server.js

/**
 * This is the main Node.js server script for your project
 * Check out the two endpoints this back-end API provides in fastify.get and fastify.post below
 */

const path = require("path");
const fetch = require('node-fetch');

// Require the fastify framework and instantiate it
const fastify = require("fastify")({
  // Set this to true for detailed logging:
  logger: false,
});

// ADD FAVORITES ARRAY VARIABLE FROM TODO HERE

// Setup our static files
fastify.register(require("@fastify/static"), {
  root: path.join(__dirname, "public"),
  prefix: "/", // optional: default '/'
});

// Formbody lets us parse incoming forms
fastify.register(require("@fastify/formbody"));

// View is a templating manager for fastify
fastify.register(require("@fastify/view"), {
  engine: {
    handlebars: require("handlebars"),
  },
});

// Load and parse SEO data
const seo = require("./src/seo.json");
if (seo.url === "glitch-default") {
  seo.url = `https://${process.env.PROJECT_DOMAIN}.glitch.me`;
}

/**
 * Our home page route
 *
 * Returns src/pages/index.hbs with data built into it
 */
fastify.get("/", function (request, reply) {
  // params is an object we'll pass to our handlebars template
  let params = { seo: seo };

  // The Handlebars code will be able to access the parameter values and build them into the page
  return reply.view("/src/pages/index.hbs", params);
});

fastify.get("/about", function (request, reply) {
  // params is an object we'll pass to our handlebars template
  let params = { seo: seo };

  // The Handlebars code will be able to access the parameter values and build them into the page
  return reply.view("/src/pages/about.hbs", params);
});

fastify.get("/load", async function(request, reply) {
  let collectionUrl = request.query.url;
  let urlPattern = /\/\/archive.org\/details\/([^\/]+)\/?$/;
  let collectionName = collectionUrl.match(urlPattern)[1];

  const data = await(await fetch(`https://archive.org/advancedsearch.php?q=collection%3A(${collectionName})&fl[]=[identifier]&sort[]=&sort[]=&sort[]=&rows=1&page=1&output=json`)).json();

  const maxPage = await data.response.numFound;
  const randomPage = (Math.floor(Math.random() * maxPage) + 1) % 10000;
  
  const itemListing = await(await fetch(`https://archive.org/advancedsearch.php?q=collection%3A(${collectionName})&fl[identifier]=&sort[]=&sort[]=&sort[]=&rows=1&page=${randomPage}&output=json`)).json();
  
  reply.send(await(await fetch(`https://archive.org/metadata/${itemListing.response.docs[0].identifier}`)).json());
});

fastify.get("/redirect", async function(request, reply) {
  let collectionUrl = request.query.url;
  console.log(collectionUrl);
  let urlPattern = /\/\/archive.org\/details\/([^\/]+)\/?$/;
  let collectionName = collectionUrl.match(urlPattern)[1];

  const data = await(await fetch(`https://archive.org/advancedsearch.php?q=collection%3A(${collectionName})&fl[]=[identifier]&sort[]=&sort[]=&sort[]=&rows=1&page=1&output=json`)).json();
  
  const maxPage = await data.response.numFound;
  const randomPage = (Math.floor(Math.random() * maxPage) + 1) % 10000;
  
  const itemListing = await(await fetch(`https://archive.org/advancedsearch.php?q=collection%3A(${collectionName})&fl[identifier]=&sort[]=&sort[]=&sort[]=&rows=1&page=${randomPage}&output=json`)).json();
  
  reply.redirect(303, `https://archive.org/details/${itemListing.response.docs[0].identifier}`);
});


/**
 * Our POST route to handle and react to form submissions
 *
 * Accepts body data indicating the user choice
 */
fastify.post("/", function (request, reply) {
  // Build the params object to pass to the template
  let params = { seo: seo };

  // If the user submitted a color through the form it'll be passed here in the request body
  let color = request.body.color;

  // If it's not empty, let's try to find the color
  if (color) {
    // ADD CODE FROM TODO HERE TO SAVE SUBMITTED FAVORITES

    // Load our color data file
    const colors = require("./src/colors.json");

    // Take our form submission, remove whitespace, and convert to lowercase
    color = color.toLowerCase().replace(/\s/g, "");

    // Now we see if that color is a key in our colors object
    if (colors[color]) {
      // Found one!
      params = {
        color: colors[color],
        colorError: null,
        seo: seo,
      };
    } else {
      // No luck! Return the user value as the error property
      params = {
        colorError: request.body.color,
        seo: seo,
      };
    }
  }

  // The Handlebars template will use the parameter values to update the page with the chosen color
  return reply.view("/src/pages/index.hbs", params);
});

// Run the server and report out to the logs
fastify.listen(
  { port: process.env.PORT, host: "0.0.0.0" },
  function (err, address) {
    if (err) {
      console.error(err);
      process.exit(1);
    }
    console.log(`Your app is listening on ${address}`);
  }
);