source: frontend/node_modules/filesize/lib/filesize.js

/**
 * filesize
 *
 * @copyright 2022 Jason Mulligan <jason.mulligan@avoidwork.com>
 * @license BSD-3-Clause
 * @version 8.0.7
 */
(function (global, factory) {
        typeof exports === 'object' && typeof module !== 'undefined' ? module.exports = factory() :
        typeof define === 'function' && define.amd ? define(factory) :
        (global = typeof globalThis !== 'undefined' ? globalThis : global || self, global.filesize = factory());
})(this, (function () { 'use strict';

        var b = /^(b|B)$/,
            symbol = {
          iec: {
            bits: ["bit", "Kibit", "Mibit", "Gibit", "Tibit", "Pibit", "Eibit", "Zibit", "Yibit"],
            bytes: ["B", "KiB", "MiB", "GiB", "TiB", "PiB", "EiB", "ZiB", "YiB"]
          },
          jedec: {
            bits: ["bit", "Kbit", "Mbit", "Gbit", "Tbit", "Pbit", "Ebit", "Zbit", "Ybit"],
            bytes: ["B", "KB", "MB", "GB", "TB", "PB", "EB", "ZB", "YB"]
          }
        },
            fullform = {
          iec: ["", "kibi", "mebi", "gibi", "tebi", "pebi", "exbi", "zebi", "yobi"],
          jedec: ["", "kilo", "mega", "giga", "tera", "peta", "exa", "zetta", "yotta"]
        },
            roundingFuncs = {
          floor: Math.floor,
          ceil: Math.ceil
        };
        /**
         * filesize
         *
         * @method filesize
         * @param  {Mixed}   arg        String, Int or Float to transform
         * @param  {Object}  descriptor [Optional] Flags
         * @return {String}             Readable file size String
         */

        function filesize(arg) {
          var descriptor = arguments.length > 1 && arguments[1] !== undefined ? arguments[1] : {};
          var result = [],
              val = 0,
              e,
              base,
              bits,
              ceil,
              full,
              fullforms,
              locale,
              localeOptions,
              neg,
              num,
              output,
              pad,
              round,
              u,
              unix,
              separator,
              spacer,
              standard,
              symbols,
              roundingFunc,
              precision;

          if (isNaN(arg)) {
            throw new TypeError("Invalid number");
          }

          bits = descriptor.bits === true;
          unix = descriptor.unix === true;
          pad = descriptor.pad === true;
          base = descriptor.base || 10;
          round = descriptor.round !== void 0 ? descriptor.round : unix ? 1 : 2;
          locale = descriptor.locale !== void 0 ? descriptor.locale : "";
          localeOptions = descriptor.localeOptions || {};
          separator = descriptor.separator !== void 0 ? descriptor.separator : "";
          spacer = descriptor.spacer !== void 0 ? descriptor.spacer : unix ? "" : " ";
          symbols = descriptor.symbols || {};
          standard = base === 2 ? descriptor.standard || "iec" : "jedec";
          output = descriptor.output || "string";
          full = descriptor.fullform === true;
          fullforms = descriptor.fullforms instanceof Array ? descriptor.fullforms : [];
          e = descriptor.exponent !== void 0 ? descriptor.exponent : -1;
          roundingFunc = roundingFuncs[descriptor.roundingMethod] || Math.round;
          num = Number(arg);
          neg = num < 0;
          ceil = base > 2 ? 1000 : 1024;
          precision = isNaN(descriptor.precision) === false ? parseInt(descriptor.precision, 10) : 0; // Flipping a negative number to determine the size

          if (neg) {
            num = -num;
          } // Determining the exponent


          if (e === -1 || isNaN(e)) {
            e = Math.floor(Math.log(num) / Math.log(ceil));

            if (e < 0) {
              e = 0;
            }
          } // Exceeding supported length, time to reduce & multiply


          if (e > 8) {
            if (precision > 0) {
              precision += 8 - e;
            }

            e = 8;
          }

          if (output === "exponent") {
            return e;
          } // Zero is now a special case because bytes divide by 1


          if (num === 0) {
            result[0] = 0;
            u = result[1] = unix ? "" : symbol[standard][bits ? "bits" : "bytes"][e];
          } else {
            val = num / (base === 2 ? Math.pow(2, e * 10) : Math.pow(1000, e));

            if (bits) {
              val = val * 8;

              if (val >= ceil && e < 8) {
                val = val / ceil;
                e++;
              }
            }

            var p = Math.pow(10, e > 0 ? round : 0);
            result[0] = roundingFunc(val * p) / p;

            if (result[0] === ceil && e < 8 && descriptor.exponent === void 0) {
              result[0] = 1;
              e++;
            }

            u = result[1] = base === 10 && e === 1 ? bits ? "kbit" : "kB" : symbol[standard][bits ? "bits" : "bytes"][e];

            if (unix) {
              result[1] = result[1].charAt(0);

              if (b.test(result[1])) {
                result[0] = Math.floor(result[0]);
                result[1] = "";
              }
            }
          } // Decorating a 'diff'


          if (neg) {
            result[0] = -result[0];
          } // Setting optional precision


          if (precision > 0) {
            result[0] = result[0].toPrecision(precision);
          } // Applying custom symbol


          result[1] = symbols[result[1]] || result[1];

          if (locale === true) {
            result[0] = result[0].toLocaleString();
          } else if (locale.length > 0) {
            result[0] = result[0].toLocaleString(locale, localeOptions);
          } else if (separator.length > 0) {
            result[0] = result[0].toString().replace(".", separator);
          }

          if (pad && Number.isInteger(result[0]) === false && round > 0) {
            var x = separator || ".",
                tmp = result[0].toString().split(x),
                s = tmp[1] || "",
                l = s.length,
                n = round - l;
            result[0] = "".concat(tmp[0]).concat(x).concat(s.padEnd(l + n, "0"));
          }

          if (full) {
            result[1] = fullforms[e] ? fullforms[e] : fullform[standard][e] + (bits ? "bit" : "byte") + (result[0] === 1 ? "" : "s");
          } // Returning Array, Object, or String (default)


          return output === "array" ? result : output === "object" ? {
            value: result[0],
            symbol: result[1],
            exponent: e,
            unit: u
          } : result.join(spacer);
        } // Partial application for functional programming


        filesize.partial = function (opt) {
          return function (arg) {
            return filesize(arg, opt);
          };
        };

        return filesize;

}));