import { Post } from "../../components/posts/post";
import { client } from "../../tina/__generated__/client";
import { useTina } from "tinacms/dist/react";
import { Layout } from "../../components/layout";
import { InferGetStaticPropsType } from "next";

// Use the props returned by get static props
export default function BlogPostPage(
    props: InferGetStaticPropsType<typeof getStaticProps>
) {
    const { data } = useTina({
        query: props.query,
        variables: props.variables,
        data: props.data
    });
    if (data && data.post) {
        return (
            <Layout rawData={ data } data={ data.global }>
                <Post { ...data.post } />
            </Layout>
        );
    }
    return (
        <Layout>
            <div>No data</div>;
        </Layout>
    );
}

export const getStaticProps = async ({ params }) => {
    const tinaProps = await client.queries.blogPostQuery({
        relativePath: `${ params.filename }.mdx`
    });
    return {
        props: {
            ...tinaProps
        }
    };
};

/**
 * To build the blog post pages we just iterate through the list of
 * posts and provide their "filename" as part of the URL path
 *
 * So a blog post at "content/posts/hello.md" would
 * be viewable at http://localhost:3000/posts/hello
 *
 * @returns {Promise} A promise with static paths.
 */
export const getStaticPaths = async () => {
    const postsListData = await client.queries.postConnection();
    return {
        paths: postsListData.data.postConnection.edges.map((post) => ({
            params: { filename: post.node._sys.filename }
        })),
        fallback: "blocking"
    };
};

export type PostType = InferGetStaticPropsType<
  typeof getStaticProps
>["data"]["post"];
