You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
 
 
 

42 lines
1.4 KiB

use futures::stream::BoxStream;
use crate::core::entities::EncodedValue;
use crate::core::errors::CodecError;
use super::entities::{DecodedValue, Dict, DictEntry};
use super::errors::RepositoryError;
pub trait SystemDecoder: Send + Sync {
fn decode(&self, word: &str) -> Result<DecodedValue, CodecError>;
}
pub trait SystemEncoder: Send + Sync {
fn initialize(&self) -> Result<(), CodecError>;
fn encode(&self, word: &str) -> Result<EncodedValue, CodecError>;
}
#[async_trait::async_trait]
pub trait DictRepository: Send + Sync {
fn use_dict(&mut self, name: &str);
async fn create_dict(&self) -> Result<(), RepositoryError>;
/// "Upsert" logic:
/// - If entry exists (by text), update metadata.
/// - If not, insert new.
/// - IDs are handled by the Database.
async fn save_entries(&self, entries: &[DictEntry]) -> Result<(), RepositoryError>;
/// Fetch a page of entries.
async fn fetch_many(&self, limit: usize, offset: usize) -> Result<Dict, RepositoryError>;
/// Returns a cold stream that fetches strings in chunks.
/// The stream yields `Result<Vec<String>, RepositoryError>`.
async fn stream_batches(
&self,
batch_size: usize,
) -> Result<BoxStream<'_, Result<Vec<String>, RepositoryError>>, RepositoryError>;
}
pub trait DictSource {
fn next_entry(&mut self) -> Option<Result<DictEntry, anyhow::Error>>;
}