use std::{
    env, fs, io,
    path::{Path, PathBuf},
};

use uuid::Uuid;

#[derive(Debug)]
pub struct TempFile {
    path: PathBuf,
}

impl TempFile {
    /// Create a new unique `TempFile`. The file will not exist after this.
    pub fn new() -> Self {
        TempFile {
            path: generate_path(),
        }
    }

    pub fn to_path_buf(&self) -> PathBuf {
        self.path.clone()
    }
}

impl AsRef<Path> for TempFile {
    fn as_ref(&self) -> &Path {
        self.path.as_path()
    }
}

impl Drop for TempFile {
    fn drop(&mut self) {
        if let Err(e) = fs::remove_file(&self.path)
            && e.kind() != io::ErrorKind::NotFound
        {
            log::error!(
                "Unable to remove temp file {}: {:?}",
                self.path.display(),
                e
            );
        }
    }
}

fn generate_path() -> PathBuf {
    env::temp_dir().join(Uuid::new_v4().to_string())
}