pub mod filesystem;
pub mod memory;

use async_trait::async_trait;
use bytes::Bytes;
use thiserror::Error;

#[derive(Debug, Error)]
pub enum SegmentStoreError {
    #[error("segment not found: {0}")]
    NotFound(String),
    #[error("io error: {0}")]
    Io(#[from] std::io::Error),
}

pub type SegmentStoreResult<T> = Result<T, SegmentStoreError>;

#[async_trait]
pub trait SegmentStore: Send + Sync {
    async fn write_segment(&self, channel_id: &str, name: &str, data: Bytes)
        -> SegmentStoreResult<()>;

    async fn read_segment(&self, channel_id: &str, name: &str) -> SegmentStoreResult<Bytes>;

    async fn list_segments(&self, channel_id: &str) -> SegmentStoreResult<Vec<String>>;

    async fn delete_segment(&self, channel_id: &str, name: &str) -> SegmentStoreResult<()>;
}