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}@fullstack2022.s3mkj.mongodb.net/phonebook?retryWrites=true&w=majority`;

mongoose.connect(url);

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

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

if (process.argv.length === 3) {
  Person.find({}).then(result => {
    result.forEach(person => {
      console.log('Phonebook:');
      console.log(person.name, person.number);
    });
    mongoose.connection.close();
  });
} else {
  const person = new Person({
    name: process.argv[3],
    number: process.argv[4]
  });

  person.save().then(result => {
    console.log(`Added ${result.name} number: ${result.number} to phonebook`);
    mongoose.connection.close();
  });
}