harmony_vehicle_terminal/entry/src/main/ets/utils/Common.ets

import dayTs from './Date';
import fs from '@ohos.file.fs';
import { BusinessError } from '@ohos.base';
import { CommonFileTag } from '../config';
import abilityAccessCtrl, { Permissions } from '@ohos.abilityAccessCtrl';
import Prompt from '@system.prompt';
import { dConsole } from './LogWorker';
import common from '@ohos.app.ability.common';

enum timeType {
  fulltime = 1
}

/**
 * 获取当前时间
 * @param type
 * @returns
 */
export function GetCurrentTime(type?: timeType): string {
  if (type === 1) {
    return dayTs().format("YYYYMMDDHHmmss")
  } else {
    return dayTs().format("YYYY-MM-DD HH:mm:ss")
  }
}

/**
 * 是否是指定天数之前
 * @param date
 * @param days
 * @returns
 */
export function IsDaysAgo(date: string | number | Date, days: number = 2): boolean {
  const today = dayTs(); // 当前日期
  const target = dayTs(date).format("YYYY-MM-DD HH:mm:ss.SSS"); // 需要判断的日期
  // 计算两个日期之间的差异天数
  const diffDays = today.diff(target, 'day');
  // 如果差异天数大于等于指定天数，则返回 true
  return diffDays >= days;
}

/**
 * 字符串转字节数组
 * @param str
 * @returns
 */
export function StringToBytes(str: string): Uint8Array {
  const bytes = new Uint8Array(str.length);
  for (let i = 0; i < str.length; i++) {
    bytes[i] = str.charCodeAt(i);
  }
  return bytes;
}

/**
 * 字符串转ASCII码
 * @param str 需要转换的字符串
 * @returns 返回ASCII码数组
 */
export function StringToASCII(str: string): number[] {
  const arr: number[] = [];
  for (let i = 0; i < str.length; i++) {
    arr.push(str.charCodeAt(i));
  }
  return arr;
}

/**
 * 数组转字节
 * @param array 需要转换的数组
 * @returns 返回字节数组
 */
export function ArrayToByteArray(array: number[]): Uint8Array {
  const buf = new ArrayBuffer(array.length);
  const view = new Uint8Array(buf);
  for (let i = 0; i < array.length; i++) {
    view[i] = array[i] & 0xFF;
  }
  return view;
}

/**
 * 数字转字节数组
 * @param number 要转换的数字
 * @param len 字节数
 * @returns 返回字节数组
 */
export function NumberToByteArray(number: number | string, len: number): number[] {
  let str = Math.floor(Number(number)).toString(2);
  if (str.length > len) {
    console.log('数据长度不对~~');
    return [];
  }
  const byteString = FillZero(str, len);

  const arrBytes: number[] = [];
  for (let i = byteString.length; i > 0; ) {
    let j = i - 8;
    if (j < 0) {
      j = 0;
    }
    const s = byteString.slice(j, i);
    const v = parseInt(s, 2);
    arrBytes.push(v);
    i -= 8;
  }
  return arrBytes;
}

/*
  * 将字符串填充为指定长度的字符串，前面补0
  * @param str 要填充的字符串或数字
  * @param len 目标长度
  * @return 返回填充后的字符串
 */
export function FillZero(str: string | number, len: number): string {
  str = str.toString();
  if (str.length >= len || len <= 0) {
    return str;
  }
  const zeroStr = '0'.repeat(len - str.length);
  return zeroStr + str;
}

/**
 * 将数组按指定大小分块
 * @param arr 原始数组
 * @param size 每块大小（必须 >= 1）
 * @returns 分块后的二维数组
 */
export function CutArray<T>(arr: readonly T[], size: number): T[][] {
  if (!Array.isArray(arr) || size < 1) {
    return [];
  }

  const result: T[][] = [];
  for (let i = 0; i < arr.length; i += size) {
    result.push(arr.slice(i, i + size));
  }
  return result;
}

/**
 * 将GPS坐标从度分格式(DDMM.MMMM)转换为十进制度格式
 * @param ddmm - 度分格式坐标(例如 11630.1234 表示116度30.1234分)
 * @returns 十进制度格式坐标(例如 116.502056666...)
 */
export function ConvertDdmmToDecimalDegrees(ddmm: number): number {
  // 提取度数部分：除以100后取整
  const degrees = Math.floor(ddmm / 100);
  // 提取分数部分（包含小数）：对100取模
  const minutes = ddmm % 100;
  // 将分数转换为度并相加：1度=60分
  return degrees + minutes / 60;
}

/**
 * 深度克隆对象
 * @param target
 * @returns
 */
export function DeepClone<T extends Object>(target: T): T {
  // 如果是对象，且不是原始值null
  if (typeof target === 'object' && target !== null) {
    // 创建容器
    const result: ESObject = Array.isArray(target) ? [] : {};
    const keys = Object.keys(target) as Array<keyof T>; //注解二
    keys.forEach(key => {
      Reflect.set(result, key, DeepClone(Reflect.get(target, key)));
    });
    return result;
  }
  // 如果是原始值，则直接返回
  return target;
}

/*
  * 检查文件或目录是否存在
  * @param path 文件或目录的路径
  * @return 返回一个 Promise，解析为 true 如果存在，否则为 false
 */
export function IsExit(path: string): Promise<boolean> {
  return new Promise((resolve, reject) => {
    try {
      let res = fs.accessSync(path);
      if (res) {
        console.info(CommonFileTag, "file exists");
        resolve(true);
      } else {
        console.info(CommonFileTag, "file not exists");
        resolve(false);
      }
    } catch (error) {
      let err: BusinessError = error as BusinessError;
      console.error(CommonFileTag,
        "accessSync failed with error message: " + err.message + ", error code: " + err.code);
      reject(false);
    }
  });
}

/**
 * 创建文件夹
 * @param path 文件夹路径
 * @return 返回一个 Promise，解析为 true 如果创建成功，否则为 false
 */
export function CreateDir(path: string): Promise<boolean> {
  return new Promise((resolve, reject) => {
    try {
      fs.mkdirSync(path);
      console.info(CommonFileTag, "Directory created successfully");
      resolve(true);
    } catch (error) {
      let err: BusinessError = error as BusinessError;
      console.error(CommonFileTag, "mkdirSync failed with error message: " + err.message + ", error code: " + err.code);
      reject(false);
    }
  });
}

/*
  * 将秒数转换为灵活的时间格式（HH:MM:SS）
  * @param seconds 要转换的秒数
  * @return 返回格式化后的时间字符串
 */
export function FormatTimeFlexible(seconds: number): string {
  if (seconds < 0) {
    throw new Error("秒数不能为负数");
  }

  const hours = Math.floor(seconds / 3600);
  const minutes = Math.floor((seconds % 3600) / 60);
  const secs = seconds % 60;

  // 强制使用两位数格式化，确保始终是 HH:MM:SS
  const formattedHours = hours.toString().padStart(2, '0');
  const formattedMinutes = minutes.toString().padStart(2, '0');
  const formattedSeconds = secs.toString().padStart(2, '0');

  return `${formattedHours}:${formattedMinutes}:${formattedSeconds}`;
}

/**
 * 申请授权
 * @param context 上下文
 * @param permissionList 需要申请的权限列表
 */
export function ApplyForAuthorization(context: Context, permissionList: Array<Permissions>) {
  const atManager = abilityAccessCtrl.createAtManager()
  atManager.requestPermissionsFromUser(context, permissionList, (code, result) => {
    if (result.authResults[0] === -1) {
      Prompt.showToast({
        message: '请先授权',
        duration: 3000,
      })
    }
  })
}

/*
  * 使用权限
  * @param context 上下文
  * @return 返回一个 Promise，解析为 true 如果授权成功，否则为 false
 */
export async function UseAuth(context: common.UIAbilityContext): Promise<boolean> {
  dConsole.log("权限授权开始1")
  return new Promise((resolve, reject) => {
    const permissions: Array<Permissions> =
      [
        "ohos.permission.SET_TIME",
        "ohos.permission.READ_IMAGEVIDEO",
        "ohos.permission.DISTRIBUTED_DATASYNC",
        "ohos.permission.CONNECTIVITY_INTERNAL",
        "ohos.permission.CAMERA",
        "ohos.permission.READ_MEDIA",
        "ohos.permission.WRITE_MEDIA",
        "ohos.permission.FILE_ACCESS_MANAGER"
      ];
    dConsole.log("权限授权开始2")
    abilityAccessCtrl.createAtManager().requestPermissionsFromUser(context, permissions).then(res => {
      let grantStatus: Array<number> = res.authResults;
      let length: number = grantStatus.length;
      dConsole.log("权限", length)
      dConsole.log("权限状态", JSON.stringify(grantStatus))
      resolve(true)
      for (let i = 0; i < length; i++) {
        if (grantStatus[i] !== 0) {
          reject(false)
          return;
        }
      }
    }).catch((err: BusinessError) => {
      dConsole.error("获取权限失败", JSON.stringify(err))
      reject(false)
    })
  })
}