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?? Editing: number-formatter.ts

/**
 * Copyright since 2007 PrestaShop SA and Contributors
 * PrestaShop is an International Registered Trademark & Property of PrestaShop SA
 *
 * NOTICE OF LICENSE
 *
 * This source file is subject to the Open Software License (OSL 3.0)
 * that is bundled with this package in the file LICENSE.md.
 * It is also available through the world-wide-web at this URL:
 * https://opensource.org/licenses/OSL-3.0
 * If you did not receive a copy of the license and are unable to
 * obtain it through the world-wide-web, please send an email
 * to license@prestashop.com so we can send you a copy immediately.
 *
 * DISCLAIMER
 *
 * Do not edit or add to this file if you wish to upgrade PrestaShop to newer
 * versions in the future. If you wish to customize PrestaShop for your
 * needs please refer to https://devdocs.prestashop.com/ for more information.
 *
 * @author    PrestaShop SA and Contributors <contact@prestashop.com>
 * @copyright Since 2007 PrestaShop SA and Contributors
 * @license   https://opensource.org/licenses/OSL-3.0 Open Software License (OSL 3.0)
 */
/**
 * These placeholders are used in CLDR number formatting templates.
 * They are meant to be replaced by the correct localized symbols in the number formatting process.
 */
import NumberSymbol from '@app/cldr/number-symbol';
import PriceSpecification from '@app/cldr/specifications/price';
import NumberSpecification from '@app/cldr/specifications/number';

// eslint-disable-next-line
const escapeRE = require('lodash.escaperegexp');

const CURRENCY_SYMBOL_PLACEHOLDER = '¤';
const DECIMAL_SEPARATOR_PLACEHOLDER = '.';
const GROUP_SEPARATOR_PLACEHOLDER = ',';
const MINUS_SIGN_PLACEHOLDER = '-';
const PERCENT_SYMBOL_PLACEHOLDER = '%';
const PLUS_SIGN_PLACEHOLDER = '+';

class NumberFormatter {
  numberSpecification: Record<string, any>;

/**
   * @param NumberSpecification specification Number specification to be used
   *   (can be a number spec, a price spec, a percentage spec)
   */
  constructor(specification: Record<string, any>) {
    this.numberSpecification = specification;
  }

/**
   * Formats the passed number according to specifications.
   *
   * @param int|float|string number The number to format
   * @param NumberSpecification specification Number specification to be used
   *   (can be a number spec, a price spec, a percentage spec)
   *
   * @return string The formatted number
   *                You should use this this value for display, without modifying it
   */
  format(number: number, specification?: Record<string, any>): string {
    if (specification !== undefined) {
      this.numberSpecification = specification;
    }

/*
     * We need to work on the absolute value first.
     * Then the CLDR pattern will add the sign if relevant (at the end).
     */
    const num = Math.abs(number).toFixed(
      this.numberSpecification.getMaxFractionDigits(),
    );

let [majorDigits, minorDigits] = this.extractMajorMinorDigits(num);
    majorDigits = <string> this.splitMajorGroups(majorDigits);
    minorDigits = this.adjustMinorDigitsZeroes(minorDigits);

// Assemble the final number
    let formattedNumber = majorDigits;

if (minorDigits) {
      formattedNumber += DECIMAL_SEPARATOR_PLACEHOLDER + minorDigits;
    }

// Get the good CLDR formatting pattern. Sign is important here !
    const pattern = this.getCldrPattern(number < 0);
    formattedNumber = this.addPlaceholders(formattedNumber, pattern);
    formattedNumber = this.replaceSymbols(formattedNumber);

formattedNumber = this.performSpecificReplacements(formattedNumber);

return formattedNumber;
  }

/**
   * Get number's major and minor digits.
   *
   * Major digits are the "integer" part (before decimal separator),
   * minor digits are the fractional part
   * Result will be an array of exactly 2 items: [majorDigits, minorDigits]
   *
   * Usage example:
   *  list(majorDigits, minorDigits) = this.getMajorMinorDigits(decimalNumber);
   *
   * @param DecimalNumber number
   *
   * @return string[]
   */
  extractMajorMinorDigits(number: string): Array<string> {
    // Get the number's major and minor digits.
    const result = number.toString().split('.');
    const majorDigits = result[0];
    const minorDigits = result[1] === undefined ? '' : result[1];

return [majorDigits, minorDigits];
  }

/**
   * Splits major digits into groups.
   *
   * e.g.: Given the major digits "1234567", and major group size
   *  configured to 3 digits, the result would be "1 234 567"
   *
   * @param string majorDigits The major digits to be grouped
   *
   * @return string The grouped major digits
   */
  splitMajorGroups(digit: string): Array<string> | string {
    if (!this.numberSpecification.isGroupingUsed()) {
      return digit;
    }

// Reverse the major digits, since they are grouped from the right.
    const majorDigits = digit.split('').reverse();

// Group the major digits.
    let groups = [];
    groups.push(
      majorDigits.splice(0, this.numberSpecification.getPrimaryGroupSize()),
    );
    while (majorDigits.length) {
      groups.push(
        majorDigits.splice(0, this.numberSpecification.getSecondaryGroupSize()),
      );
    }

// Reverse back the digits and the groups
    groups = groups.reverse();
    const newGroups: Array<string> = [];
    groups.forEach((group) => {
      newGroups.push(group.reverse().join(''));
    });

// Reconstruct the major digits.
    return newGroups.join(GROUP_SEPARATOR_PLACEHOLDER);
  }

/**
   * Adds or remove trailing zeroes, depending on specified min and max fraction digits numbers.
   *
   * @param string minorDigits Digits to be adjusted with (trimmed or padded) zeroes
   *
   * @return string The adjusted minor digits
   */
  adjustMinorDigitsZeroes(minorDigits: string): string {
    let digit = minorDigits;

if (digit.length > this.numberSpecification.getMaxFractionDigits()) {
      // Strip any trailing zeroes.
      digit = digit.replace(/0+$/, '');
    }

if (digit.length < this.numberSpecification.getMinFractionDigits()) {
      // Re-add needed zeroes
      digit = digit.padEnd(
        this.numberSpecification.getMinFractionDigits(),
        '0',
      );
    }

return digit;
  }

/**
   * Get the CLDR formatting pattern.
   *
   * @see http://cldr.unicode.org/translation/number-patterns
   *
   * @param bool isNegative If true, the negative pattern
   * will be returned instead of the positive one
   *
   * @return string The CLDR formatting pattern
   */
  getCldrPattern(isNegative: boolean): string {
    if (isNegative) {
      return this.numberSpecification.getNegativePattern();
    }

return this.numberSpecification.getPositivePattern();
  }

/**
   * Replace placeholder number symbols with relevant numbering system's symbols.
   *
   * @param string number
   *                       The number to process
   *
   * @return string
   *                The number with replaced symbols
   */
  replaceSymbols(number: string): string {
    const symbols = this.numberSpecification.getSymbol();

const map: Record<string, any> = {};
    map[DECIMAL_SEPARATOR_PLACEHOLDER] = symbols.getDecimal();
    map[GROUP_SEPARATOR_PLACEHOLDER] = symbols.getGroup();
    map[MINUS_SIGN_PLACEHOLDER] = symbols.getMinusSign();
    map[PERCENT_SYMBOL_PLACEHOLDER] = symbols.getPercentSign();
    map[PLUS_SIGN_PLACEHOLDER] = symbols.getPlusSign();

return this.strtr(number, map);
  }

/**
   * strtr() for JavaScript
   * Translate characters or replace substrings
   *
   * @param str
   *  String to parse
   * @param pairs
   *  Hash of ('from' => 'to', ...).
   *
   * @return string
   */
  strtr(str: string, pairs: Record<string, any>): string {
    const substrs = Object.keys(pairs).map(escapeRE);

return str
      .split(RegExp(`(${substrs.join('|')})`))
      .map((part: string) => pairs[part] || part)
      .join('');
  }

/**
   * Add missing placeholders to the number using the passed CLDR pattern.
   *
   * Missing placeholders can be the percent sign, currency symbol, etc.
   *
   * e.g. with a currency CLDR pattern:
   *  - Passed number (partially formatted): 1,234.567
   *  - Returned number: 1,234.567 ¤
   *  ("¤" symbol is the currency symbol placeholder)
   *
   * @see http://cldr.unicode.org/translation/number-patterns
   *
   * @param formattedNumber
   *  Number to process
   * @param pattern
   *  CLDR formatting pattern to use
   *
   * @return string
   */
  addPlaceholders(formattedNumber: string, pattern: string): string {
    /*
     * Regex groups explanation:
     * #          : literal "#" character. Once.
     * (,#+)*     : any other "#" characters group, separated by ",". Zero to infinity times.
     * 0          : literal "0" character. Once.
     * (\.[0#]+)* : any combination of "0" and "#" characters groups, separated by '.'.
     *              Zero to infinity times.
     */
    return pattern.replace(/#?(,#+)*0(\.[0#]+)*/, formattedNumber);
  }

/**
   * Perform some more specific replacements.
   *
   * Specific replacements are needed when number specification is extended.
   * For instance, prices have an extended number specification in order to
   * add currency symbol to the formatted number.
   *
   * @param string formattedNumber
   *
   * @return mixed
   */
  performSpecificReplacements(formattedNumber: string): string {
    if (this.numberSpecification instanceof PriceSpecification) {
      return formattedNumber
        .split(CURRENCY_SYMBOL_PLACEHOLDER)
        .join(this.numberSpecification.getCurrencySymbol());
    }

return formattedNumber;
  }

static build(specifications: Record<string, any>): NumberFormatter {
    let symbol;

if (undefined !== specifications.numberSymbols) {
      // @ts-ignore-next-line
      symbol = new NumberSymbol(...specifications.numberSymbols);
    } else {
      // @ts-ignore-next-line
      symbol = new NumberSymbol(...specifications.symbol);
    }

let specification;

if (specifications.currencySymbol) {
      specification = new PriceSpecification(
        specifications.positivePattern,
        specifications.negativePattern,
        symbol,
        parseInt(specifications.maxFractionDigits, 10),
        parseInt(specifications.minFractionDigits, 10),
        specifications.groupingUsed,
        specifications.primaryGroupSize,
        specifications.secondaryGroupSize,
        specifications.currencySymbol,
        specifications.currencyCode,
      );
    } else {
      specification = new NumberSpecification(
        specifications.positivePattern,
        specifications.negativePattern,
        symbol,
        parseInt(specifications.maxFractionDigits, 10),
        parseInt(specifications.minFractionDigits, 10),
        specifications.groupingUsed,
        specifications.primaryGroupSize,
        specifications.secondaryGroupSize,
      );
    }

return new NumberFormatter(specification);
  }
}

export default NumberFormatter;

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?? specifications | ??? Delete
?? index.ts | ?? Edit | ??? Delete
?? number-formatter.ts | ?? Edit | ??? Delete
?? number-symbol.ts | ?? Edit | ??? Delete