"use strict";

const isStandardSyntaxRule = require("../utils/isStandardSyntaxRule");
const parseSelector = require("../utils/parseSelector");
const report = require("../utils/report");
const styleSearch = require("style-search");

module.exports = function(options) {
  options.root.walkRules(rule => {
    if (!isStandardSyntaxRule(rule)) {
      return;
    }

    if (
      rule.selector.indexOf("[") === -1 ||
      rule.selector.indexOf("=") === -1
    ) {
      return;
    }

    let hasFixed = false;
    const selector = rule.raws.selector
      ? rule.raws.selector.raw
      : rule.selector;

    const fixedSelector = parseSelector(
      selector,
      options.result,
      rule,
      selectorTree => {
        selectorTree.walkAttributes(attributeNode => {
          const operator = attributeNode.operator;

          if (!operator) {
            return;
          }

          const attributeNodeString = attributeNode.toString();

          styleSearch(
            { source: attributeNodeString, target: operator },
            match => {
              const index = options.checkBeforeOperator
                ? match.startIndex
                : match.endIndex - 1;

              checkOperator(
                attributeNodeString,
                index,
                rule,
                attributeNode,
                operator
              );
            }
          );
        });
      }
    );

    if (hasFixed) {
      if (!rule.raws.selector) {
        rule.selector = fixedSelector;
      } else {
        rule.raws.selector.raw = fixedSelector;
      }
    }

    function checkOperator(source, index, node, attributeNode, operator) {
      options.locationChecker({
        source,
        index,
        err: m => {
          if (options.fix && options.fix(attributeNode)) {
            hasFixed = true;

            return;
          }

          report({
            message: m.replace(
              options.checkBeforeOperator
                ? operator[0]
                : operator[operator.length - 1],
              operator
            ),
            node,
            index: attributeNode.sourceIndex + index,
            result: options.result,
            ruleName: options.checkedRuleName
          });
        }
      });
    }
  });
};