text: 'use strict';
  
  const atRuleParamIndex = require('../../utils/atRuleParamIndex');
  const findMediaOperator = require('../findMediaOperator');
  const report = require('../../utils/report');
  const ruleMessages = require('../../utils/ruleMessages');
  const validateOptions = require('../../utils/validateOptions');
  const whitespaceChecker = require('../../utils/whitespaceChecker');
  
  const ruleName = 'media-feature-range-operator-space-before';
  
  const messages = ruleMessages(ruleName, {
  	expectedBefore: () => 'Expected single space before range operator',
  	rejectedBefore: () => 'Unexpected whitespace before range operator',
  });
  
  /** @type {import('stylelint').Rule} */
  const rule = (primary, _secondaryOptions, context) => {
  	const checker = whitespaceChecker('space', primary, messages);
  
  	return (root, result) => {
  		const validOptions = validateOptions(result, ruleName, {
  			actual: primary,
  			possible: ['always', 'never'],
  		});
  
  		if (!validOptions) {
  			return;
  		}
  
  		root.walkAtRules(/^media$/i, (atRule) => {
  			/** @type {number[]} */
  			const fixOperatorIndices = [];
  			/** @type {((index: number) => void) | null} */
  			const fix = context.fix ? (index) => fixOperatorIndices.push(index) : null;
  
  			findMediaOperator(atRule, (match, params, node) => {
  				checkBeforeOperator(match, params, node, fix);
  			});
  
  			if (fixOperatorIndices.length) {
  				let params = atRule.raws.params ? atRule.raws.params.raw : atRule.params;
  
  				fixOperatorIndices
  					.sort((a, b) => b - a)
  					.forEach((index) => {
  						const beforeOperator = params.slice(0, index);
  						const afterOperator = params.slice(index);
  
  						if (primary === 'always') {
  							params = beforeOperator.replace(/\s*$/, ' ') + afterOperator;
  						} else if (primary === 'never') {
  							params = beforeOperator.replace(/\s*$/, '') + afterOperator;
  						}
  					});
  
  				if (atRule.raws.params) {
  					atRule.raws.params.raw = params;
  				} else {
  					atRule.params = params;
  				}
  			}
  		});
  
  		/**
  		 * @param {import('style-search').StyleSearchMatch} match
  		 * @param {string} params
  		 * @param {import('postcss').AtRule} node
  		 * @param {((index: number) => void) | null} fix
  		 */
  		function checkBeforeOperator(match, params, node, fix) {
  			// The extra `+ 1` is because the match itself contains
  			// the character before the operator
  			checker.before({
  				source: params,
  				index: match.startIndex,
  				err: (m) => {
  					if (fix) {
  						fix(match.startIndex);
  
  						return;
  					}
  
  					report({
  						message: m,
  						node,
  						index: match.startIndex - 1 + atRuleParamIndex(node),
  						result,
  						ruleName,
  					});
  				},
  			});
  		}
  	};
  };
  
  rule.ruleName = ruleName;
  rule.messages = messages;
  module.exports = rule;
  