taro/src/utils/time_format.ts

export class TimeFormatter {
    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');
    }
  }