mongo.js

const mongoose = require('mongoose')

if (process.argv.length < 3) {
  console.log(
    'Please provide the password as an argument: node mongo.js <password>'
  )
  process.exit(1)
}

const password = process.argv[2]

const url = `mongodb+srv://fullstack:${password}@cluster0.robts.mongodb.net/phonebook-app?retryWrites=true&w=majority`

mongoose.connect(url, {
  useNewUrlParser: true,
  useUnifiedTopology: true,
  useFindAndModify: false,
  useCreateIndex: true
})

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

const Person = mongoose.model('Person', personSchema)

if (process.argv.length < 5) {
  Person.find({}).then(persons => {
    console.log('phonebook:')
    persons.forEach(p => {
      console.log(p.name, p.number)
    })
    mongoose.connection.close()
  })
} else {
  const name = process.argv[3]
  const number = process.argv[4]

  const person = new Person({
    name: name,
    number: number
  })
  
  person.save().then(result => {
    console.log(`added ${name} number ${number} to phonebook`)
    mongoose.connection.close()
  })  
}