redux-firestore/lib/middleware.js

"use strict";

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

var _isArray2 = _interopRequireDefault(require("lodash/isArray"));

var _constants = require("./constants");

function _interopRequireDefault(obj) { return obj && obj.__esModule ? obj : { default: obj }; }

function _slicedToArray(arr, i) { return _arrayWithHoles(arr) || _iterableToArrayLimit(arr, i) || _nonIterableRest(); }

function _nonIterableRest() { throw new TypeError("Invalid attempt to destructure non-iterable instance"); }

function _iterableToArrayLimit(arr, i) { var _arr = []; var _n = true; var _d = false; var _e = undefined; try { for (var _i = arr[Symbol.iterator](), _s; !(_n = (_s = _i.next()).done); _n = true) { _arr.push(_s.value); if (i && _arr.length === i) break; } } catch (err) { _d = true; _e = err; } finally { try { if (!_n && _i["return"] != null) _i["return"](); } finally { if (_d) throw _e; } } return _arr; }

function _arrayWithHoles(arr) { if (Array.isArray(arr)) return arr; }

function callFirestore(firebaseInstance, callInfoObj) {
  var method = callInfoObj.method;
  var modelArgs = callInfoObj.modelArgs,
      methodArgs = callInfoObj.methodArgs;
  if (!(0, _isArray2.default)(modelArgs)) modelArgs = [modelArgs];
  if (!(0, _isArray2.default)(methodArgs)) methodArgs = [methodArgs];

  if (!firebaseInstance || !firebaseInstance.firestore) {
    throw new Error('firestore is not a Firebase namespace');
  }

  return !methodArgs ? firebaseInstance.firestore()[method] : firebaseInstance.firestore()[method].apply(firebaseInstance, methodArgs);
}

var CALL_FIRESTORE = 'CALL_FIRESTORE';
exports.CALL_FIRESTORE = CALL_FIRESTORE;
var typesMap = {
  get: [_constants.actionTypes.GET_REQUEST, _constants.actionTypes.GET_SUCCESS, _constants.actionTypes.GET_FAILURE]
};

function reduxFirestoreMiddleware(firestore) {
  return function (store) {
    return function (next) {
      return function (action) {
        var callAPI = action.type === CALL_FIRESTORE ? action : undefined;
        if (typeof callAPI === 'undefined') return next(action);
        var method = callAPI.method;
        if (typeof method === 'function') method = method(store.getState());
        if (typeof method !== 'string') throw new Error('Specify a method.');
        var args = callAPI.args;
        var types = typesMap[method];

        if (!Array.isArray(types) || types.length !== 3) {
          throw new Error('Expected an array of three action types.');
        }

        if (!types.every(function (type) {
          return typeof type === 'string';
        })) {
          throw new Error('Expected action types to be strings.');
        }

        function actionWith(data) {
          var finalAction = Object.assign({}, action, data);
          delete finalAction[CALL_FIRESTORE];
          return finalAction;
        }

        var _types = _slicedToArray(types, 3),
            requestType = _types[0],
            successType = _types[1],
            failureType = _types[2];

        next({
          type: requestType
        });
        var callInfoObj = {
          method: method
        };
        return callFirestore(firestore, callInfoObj).then(function (response) {
          return next({
            response: response,
            method: method,
            args: args,
            type: successType
          });
        }).catch(function (error) {
          return next(actionWith({
            type: failureType,
            error: error.message || error || 'Something bad happened'
          }));
        });
      };
    };
  };
}