function pluralize(time, label) {
  if (time === 1) {
    return time + label;
  }
  return time + label + "s";
}
export function timeAgo(time) {
  const between = Date.now() / 1000 - Number(time);
  if (between < 3600) {
    return pluralize(~~(between / 60), " minute");
  } else if (between < 86400) {
    return pluralize(~~(between / 3600), " hour");
  } else {
    return pluralize(~~(between / 86400), " day");
  }
}

export function parseTime(time, cFormat) {
  if (arguments.length === 0) {
    return null;
  }

  if ((time + "").length === 10) {
    time = +time * 1000;
  }

  const format = cFormat || "{y}-{m}-{d} {h}:{i}:{s}";
  let date;
  if (typeof time === "object") {
    date = time;
  } else {
    date = new Date(parseInt(time));
  }
  const formatObj = {
    y: date.getFullYear(),
    m: date.getMonth() + 1,
    d: date.getDate(),
    h: date.getHours(),
    i: date.getMinutes(),
    s: date.getSeconds(),
    a: date.getDay()
  };
  const timeStr = format.replace(/{(y|m|d|h|i|s|a)+}/g, (result, key) => {
    let value = formatObj[key];
    if (key === "a")
      return ["一", "二", "三", "四", "五", "六", "日"][value - 1];
    if (result.length > 0 && value < 10) {
      value = "0" + value;
    }
    return value || 0;
  });
  return timeStr;
}
export function rTime(date) {
  var json_date = new Date(date).toJSON();
  return new Date(new Date(json_date) + 8 * 3600 * 1000)
    .toISOString()
    .replace(/T/g, " ")
    .replace(/\.[\d]{3}Z/, "");
}
export function formatTime(time, option) {
  time = +time * 1000;
  const d = new Date(time);
  const now = Date.now();

  const diff = (now - d) / 1000;

  if (diff < 30) {
    return "刚刚";
  } else if (diff < 3600) {
    // less 1 hour
    return Math.ceil(diff / 60) + "分钟前";
  } else if (diff < 3600 * 24) {
    return Math.ceil(diff / 3600) + "小时前";
  } else if (diff < 3600 * 24 * 2) {
    return "1天前";
  }
  if (option) {
    return parseTime(time, option);
  } else {
    return (
      d.getMonth() +
      1 +
      "月" +
      d.getDate() +
      "日" +
      d.getHours() +
      "时" +
      d.getMinutes() +
      "分"
    );
  }
}

/*  数字 格式化 */
export function nFormatter(num, digits) {
  const si = [
    { value: 1e18, symbol: "E" },
    { value: 1e15, symbol: "P" },
    { value: 1e12, symbol: "T" },
    { value: 1e9, symbol: "G" },
    { value: 1e6, symbol: "M" },
    { value: 1e3, symbol: "k" }
  ];
  for (let i = 0; i < si.length; i++) {
    if (num >= si[i].value) {
      return (
        (num / si[i].value + 0.1)
          .toFixed(digits)
          .replace(/\.0+$|(\.[0-9]*[1-9])0+$/, "$1") + si[i].symbol
      );
    }
  }
  return num.toString();
}

export function html2Text(val) {
  const div = document.createElement("div");
  div.innerHTML = val;
  return div.textContent || div.innerText;
}

export function toThousandslsFilter(num) {
  return (+num || 0)
    .toString()
    .replace(/^-?\d+/g, m => m.replace(/(?=(?!\b)(\d{3})+$)/g, ","));
}

/**
 * 格式化文件大小
 * @param value
 * @returns {*}
 */
export function renderSize(value) {
  if (!value || value === null || value === "") {
    return "";
  }
  let unitArr = ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"];
  let srcsize = parseFloat(value);
  let index = Math.floor(Math.log(srcsize) / Math.log(1024));
  let size = srcsize / Math.pow(1024, index);
  size = size.toFixed(0); // 保留的小数位数
  return size + unitArr[index];
}