use async_trait::async_trait;
use moments_entities::{Event, EventQuery, SourceSummary};

#[derive(Debug, thiserror::Error)]
pub enum StoreError {
    #[error("database error: {0}")]
    Database(String),
}

/// Read-side port consumed by `moments-api`.
#[async_trait]
pub trait EventReader: Send + Sync {
    async fn list_events(&self, query: &EventQuery) -> Result<Vec<Event>, StoreError>;
    async fn source_summaries(&self) -> Result<Vec<SourceSummary>, StoreError>;
}

/// Write-side port consumed by `moments-worker`. Idempotent upserts on `id`.
#[async_trait]
pub trait EventWriter: Send + Sync {
    async fn upsert_events(&self, events: &[Event]) -> Result<usize, StoreError>;
}