import { upsertApiKey, validateGrafanaUrl } from '../services/api_keys';

import * as express from 'express'

import * as _ from 'lodash';


async function checkConnection(req, res) {
  const query = req.query;

  const clientUrl = query.url;
  if (_.isEmpty(clientUrl)) {
    res.status(400).send('"url" field is required');
    return;
  }

  try {
    validateGrafanaUrl(clientUrl);
  } catch (e) {
    res.status(500).send(e.message);
    return;
  }

  res.status(200).send({ version: __VERSION__ });
}

async function connectPlugin(req, res) {
  const body = req.body;

  const clientUrl = body.url;
  if (_.isEmpty(clientUrl)) {
    res.status(400).send('"url" field is required');
    return;
  }
  const apiToken = body.apiToken;
  if (_.isEmpty(apiToken)) {
    res.status(400).send('"apiToken" field is required');
    return;
  }

  const grafanaUrl = new URL(clientUrl).origin;

  upsertApiKey(grafanaUrl, apiToken);

  console.log(`Grafana at ${grafanaUrl} is connected`);

  res.status(200).send({ version: __VERSION__ });
}

export const router = express.Router();

router.get('/', checkConnection);
router.post('/', connectPlugin);