app.js

const express = require('express')
const path = require('path')
const compression = require('compression')
const cookieParser = require('cookie-parser')
const cors = require('cors')
const mongoSanitize = require('express-mongo-sanitize')
const morgan = require('morgan')
const swaggerJsDoc = require('swagger-jsdoc')
const swaggerUi = require('swagger-ui-express')
const bodyParser = require('body-parser')

const authRouter = require('./routes/authRoutes')
const contributeRouter = require('./routes/contributeRoutes')
const quizRouter = require('./routes/quizRoutes')
const tableRouter = require('./routes/tableRoutes')

const logger = require('./config/winston-config-stream')
const createDirIfNotExists = require('./utils/createDirIfNotExists')

// Start app
const app = express()

// CORS
app.use(cors())

// Cookie Parser
app.use(cookieParser())

// Serve static files
app.use(express.static(path.join(__dirname, 'client', 'build')))

// Body parser
app.use(
  bodyParser.urlencoded({
    extended: false,
  })
)

app.use(bodyParser.json())

// Sanitize against NoSQL query injections
app.use(mongoSanitize())

// Compress text files
app.use(compression())

// Morgan/Winston - logging middleware
createDirIfNotExists(path.join(__dirname, 'logs'))
app.use(morgan('common', { stream: logger.stream }))

// Swagger Options
const swaggerOptions = {
  swaggerDefinition: {
    info: {
      title: 'AlgoAcademy API',
      description: 'API endpoints for AlgoAcademy',
      contact: {
        name: 'Ryuichi Miyazaki',
      },
      servers: ['http://localhost:5000'],
    },
  },
  apis: ['./routes/*.js'],
}

const swaggerDocs = swaggerJsDoc(swaggerOptions)

const router = express.Router()

// Mounting Routers - API endpoints
app.use('/', router)
app.use('/api/v1/auth', authRouter)
app.use('/api/v1/contribute', contributeRouter)
app.use('/api/v1/quizzes', quizRouter)
app.use('/api/v1/table', tableRouter)
app.use('/api/v1/docs', swaggerUi.serve, swaggerUi.setup(swaggerDocs))

// all other routes
app.get('*', (req, res) => {
  res.sendFile(path.join(__dirname, 'client/build', 'index.html'))
})

module.exports = app