// Common test utilities.

use std::path::PathBuf;
use nutrition_mcp::db::{self, DbPool};

/// A temporary SQLite database for testing.
/// Creates a unique DB file in /tmp that is cleaned up on drop.
pub struct TestDb {
    pub pool: DbPool,
    _path: PathBuf,
}

impl TestDb {
    pub async fn new() -> Self {
        let path = std::env::temp_dir().join(format!(
            "nutrition-test-{}-{}.db",
            std::process::id(),
            uuid::Uuid::new_v4()
        ));
        let pool = db::init_database(&path).await.expect("failed to init test DB");
        Self {
            pool,
            _path: path,
        }
    }
}

impl Drop for TestDb {
    fn drop(&mut self) {
        // Best-effort cleanup — ignore errors
        let _ = std::fs::remove_file(&self._path);
        let wal = self._path.with_extension("db-wal");
        let shm = self._path.with_extension("db-shm");
        let _ = std::fs::remove_file(&wal);
        let _ = std::fs::remove_file(&shm);
    }
}