use thiserror::Error;
#[derive(Debug, Error)]
pub enum Error {
#[error("i/o error: {0}")]
Io(#[from] std::io::Error),
#[error("regex compile error: {0}")]
Regex(#[from] regex::Error),
#[error("yaml error: {0}")]
Yaml(#[from] serde_yaml::Error),
#[error("json error: {0}")]
Json(#[from] serde_json::Error),
#[error("budget exceeded: {actual} tokens > {limit}")]
BudgetExceeded { actual: usize, limit: usize },
#[error("external tool failed: {0}")]
Tool(String),
#[error("invalid glob: {0}")]
Glob(String),
#[error("invalid configuration: {0}")]
Config(String),
#[error("not yet implemented: {0}")]
NotImplemented(&'static str),
}
pub type Result<T> = std::result::Result<T, Error>;