#%RAML 1.0
title: cinema
version: v1
baseUri: /
types:
  Movie:
    properties:
      id: string
      title: string
      runtime: number
      format: string
      plot: string
      releaseYear: number
      releaseMonth: number
      releaseDay: number
    example:
      id: "123"
      title: "Assasins Creed"
      runtime: 115
      format: "IMAX"
      plot: "Lorem ipsum dolor sit amet"
      releaseYear : 2017
      releaseMonth: 1
      releaseDay: 6
  MoviePremieres:
    type: Movie []
resourceTypes:
  Collection:
    get:
      responses:
        200:
          body:
            application/json:
              type: <<item>>
/movies:
  /premieres:
    type:  { Collection: {item : MoviePremieres } }
  /{id}:
    type:  { Collection: {item : Movie } }

'use strict'
// factory function, that holds an open connection to the db,
// and exposes some functions for accessing the data.
const repository = (db) => {
  // since this is the movies-service, we already know
  // that we are going to query the `movies` collection
  // in all of our functions.
  const collection = db.collection('movies')
  const getMoviePremiers = () => {
    return new Promise((resolve, reject) => {
      const movies = []
      const currentDay = new Date()
      const query = {
        releaseYear: {
          $gt: currentDay.getFullYear() - 1,
          $lte: currentDay.getFullYear()
        },
        releaseMonth: {
          $gte: currentDay.getMonth() + 1,
          $lte: currentDay.getMonth() + 2
        },
        releaseDay: {
          $lte: currentDay.getDate()
        }
      }
      const cursor = collection.find(query)
      const addMovie = (movie) => {
        movies.push(movie)
      }
      const sendMovies = (err) => {
        if (err) {
          reject(new Error('An error occured fetching all movies, err:' + err))
        }
        resolve(movies)
      }
      cursor.forEach(addMovie, sendMovies)
    })
  }
  const getMovieById = (id) => {
    return new Promise((resolve, reject) => {
      const projection = { _id: 0, id: 1, title: 1, format: 1 }
      const sendMovie = (err, movie) => {
        if (err) {
          reject(new Error(`An error occured fetching a movie with id: ${id}, err: ${err}`))
        }
        resolve(movie)
      }
      // fetch a movie by id -- mongodb syntax
      collection.findOne({id: id}, projection, sendMovie)
    })
  }
  // this will close the database connection
  const disconnect = () => {
    db.close()
  }
  return Object.create({
    getAllMovies,
    getMoviePremiers,
    getMovieById,
    disconnect
  })
}
const connect = (connection) => {
  return new Promise((resolve, reject) => {
    if (!connection) {
      reject(new Error('connection db not supplied!'))
    }
    resolve(repository(connection))
  })
}
// this only exports a connected repo
module.exports = Object.assign({}, {connect})

'use strict'
const express = require('express')
const morgan = require('morgan')
const helmet = require('helmet')
const movieAPI = require('../api/movies')
const start = (options) => {
  return new Promise((resolve, reject) => {
    // we need to verify if we have a repository added and a server port
    if (!options.repo) {
      reject(new Error('The server must be started with a connected repository'))
    }
    if (!options.port) {
      reject(new Error('The server must be started with an available port'))
    }
    // let's init a express app, and add some middlewares
    const app = express()
    app.use(morgan('dev'))
    app.use(helmet())
    app.use((err, req, res, next) => {
      reject(new Error('Something went wrong!, err:' + err))
      res.status(500).send('Something went wrong!')
    })
    // we add our API's to the express app
    movieAPI(app, options)
    // finally we start the server, and return the newly created server 
    const server = app.listen(options.port, () => resolve(server))
  })
}
module.exports = Object.assign({}, {start})

'use strict'
const status = require('http-status')
module.exports = (app, options) => {
  const {repo} = options
  // here we get all the movies 
  app.get('/movies', (req, res, next) => {
    repo.getAllMovies().then(movies => {
      res.status(status.OK).json(movies)
    }).catch(next)
  })
  // here we retrieve only the premieres
  app.get('/movies/premieres', (req, res, next) => {
    repo.getMoviePremiers().then(movies => {
      res.status(status.OK).json(movies)
    }).catch(next)
  })
  // here we get a movie by id
  app.get('/movies/:id', (req, res, next) => {
    repo.getMovieById(req.params.id).then(movie => {
      res.status(status.OK).json(movie)
    }).catch(next)
  })
}

/* eslint-env mocha */
const request = require('supertest')
const server = require('../server/server')
describe('Movies API', () => {
  let app = null
  let testMovies = [{
    'id': '3',
    'title': 'xXx: Reactivado',
    'format': 'IMAX',
    'releaseYear': 2017,
    'releaseMonth': 1,
    'releaseDay': 20
  }, {
    'id': '4',
    'title': 'Resident Evil: Capitulo Final',
    'format': 'IMAX',
    'releaseYear': 2017,
    'releaseMonth': 1,
    'releaseDay': 27
  }, {
    'id': '1',
    'title': 'Assasins Creed',
    'format': 'IMAX',
    'releaseYear': 2017,
    'releaseMonth': 1,
    'releaseDay': 6
  }]
  let testRepo = {
    getAllMovies () {
      return Promise.resolve(testMovies)
    },
    getMoviePremiers () {
      return Promise.resolve(testMovies.filter(movie => movie.releaseYear === 2017))
    },
    getMovieById (id) {
      return Promise.resolve(testMovies.find(movie => movie.id === id))
    }
  }
  beforeEach(() => {
    return server.start({
      port: 3000,
      repo: testRepo
    }).then(serv => {
      app = serv
    })
  })
  afterEach(() => {
    app.close()
    app = null
  })
  it('can return all movies', (done) => {
    request(app)
      .get('/movies')
      .expect((res) => {
        res.body.should.containEql({
          'id': '1',
          'title': 'Assasins Creed',
          'format': 'IMAX',
          'releaseYear': 2017,
          'releaseMonth': 1,
          'releaseDay': 6
        })
      })
      .expect(200, done)
  })
  it('can get movie premiers', (done) => {
    request(app)
    .get('/movies/premiers')
    .expect((res) => {
      res.body.should.containEql({
        'id': '1',
        'title': 'Assasins Creed',
        'format': 'IMAX',
        'releaseYear': 2017,
        'releaseMonth': 1,
        'releaseDay': 6
      })
    })
    .expect(200, done)
  })
  it('returns 200 for an known movie', (done) => {
    request(app)
      .get('/movies/1')
      .expect((res) => {
        res.body.should.containEql({
          'id': '1',
          'title': 'Assasins Creed',
          'format': 'IMAX',
          'releaseYear': 2017,
          'releaseMonth': 1,
          'releaseDay': 6
        })
      })
      .expect(200, done)
  })
})

/* eslint-env mocha */
const server = require('./server')
describe('Server', () => {
  it('should require a port to start', () => {
    return server.start({
      repo: {}
    }).should.be.rejectedWith(/port/)
  })
  it('should require a repository to start', () => {
    return server.start({
      port: {}
    }).should.be.rejectedWith(/repository/)
  })
})

const MongoClient = require('mongodb')
// here we create the url connection string that the driver needs
const getMongoURL = (options) => {
  const url = options.servers
    .reduce((prev, cur) => prev + `${cur.ip}:${cur.port},`, 'mongodb://')
  return `${url.substr(0, url.length - 1)}/${options.db}`
}
// mongoDB function to connect, open and authenticate
const connect = (options, mediator) => {
  mediator.once('boot.ready', () => {
    MongoClient.connect( getMongoURL(options), {
        db: options.dbParameters(),
        server: options.serverParameters(),
        replset: options.replsetParameters(options.repl)
      }, (err, db) => {
        if (err) {
          mediator.emit('db.error', err)
        }
        db.admin().authenticate(options.user, options.pass, (err, result) => {
          if (err) {
            mediator.emit('db.error', err)
          }
          mediator.emit('db.ready', db)
        })
      })
  })
}
module.exports = Object.assign({}, {connect})

// simple configuration file
// database parameters
const dbSettings = {
  db: process.env.DB || 'movies',
  user: process.env.DB_USER || 'cristian',
  pass: process.env.DB_PASS || 'cristianPassword2017',
  repl: process.env.DB_REPLS || 'rs1',
  servers: (process.env.DB_SERVERS) ? process.env.DB_SERVERS.split(' ') : [
    '192.168.99.100:27017',
    '192.168.99.101:27017',
    '192.168.99.102:27017'
  ],
  dbParameters: () => ({
    w: 'majority',
    wtimeout: 10000,
    j: true,
    readPreference: 'ReadPreference.SECONDARY_PREFERRED',
    native_parser: false
  }),
  serverParameters: () => ({
    autoReconnect: true,
    poolSize: 10,
    socketoptions: {
      keepAlive: 300,
      connectTimeoutMS: 30000,
      socketTimeoutMS: 30000
    }
  }),
  replsetParameters: (replset = 'rs1') => ({
    replicaSet: replset,
    ha: true,
    haInterval: 10000,
    poolSize: 10,
    socketoptions: {
      keepAlive: 300,
      connectTimeoutMS: 30000,
      socketTimeoutMS: 30000
    }
  })
}
// server parameters
const serverSettings = {
  port: process.env.PORT || 3000
}
module.exports = Object.assign({}, { dbSettings, serverSettings })

'use strict'
// we load all the depencies we need
const {EventEmitter} = require('events')
const server = require('./server/server')
const repository = require('./repository/repository')
const config = require('./config/')
const mediator = new EventEmitter()
// verbose logging when we are starting the server
console.log('--- Movies Service ---')
console.log('Connecting to movies repository...')
// log unhandled execpetions
process.on('uncaughtException', (err) => {
  console.error('Unhandled Exception', err)
})
process.on('uncaughtRejection', (err, promise) => {
  console.error('Unhandled Rejection', err)
})
// event listener when the repository has been connected
mediator.on('db.ready', (db) => {
  let rep
  repository.connect(db)
    .then(repo => {
      console.log('Repository Connected. Starting Server')
      rep = repo
      return server.start({
        port: config.serverSettings.port,
        repo
      })
    })
    .then(app => {
      console.log(`Server started succesfully, running on port: ${config.serverSettings.port}.`)
      app.on('close', () => {
        rep.disconnect()
      })
    })
})
mediator.on('db.error', (err) => {
  console.error(err)
})
// we load the connection to the repository
config.db.connect(config.dbSettings, mediator)
// init the repository connection, and the event listener will handle the rest
mediator.emit('boot.ready')

# Node v7作為基本映像以支持ES6
FROM node:7.2.0
# 為新容器創(chuàng)建一個新用戶，并避免root用戶
RUN useradd --user-group --create-home --shell /bin/false nupp && \
    apt-get clean
ENV HOME=/home/nupp
COPY package.json npm-shrinkwrap.json $HOME/app/
COPY src/ $HOME/app/src
RUN chown -R nupp:nupp $HOME/* /usr/local/
WORKDIR $HOME/app
RUN npm cache clean && \
    npm install --silent --progress=false --production
RUN chown -R nupp:nupp $HOME/*
USER nupp
EXPOSE 3000
CMD ["npm", "start"]

$ docker build -t movies-service .

$ docker run --name movie-service -p 3000:3000 -e DB_SERVERS="192.168.99.100:27017 192.168.99.101:27017 192.168.99.100:27017" -d movies-service

/* eslint-env mocha */
const supertest = require('supertest')
describe('movies-service', () => {
  const api = supertest('http://192.168.99.100:3000')
  it('returns a 200 for a collection of movies', (done) => {
    api.get('/movies/premiers')
      .expect(200, done)
  })
})