import { vi } from "vitest";
import type { Logger } from "@atbb/logger";

/**
 * Create a mock Logger for unit tests.
 * All methods are vi.fn() spies so tests can assert on calls.
 */
export function createMockLogger(): Logger & {
  debug: ReturnType<typeof vi.fn>;
  info: ReturnType<typeof vi.fn>;
  warn: ReturnType<typeof vi.fn>;
  error: ReturnType<typeof vi.fn>;
  fatal: ReturnType<typeof vi.fn>;
} {
  const mock: Logger = {
    debug: vi.fn(),
    info: vi.fn(),
    warn: vi.fn(),
    error: vi.fn(),
    fatal: vi.fn(),
    child: vi.fn().mockReturnThis(),
    shutdown: vi.fn().mockResolvedValue(undefined),
  };
  return mock as any;
}