adding bunch of stuff for user getting

services/firebaseService.js

@@ -11,8 +11,11 @@
 
 
 // Import the functions you need from the SDKs you need
-import { initializeApp } from "firebase/app";
+import * as firebase from 'firebase/app';
 import { getAnalytics } from "firebase/analytics";
+import { getFirestore } from "firebase/firestore";
+import { browserSessionPersistence, getAuth, setPersistence } from 'firebase/auth';
+
 // TODO: Add SDKs for Firebase products that you want to use
 // https://firebase.google.com/docs/web/setup#available-libraries
 
@@ -29,5 +32,10 @@ const firebaseConfig = {
 };
 
 // Initialize Firebase
-const app = initializeApp(firebaseConfig);
-const analytics = getAnalytics(app);
+const app = firebase.initializeApp(firebaseConfig);
+const analytics = getAnalytics(app);
+
+console.log('initialized firebase')
+
+setPersistence(getAuth(), browserSessionPersistence)
+

services/userService.tsx

@@ -1,5 +1,37 @@
-class UserService {
-  
-}
+import { User as FirUser } from "firebase/auth";
+import { Firestore, getFirestore, doc, getDoc } from "firebase/firestore";
+import { User } from '../models/user'
 
-export {}
+export default class UserService {
+  private db : Firestore = getFirestore()
+  private static collectionName: string = "users"
+
+  constructor() {
+
+  }
+
+  // give back the avatar based on the person's google account avatar or if they set one then
+  getUserAvatar(firstName: string, lastName: string, avatar: string = null) {
+    if (avatar) {
+      return avatar
+    }
+
+    return `https://ui-avatars.com/api/?name=${firstName}+${lastName}`
+  }
+
+  async getUser(userId: string) : Promise<User | null> {
+    const docRef = doc(this.db, UserService.collectionName, userId);
+    const docSnap = await getDoc(docRef);
+
+    if (docSnap.exists()) {
+      console.log("Document data:", docSnap.data());
+      let user: User = docSnap.data() as User
+      return user
+    } else {
+      // doc.data() will be undefined in this case
+      console.log("user not found!");
+      
+      return null
+    }
+  }
+}