AdrieanKhisbe/configue

const {makeConfigGetter} = require('./core/getters');

const rawHapiPlugin = function(configue, decorateName = 'configue') {
  /**
   * Register the <tt>Configue</tt> plugin and process the various steps and hooks
   * @param server - Hapi server to configure
   * @param options - options of the Configue Plugin
   * @param next - plugin continuation
   */
  return function plugin(server, options, next) {
    const register = () => {
      server.log(['plugin', 'info'], 'Registering the configue as decoration');
      const configGetter = makeConfigGetter(configue);
      server.decorate('server', decorateName, configGetter);
      server.decorate('request', decorateName, configGetter);

      if (next) next();
    };
    if (configue.resolved) return register();

    try {
      const promiseMaybe = configue.resolve();
      if (promiseMaybe && promiseMaybe.then) {
        return promiseMaybe.then(register).catch(next);
      }
      return register();
    } catch (err) {
      if (next) return next(err);
      else throw err;
    }
  };
};

const hapi17Plugin = function(decorateName) {
  const configue = this;
  return {
    register: rawHapiPlugin(configue, decorateName),
    pkg: require('../package.json')
  };
};

const hapiPlugin = function(decorateName) {
  const configue = this;
  const plugin = rawHapiPlugin(configue, decorateName);
  plugin.attributes = {
    pkg: require('../package.json')
  };
  return plugin;
};

const expressMiddleware = function(decorateName) {
  const configue = this;
  const configGetter = makeConfigGetter(configue);
  const getterName = decorateName || 'configue';
  return (req, res, next) => {
    req[getterName] = configGetter;
    next();
  };
};

module.exports = {hapiPlugin, hapi17Plugin, expressMiddleware};