"use strict";

function _typeof(o) { "@babel/helpers - typeof"; return _typeof = "function" == typeof Symbol && "symbol" == typeof Symbol.iterator ? function (o) { return typeof o; } : function (o) { return o && "function" == typeof Symbol && o.constructor === Symbol && o !== Symbol.prototype ? "symbol" : typeof o; }, _typeof(o); }
function _classCallCheck(a, n) { if (!(a instanceof n)) throw new TypeError("Cannot call a class as a function"); }
function _defineProperties(e, r) { for (var t = 0; t < r.length; t++) { var o = r[t]; o.enumerable = o.enumerable || !1, o.configurable = !0, "value" in o && (o.writable = !0), Object.defineProperty(e, _toPropertyKey(o.key), o); } }
function _createClass(e, r, t) { return r && _defineProperties(e.prototype, r), t && _defineProperties(e, t), Object.defineProperty(e, "prototype", { writable: !1 }), e; }
function _toPropertyKey(t) { var i = _toPrimitive(t, "string"); return "symbol" == _typeof(i) ? i : i + ""; }
function _toPrimitive(t, r) { if ("object" != _typeof(t) || !t) return t; var e = t[Symbol.toPrimitive]; if (void 0 !== e) { var i = e.call(t, r || "default"); if ("object" != _typeof(i)) return i; throw new TypeError("@@toPrimitive must return a primitive value."); } return ("string" === r ? String : Number)(t); }
var traitName = "expandPair";
var mergeSort = require("../merge-sort.js");
var _require = require("../doc-utils.js"),
  getLeft = _require.getLeft,
  getRight = _require.getRight,
  pushArray = _require.pushArray;
var wrapper = require("../module-wrapper.js");
var _require2 = require("../traits.js"),
  getExpandToDefault = _require2.getExpandToDefault;
var _require3 = require("../errors.js"),
  getUnmatchedLoopException = _require3.getUnmatchedLoopException,
  getClosingTagNotMatchOpeningTag = _require3.getClosingTagNotMatchOpeningTag,
  getUnbalancedLoopException = _require3.getUnbalancedLoopException;
function getOpenCountChange(part) {
  switch (part.location) {
    case "start":
      return 1;
    case "end":
      return -1;
  }
}
function match(start, end) {
  return start != null && end != null && (start.part.location === "start" && end.part.location === "end" && start.part.value === end.part.value || end.part.value === "");
}
function transformer(traits) {
  var i = 0;
  var errors = [];
  while (i < traits.length) {
    var part = traits[i].part;
    if (part.location === "end") {
      if (i === 0) {
        traits.splice(0, 1);
        errors.push(getUnmatchedLoopException(part));
        return {
          traits: traits,
          errors: errors
        };
      }
      var endIndex = i;
      var startIndex = i - 1;
      var offseter = 1;
      if (match(traits[startIndex], traits[endIndex])) {
        traits.splice(endIndex, 1);
        traits.splice(startIndex, 1);
        return {
          errors: errors,
          traits: traits
        };
      }
      while (offseter < 50) {
        var startCandidate = traits[startIndex - offseter];
        var endCandidate = traits[endIndex + offseter];
        if (match(startCandidate, traits[endIndex])) {
          traits.splice(endIndex, 1);
          traits.splice(startIndex - offseter, 1);
          return {
            errors: errors,
            traits: traits
          };
        }
        if (match(traits[startIndex], endCandidate)) {
          traits.splice(endIndex + offseter, 1);
          traits.splice(startIndex, 1);
          return {
            errors: errors,
            traits: traits
          };
        }
        offseter++;
      }
      errors.push(getClosingTagNotMatchOpeningTag({
        tags: [traits[startIndex].part, traits[endIndex].part]
      }));
      traits.splice(endIndex, 1);
      traits.splice(startIndex, 1);
      return {
        traits: traits,
        errors: errors
      };
    }
    i++;
  }
  for (var _i2 = 0; _i2 < traits.length; _i2++) {
    var _part = traits[_i2].part;
    errors.push(getUnmatchedLoopException(_part));
  }
  return {
    traits: [],
    errors: errors
  };
}
function getPairs(traits) {
  var levelTraits = {};
  var errors = [];
  var pairs = [];
  var transformedTraits = [];
  for (var i = 0; i < traits.length; i++) {
    transformedTraits.push(traits[i]);
  }
  while (transformedTraits.length > 0) {
    var result = transformer(transformedTraits);
    pushArray(errors, result.errors);
    transformedTraits = result.traits;
  }

  // Stryker disable all : because this check makes the function return quicker
  if (errors.length > 0) {
    return {
      pairs: pairs,
      errors: errors
    };
  }
  // Stryker restore all
  var countOpen = 0;
  for (var _i3 = 0; _i3 < traits.length; _i3++) {
    var currentTrait = traits[_i3];
    var part = currentTrait.part;
    var change = getOpenCountChange(part);
    countOpen += change;
    if (change === 1) {
      levelTraits[countOpen] = currentTrait;
    } else {
      var startTrait = levelTraits[countOpen + 1];
      if (countOpen === 0) {
        pairs.push([startTrait, currentTrait]);
      }
    }
    countOpen = countOpen >= 0 ? countOpen : 0;
  }
  return {
    pairs: pairs,
    errors: errors
  };
}
var ExpandPairTrait = /*#__PURE__*/function () {
  function ExpandPairTrait() {
    _classCallCheck(this, ExpandPairTrait);
    this.name = "ExpandPairTrait";
  }
  return _createClass(ExpandPairTrait, [{
    key: "optionsTransformer",
    value: function optionsTransformer(options, docxtemplater) {
      if (docxtemplater.options.paragraphLoop) {
        pushArray(docxtemplater.fileTypeConfig.expandTags, docxtemplater.fileTypeConfig.onParagraphLoop);
      }
      this.expandTags = docxtemplater.fileTypeConfig.expandTags;
      return options;
    }
  }, {
    key: "postparse",
    value: function postparse(postparsed, _ref) {
      var _this = this;
      var getTraits = _ref.getTraits,
        _postparse = _ref.postparse,
        fileType = _ref.fileType;
      var traits = getTraits(traitName, postparsed);
      traits = traits.map(function (trait) {
        return trait || [];
      });
      traits = mergeSort(traits);
      var _getPairs = getPairs(traits),
        pairs = _getPairs.pairs,
        errors = _getPairs.errors;
      var lastRight = 0;
      var lastPair = null;
      var expandedPairs = pairs.map(function (pair) {
        var expandTo = pair[0].part.expandTo;
        if (expandTo === "auto" && fileType !== "text") {
          var result = getExpandToDefault(postparsed, pair, _this.expandTags);
          if (result.error) {
            errors.push(result.error);
          }
          expandTo = result.value;
        }
        if (!expandTo || fileType === "text") {
          var _left = pair[0].offset;
          var _right = pair[1].offset;
          if (_left < lastRight) {
            errors.push(getUnbalancedLoopException(pair, lastPair));
          }
          lastPair = pair;
          lastRight = _right;
          return [_left, _right];
        }
        var left, right;
        try {
          left = getLeft(postparsed, expandTo, pair[0].offset);
        } catch (e) {
          errors.push(e);
        }
        try {
          right = getRight(postparsed, expandTo, pair[1].offset);
        } catch (e) {
          errors.push(e);
        }
        if (left < lastRight) {
          errors.push(getUnbalancedLoopException(pair, lastPair));
        }
        lastRight = right;
        lastPair = pair;
        return [left, right];
      });

      // Stryker disable all : because this check makes the function return quicker
      if (errors.length > 0) {
        return {
          postparsed: postparsed,
          errors: errors
        };
      }
      // Stryker restore all

      var currentPairIndex = 0;
      var innerParts;
      var newParsed = postparsed.reduce(function (newParsed, part, i) {
        var inPair = currentPairIndex < pairs.length && expandedPairs[currentPairIndex][0] <= i && i <= expandedPairs[currentPairIndex][1];
        var pair = pairs[currentPairIndex];
        var expandedPair = expandedPairs[currentPairIndex];
        if (!inPair) {
          newParsed.push(part);
          return newParsed;
        }
        if (expandedPair[0] === i) {
          innerParts = [];
        }
        if (pair[0].offset !== i && pair[1].offset !== i) {
          innerParts.push(part);
        }
        if (expandedPair[1] === i) {
          var basePart = postparsed[pair[0].offset];
          basePart.subparsed = _postparse(innerParts, {
            basePart: basePart
          });
          basePart.endLindex = pair[1].part.lIndex;
          delete basePart.location;
          delete basePart.expandTo;
          newParsed.push(basePart);
          currentPairIndex++;
        }
        return newParsed;
      }, []);
      return {
        postparsed: newParsed,
        errors: errors
      };
    }
  }]);
}();
module.exports = function () {
  return wrapper(new ExpandPairTrait());
};