use serde::de::DeserializeOwned;
use std::path::Path;
use thiserror::Error;

#[derive(Debug, Error)]
pub enum ConfigLoadingError {
    #[error(transparent)]
    IoError(#[from] std::io::Error),
    #[error(transparent)]
    ParseError(#[from] toml::de::Error),
}

pub fn config_from_file<T: DeserializeOwned>(
    filepath: impl AsRef<Path>,
) -> Result<T, ConfigLoadingError> {
    let toml_string: String = std::fs::read_to_string(filepath)?;
    Ok(toml::from_str(&toml_string)?)
}