text: 'use strict';
  
  const valueParser = require('postcss-value-parser');
  
  const atRuleParamIndex = require('../../utils/atRuleParamIndex');
  const declarationValueIndex = require('../../utils/declarationValueIndex');
  const report = require('../../utils/report');
  const ruleMessages = require('../../utils/ruleMessages');
  const validateOptions = require('../../utils/validateOptions');
  
  const ruleName = 'number-no-trailing-zeros';
  
  const messages = ruleMessages(ruleName, {
  	rejected: 'Unexpected trailing zero(s)',
  });
  
  /** @type {import('stylelint').Rule} */
  const rule = (primary, _secondaryOptions, context) => {
  	return (root, result) => {
  		const validOptions = validateOptions(result, ruleName, { actual: primary });
  
  		if (!validOptions) {
  			return;
  		}
  
  		root.walkAtRules((atRule) => {
  			if (atRule.name.toLowerCase() === 'import') {
  				return;
  			}
  
  			check(atRule, atRule.params);
  		});
  
  		root.walkDecls((decl) => check(decl, decl.value));
  
  		/**
  		 * @param {import('postcss').AtRule | import('postcss').Declaration} node
  		 * @param {string} value
  		 */
  		function check(node, value) {
  			/** @type {Array<{ startIndex: number, endIndex: number }>} */
  			const fixPositions = [];
  
  			// Get out quickly if there are no periods
  			if (!value.includes('.')) {
  				return;
  			}
  
  			valueParser(value).walk((valueNode) => {
  				// Ignore `url` function
  				if (valueNode.type === 'function' && valueNode.value.toLowerCase() === 'url') {
  					return false;
  				}
  
  				// Ignore strings, comments, etc
  				if (valueNode.type !== 'word') {
  					return;
  				}
  
  				const match = /\.(\d{0,100}?)(0+)(?:\D|$)/.exec(valueNode.value);
  
  				// match[1] is any numbers between the decimal and our trailing zero, could be empty
  				// match[2] is our trailing zero(s)
  				if (match === null) {
  					return;
  				}
  
  				// our index is:
  				//  the index of our valueNode +
  				//  the index of our match +
  				//  1 for our decimal +
  				//  the length of our potential non-zero number match (match[1])
  				const index = valueNode.sourceIndex + match.index + 1 + match[1].length;
  
  				// our startIndex is identical to our index except when we have only
  				// trailing zeros after our decimal. in that case we don't need the decimal
  				// either so we move our index back by 1.
  				const startIndex = match[1].length > 0 ? index : index - 1;
  
  				// our end index is our original index + the length of our trailing zeros
  				const endIndex = index + match[2].length;
  
  				if (context.fix) {
  					fixPositions.unshift({
  						startIndex,
  						endIndex,
  					});
  
  					return;
  				}
  
  				const baseIndex =
  					node.type === 'atrule' ? atRuleParamIndex(node) : declarationValueIndex(node);
  
  				report({
  					message: messages.rejected,
  					node,
  					// this is the index of the _first_ trailing zero
  					index: baseIndex + index,
  					result,
  					ruleName,
  				});
  			});
  
  			if (fixPositions.length) {
  				for (const fixPosition of fixPositions) {
  					const startIndex = fixPosition.startIndex;
  					const endIndex = fixPosition.endIndex;
  
  					if (node.type === 'atrule') {
  						node.params = removeTrailingZeros(node.params, startIndex, endIndex);
  					} else {
  						node.value = removeTrailingZeros(node.value, startIndex, endIndex);
  					}
  				}
  			}
  		}
  	};
  };
  
  /**
   * @param {string} input
   * @param {number} startIndex
   * @param {number} endIndex
   * @returns {string}
   */
  function removeTrailingZeros(input, startIndex, endIndex) {
  	return input.slice(0, startIndex) + input.slice(endIndex);
  }
  
  rule.ruleName = ruleName;
  rule.messages = messages;
  module.exports = rule;
  