//! Error types for the digital twin platform.

use thiserror::Error;

/// Errors that can occur in digital twin operations.
#[derive(Error, Debug)]
pub enum DigitalTwinError {
    /// Invalid geometry configuration
    #[error("Invalid geometry: {0}")]
    InvalidGeometry(String),

    /// Unknown tissue type
    #[error("Unknown tissue type: {0}")]
    UnknownTissue(String),

    /// Simulation error
    #[error("Simulation error: {0}")]
    SimulationError(String),

    /// Invalid boundary condition
    #[error("Invalid boundary condition: {0}")]
    InvalidBoundaryCondition(String),

    /// Shape mismatch
    #[error("Shape mismatch: expected {expected:?}, got {got:?}")]
    ShapeMismatch {
        /// Expected shape
        expected: [usize; 3],
        /// Actual shape
        got: [usize; 3],
    },

    /// Intervention error
    #[error("Intervention error: {0}")]
    InterventionError(String),

    /// IO error
    #[error("IO error: {0}")]
    IoError(#[from] std::io::Error),
}

/// Result type for digital twin operations.
pub type Result<T> = std::result::Result<T, DigitalTwinError>;