export async function uploadMissionFile({
  missionId,
  file,
  type, // 'logo' or 'attachment'
}: {
  missionId: string;
  file: File;
  type: 'logo' | 'attachment';
}): Promise<{ success: boolean; data?: any; error?: string }> {
  const formData = new FormData();
  formData.append('missionId', missionId);
  formData.append('type', type);
  formData.append('file', file);

  const res = await fetch('/api/missions/upload', {
    method: 'POST',
    body: formData,
  });

  if (!res.ok) {
    const err = await res.json().catch(() => ({}));
    return { success: false, error: err.error || 'Upload failed' };
  }

  const data = await res.json();
  return { success: true, data };
}