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use std::path::{Path, PathBuf};

use anyhow::Result;

// REFACTOR: most of this impl is the same across all types
/// Configuration file for some component of the monorepo.
pub trait ConfigurationFile<T> {
    /// Basename of the configuration file.
    const FILENAME: &'static str;

    /// Create an instance of this configuration file by reading
    /// the specified file from this directory on disk.
    fn from_directory(monorepo_root: &Path, directory: &Path) -> Result<T>;

    /// Relative path to directory containing this configuration file,
    /// from monorepo root.
    fn directory(&self) -> PathBuf;

    /// Relative path to this configuration file from the monorepo root.
    fn path(&self) -> PathBuf;

    /// Write this configuration file to disk.
    fn write(&self) -> Result<()>;
}