"use strict";

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.Typewriter = void 0;
var _ui = require("@mirai/ui");
var _propTypes = _interopRequireDefault(require("prop-types"));
var _react = _interopRequireWildcard(require("react"));
var style = _interopRequireWildcard(require("./Typewriter.module.css"));
const _excluded = ["children", "disabled", "onTyped"];
function _interopRequireWildcard(e, t) { if ("function" == typeof WeakMap) var r = new WeakMap(), n = new WeakMap(); return (_interopRequireWildcard = function (e, t) { if (!t && e && e.__esModule) return e; var o, i, f = { __proto__: null, default: e }; if (null === e || "object" != typeof e && "function" != typeof e) return f; if (o = t ? n : r) { if (o.has(e)) return o.get(e); o.set(e, f); } for (const t in e) "default" !== t && {}.hasOwnProperty.call(e, t) && ((i = (o = Object.defineProperty) && Object.getOwnPropertyDescriptor(e, t)) && (i.get || i.set) ? o(f, t, i) : f[t] = e[t]); return f; })(e, t); }
function _interopRequireDefault(e) { return e && e.__esModule ? e : { default: e }; }
function _extends() { return _extends = Object.assign ? Object.assign.bind() : function (n) { for (var e = 1; e < arguments.length; e++) { var t = arguments[e]; for (var r in t) ({}).hasOwnProperty.call(t, r) && (n[r] = t[r]); } return n; }, _extends.apply(null, arguments); }
function _objectWithoutProperties(e, t) { if (null == e) return {}; var o, r, i = _objectWithoutPropertiesLoose(e, t); if (Object.getOwnPropertySymbols) { var n = Object.getOwnPropertySymbols(e); for (r = 0; r < n.length; r++) o = n[r], -1 === t.indexOf(o) && {}.propertyIsEnumerable.call(e, o) && (i[o] = e[o]); } return i; }
function _objectWithoutPropertiesLoose(r, e) { if (null == r) return {}; var t = {}; for (var n in r) if ({}.hasOwnProperty.call(r, n)) { if (-1 !== e.indexOf(n)) continue; t[n] = r[n]; } return t; }
const BASE_DELAY = 60;
const WORD_LENGTH_FACTOR = 5;
const PUNCTUATION_DELAY = 80;
const VARIANCE = 0.2;
const Typewriter = _ref => {
  let {
      children = '',
      disabled = false,
      onTyped
    } = _ref,
    others = _objectWithoutProperties(_ref, _excluded);
  const [displayedNodes, setDisplayedNodes] = (0, _react.useState)([]);
  const [wordIndex, setWordIndex] = (0, _react.useState)(0);
  const tokensRef = (0, _react.useRef)([]);
  const timeoutRef = (0, _react.useRef)(null);
  const getWordDelay = function () {
    let text = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
    let delay = BASE_DELAY;
    const length = typeof text === 'string' ? text.length : 0;
    delay += length * WORD_LENGTH_FACTOR;
    const lastChar = typeof text === 'string' && text[length - 1];
    if (['.', ',', '!', '?', ':', ';'].includes(lastChar)) delay += PUNCTUATION_DELAY;
    const variance = 1 + (Math.random() * VARIANCE * 2 - VARIANCE);
    return Math.round(delay * variance);
  };
  const toTokens = nodes => {
    const list = [];
    _react.Children.toArray(nodes).forEach(node => {
      if (typeof node === 'string') {
        node.split(' ').filter(Boolean).forEach(word => list.push({
          node: word,
          text: word
        }));
      } else if (/*#__PURE__*/(0, _react.isValidElement)(node)) {
        var _node$props;
        list.push({
          node,
          text: typeof ((_node$props = node.props) === null || _node$props === void 0 ? void 0 : _node$props.children) === 'string' ? node.props.children : ''
        });
      }
    });
    return list;
  };
  (0, _react.useEffect)(() => {
    tokensRef.current = toTokens(children);
    setDisplayedNodes([]);
    setWordIndex(0);
    return () => {
      if (timeoutRef.current) clearTimeout(timeoutRef.current);
    };
  }, [children]);
  (0, _react.useEffect)(() => {
    if (disabled) return;
    if (wordIndex < tokensRef.current.length) {
      const current = tokensRef.current[wordIndex];
      const delay = getWordDelay(current.text);
      timeoutRef.current = setTimeout(() => {
        setDisplayedNodes(prev => {
          if (!prev.length) return [current.node];
          const isPunctuation = typeof current.node === 'string' && /^[.,!?;:]/.test(current.node);
          return isPunctuation ? [...prev, current.node] : [...prev, ' ', current.node];
        });
        setWordIndex(prevIndex => prevIndex + 1);
        if (wordIndex === tokensRef.current.length - 1 && onTyped) onTyped();
      }, delay);
      return () => clearTimeout(timeoutRef.current);
    }
  }, [disabled, wordIndex, onTyped]);
  return disabled ? /*#__PURE__*/_react.default.createElement(_ui.Text, others, children) : /*#__PURE__*/_react.default.createElement(_ui.View, {
    className: [style.typewriter, others.className]
  }, /*#__PURE__*/_react.default.createElement(_ui.Text, _extends({}, others, {
    className: [style.scaffold, others.className]
  }), children), /*#__PURE__*/_react.default.createElement(_ui.Text, _extends({}, others, {
    className: [style.animated, others.className]
  }), displayedNodes));
};
exports.Typewriter = Typewriter;
Typewriter.displayName = 'Typewriter';
Typewriter.propTypes = {
  children: _propTypes.default.node,
  disabled: _propTypes.default.bool,
  onTyped: _propTypes.default.func
};
//# sourceMappingURL=Typewriter.js.map