Support prerendered apps

[evoactivity]

What Changed & Why

• Uses a glob pattern to find all index.html files
• Loops over list and uploads each file to redis
• Uses the directory structure as part of the redis key

Related issues

Fixes #132

PR Checklist

• Add tests
• Add documentation

@lukemelia

[evoactivity]

I've been using this successfully with this code to fetch the correct page

import type { HttpContextContract } from '@ioc:Adonis/Core/HttpContext';
import type { RequestContract } from '@ioc:Adonis/Core/Request';
import Redis from '@ioc:Adonis/Addons/Redis';

/**
 * Computes the key based on request's query string.
 * Defaults to the current key from Redis if not provided in the query string.
 */
async function computeKey(request: RequestContract): Promise<string> {
  const { revision } = request.qs();
  return revision || (await Redis.get(`web-app:index:current`));
}

/**
 * Normalizes the URL for consistent lookup.
 * Strips leading and trailing slashes and appends ':index' as a suffix.
 */
function normalizeUrl(url: string): string {
  const strippedUrl = url.replace(/^\/|\/$/g, '');
  return strippedUrl === '' ? 'index' : `${strippedUrl}:index`;
}

export default class EmberWebController {
  public async index({ request, response }: HttpContextContract) {
    const key = await computeKey(request);
    const normalizedUrl = normalizeUrl(request.url());

    // Attempt to retrieve the HTML for the specified URL and key.
    const htmlKey = `web-app:${normalizedUrl}:${key}`;
    if (await Redis.exists(htmlKey)) {
      const html = await Redis.get(htmlKey);
      return response.ok(html);
    }

    // Fallback to retrieve the default HTML for the key.
    const defaultHtml = await Redis.get(`web-app:index:${key}`);
    return response.ok(defaultHtml);
  }
}