Firebase.js

var admin = require("firebase-admin");
const firebase = require("firebase");
var serviceAccount = require("./showzone-firebase-service-account.json");

// Initialize Firebase connection
admin.initializeApp({
	credential: admin.credential.cert(serviceAccount),
	databaseURL: "https://showzone-cloud.firebaseio.com",
});

// Ask user their ShowZone email address
let userEmail = "jeremy@showzone.io";
let uid = "nsfoccGeuuQNCeXwsJHPxkYXdcx1";

const checkEmailAddress = () => {
	admin
		.auth()
		.getUserByEmail(userEmail)
		.then((userRecord) => {
			console.log(`ShowZone Membership ID: ${userRecord.uid}`);
		})

		// If userEmail doesn't match a record in Firebase
		.catch((error) => {
			console.log(
				"This email could not be found. Try again or contact team@showzone.io if you continue to have issues."
			);
		});
};
// checkEmailAddress();

// A user may exist, but we need to make sure they are a Pro/paying member
// This function may render the above useless, as you can probably just run this check instead
const checkIfPro = () => {
	admin
		.auth()
		.getUserByEmail(userEmail)
		.then((userRecord) => {
			if (userRecord.customClaims.stripeRole) {
				console.log(
					"This is a pro user. Ask them for their ShowZone membership ID."
				);
				console.log(`The answer should be ${userRecord.uid}`);
			}
		})

		// If userEmail doesn't match a record in Firebase
		.catch((error) => {
			console.log(
				"This email could not be found or you need to upgrade your account (https://showzone.io/pro). Try again or contact team@showzone.io if you continue to have issues."
			);
		});
};
// checkIfPro();

// Once we are sure a user is a Pro subscriber,
// we add meta that shows they have been verified in Discord.
// Note: We need to collect the users Discord username for this (assuming the bot can get thise)
const addUserMetaForDiscord = () => {
	admin
		.auth()
		.getUserByEmail(userEmail)
		.then(({ customClaims: oldClaims }) => {
			admin.auth().setCustomUserClaims(uid, { ...oldClaims, discord: "DiscordUsername" }); // Replace "DiscordUsername" with users actual Discord username
		})
		// If userEmail doesn't match a record in Firebase
		.catch((error) => {
			console.log(error);
		});
};
// addUserMetaForDiscord();

// This runs through all of the users in Firebase
// But we slim that list down a bit by only checking users with claimRoles
// If a user doesn't have a stripe customClaim, but does have a Discord customClaim, we need to remove the "Pro" role from Discord
let cancelledUsers = [];
const listAllUsers = (nextPageToken) => {
	// List batch of users, 1000 at a time.
	admin
		.auth()
		.listUsers(1000, nextPageToken)
		.then((listUsersResult) => {
			listUsersResult.users.forEach((userRecord) => {
                // We only need to check users that have customClaims
				if (userRecord.customClaims) {
                    // If a user has a stripeRole of null, they've cancelled their account
                    if ((userRecord.customClaims.stripeRole == null || userRecord.customClaims.stripeRole == undefined) && userRecord.customClaims.discord) {
					    cancelledUsers.push(userRecord.customClaims.discord);
                    }
				}
			});
			if (listUsersResult.pageToken) {
				// List next batch of users.
				listAllUsers(listUsersResult.pageToken);
			}
		})
		.then (() => {
		    console.log("Remove 'Pro' role from these users:", cancelledUsers);
		})
		.catch((error) => {
			console.log("Error listing users:", error);
		});
};
listAllUsers();