vec![
                AnomalyDetectionAlgorithm::StatisticalOutlier,
                AnomalyDetectionAlgorithm::IsolationForest,
            ],
            anomaly_history: VecDeque::new(),
            detection_thresholds: HashMap::new(),
            ensemble: AnomalyEnsemble {
                base_detectors: vec![],
                ensemble_method: EnsembleMethod::WeightedVoting,
                voting_weights: HashMap::new(),
            },
        }
    }
}