const getGQL = url =>
    (query, variables) => fetch(url, {
        method: 'POST',
        headers: {                              //заголовок content-type
            "Content-Type": "application/json",
            ...(localStorage.authToken ? {"Authorization": "Bearer " + localStorage.authToken} : {})
        },
        body: JSON.stringify({query, variables})       //body с ключами query и variables
    }).then(res => res.json())
        .then(data => {
            if (data.data){
                console.log(data);
                return data.data;
            } 
            else throw new Error(JSON.stringify(data.errors))
        })

const backendURL = 'http://shop-roles.asmer.fs.a-level.com.ua'

const gql = getGQL(backendURL + '/graphql')


function register(login, password) {
    return gql(
        `mutation reg($login:String, $password:String) {UserUpsert(user: {login:$login, password: $password}) {_id login} }`,
        { login: login, password: password }
    );
}

register("Natasha", "12345").then(res=>console.log(res));



const  login = (login, password) => {
    return gql(` query log ($login:String, $password:String){
                                        login(login:$login, password: $password) }`,
                                        {login:login, password:password})
}
login("Natasha","12345").then(res=>console.log(res))



const rootCats= () => 
 gql(`query {
    CategoryFind(query: "[{\\"parent\\":null}]"){
        _id name
    }
}`)
rootCats().then(res=>console.log(res))


const findCatById=(_id)=> gql(`query catById($q: String){
    CategoryFindOne(query: $q){
        _id name goods {
            _id name price images {
                url
            }
        }
    }
}`, {q: JSON.stringify([{_id}])} )

findCatById("61715f99ef4e1b3e3b67703e").then(res=>console.log(res))


const findGoodById=(_id)=> gql(`
        query goodById($q: String){
                GoodFindOne(query:$q){
                            _id
                            name
                            price
                            description
                            categories{_id name}
                        
        }
} `, {q: JSON.stringify([{_id}])})

findGoodById("61782338ef4e1b3e3b677079").then(res=>console.log(res))