import App from "next/app";
import Page from "../components/page";
import { ApolloProvider } from "react-apollo";
import withApollo from "../lib/withApollo";

/**
 * Next.js uses the `App` component to initialize pages. See:
 * https://github.com/zeit/next.js/#custom-app
 *
 * Example how to use it to style child components:
 * https://github.com/zeit/next.js/blob/canary/examples/with-app-layout/pages/_app.js
 *
 * Instead of the Layout component, we use the Page component here,
 * where we add a styled-components theme provider, and Next.js headers and metas.
 * - Using Page with layout information
 *
 * Using next-with-apollo:
 * https://github.com/lfades/next-with-apollo
 * - Wrapping MyApp in withApollo HOC
 */

class MyApp extends App {
  static async getInitialProps({ Component, ctx }) {
    let pageProps = {};

    if (Component.getInitialProps) {
      pageProps = await Component.getInitialProps(ctx);
    }

    // Add the query object to the pageProps
    // https://github.com/wesbos/Advanced-React/blob/master/finished-application/frontend/pages/_app.js
    pageProps.query = ctx.query;

    return { pageProps };
  }

  render() {
    const { Component, apollo, pageProps } = this.props;

    return (
      <ApolloProvider client={apollo}>
        <Page>
          <Component {...pageProps} />
        </Page>
      </ApolloProvider>
    );
  }
}

export default withApollo(MyApp);