use thiserror::Error;
use offline_web_model::Reference;

#[derive(Error, Debug)]
pub enum StoreError {
    #[error("No such reference")]
    NoSuchReference,
    #[error("No such content address")]
    NoSuchContentAddress,
    #[error("Unknown Storage Error: {0:?}")]
    StorageError(Box<dyn std::error::Error>),
}

#[allow(async_fn_in_trait)]
pub trait ReferenceStore {
    async fn get_reference(&self, id: &str) -> Result<Reference, StoreError>;
    
    async fn get_content_for_reference(&self, reference: Reference) -> Result<String, StoreError>;

    async fn get_graph(&self, root_name: &str) -> Result<Vec<Reference>, StoreError>;
}

mod sqlite;

pub use sqlite::SqliteReferenceStore;

#[cfg(test)]
mod integration_tests;