//! Ensemble signal aggregation for trading models

use std;

use thiserror::Error;

pub mod aggregator;
pub mod confidence;
pub mod model;
pub mod voting;
pub mod weights;

// Re-export key types that are used across ensemble modules
pub use aggregator::{ModelSignal, SignalMetadata, SignalStatistics};

/// Errors that can occur in ensemble operations
#[derive(Error, Debug)]
/// `EnsembleError` component.
pub enum EnsembleError {
    #[error("Failed to acquire lock: {0}")]
    LockAcquisitionFailed(String),

    #[error("Invalid ensemble configuration: {0}")]
    InvalidConfiguration(String),

    #[error("Model not found: {0}")]
    ModelNotFound(String),

    #[error("Insufficient models for ensemble: expected {expected}, got {actual}")]
    InsufficientModels { expected: usize, actual: usize },

    #[error("Weight calculation failed: {0}")]
    WeightCalculationFailed(String),

    #[error("Aggregation failed: {0}")]
    AggregationFailed(String),
}