Sellers Filtering

lib/auth_gate.dart

@@ -1,9 +1,26 @@
 import 'package:firebase_auth/firebase_auth.dart';
 import 'package:flutter/material.dart';
 import 'package:flutterfire_ui/auth.dart';
+import 'package:firebase_database/firebase_database.dart';
+import 'package:cloud_firestore/cloud_firestore.dart';
 
 import 'home.dart';
 
+final FirebaseAuth auth = FirebaseAuth.instance;
+
+Future<void> addUser(String? name, String uid) async {
+  final CollectionReference users =
+      FirebaseFirestore.instance.collection('users');
+  return await users
+      .add({
+        'name': name,
+        'uid': uid,
+        'swipes': 0,
+      })
+      .then((value) => print(""))
+      .catchError((error) => print("ERROR ADDING DATA: $error"));
+}
+
 class AuthGate extends StatelessWidget {
   const AuthGate({super.key});
 
@@ -33,7 +50,9 @@ class AuthGate extends StatelessWidget {
             subtitleBuilder: (context, action) {
               return Padding(
                 padding: const EdgeInsets.symmetric(vertical: 8.0),
-                child: action == AuthAction.signIn ? const Text('Welcome to RUSwipeShare, please sign in!') : const Text('Welcome to RUSwipeShare, please sign up!'),
+                child: action == AuthAction.signIn
+                    ? const Text('Welcome to RUSwipeShare, please sign in!')
+                    : const Text('Welcome to RUSwipeShare, please sign up!'),
               );
             },
             footerBuilder: (context, action) {
@@ -48,6 +67,20 @@ class AuthGate extends StatelessWidget {
           );
         }
 
+        User? user = auth.currentUser;
+
+        if (user != null) {
+          bool isNewUser =
+              user.metadata.creationTime == user.metadata.lastSignInTime;
+
+          if (isNewUser) {
+            final name = user.displayName;
+            final uid = user.uid;
+
+            addUser(name, uid);
+          }
+        }
+
         return const HomeScreen();
       },
     );

lib/main_screen.dart

@@ -1,7 +1,8 @@
 import 'package:flutter/material.dart';
+import 'meetings.dart';
 
 class MainScreen extends StatefulWidget {
-  const MainScreen({ Key? key }) : super(key: key);
+  const MainScreen({Key? key}) : super(key: key);
 
   @override
   _MainScreenState createState() => _MainScreenState();
@@ -12,11 +13,11 @@ class _MainScreenState extends State<MainScreen> {
   Widget build(BuildContext context) {
     return Scaffold(
       appBar: AppBar(
-        title: const Text("Main Screen"),
+        title: const Text("Main Beens"),
       ),
       body: const Center(
-        child: Text("Main Screen"),
+        child: Text("Main Green"),
       ),
     );
   }
-}
+}

lib/meetings.dart

@@ -0,0 +1,47 @@
+import 'dart:ffi';
+
+import 'package:cloud_firestore/cloud_firestore.dart';
+
+class TimeRange {
+  late DateTime startTime;
+  late DateTime endTime;
+
+  TimeRange(this.startTime, this.endTime);
+}
+
+class Seller {
+  String name = "";
+  String uid = "";
+  String location = "";
+  TimeRange availableTime;
+  Int64 price;
+
+  Seller(this.name, this.uid, this.location, this.availableTime, this.price);
+}
+
+class Filter {
+  String? location;
+  Int64? price;
+  TimeRange? meetingTime;
+
+  Filter(this.location, this.price, this.meetingTime);
+}
+
+Future<List<Seller>> getSellers(Filter filter) async {
+  CollectionReference users = FirebaseFirestore.instance.collection('sellers');
+  List<Seller> sellers = List.empty();
+
+  final Query query = users
+      .where('location', isEqualTo: filter.location)
+      .where('price', isEqualTo: filter.price)
+      .where('start-time',
+          isGreaterThanOrEqualTo: filter.meetingTime?.startTime)
+      .where('end-time', isLessThanOrEqualTo: filter.meetingTime?.endTime);
+
+  final QuerySnapshot snapshot = await query.get();
+  for (var doc in snapshot.docs) {
+    sellers.add(Seller(doc["name"], doc["uid"], doc["location"],
+        TimeRange(doc["start-time"], doc["end-time"]), doc["price"]));
+  }
+  return sellers;
+}