Updated Filtering

lib/main_screen.dart

@@ -1,6 +1,8 @@
 import 'package:flutter/material.dart';
 import 'meetings.dart';
 
+import 'package:cloud_firestore/cloud_firestore.dart';
+
 class MainScreen extends StatefulWidget {
   const MainScreen({Key? key}) : super(key: key);
 
@@ -11,6 +13,13 @@ class MainScreen extends StatefulWidget {
 class _MainScreenState extends State<MainScreen> {
   @override
   Widget build(BuildContext context) {
+    print("OOOGABOOGA");
+    getSellers(Filter(
+            ["Sbarro"],
+            PriceRange(8, 10),
+            TimeRange(Timestamp.fromDate(DateTime(2023, 2, 26, 12, 50)),
+                Timestamp.fromDate(DateTime(2023, 2, 26, 11, 50)))))
+        .then((value) => {print(value)});
     return Scaffold(
       appBar: AppBar(
         title: const Text("Main Beens"),

lib/meetings.dart

@@ -3,8 +3,8 @@ import 'dart:ffi';
 import 'package:cloud_firestore/cloud_firestore.dart';
 
 class TimeRange {
-  late DateTime startTime;
-  late DateTime endTime;
+  late Timestamp startTime;
+  late Timestamp endTime;
 
   TimeRange(this.startTime, this.endTime);
 }
@@ -16,14 +16,24 @@ class PriceRange {
   PriceRange(this.low, this.high);
 }
 
-class Seller {
+class Seller implements Comparable<Seller> {
   String name = "";
   String uid = "";
-  List<String> location;
+  List<dynamic> location;
   TimeRange availableTime;
   int price;
 
   Seller(this.name, this.uid, this.location, this.availableTime, this.price);
+
+  @override
+  String toString() {
+    return "Name: $name, Price: $price";
+  }
+
+  @override
+  int compareTo(Seller other) {
+    return this.name.compareTo(other.name);
+  }
 }
 
 class Filter {
@@ -36,21 +46,35 @@ class Filter {
 
 Future<List<Seller>> getSellers(Filter filter) async {
   CollectionReference users = FirebaseFirestore.instance.collection('sellers');
-  List<Seller> sellers = List.empty();
+  List<Seller> sellers = List.empty(growable: true);
 
   final Query query = users
       .where('location', arrayContainsAny: filter.locations)
       .where('price',
           isGreaterThanOrEqualTo: filter.price?.low,
-          isLessThanOrEqualTo: filter.price?.high)
-      .where('start-time',
-          isGreaterThanOrEqualTo: filter.meetingTime?.startTime)
-      .where('end-time', isLessThanOrEqualTo: filter.meetingTime?.endTime);
+          isLessThanOrEqualTo: filter.price?.high);
 
   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"]));
+  final startTime = filter.meetingTime?.endTime;
+  final endTime = filter.meetingTime?.startTime;
+
+  if (startTime != null && endTime != null) {
+    var docs = snapshot.docs
+        .where((element) =>
+            startTime.compareTo(element["start-time"]) > 0 ||
+            element["start-time"] == (startTime))
+        .where((element) =>
+            endTime.compareTo(element["end-time"]) < 0 ||
+            element["end-time"] == (endTime));
+    for (var doc in docs) {
+      sellers.add(Seller(doc["name"], doc["uid"], doc["location"],
+          TimeRange(doc["start-time"], doc["end-time"]), doc["price"]));
+    }
+  } else {
+    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;
 }