rotten movies

rotten.js

const CORS_PROXY_URL = "https://cors-anywhere.herokuapp.com";

async function responseAsDOM(response) {
  const text = await response.text();
  const parser = new DOMParser();
  return parser.parseFromString(text, "text/html");
}

async function readBodyAndDecode(response) {
  const buffer = await response.arrayBuffer();

  const decoder = new TextDecoder("iso-8859-1");
  return decoder.decode(buffer);
}

async function scrapPage(path) {
  if (path.startsWith("/")) path = path.slice(1);
  const response = await fetch(
    `${CORS_PROXY_URL}/https://www.rottentomatoes.com/${path}`
  );
  return responseAsDOM(response);
}

export async function fetchMovies() {
  const document = await scrapPage("browse/in-theaters");
  for (const script of document.querySelectorAll("script")) {
    if (script.innerText.includes("loadPage")) {
      const movieListMatch = script.innerText.match(/^\s+(\[\{.*\}\]),$/m);
      if (movieListMatch) return JSON.parse(movieListMatch[1]);
    }
  }
  throw new Error("Failed to fetch movies");
}

export async function fetchMovieDetails(id) {
  const response = await fetch(
    `https://www.rottentomatoes.com/api/private/v1.0/movies/${id}.json`
  );
  const text = await readBodyAndDecode(response);

  return JSON.parse(text);
}

export async function fetchMovieReviews(id) {
  const details = await fetchMovieDetails(id);

  // Simulate long delay
  await new Promise(resolve => setTimeout(resolve, 3000));

  return details.reviews.reviews;
}