/*
 * Licensed to Elasticsearch B.V. under one or more contributor
 * license agreements. See the NOTICE file distributed with
 * this work for additional information regarding copyright
 * ownership. Elasticsearch B.V. licenses this file to you under
 * the Apache License, Version 2.0 (the "License"); you may
 * not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

/**
 * DO NOT EDIT THIS FILE!
 *
 * This file contains the configuration for the Elastic APM instrumentaion of
 * Kibana itself and is only intented to be used during development of Kibana.
 *
 * Instrumentation is turned off by default. Once activated it will send APM
 * data to an Elasticsearch cluster accessible by Elastic employees.
 *
 * To modify the configuration, either use environment variables, or create a
 * file named `config/apm.dev.js`, which exports a config object as described
 * in the docs.
 *
 * For an overview over the available configuration files, see:
 * https://www.elastic.co/guide/en/apm/agent/nodejs/current/configuration.html
 *
 * For general information about Elastic APM, see:
 * https://www.elastic.co/guide/en/apm/get-started/current/index.html
 */

const { readFileSync } = require('fs');
const { join } = require('path');
const { execSync } = require('child_process');
const merge = require('lodash.merge');

module.exports = merge(
  {
    active: false,
    serverUrl: 'https://f1542b814f674090afd914960583265f.apm.us-central1.gcp.cloud.es.io:443',
    // The secretToken below is intended to be hardcoded in this file even though
    // it makes it public. This is not a security/privacy issue. Normally we'd
    // instead disable the need for a secretToken in the APM Server config where
    // the data is transmitted to, but due to how it's being hosted, it's easier,
    // for now, to simply leave it in.
    secretToken: 'R0Gjg46pE9K9wGestd',
    globalLabels: {},
    centralConfig: false,
    logUncaughtExceptions: true,
  },
  devConfig()
);

const rev = gitRev();
if (rev !== null) module.exports.globalLabels.git_rev = rev;

try {
  const filename = join(__dirname, '..', 'data', 'uuid');
  module.exports.globalLabels.kibana_uuid = readFileSync(filename, 'utf-8');
} catch (e) {} // eslint-disable-line no-empty

function gitRev() {
  try {
    return execSync('git rev-parse --short HEAD', {
      encoding: 'utf-8',
      stdio: ['ignore', 'pipe', 'ignore'],
    }).trim();
  } catch (e) {
    return null;
  }
}

function devConfig() {
  try {
    return require('./apm.dev'); // eslint-disable-line import/no-unresolved
  } catch (e) {
    return {};
  }
}