mongo.js

const mongoose = require('mongoose')

if (process.argv.length < 3) {
  console.log('-------------------------------------')
  console.log('Invalid arguments: No password')
  console.log('-------------------------------------')
  console.log('Valid arguments:')
  console.log('PASSWORD to see all contacts')
  console.log('PASSWORD NAME NUMBER to add a new contact.')
  console.log('-------------------------------------')
  process.exit(1)
}

const password = process.argv[2]

const url =
`mongodb+srv://basbas:${password}@pbdata.mz4qo.mongodb.net/Phonebook?retryWrites=true&w=majority&appName=PBdata`

mongoose.set('strictQuery', false)
mongoose.connect(url)

const contactSchema = new mongoose.Schema({
  name: String,
  number: String,
})

const Contact = mongoose.model('Contact', contactSchema)

if (process.argv.length === 3) {
  console.log('-------------------------------------')
  console.log('Phonebook:')
  console.log('-------------------------------------')
  Contact.find({}).then(result => {
    result.forEach(contact => {
      console.log(`Name:   ${contact.name}`)
      console.log(`Number: ${contact.number}`)
      console.log('-------------------------------------')
    })
    mongoose.connection.close()
  })
}
else if (process.argv.length < 5) {
  console.log('-------------------------------------')
  console.log('Invalid arguments: No name or number specified')
  console.log('-------------------------------------')
  console.log('Valid arguments:')
  console.log('PASSWORD to see all contacts')
  console.log('PASSWORD NAME NUMBER to add a new contact.')
  console.log('-------------------------------------')
  mongoose.connection.close()
}
else if (process.argv.length === 5){
  const contact = new Contact({
    name: process.argv[3],
    number: process.argv[4],
  })

  contact.save().then(result => {
    console.log('-------------------------------------')
    console.log('New contact saved!')
    console.log('-------------------------------------')
    console.log(`Name:   ${result.name}`)
    console.log(`Number: ${result.number}`)
    console.log('-------------------------------------')
    mongoose.connection.close()
  })
}