"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.insertText = insertText;
exports.default = void 0;

var _markdown_types = require("./markdown_types");

function ownKeys(object, enumerableOnly) { var keys = Object.keys(object); if (Object.getOwnPropertySymbols) { var symbols = Object.getOwnPropertySymbols(object); if (enumerableOnly) symbols = symbols.filter(function (sym) { return Object.getOwnPropertyDescriptor(object, sym).enumerable; }); keys.push.apply(keys, symbols); } return keys; }

function _objectSpread(target) { for (var i = 1; i < arguments.length; i++) { var source = arguments[i] != null ? arguments[i] : {}; if (i % 2) { ownKeys(Object(source), true).forEach(function (key) { _defineProperty(target, key, source[key]); }); } else if (Object.getOwnPropertyDescriptors) { Object.defineProperties(target, Object.getOwnPropertyDescriptors(source)); } else { ownKeys(Object(source)).forEach(function (key) { Object.defineProperty(target, key, Object.getOwnPropertyDescriptor(source, key)); }); } } return target; }

function _classCallCheck(instance, Constructor) { if (!(instance instanceof Constructor)) { throw new TypeError("Cannot call a class as a function"); } }

function _defineProperties(target, props) { for (var i = 0; i < props.length; i++) { var descriptor = props[i]; descriptor.enumerable = descriptor.enumerable || false; descriptor.configurable = true; if ("value" in descriptor) descriptor.writable = true; Object.defineProperty(target, descriptor.key, descriptor); } }

function _createClass(Constructor, protoProps, staticProps) { if (protoProps) _defineProperties(Constructor.prototype, protoProps); if (staticProps) _defineProperties(Constructor, staticProps); return Constructor; }

function _defineProperty(obj, key, value) { if (key in obj) { Object.defineProperty(obj, key, { value: value, enumerable: true, configurable: true, writable: true }); } else { obj[key] = value; } return obj; } /*
                                                                                                                                                                                                                   * SPDX-License-Identifier: Apache-2.0
                                                                                                                                                                                                                   *
                                                                                                                                                                                                                   * The OpenSearch Contributors require contributions made to
                                                                                                                                                                                                                   * this file be licensed under the Apache-2.0 license or a
                                                                                                                                                                                                                   * compatible open source license.
                                                                                                                                                                                                                   *
                                                                                                                                                                                                                   * Modifications Copyright OpenSearch Contributors. See
                                                                                                                                                                                                                   * GitHub history for details.
                                                                                                                                                                                                                   */ /*
                                                                                                                                                                                                                       * Licensed to Elasticsearch B.V. under one or more contributor
                                                                                                                                                                                                                       * license agreements. See the NOTICE file distributed with
                                                                                                                                                                                                                       * this work for additional information regarding copyright
                                                                                                                                                                                                                       * ownership. Elasticsearch B.V. licenses this file to you under
                                                                                                                                                                                                                       * the Apache License, Version 2.0 (the "License"); you may
                                                                                                                                                                                                                       * not use this file except in compliance with the License.
                                                                                                                                                                                                                       * You may obtain a copy of the License at
                                                                                                                                                                                                                       *
                                                                                                                                                                                                                       *    http://www.apache.org/licenses/LICENSE-2.0
                                                                                                                                                                                                                       *
                                                                                                                                                                                                                       * Unless required by applicable law or agreed to in writing,
                                                                                                                                                                                                                       * software distributed under the License is distributed on an
                                                                                                                                                                                                                       * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
                                                                                                                                                                                                                       * KIND, either express or implied.  See the License for the
                                                                                                                                                                                                                       * specific language governing permissions and limitations
                                                                                                                                                                                                                       * under the License.
                                                                                                                                                                                                                       */ // The text-formatting logic & code in this file come from
// https://github.com/github/markdown-toolbar-element/blob/main/src/index.ts
// under the following MIT license
/*
Copyright (c) 2017-2018 GitHub, Inc.

Permission is hereby granted, free of charge, to any person obtaining a copy
of this software and associated documentation files (the "Software"), to deal
in the Software without restriction, including without limitation the rights
to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
copies of the Software, and to permit persons to whom the Software is
furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all
copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
SOFTWARE.
 */

/**
 * Class for applying styles to a text editor. Accepts the HTML ID for the textarea
 * desired, and exposes the `.do(ACTION)` method for manipulating the text.
 *
 * @class MarkdownActions
 * @param {string} editorID
 */
var MarkdownActions = /*#__PURE__*/function () {
  function MarkdownActions(editorID, uiPlugins) {
    _classCallCheck(this, MarkdownActions);

    this.editorID = editorID;

    _defineProperty(this, "styles", void 0);

    /**
     * This object is in the format:
     * [nameOfAction]: {[styles to apply]}
     */
    this.styles = _objectSpread(_objectSpread({}, uiPlugins.reduce(function (mappedPlugins, plugin) {
      mappedPlugins[plugin.name] = plugin;
      return mappedPlugins;
    }, {})), {}, {
      mdBold: {
        name: 'mdBold',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '**',
          suffix: '**',
          trimFirst: true
        }
      },
      mdItalic: {
        name: 'mdItalic',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '_',
          suffix: '_',
          trimFirst: true
        }
      },
      mdQuote: {
        name: 'mdQuote',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '> ',
          multiline: true,
          surroundWithNewlines: true
        }
      },
      mdCode: {
        name: 'mdCode',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '`',
          suffix: '`',
          blockPrefix: '```',
          blockSuffix: '```'
        }
      },
      mdLink: {
        name: 'mdLink',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '[',
          suffix: '](url)',
          replaceNext: 'url',
          scanFor: 'https?://'
        }
      },
      mdUl: {
        name: 'mdUl',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '- ',
          multiline: true,
          surroundWithNewlines: true
        }
      },
      mdOl: {
        name: 'mdOl',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '1. ',
          multiline: true,
          orderedList: true
        }
      },
      mdTl: {
        name: 'mdTl',
        button: {
          label: '',
          iconType: ''
        },
        formatting: {
          prefix: '- [ ] ',
          multiline: true,
          surroundWithNewlines: true
        }
      }
    });
  }
  /**
   * .do() accepts a string and retrieves the correlating style object (defined in the
   * constructor). It passes this to applyStyle() that does the text manipulation.
   *
   * @param {string} pluginName
   * @memberof MarkdownActions
   */


  _createClass(MarkdownActions, [{
    key: "do",
    value: function _do(pluginName) {
      var plugin = this.styles[pluginName];

      if ((0, _markdown_types.isPluginWithImmediateFormatting)(plugin)) {
        this.applyStyle(plugin.formatting);
        return true;
      } else {
        return plugin;
      }
    }
    /**
     * Sets the default styling object and then superimposes the changes to make on top of
     * it. Calls the `styleSelectedText` helper function that does the heavy lifting.
     * Adapted from https://github.com/github/markdown-toolbar-element/blob/main/src/index.ts
     *
     * @param {object} incomingStyle
     * @memberof MarkdownActions
     */

  }, {
    key: "applyStyle",
    value: function applyStyle(incomingStyle) {
      var defaults = {
        prefix: '',
        suffix: '',
        blockPrefix: '',
        blockSuffix: '',
        multiline: false,
        replaceNext: '',
        prefixSpace: false,
        scanFor: '',
        surroundWithNewlines: false,
        orderedList: false,
        trimFirst: false
      };

      var outgoingStyle = _objectSpread(_objectSpread({}, defaults), incomingStyle);

      var editor = document.getElementById(this.editorID);

      if (editor) {
        editor.focus();
        styleSelectedText(editor, outgoingStyle);
      }
    }
  }]);

  return MarkdownActions;
}();
/**
 * The following helper functions and types were copied from the GitHub Markdown Toolbar
 * Element project. The project is MIT-licensed. See it here:
 * https://github.com/github/markdown-toolbar-element
 */


function isMultipleLines(string) {
  return string.trim().split('\n').length > 1;
}

function repeat(string, n) {
  return Array(n + 1).join(string);
}

function wordSelectionStart(text, i) {
  var index = i;

  while (text[index] && text[index - 1] != null && !text[index - 1].match(/\s/)) {
    index--;
  }

  return index;
}

function wordSelectionEnd(text, i, multiline) {
  var index = i;
  var breakpoint = multiline ? /\n/ : /\s/;

  while (text[index] && !text[index].match(breakpoint)) {
    index++;
  }

  return index;
}

var MAX_TRIES = 10;
var TRY_TIMEOUT = 10;
/*ms*/
// modified from https://github.com/github/markdown-toolbar-element/blob/main/src/index.ts

function insertText(textarea, _ref) {
  var text = _ref.text,
      selectionStart = _ref.selectionStart,
      selectionEnd = _ref.selectionEnd;
  var originalSelectionStart = textarea.selectionStart;
  var before = textarea.value.slice(0, originalSelectionStart);
  var after = textarea.value.slice(textarea.selectionEnd); // configuration modal/dialog will continue intercepting focus in Safari
  // need to wait until the textarea can receive focus

  var tries = 0;

  var insertText = function insertText() {
    var insertResult = document.execCommand('insertText', false, text);

    if (insertResult === false) {
      /**
       * Fallback for Firefox; this kills undo/redo but at least updates the value
       *
       * Note that we're using the native HTMLTextAreaElement.set() method to play nicely with
       * React's synthetic event system.
       * https://hustle.bizongo.in/simulate-react-on-change-on-controlled-components-baa336920e04
       */
      var inputEvent = new Event('input', {
        bubbles: true
      });
      var nativeInputValueSetter = Object.getOwnPropertyDescriptor(window.HTMLTextAreaElement.prototype, 'value').set;
      nativeInputValueSetter.call(textarea, before + text + after);
      textarea.dispatchEvent(inputEvent);
    }

    if (selectionStart != null && selectionEnd != null) {
      textarea.setSelectionRange(selectionStart, selectionEnd);
    } else {
      textarea.setSelectionRange(originalSelectionStart, textarea.selectionEnd);
    }
  };

  var focusTextarea = function focusTextarea() {
    textarea.focus();

    if (document.activeElement === textarea) {
      insertText();
    } else if (++tries === MAX_TRIES) {
      insertText();
    } else {
      setTimeout(focusTextarea, TRY_TIMEOUT);
    }
  };

  focusTextarea();
} // from https://github.com/github/markdown-toolbar-element/blob/main/src/index.ts


function styleSelectedText(textarea, styleArgs) {
  var text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
  var result;

  if (styleArgs.orderedList) {
    result = orderedList(textarea);
  } else if (styleArgs.multiline && isMultipleLines(text)) {
    result = multilineStyle(textarea, styleArgs);
  } else {
    result = blockStyle(textarea, styleArgs);
  }

  insertText(textarea, result);
}

function expandSelectedText(textarea, prefixToUse, suffixToUse) {
  var multiline = arguments.length > 3 && arguments[3] !== undefined ? arguments[3] : false;

  if (textarea.selectionStart === textarea.selectionEnd) {
    textarea.selectionStart = wordSelectionStart(textarea.value, textarea.selectionStart);
    textarea.selectionEnd = wordSelectionEnd(textarea.value, textarea.selectionEnd, multiline);
  } else {
    var expandedSelectionStart = textarea.selectionStart - prefixToUse.length;
    var expandedSelectionEnd = textarea.selectionEnd + suffixToUse.length;
    var beginsWithPrefix = textarea.value.slice(expandedSelectionStart, textarea.selectionStart) === prefixToUse;
    var endsWithSuffix = textarea.value.slice(textarea.selectionEnd, expandedSelectionEnd) === suffixToUse;

    if (beginsWithPrefix && endsWithSuffix) {
      textarea.selectionStart = expandedSelectionStart;
      textarea.selectionEnd = expandedSelectionEnd;
    }
  }

  return textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
}

function newlinesToSurroundSelectedText(textarea) {
  var beforeSelection = textarea.value.slice(0, textarea.selectionStart);
  var afterSelection = textarea.value.slice(textarea.selectionEnd);
  var breaksBefore = beforeSelection.match(/\n*$/);
  var breaksAfter = afterSelection.match(/^\n*/);
  var newlinesBeforeSelection = breaksBefore ? breaksBefore[0].length : 0;
  var newlinesAfterSelection = breaksAfter ? breaksAfter[0].length : 0;
  var newlinesToAppend;
  var newlinesToPrepend;

  if (beforeSelection.match(/\S/) && newlinesBeforeSelection < 2) {
    newlinesToAppend = repeat('\n', 2 - newlinesBeforeSelection);
  }

  if (afterSelection.match(/\S/) && newlinesAfterSelection < 2) {
    newlinesToPrepend = repeat('\n', 2 - newlinesAfterSelection);
  }

  if (newlinesToAppend == null) {
    newlinesToAppend = '';
  }

  if (newlinesToPrepend == null) {
    newlinesToPrepend = '';
  }

  return {
    newlinesToAppend: newlinesToAppend,
    newlinesToPrepend: newlinesToPrepend
  };
}

function blockStyle(textarea, arg) {
  var newlinesToAppend;
  var newlinesToPrepend;
  var prefix = arg.prefix,
      suffix = arg.suffix,
      blockPrefix = arg.blockPrefix,
      blockSuffix = arg.blockSuffix,
      replaceNext = arg.replaceNext,
      prefixSpace = arg.prefixSpace,
      scanFor = arg.scanFor,
      surroundWithNewlines = arg.surroundWithNewlines;
  var originalSelectionStart = textarea.selectionStart;
  var originalSelectionEnd = textarea.selectionEnd;
  var selectedText = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
  var prefixToUse = isMultipleLines(selectedText) && blockPrefix.length > 0 ? "".concat(blockPrefix, "\n") : prefix;
  var suffixToUse = isMultipleLines(selectedText) && blockSuffix.length > 0 ? "\n".concat(blockSuffix) : suffix;

  if (prefixSpace) {
    var beforeSelection = textarea.value[textarea.selectionStart - 1];

    if (textarea.selectionStart !== 0 && beforeSelection != null && !beforeSelection.match(/\s/)) {
      prefixToUse = " ".concat(prefixToUse);
    }
  }

  selectedText = expandSelectedText(textarea, prefixToUse, suffixToUse, arg.multiline);
  var selectionStart = textarea.selectionStart;
  var selectionEnd = textarea.selectionEnd;
  var hasReplaceNext = replaceNext.length > 0 && suffixToUse.indexOf(replaceNext) > -1 && selectedText.length > 0;

  if (surroundWithNewlines) {
    var ref = newlinesToSurroundSelectedText(textarea);
    newlinesToAppend = ref.newlinesToAppend;
    newlinesToPrepend = ref.newlinesToPrepend;
    prefixToUse = newlinesToAppend + prefix;
    suffixToUse += newlinesToPrepend;
  }

  if (selectedText.startsWith(prefixToUse) && selectedText.endsWith(suffixToUse)) {
    var replacementText = selectedText.slice(prefixToUse.length, selectedText.length - suffixToUse.length);

    if (originalSelectionStart === originalSelectionEnd) {
      var position = originalSelectionStart - prefixToUse.length;
      position = Math.max(position, selectionStart);
      position = Math.min(position, selectionStart + replacementText.length);
      selectionStart = selectionEnd = position;
    } else {
      selectionEnd = selectionStart + replacementText.length;
    }

    return {
      text: replacementText,
      selectionStart: selectionStart,
      selectionEnd: selectionEnd
    };
  } else if (!hasReplaceNext) {
    var _replacementText = prefixToUse + selectedText + suffixToUse;

    selectionStart = originalSelectionStart + prefixToUse.length;
    selectionEnd = originalSelectionEnd + prefixToUse.length;
    var whitespaceEdges = selectedText.match(/^\s*|\s*$/g);

    if (arg.trimFirst && whitespaceEdges) {
      var leadingWhitespace = whitespaceEdges[0] || '';
      var trailingWhitespace = whitespaceEdges[1] || '';
      _replacementText = leadingWhitespace + prefixToUse + selectedText.trim() + suffixToUse + trailingWhitespace;
      selectionStart += leadingWhitespace.length;
      selectionEnd -= trailingWhitespace.length;
    }

    return {
      text: _replacementText,
      selectionStart: selectionStart,
      selectionEnd: selectionEnd
    };
  } else if (scanFor.length > 0 && selectedText.match(scanFor)) {
    suffixToUse = suffixToUse.replace(replaceNext, selectedText);

    var _replacementText2 = prefixToUse + suffixToUse;

    selectionStart = selectionEnd = selectionStart + prefixToUse.length;
    return {
      text: _replacementText2,
      selectionStart: selectionStart,
      selectionEnd: selectionEnd
    };
  } else {
    var _replacementText3 = prefixToUse + selectedText + suffixToUse;

    selectionStart = selectionStart + prefixToUse.length + selectedText.length + suffixToUse.indexOf(replaceNext);
    selectionEnd = selectionStart + replaceNext.length;
    return {
      text: _replacementText3,
      selectionStart: selectionStart,
      selectionEnd: selectionEnd
    };
  }
}

function multilineStyle(textarea, arg) {
  var prefix = arg.prefix,
      suffix = arg.suffix,
      surroundWithNewlines = arg.surroundWithNewlines;
  var text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
  var selectionStart = textarea.selectionStart;
  var selectionEnd = textarea.selectionEnd;
  var lines = text.split('\n');
  var undoStyle = lines.every(function (line) {
    return line.startsWith(prefix) && line.endsWith(suffix);
  });

  if (undoStyle) {
    text = lines.map(function (line) {
      return line.slice(prefix.length, line.length - suffix.length);
    }).join('\n');
    selectionEnd = selectionStart + text.length;
  } else {
    text = lines.map(function (line) {
      return prefix + line + suffix;
    }).join('\n');

    if (surroundWithNewlines) {
      var _newlinesToSurroundSe = newlinesToSurroundSelectedText(textarea),
          newlinesToAppend = _newlinesToSurroundSe.newlinesToAppend,
          newlinesToPrepend = _newlinesToSurroundSe.newlinesToPrepend;

      selectionStart += newlinesToAppend.length;
      selectionEnd = selectionStart + text.length;
      text = newlinesToAppend + text + newlinesToPrepend;
    }
  }

  return {
    text: text,
    selectionStart: selectionStart,
    selectionEnd: selectionEnd
  };
}

function orderedList(textarea) {
  var orderedListRegex = /^\d+\.\s+/;
  var noInitialSelection = textarea.selectionStart === textarea.selectionEnd;
  var selectionEnd;
  var selectionStart;
  var text = textarea.value.slice(textarea.selectionStart, textarea.selectionEnd);
  var textToUnstyle = text;
  var lines = text.split('\n');
  var startOfLine;
  var endOfLine;

  if (noInitialSelection) {
    var linesBefore = textarea.value.slice(0, textarea.selectionStart).split(/\n/);
    startOfLine = textarea.selectionStart - linesBefore[linesBefore.length - 1].length;
    endOfLine = wordSelectionEnd(textarea.value, textarea.selectionStart, true);
    textToUnstyle = textarea.value.slice(startOfLine, endOfLine);
  }

  var linesToUnstyle = textToUnstyle.split('\n');
  var undoStyling = linesToUnstyle.every(function (line) {
    return orderedListRegex.test(line);
  });

  if (undoStyling) {
    lines = linesToUnstyle.map(function (line) {
      return line.replace(orderedListRegex, '');
    });
    text = lines.join('\n');

    if (noInitialSelection && startOfLine && endOfLine) {
      var lengthDiff = linesToUnstyle[0].length - lines[0].length;
      selectionStart = selectionEnd = textarea.selectionStart - lengthDiff;
      textarea.selectionStart = startOfLine;
      textarea.selectionEnd = endOfLine;
    }
  } else {
    lines = function () {
      var i;
      var len;
      var index;
      var results = [];

      for (index = i = 0, len = lines.length; i < len; index = ++i) {
        var line = lines[index];
        results.push("".concat(index + 1, ". ").concat(line));
      }

      return results;
    }();

    text = lines.join('\n');

    var _newlinesToSurroundSe2 = newlinesToSurroundSelectedText(textarea),
        newlinesToAppend = _newlinesToSurroundSe2.newlinesToAppend,
        newlinesToPrepend = _newlinesToSurroundSe2.newlinesToPrepend;

    selectionStart = textarea.selectionStart + newlinesToAppend.length;
    selectionEnd = selectionStart + text.length;
    if (noInitialSelection) selectionStart = selectionEnd;
    text = newlinesToAppend + text + newlinesToPrepend;
  }

  return {
    text: text,
    selectionStart: selectionStart,
    selectionEnd: selectionEnd
  };
}

var _default = MarkdownActions;
exports.default = _default;