import type { Context } from 'hono';

// eslint-disable-next-line @typescript-eslint/no-explicit-any
type AnyHandler = (c: Context<any>) => Promise<any>;

/**
 * Wraps a route handler with structured error logging.
 * Preserves the handler's generic type so Hono can infer env/input/output types correctly.
 */
export function handle<F extends AnyHandler>(label: string, fn: F): F {
  return (async (c: Context<any>) => {
    try {
      return await fn(c);
    } catch (err) {
      const msg = err instanceof Error ? err.message : String(err);
      const stack = err instanceof Error ? err.stack : undefined;
      console.error(`[${label}]`, c.req.method, c.req.path, msg, stack);
      return c.json({ error: 'internal server error', detail: msg }, 500);
    }
  }) as F;
}