// 距离值归一化为米/公里展示结构
export const normalizeDistanceKm = (value: any) => {
  const num = Number(value);
  if (Number.isNaN(num)) {
    return null;
  }
  if (num >= 1000) {
    return { value: Number((num / 1000).toFixed(1)), unit: 'km' as const };
  }
  return { value: Math.max(0, Math.round(num)), unit: 'm' as const };
};

// 时长值归一化为秒
export const normalizeDurationSeconds = (value: any) => {
  const num = Number(value);
  if (Number.isNaN(num)) {
    return null;
  }
  return Math.round(num);
};

// 剩余时长展示（begin-route）：分钟按向下截断，秒按四舍五入
export const formatRemainingDurationDisplay = (value: any) => {
  const num = Number(value);
  if (Number.isNaN(num)) {
    return { value: 0, unit: '分钟' as const };
  }
  if (num < 60) {
    return { value: Math.max(0, Math.round(num)), unit: '秒' as const };
  }
  return { value: Math.max(0, Math.floor(num / 60)), unit: '分钟' as const };
};