import { DatasourceUnavailable } from '../types';
import { Datasource, DatasourceQuery } from '../connectors';

import axios from 'axios';
import * as _ from 'lodash';


// TODO: support direct queries auth
// TODO: move to class and inherit from QueryService abstract class
export async function queryDirect(query: DatasourceQuery, datasource: Datasource) {
  let axiosQuery = {
    url: query.url,
    method: query.method,
  };
  console.log(axiosQuery)

  _.defaults(axiosQuery, query.schema);

  try {
    return axios(axiosQuery);
  } catch (e) {
    // TODO: seems like this error handler can be used for both Grafana and Direct queries
    const msg = `TSDB-kit: fail while request data: ${e.message}`;
    const parsedUrl = new URL(query.url);
    const queryUrl = `query url: ${JSON.stringify(parsedUrl.pathname)}`;
    console.error(`${msg} ${queryUrl}`);

    if(e.response !== undefined) {
      console.error(`Response: \
        status: ${e.response.status}, \
        response data: ${JSON.stringify(e.response.data)}, \
        headers: ${JSON.stringify(e.response.headers)}
      `);
      if(e.response.status === 401) {
        throw new Error(`Unauthorized. Check credentials. ${e.message}`);
      }
      if(e.response.status === 502) {
        let datasourceError = new DatasourceUnavailable(
          `datasource ${parsedUrl.pathname} unavailable, message: ${e.message}`,
          datasource.type,
          query.url
        );
        throw datasourceError;
      }
    }
    throw new Error(msg);
  }
}