import swaggerUi from 'swagger-ui-koa';
import swaggerJSDoc from 'swagger-jsdoc';
import convert from 'koa-convert';
import mount from 'koa-mount';
//import swaggerDocument from './swagger.json'; //also can be used

export default function (app) {
  //without jsdoc from swagger.json
  //app.use(swaggerUi.serve); //serve swagger static files
  //app.use(convert(mount('/swagger', swaggerUi.setup(swaggerDocument)))); //mount endpoint for access

  //with jsdoc
  const options = {
    swaggerDefinition: {
      info: {
        title: 'API', // Title (required)
        version: '2.0.0', // Version (required)
      },
    },
    apis: [
      './src/module/swagger/swagger.yaml',
      './src/routes/*.js', // Path to the API docs from root
      './src/module/swagger/parameters.yaml'
    ],
  };
  // Initialize swagger-jsdoc -> returns validated swagger spec in json format
  const swaggerSpec = swaggerJSDoc(options);
  app.use(swaggerUi.serve); //serve swagger static files
  app.use(convert(mount('/swagger', swaggerUi.setup(swaggerSpec)))); //mount endpoint for access
}

const express = require('express');
const app = express();
const swaggerUi = require('swagger-ui-express');
const swaggerDocument = require('./swagger.json');

var showExplorer = true;
  ...
  swaggerUi.setup(swaggerDocument, showExplorer)
  ...

var showExplorer = true;
var options = {
	validatorUrl : null
};
...
swaggerUi.setup(swaggerDocument, showExplorer, options));
...

var showExplorer = false;
var options = {};
var customCss = '#header { display: none }';

...
swaggerUi.setup(swaggerDocument, showExplorer, options, customCss));
...