import { Database } from "bun:sqlite";

export function initDb(path: string): Database {
  const db = new Database(path, { create: true });
  db.exec("PRAGMA journal_mode = WAL");
  db.exec("PRAGMA foreign_keys = ON");

  db.exec(`
    CREATE TABLE IF NOT EXISTS instances (
      id TEXT PRIMARY KEY,
      slug TEXT UNIQUE NOT NULL,
      display_name TEXT NOT NULL,
      primary_domain TEXT NOT NULL,
      fallback_domain TEXT NOT NULL,
      owner TEXT NOT NULL,
      status TEXT NOT NULL DEFAULT 'provisioning',
      compose_path TEXT,
      created_at TEXT DEFAULT (datetime('now')),
      updated_at TEXT DEFAULT (datetime('now'))
    );

    CREATE TABLE IF NOT EXISTS provision_log (
      id INTEGER PRIMARY KEY AUTOINCREMENT,
      instance_id TEXT NOT NULL REFERENCES instances(id),
      action TEXT NOT NULL,
      detail TEXT,
      created_at TEXT DEFAULT (datetime('now'))
    );

    CREATE INDEX IF NOT EXISTS idx_instances_slug ON instances(slug);
    CREATE INDEX IF NOT EXISTS idx_instances_owner ON instances(owner);
    CREATE INDEX IF NOT EXISTS idx_provision_log_instance ON provision_log(instance_id);
  `);

  return db;
}