"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.needsWhitespace = needsWhitespace;
exports.needsWhitespaceBefore = needsWhitespaceBefore;
exports.needsWhitespaceAfter = needsWhitespaceAfter;
exports.needsParens = needsParens;

var whitespace = _interopRequireWildcard(require("./whitespace"));

var parens = _interopRequireWildcard(require("./parentheses"));

var t = _interopRequireWildcard(require("@babel/types"));

function _getRequireWildcardCache() { if (typeof WeakMap !== "function") return null; var cache = new WeakMap(); _getRequireWildcardCache = function () { return cache; }; return cache; }

function _interopRequireWildcard(obj) { if (obj && obj.__esModule) { return obj; } if (obj === null || typeof obj !== "object" && typeof obj !== "function") { return { default: obj }; } var cache = _getRequireWildcardCache(); if (cache && cache.has(obj)) { return cache.get(obj); } var newObj = {}; var hasPropertyDescriptor = Object.defineProperty && Object.getOwnPropertyDescriptor; for (var key in obj) { if (Object.prototype.hasOwnProperty.call(obj, key)) { var desc = hasPropertyDescriptor ? Object.getOwnPropertyDescriptor(obj, key) : null; if (desc && (desc.get || desc.set)) { Object.defineProperty(newObj, key, desc); } else { newObj[key] = obj[key]; } } } newObj.default = obj; if (cache) { cache.set(obj, newObj); } return newObj; }

function expandAliases(obj) {
  const newObj = {};

  function add(type, func) {
    const fn = newObj[type];
    newObj[type] = fn ? function (node, parent, stack) {
      const result = fn(node, parent, stack);
      return result == null ? func(node, parent, stack) : result;
    } : func;
  }

  for (const type of Object.keys(obj)) {
    const aliases = t.FLIPPED_ALIAS_KEYS[type];

    if (aliases) {
      for (const alias of aliases) {
        add(alias, obj[type]);
      }
    } else {
      add(type, obj[type]);
    }
  }

  return newObj;
}

const expandedParens = expandAliases(parens);
const expandedWhitespaceNodes = expandAliases(whitespace.nodes);
const expandedWhitespaceList = expandAliases(whitespace.list);

function find(obj, node, parent, printStack) {
  const fn = obj[node.type];
  return fn ? fn(node, parent, printStack) : null;
}

function isOrHasCallExpression(node) {
  if (t.isCallExpression(node)) {
    return true;
  }

  if (t.isMemberExpression(node)) {
    return isOrHasCallExpression(node.object) || !node.computed && isOrHasCallExpression(node.property);
  } else {
    return false;
  }
}

function needsWhitespace(node, parent, type) {
  if (!node) return 0;

  if (t.isExpressionStatement(node)) {
    node = node.expression;
  }

  let linesInfo = find(expandedWhitespaceNodes, node, parent);

  if (!linesInfo) {
    const items = find(expandedWhitespaceList, node, parent);

    if (items) {
      for (let i = 0; i < items.length; i++) {
        linesInfo = needsWhitespace(items[i], node, type);
        if (linesInfo) break;
      }
    }
  }

  if (typeof linesInfo === "object" && linesInfo !== null) {
    return linesInfo[type] || 0;
  }

  return 0;
}

function needsWhitespaceBefore(node, parent) {
  return needsWhitespace(node, parent, "before");
}

function needsWhitespaceAfter(node, parent) {
  return needsWhitespace(node, parent, "after");
}

function needsParens(node, parent, printStack) {
  if (!parent) return false;

  if (t.isNewExpression(parent) && parent.callee === node) {
    if (isOrHasCallExpression(node)) return true;
  }

  if (t.isLogicalExpression(node) && parent.operator === "??") return true;
  return find(expandedParens, node, parent, printStack);
}