//! Tests for Store initialization, WAL configuration, migrations, and SQLite invariants.

use nx9_wg_db::Store;
use sqlx::Row;
use tempfile::NamedTempFile;

#[tokio::test]
async fn test_in_memory_store_lifecycle() {
    let store = Store::connect_in_memory().await.expect("connect in-memory");
    store.migrate().await.expect("run migrations");

    // Verify foreign keys are enabled
    let row = sqlx::query("PRAGMA foreign_keys")
        .fetch_one(store.pool())
        .await
        .expect("pragma foreign_keys");
    let fk: i64 = row.get(0);
    assert_eq!(fk, 1, "foreign keys must be enabled");
}

#[tokio::test]
async fn test_temp_file_store_wal_mode() {
    let tmp = NamedTempFile::new().expect("temp file");
    let path = tmp.path();

    let store = Store::connect_path(path).await.expect("connect path");
    store.migrate().await.expect("run migrations");

    // Verify WAL mode is configured
    let row = sqlx::query("PRAGMA journal_mode")
        .fetch_one(store.pool())
        .await
        .expect("pragma journal_mode");
    let mode: String = row.get(0);
    assert_eq!(mode.to_lowercase(), "wal", "WAL mode must be active");

    // Verify migrations table exists and records the initial migration
    let migration_count_row = sqlx::query("SELECT COUNT(*) FROM _sqlx_migrations")
        .fetch_one(store.pool())
        .await
        .expect("query migrations");
    let count: i64 = migration_count_row.get(0);
    assert!(count >= 1, "at least one migration should be recorded");
}

#[tokio::test]
async fn test_migration_idempotence() {
    let store = Store::connect_in_memory().await.expect("connect in-memory");
    store.migrate().await.expect("first migration run");
    // Running migrate a second time must succeed idempotently
    store.migrate().await.expect("second migration run");
}