Trying to create an if statement for the 'one' and 'two' functions, however when i am creating it i can't seem to make the statement run for each document. So i took it out and ran them buy them selves and they both work fine right now, but not sure how to wrap it in a condition for it to loop through each document in a collection .

any tips or pointers will be massively appreciated

thanks

const {
    initializeApp,
    applicationDefault,
    cert,
} = require("firebase-admin/app");
const {
    getFirestore,
    Timestamp,
    FieldValue,
} = require("firebase-admin/firestore");

const firebaseConfig = {
    xxxx,
};

const serviceAccount = require("xxxxxx.json");

initializeApp({
    credential: cert(serviceAccount),
});

const db = getFirestore();

async function one() {
    const foodRef = db.collection("xxxxx");

    const snapshot = await foodRef.where("item", "==", 2).get();

    if (snapshot.empty) {
        console.log("No matching documents.");
    }

    snapshot.forEach((doc) => {
        console.log(doc.id, "=>", doc.data());

        const res = doc.ref.set(
            {
                fatIntake: "50",
            },
            { merge: true }
        );
    });
}

async function two() {
    const foodRef = db.collection("xxxxxx");

    const snapshot = await foodRef.where("item", "==", 1).get();

    if (snapshot.empty) {
        console.log("No matching documents.");
    }

    snapshot.forEach((doc) => {
        console.log(doc.id, "=>", doc.data());

        const res = doc.ref.set(
            {
                fatIntake: "10",
            },
            { merge: true }
        );
    });
}

one();
two();