use cairo::{Error as CairoError, IoError};
use std::io::Error as StdError;
use thiserror::Error;

/// Error types for rendering
#[derive(Debug, Error)]
pub enum RenderError {
    #[error("Cairo rendering error: {0}")]
    Cairo(String),

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

    #[error("Concave hull calculation failed")]
    GeometryError,

    #[error("IO error: {0}")]
    Io(#[from] StdError),
}

impl From<CairoError> for RenderError {
    fn from(err: CairoError) -> Self {
        RenderError::Cairo(err.to_string())
    }
}

impl From<IoError> for RenderError {
    fn from(err: IoError) -> Self {
        RenderError::Cairo(err.to_string())
    }
}