pub mod disk;

use super::Result;
use crate::server::blobref::BlobRef;

pub fn factory<'a, T: StorageBackend>(config: &T::Config) -> impl Fn(&'a str) -> T + '_ {
    |bucket: &str| T::new(bucket, config)
}

pub trait StorageBackend: Iterator {
    type Config;

    fn new(bucket: &str, config: &Self::Config) -> Self;

    fn put(&self, data: &[u8]) -> Result<BlobRef>;

    fn get(&self, blobref: &BlobRef) -> Result<Option<Vec<u8>>>;

    fn exists(&self, blobref: &BlobRef) -> bool {
        if let Ok(Some(_)) = self.get(blobref) {
            return true;
        }

        false
    }
}