"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports["default"] = rule;
exports.ruleName = exports.meta = exports.messages = void 0;
var _stylelint = require("stylelint");
var _optionsMatches = _interopRequireDefault(require("stylelint/lib/utils/optionsMatches"));
var _utils = require("../../utils");
function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { "default": obj }; }
var ruleName = (0, _utils.namespace)("selector-no-redundant-nesting-selector");
exports.ruleName = ruleName;
var messages = _stylelint.utils.ruleMessages(ruleName, {
  rejected: "Unnecessary nesting selector (&)"
});
exports.messages = messages;
var meta = {
  url: (0, _utils.ruleUrl)(ruleName)
};
exports.meta = meta;
function rule(actual, options) {
  return function (root, result) {
    var validOptions = _stylelint.utils.validateOptions(result, ruleName, {
      actual: actual
    }, {
      actual: options,
      possible: {
        ignoreKeywords: [_utils.isString, _utils.isRegExp]
      },
      optional: true
    });
    if (!validOptions) {
      return;
    }
    root.walkRules(/&/, function (rule) {
      (0, _utils.parseSelector)(rule.selector, result, rule, function (fullSelector) {
        // "Ampersand followed by a combinator followed by non-combinator non-ampersand and not the selector end"
        fullSelector.walkNesting(function (node) {
          var prev = node.prev();
          if (prev || (0, _utils.hasNestedSibling)(node)) {
            return;
          }
          var next = node.next();
          if (!next && node.parent.parent.nodes.length > 1) {
            return;
          }
          if (next && next.type !== "combinator") {
            return;
          }
          var nextNext = next ? next.next() : null;
          if ((0, _utils.isType)(nextNext, "tag") && (0, _optionsMatches["default"])(options, "ignoreKeywords", nextNext.value.trim()) || (0, _utils.isType)(nextNext, "combinator")) {
            return;
          }
          _stylelint.utils.report({
            ruleName: ruleName,
            result: result,
            node: rule,
            message: messages.rejected,
            index: node.sourceIndex
          });
        });
      });
    });
  };
}
rule.ruleName = ruleName;
rule.messages = messages;
rule.meta = meta;