//! SQLite-backed message log: per-session `messages.sqlite` storing chat
//! messages, blobs, and archive/summary metadata.

pub mod blobs;
pub mod query;
pub mod schema;

pub use blobs::store_blob;
pub use query::insert_message;

/// Open (creating if needed) a session's `messages.sqlite` and ensure its
/// schema is initialized.
///
/// Flow: resolve `<session_dir>/messages.sqlite` → create parent dirs →
/// open a `SQLite` connection → run `schema::init_schema`.
///
/// Return: an open, schema-ready `Connection`, or an error if any step
/// fails.
pub fn open_or_create(session_dir: &std::path::Path) -> anyhow::Result<rusqlite::Connection> {
    let path = session_dir.join("messages.sqlite");
    if let Some(parent) = path.parent() {
        std::fs::create_dir_all(parent)?;
    }
    let conn = rusqlite::Connection::open(&path)?;
    conn.execute_batch("PRAGMA journal_mode = WAL;")?;
    conn.execute_batch("PRAGMA busy_timeout = 5000;")?;
    schema::init_schema(&conn)?;
    Ok(conn)
}