schema.js

const {gql} = require('apollo-server-express');
const Movie = require('./models/movie');

const typeDefs = gql `
   type Movie {
     id: ID!
     name: String!
     producer: String!
     rating: Float!
   }
   type Query {
     getMovies: [Movie]
     getMovie(id: ID!): Movie
   }
   type Mutation {
     addMovie(name: String!, producer: String!, rating: Float!): Movie
     updateMovie(name: String!, producer: String!, rating: Float): Movie
     deleteMovie(id: ID!): Movie
   }
`;


const resolvers = {
    Query: {
      getMovies: (parent, args) => {
        return Movie.find({});
      },
      getMovie: (parent, args) => {
        return Movie.findById(args.id);
      }
    },
    Mutation: {
      addMovie: (parent, args) => {
        let movie = new Movie({
          name: args.name,
          producer: args.producer,
          rating: args.rating,
        });
        return movie.save();
      },
      updateMovie: (parent, args) => {
        if (!args.id) return;
          return Movie.findOneAndUpdate(
           {
             _id: args.id
           },
           {
             $set: {
               name: args.name,
               producer: args.producer,
               rating: args.rating,
             }
           }, {new: true}, (err, Movie) => {
             if (err) {
               console.log('Something went wrong when updating the movie');
             } else {
             }
           }
        );
      }
    }
  }

  module.exports = {typeDefs, resolvers};