//! Error types for PINN source localization.

use thiserror::Error;

/// PINN error types
#[derive(Debug, Error)]
pub enum PinnError {
    /// Invalid configuration
    #[error("Invalid configuration: {0}")]
    InvalidConfig(String),

    /// Dimension mismatch
    #[error("Dimension mismatch: {0}")]
    DimensionMismatch(String),

    /// Training error
    #[error("Training error: {0}")]
    TrainingError(String),

    /// Convergence failure
    #[error("Failed to converge: {0}")]
    ConvergenceError(String),

    /// Invalid head model
    #[error("Invalid head model: {0}")]
    InvalidHeadModel(String),

    /// Sensor configuration error
    #[error("Sensor error: {0}")]
    SensorError(String),

    /// Physics constraint violation
    #[error("Physics violation: {0}")]
    PhysicsViolation(String),

    /// Numerical error
    #[error("Numerical error: {0}")]
    NumericalError(String),
}

/// Result type for PINN operations
pub type PinnResult<T> = Result<T, PinnError>;