import { __exports as utils } from '../../../../../../_virtual/utils2.mjs';

var hasRequiredUtils;
function requireUtils() {
  if (hasRequiredUtils) return utils;
  hasRequiredUtils = 1;
  (function (exports) {

    exports.isInteger = num => {
      if (typeof num === 'number') {
        return Number.isInteger(num);
      }
      if (typeof num === 'string' && num.trim() !== '') {
        return Number.isInteger(Number(num));
      }
      return false;
    };

    /**
     * Find a node of the given type
     */

    exports.find = (node, type) => node.nodes.find(node => node.type === type);

    /**
     * Find a node of the given type
     */

    exports.exceedsLimit = (min, max, step = 1, limit) => {
      if (limit === false) return false;
      if (!exports.isInteger(min) || !exports.isInteger(max)) return false;
      return (Number(max) - Number(min)) / Number(step) >= limit;
    };

    /**
     * Escape the given node with '\\' before node.value
     */

    exports.escapeNode = (block, n = 0, type) => {
      const node = block.nodes[n];
      if (!node) return;
      if (type && node.type === type || node.type === 'open' || node.type === 'close') {
        if (node.escaped !== true) {
          node.value = '\\' + node.value;
          node.escaped = true;
        }
      }
    };

    /**
     * Returns true if the given brace node should be enclosed in literal braces
     */

    exports.encloseBrace = node => {
      if (node.type !== 'brace') return false;
      if (node.commas >> 0 + node.ranges >> 0 === 0) {
        node.invalid = true;
        return true;
      }
      return false;
    };

    /**
     * Returns true if a brace node is invalid.
     */

    exports.isInvalidBrace = block => {
      if (block.type !== 'brace') return false;
      if (block.invalid === true || block.dollar) return true;
      if (block.commas >> 0 + block.ranges >> 0 === 0) {
        block.invalid = true;
        return true;
      }
      if (block.open !== true || block.close !== true) {
        block.invalid = true;
        return true;
      }
      return false;
    };

    /**
     * Returns true if a node is an open or close node
     */

    exports.isOpenOrClose = node => {
      if (node.type === 'open' || node.type === 'close') {
        return true;
      }
      return node.open === true || node.close === true;
    };

    /**
     * Reduce an array of text nodes.
     */

    exports.reduce = nodes => nodes.reduce((acc, node) => {
      if (node.type === 'text') acc.push(node.value);
      if (node.type === 'range') node.type = 'text';
      return acc;
    }, []);

    /**
     * Flatten an array
     */

    exports.flatten = (...args) => {
      const result = [];
      const flat = arr => {
        for (let i = 0; i < arr.length; i++) {
          const ele = arr[i];
          if (Array.isArray(ele)) {
            flat(ele);
            continue;
          }
          if (ele !== undefined) {
            result.push(ele);
          }
        }
        return result;
      };
      flat(args);
      return result;
    };
  })(utils);
  return utils;
}

export { requireUtils as __require };
