index.js

import { ApolloServer } from '@apollo/server'
import { startStandaloneServer } from '@apollo/server/standalone'


//db
import db from './_db.js'

//types
import { typeDefs } from './schema.js'

const resolvers = {
    Query: {
        games(){
            return db.games
        },
        game(_, args){
            return db.games.find((game) => game.id === args.id)
        },
        authors(){
            return db.authors
        },
        author(_, args){
            return db.authors.find((author) => author.id === args.id)
        },
        reviews(){
            return db.reviews
        },
        review(_, args){
            return db.reviews.find((review) => review.id === args.id)
        }
        
    },
    Game: {
        reviews(parent) {
            return db.reviews.filter( (r) => r.game_id === parent.id)
        }
    },
    Author: {
        reviews(parent) {
            return db.reviews.filter( (r) => r.author_id === parent.id)
        }
    },
    Review: {
        author(parent){
            return db.authors.find((a) => a.id === parent.author_id)
        },
        game(parent){
            return db.games.find((g) => g.id === parent.game_id)
        }
    },
    Mutation: {
        deleteGame(_, args){
            db.games = db.games.filter((g) => g.id !== args.id)
            return db.games
        },

        addGame(_, args){
            let game = {
                ...args.game,
                id: Math.floor(Math.random()*10000).toString()
            }
            db.games.push(game)
            return game
        },
        updateGame(_, args){
            db.games = db.games.map((g) => {
                if(g.id === args.id){
                    return {...g, ...args.edits}
                }
                return g
            })
            return db.games.find((g) => g.id === args.id)
        }
    },
    
}



// server setup
const server = new ApolloServer({
    typeDefs,  
    resolvers
})

const { url } = await startStandaloneServer(server, {
    listen: {port: 4000}
})

console.log('Server ready at port', 4000)