import express from '@feathersjs/express';  
import feathers, {HookContext} from '@feathersjs/feathers';  
import cors from 'cors';  
import helmet from 'helmet';  
import compress from 'compression';  
import ArangoDbService, { IArangoDbService, IOptions, AUTH_TYPES } from 'feathers-arangodb'  
import { aql } from "arangojs";  
  
// Set up your feathers app.  
const app = express(feathers());  
app.use(helmet());  
app.use(cors());  
app.use(compress());  
app.use(express.json());  
app.use(express.urlencoded({ extended: true }));  
app.configure(express.rest());  
  
// Create your database settings  
const todoDatabase:IOptions = {  
  collection: 'TODOS',  
  database: 'YOUR_DATABASE_NAME',  
  authType: AUTH_TYPES.BASIC_AUTH,  
  username: 'root',  
  password: 'root',  
};  
// Fast and simple CRUD  
app.use('todos', ArangoDbService(todoDatabase));  
  
// Add in some hooks!  
const todoService = <IArangoDbService<any>>app.service('todos');  
todoService.hooks({  
  after: {  
    create: [  
      async (context:HookContext) => {  
        // Maybe we want run another AQL query directly on the database.  
        const { database, collection } = await todoService.connect();  
        // Do a query  
        const cursor = await database.query(aql`RETURN LENGTH(${collection})`)  
        // Parse the cursor  
        const count = await cursor.next();  
        // Assign some data to the stuff  
        context.result = {  
          count,  
          data: context.result  
        };  
        return context;  
      }  
    ]  
  }  
});  
  
// Start the app listening  
app.listen(8080);  
console.log('Listening on port 8080');