const tor             = require('../lib/tor');
const bandwidthChart  = require('../lib/bandwidth-chart');

module.exports = (req, res, next) => {
  Promise.all([
    tor.node(req.params.id),
    tor.bandwidth(req.params.id)
  ])
    .then(data => {
      // Throw 404 if node doesn't exist
      if(!data[0]) {
        const err = new Error('Node doesn\'t exist');
        err.statusMessage = err.message;
        err.statusCode = 404;
        throw err;
      }

      res.render('node.html', {
        pageTitle: `${data[0].type}: ${data[0].nickname}`,
        node: data[0],
        bandwidth: bandwidthChart(data[1])
      })
    })
    .catch(err => {
      if(err.statusCode == 400) {
        err.statusMessage = 'Invalid node';
      }
      next(err);
    });
}