import { Express, Request, Response } from 'express';
import swaggerUi from 'swagger-ui-express';
import swaggerJson from '@/generated/swagger/v3/swagger.json';

const swaggerHTML = swaggerUi.generateHTML(swaggerJson, {
  customSiteTitle: 'Spoken API',
});

export const setupSwagger = (app: Express): void => {
  // hides demo index.html file
  // @see https://github.com/scottie1984/swagger-ui-express/issues/202#issuecomment-727257372
  app.use('/docs/rest/index.html', (req, res) =>
    res.redirect(301, '/docs/rest')
  );

  app.use('/docs/rest', swaggerUi.serve, (_req: Request, res: Response) => {
    return res.send(swaggerHTML);
  });
};