import { Configuration } from './configuration/Configuration';
import { SettingsManager } from './configuration/SettingsManager';
import { ExceptionlessClient } from './ExceptionlessClient';
import { NodeEnvironmentInfoCollector } from './services/NodeEnvironmentInfoCollector';
import { NodeErrorParser } from './services/NodeErrorParser';
import { NodeModuleCollector } from './services/NodeModuleCollector';
import { NodeRequestInfoCollector } from './services/NodeRequestInfoCollector';
import { NodeFileStorageProvider } from './storage/NodeFileStorageProvider';
import { NodeSubmissionAdapter } from './submission/NodeSubmissionAdapter';

(function init() {
  if (typeof process === 'undefined') {
    return;
  }

  const defaults = Configuration.defaults;
  defaults.environmentInfoCollector = new NodeEnvironmentInfoCollector();
  defaults.errorParser = new NodeErrorParser();
  defaults.moduleCollector = new NodeModuleCollector();
  defaults.requestInfoCollector = new NodeRequestInfoCollector();
  defaults.submissionAdapter = new NodeSubmissionAdapter();

  Configuration.prototype.useLocalStorage = function() {
    this.storage = new NodeFileStorageProvider();
    SettingsManager.applySavedServerSettings(this);
    this.changed();
  };

  process.addListener('uncaughtException', (error: Error) => {
    ExceptionlessClient.default.submitUnhandledException(error, 'uncaughtException');
  });

  process.on('exit', (code: number) => {
    /**
     * exit codes: https://nodejs.org/api/process.html#process_event_exit
     * From now on, only synchronous code may run. As soon as this method
     * ends, the application inevitably will exit.
     */
    function getExitCodeReason(exitCode: number): string {
      if (exitCode === 1) {
        return 'Uncaught Fatal Exception';
      }

      if (exitCode === 3) {
        return 'Internal JavaScript Parse Error';
      }

      if (exitCode === 4) {
        return 'Internal JavaScript Evaluation Failure';
      }

      if (exitCode === 5) {
        return 'Fatal Exception';
      }

      if (exitCode === 6) {
        return 'Non-function Internal Exception Handler ';
      }

      if (exitCode === 7) {
        return 'Internal Exception Handler Run-Time Failure';
      }

      if (exitCode === 8) {
        return 'Uncaught Exception';
      }

      if (exitCode === 9) {
        return 'Invalid Argument';
      }

      if (exitCode === 10) {
        return 'Internal JavaScript Run-Time Failure';
      }

      if (exitCode === 12) {
        return 'Invalid Debug Argument';
      }

      return null;
    }

    const client = ExceptionlessClient.default;
    const message = getExitCodeReason(code);

    if (message !== null) {
      client.submitLog('exit', message, 'Error');
    }

    client.config.queue.process(true);
    // Application will now exit.
  });

  (Error as any).stackTraceLimit = Infinity;
})();