import { useQuery, useMutation, useQueryClient } from '@tanstack/react-query';
import type { components } from '../schema';
import { apiClient, useSelectedEnv } from './alertMeta';

export type AlertNotificationDto = components['schemas']['AlertNotificationDto'];

// NOTE ON TYPES: the generated OpenAPI schema for env-scoped alert-notification
// endpoints emits `path?: never` plus a `query.env: Environment` parameter
// because the server resolves the env via the `@EnvPath` argument resolver,
// which the OpenAPI scanner does not recognise as a path variable. At runtime
// the URL template `{envSlug}` is substituted from `params.path.envSlug` by
// openapi-fetch regardless of what the TS types say; we therefore cast the
// call options to `any` on each call to bypass the generated type oddity.

/** List notifications for a given alert instance. */
export function useAlertNotifications(alertId: string | undefined) {
  const env = useSelectedEnv();
  return useQuery({
    queryKey: ['alertNotifications', env, alertId],
    enabled: !!env && !!alertId,
    queryFn: async () => {
      if (!env || !alertId) throw new Error('no env/alertId');
      const { data, error } = await apiClient.GET(
        '/environments/{envSlug}/alerts/{alertId}/notifications',
        {
          params: { path: { envSlug: env, alertId } },
        } as any,
      );
      if (error) throw error;
      return data as AlertNotificationDto[];
    },
  });
}

/** Retry a failed notification. Uses the flat path — notification IDs are
 * globally unique across environments, so the endpoint is not env-scoped.
 */
export function useRetryNotification() {
  const qc = useQueryClient();
  return useMutation({
    mutationFn: async (id: string) => {
      const { error } = await apiClient.POST(
        '/alerts/notifications/{id}/retry',
        {
          params: { path: { id } },
        } as any,
      );
      if (error) throw error;
    },
    onSuccess: () => {
      qc.invalidateQueries({ queryKey: ['alertNotifications'] });
    },
  });
}