"use strict";

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

module.exports = function(opts) {
  opts.root.walkDecls(function(decl) {
    const indexOffset = declarationValueIndex(decl);
    const declString = decl.toString();
    const valueString = decl.toString().slice(indexOffset);

    if (valueString.indexOf("!") === -1) {
      return;
    }

    styleSearch({ source: valueString, target: "!" }, match => {
      check(declString, match.startIndex + indexOffset, decl);
    });
  });

  function check(source, index, node) {
    opts.locationChecker({
      source,
      index,
      err: m => {
        if (opts.fix && opts.fix(node, index)) {
          return;
        }

        report({
          message: m,
          node,
          index,
          result: opts.result,
          ruleName: opts.checkedRuleName
        });
      }
    });
  }
};