quantrs2-anneal 0.1.3

//! Metrics collector and adaptive compiler implementations

use super::types::*;
use crate::applications::ApplicationResult;
use crate::ising::IsingModel;
use std::collections::HashMap;
use std::time::Duration;

/// Metrics collection system
pub struct MetricsCollector {
    /// Collection configuration
    pub config: MetricsCollectionConfig,
    /// Collected metrics
    pub metrics: HashMap<String, MetricTimeSeries>,
    /// Real-time aggregates
    pub aggregates: HashMap<String, MetricAggregate>,
    /// Collection statistics
    pub collection_stats: CollectionStatistics,
}

impl MetricsCollector {
    pub(crate) fn new() -> Self {
        Self {
            config: MetricsCollectionConfig::default(),
            metrics: HashMap::new(),
            aggregates: HashMap::new(),
            collection_stats: CollectionStatistics::default(),
        }
    }
}

impl Default for MetricsCollectionConfig {
    fn default() -> Self {
        let mut enabled_metrics = std::collections::HashSet::new();
        enabled_metrics.insert(MetricType::ErrorRate);
        enabled_metrics.insert(MetricType::Temperature);
        enabled_metrics.insert(MetricType::CoherenceTime);
        enabled_metrics.insert(MetricType::NoiseLevel);
        enabled_metrics.insert(MetricType::SuccessRate);

        Self {
            enabled_metrics,
            collection_frequency: Duration::from_millis(100),
            retention_period: Duration::from_secs(3600),
            aggregation_window: Duration::from_secs(60),
        }
    }
}

impl Default for CollectionStatistics {
    fn default() -> Self {
        Self {
            total_points: 0,
            success_rate: 1.0,
            avg_latency: Duration::from_millis(0),
            last_collection: std::time::Instant::now(),
        }
    }
}

/// Adaptive compiler for real-time optimization
pub struct AdaptiveCompiler {
    /// Compiler configuration
    pub config: AdaptiveCompilerConfig,
    /// Compilation cache
    pub compilation_cache: HashMap<String, CachedCompilation>,
    /// Adaptation strategies
    pub strategies: Vec<AdaptationStrategy>,
    /// Performance history
    pub performance_history: std::collections::VecDeque<CompilationPerformance>,
    /// Active adaptations
    pub active_adaptations: HashMap<String, ActiveAdaptation>,
}

impl AdaptiveCompiler {
    pub(crate) fn new() -> Self {
        Self {
            config: AdaptiveCompilerConfig::default(),
            compilation_cache: HashMap::new(),
            strategies: vec![],
            performance_history: std::collections::VecDeque::new(),
            active_adaptations: HashMap::new(),
        }
    }

    pub(crate) fn cache_compilation(
        &self,
        problem: &IsingModel,
        _parameters: &CompilationParameters,
    ) -> ApplicationResult<()> {
        // Implementation would cache the compilation
        println!(
            "Caching compilation for problem with {} qubits",
            problem.num_qubits
        );
        Ok(())
    }
}

impl Default for AdaptiveCompilerConfig {
    fn default() -> Self {
        Self {
            enable_realtime_recompilation: true,
            adaptation_threshold: 0.1,
            max_adaptations_per_hour: 10,
            cache_size: 1000,
            performance_window: Duration::from_secs(300),
        }
    }
}

impl Default for CompilationParameters {
    fn default() -> Self {
        Self {
            chain_strength: 1.0,
            annealing_schedule: vec![(0.0, 1.0), (1.0, 0.0)],
            temperature_compensation: 0.0,
            noise_mitigation: NoiseMitigationSettings::default(),
        }
    }
}

impl Default for NoiseMitigationSettings {
    fn default() -> Self {
        Self {
            enable_error_correction: false,
            noise_model: NoiseModel::Gaussian { variance: 0.01 },
            mitigation_strategy: MitigationStrategy::ZeroNoiseExtrapolation,
            correction_threshold: 0.05,
        }
    }
}