import { prisma } from '../integration/setup';

/**
 * Truncates every table in the public schema (except _prisma_migrations)
 * so each test starts from an empty database. Sequences are reset to keep
 * autoincrement ids predictable.
 */
export async function resetDatabase() {
  const tables = await prisma.$queryRawUnsafe<{ tablename: string }[]>(
    `SELECT tablename::text AS tablename FROM pg_tables
     WHERE schemaname = 'public' AND tablename <> '_prisma_migrations'`
  );
  if (tables.length === 0) return;

  const list = tables.map(({ tablename }) => `"public"."${tablename}"`);
  await prisma.$executeRawUnsafe(
    `TRUNCATE ${list.join(', ')} RESTART IDENTITY CASCADE;`
  );
}