17.04 Creating Action Creators

index.js

src\index.js

import React from "react";
import ReactDOM from "react-dom";
import { Provider } from "react-redux";
import { BrowserRouter } from "react-router-dom";
import { createStore } from "redux";
import App from "./App";
import "./index.css";
import registerServiceWorker from "./registerServiceWorker";
import burgerBuilderReducer from "./store/reducers/burgerBuilder";

const store = createStore(
  burgerBuilderReducer,
  window.__REDUX_DEVTOOLS_EXTENSION__ && window.__REDUX_DEVTOOLS_EXTENSION__()
);

const app = (
  <Provider store={store}>
    <BrowserRouter>
      <App />
    </BrowserRouter>
  </Provider>
);
ReactDOM.render(app, document.getElementById("root"));
registerServiceWorker();

BurgerBuilder.js

src\containers\BurgerBuilder\BurgerBuilder.js

import React, { Component, Fragment } from "react";
import { connect } from "react-redux";
import axios from "../../axios-orders";
import BuildControls from "../../components/Burger/BuildControls/BuildControls";
import Burger from "../../components/Burger/Burger";
import OrderSummary from "../../components/Burger/OrderSummary/OrderSummary";
import Modal from "../../components/UI/Modal/Modal";
import Spinner from "../../components/UI/Spinner/Spinner";
import withErrorHandler from "../../hoc/withErrorHandler/withErrorHandler";
import * as burgerBuilderActions from "../../store/actions/index";

class BurgerBuilder extends Component {
  // constructor(props) {
  //     super(props);
  //     this.state = {...}
  // }
  state = {
    purchasable: false,
    purchasing: false,
    loading: false,
    error: false,
  };

  componentDidMount() {
    console.log(this.props);
    // axios
    //   .get(
    //     "https://react-burger-bf7e8-default-rtdb.europe-west1.firebasedatabase.app/ingregients.json"
    //   )
    //   .then((response) => {
    //     this.setState({ ingredients: response.data });
    //   })
    //   .catch((error) => {
    //     this.setState({ error: true });
    //   });
  }

  updatePurchaseState(ingredients) {
    const sum = Object.keys(ingredients)
      .map((igKey) => {
        return ingredients[igKey];
      })
      .reduce((sum, el) => {
        return sum + el;
      }, 0);
    return sum > 0;
  }

  purchaseHandler = () => {
    this.setState({ purchasing: true });
  };

  purchaseCancelHandler = () => {
    this.setState({ purchasing: false });
  };

  purchaseContinueHandler = () => {
    this.props.history.push("/checkout");
  };
  render() {
    const disabledInfo = {
      ...this.props.ings,
    };

    for (let key in disabledInfo) {
      disabledInfo[key] = disabledInfo[key] <= 0;
    }
    let orderSummary = null;

    let burger = this.state.error ? (
      <p>Ingredients can't be loaded!</p>
    ) : (
      <Spinner />
    );

    if (this.props.ings) {
      burger = (
        <Fragment>
          <Burger ingredients={this.props.ings} />
          <BuildControls
            ingredientAdded={this.props.onIgredientAdded}
            ingredientRemoved={this.props.onIgredientRemoved}
            disabled={disabledInfo}
            purchasable={this.updatePurchaseState(this.props.ings)}
            ordered={this.purchaseHandler}
            price={this.props.price}
          />
        </Fragment>
      );

      orderSummary = (
        <OrderSummary
          ingredients={this.props.ings}
          purchaseCancelled={this.purchaseCancelHandler}
          purchaseContinued={this.purchaseContinueHandler}
          price={this.props.price}
        />
      );
    }
    if (this.state.loading) {
      orderSummary = <Spinner />;
    }
    return (
      <Fragment>
        <Modal
          show={this.state.purchasing}
          modalClosed={this.purchaseCancelHandler}
        >
          {orderSummary}
        </Modal>
        {burger}
      </Fragment>
    );
  }
}

const mapStateToProps = (state) => {
  return {
    ings: state.ingredients,
    price: state.totalPrice,
  };
};

const mapDispatchToProps = (dispatch) => {
  return {
    onIgredientAdded: (ingName) =>
      dispatch(burgerBuilderActions.addIngredient(ingName)),
    onIgredientRemoved: (ingName) =>
      dispatch(burgerBuilderActions.removeIngredient(ingName)),
  };
};

export default connect(
  mapStateToProps,
  mapDispatchToProps
)(withErrorHandler(BurgerBuilder, axios));

New index.js

src\store\actions\index.js

export { addIngredient, removeIngredient } from "./burgerBuilder";
export {} from "./order";