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use std::fmt::{Display, Formatter, Result};
use std::path::PathBuf;

#[derive(Debug, Clone, PartialEq, Eq)]
pub enum Error {
    CannotWriteFile {
        path: PathBuf,
        reason: String,
    },
    CannotCreateDirectory {
        path: PathBuf,
        reason: String,
    },
    GitError {
        reason: String,
    },
}

impl Display for Error {
    fn fmt(&self, f: &mut Formatter<'_>) -> Result {
        match self {
            Self::CannotWriteFile { path, reason } => {
                write!(f, "unable to write file at {}: {}", path.display(), reason)
            }
            Self::CannotCreateDirectory { path, reason } => {
                write!(f, "unable to create directory at {}: {}", path.display(), reason)
            }
            Self::GitError { reason } => {
                write!(f, "an git error happened: {}", reason)
            }
        }
    }
}