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 _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; }

import { useContext } from 'react';
import { MESSAGE_STATES } from './constants';
import MessageContext from './MessageContext';

function useMessage(name) {
  var _useContext = useContext(MessageContext),
      _useContext$messageAp = _useContext.messageApi,
      eligibleMessageIDMap = _useContext$messageAp.eligibleMessageIDMap,
      markMessageAsSeen = _useContext$messageAp.markMessageAsSeen,
      markMessageAsClosed = _useContext$messageAp.markMessageAsClosed,
      messageStateMap = _useContext.messageStateMap,
      setMessageStateMap = _useContext.setMessageStateMap;

  function canShow() {
    return name in eligibleMessageIDMap && messageStateMap[name] !== MESSAGE_STATES.CLOSED;
  }

  function onShow() {
    if (canShow() && !messageStateMap[name]) {
      setMessageStateMap(_objectSpread({}, messageStateMap, _defineProperty({}, name, MESSAGE_STATES.SHOWING)));
      markMessageAsSeen(eligibleMessageIDMap[name]);
    }
  }

  function onClose() {
    if (canShow() && messageStateMap[name] === MESSAGE_STATES.SHOWING) {
      setMessageStateMap(_objectSpread({}, messageStateMap, _defineProperty({}, name, MESSAGE_STATES.CLOSED)));
      markMessageAsClosed(eligibleMessageIDMap[name]);
    }
  }

  return {
    canShow: canShow,
    onShow: onShow,
    onClose: onClose
  };
}

export default useMessage;
//# sourceMappingURL=useMessage.js.map