taro/src/utils/time_format.ts

export class TimeFormatter {
  //格式化时间
  static formatTimestamp(timestamp: number): string {
    const currentDate = new Date();
    const inputDate = new Date(timestamp);

    // 判断是否是今天
    if (
      inputDate.getDate() === currentDate.getDate() &&
      inputDate.getMonth() === currentDate.getMonth() &&
      inputDate.getFullYear() === currentDate.getFullYear()
    ) {
      return `今天 ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 判断是否是昨天
    const yesterday = new Date();
    yesterday.setDate(currentDate.getDate() - 1);

    if (
      inputDate.getDate() === yesterday.getDate() &&
      inputDate.getMonth() === yesterday.getMonth() &&
      inputDate.getFullYear() === yesterday.getFullYear()
    ) {
      return `昨天 ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 判断是否是明天
    const tomorrow = new Date();
    tomorrow.setDate(currentDate.getDate() + 1);

    if (
      inputDate.getDate() === tomorrow.getDate() &&
      inputDate.getMonth() === tomorrow.getMonth() &&
      inputDate.getFullYear() === tomorrow.getFullYear()
    ) {
      return `明天 ${TimeFormatter.formatTime(inputDate)}`;
    }

    // 返回 YYYY-MM-DD HH:mm
    return `${inputDate.getFullYear()}-${TimeFormatter.formatNumber(inputDate.getMonth() + 1)}-${TimeFormatter.formatNumber(
      inputDate.getDate()
    )} ${TimeFormatter.formatTime(inputDate)}`;
  }

  static formatTime(date: Date): string {
    return `${TimeFormatter.formatNumber(date.getHours())}:${TimeFormatter.formatNumber(date.getMinutes())}`;
  }

  static formatNumber(num: number): string {
    return num.toString().padStart(2, '0');
  }

  //计算时间间隔
  static calculateTimeDifference(startTimestamp: number, endTimestamp: number): string {
    const diff = Math.abs(endTimestamp - startTimestamp);
    // 计算小时、分钟和秒数
    const hours = Math.floor(diff / (1000 * 60 * 60));
    const minutes = Math.floor((diff % (1000 * 60 * 60)) / (1000 * 60));
    const seconds = Math.floor((diff % (1000 * 60)) / 1000);

    // 根据间隔的大小返回不同的格式
    if (diff < 60000) {
      return `${seconds}秒`;
    } else if (diff < 3600000) {
      return `${minutes}分${seconds}秒`;
    } else {
      return `${hours}小时${minutes}分${seconds}秒`;
    }
  }
}