export default function formatTimestamp(timestamp) {
  const now = new Date();
  const date = new Date(timestamp * 1000);

  // 检查是否是今天
  if (now.toDateString() === date.toDateString()) {
    return date.toLocaleTimeString(undefined, {
      hour: "numeric",
      minute: "numeric",
    });
  }

  // 获取昨天的日期
  const yesterday = new Date(now);
  yesterday.setDate(now.getDate() - 1);

  // 检查是否是昨天
  if (yesterday.toDateString() === date.toDateString()) {
    return `昨天 ${date.getHours()}:${String(date.getMinutes()).padStart(
      2,
      "0"
    )}`;
  }

  // 检查是否是今年
  if (now.getFullYear() === date.getFullYear()) {
    return `${
      date.getMonth() + 1
    }-${date.getDate()} ${date.getHours()}:${String(date.getMinutes()).padStart(
      2,
      "0"
    )}`;
  }

  // 不是今年，返回完整日期和时间
  return `${date.getFullYear()}-${
    date.getMonth() + 1
  }-${date.getDate()} ${date.getHours()}:${String(date.getMinutes()).padStart(
    2,
    "0"
  )}`;
}