Firebase realtime integration

database.rules.json

@@ -1,7 +1,7 @@
 {
   /* Visit https://firebase.google.com/docs/database/security to learn more about security rules. */
   "rules": {
-    ".read": false,
-    ".write": false
+    ".read": true,
+    ".write": true
   }
 }

functions/src/index.ts

@@ -18,14 +18,62 @@ export const helloWorld = functions.https.onRequest(async (request, response) =>
       name: "Radhey",
       email: "[email protected]",
       phone: "8983026208",
+      tags: ["tagId1", "tagId2", "tagId3"]
     },
     kilvishId2: {
       kilvishId: "KilvishId2",
       name: "dummy Name",
       email: "[email protected]",
       phone: "8208567820",
     },
-  })
+  });
+
+  const tagRef = db.ref("tags")
+  await tagRef.update({
+    tagId1: {
+      owner: "kilvishId1",
+      name: "Radhey1",
+      sharedWith: ["kilvishId2"],
+      expenses: ["expenses1", "expenses2", "expenses3"]
+    },
+    tagId2: {
+      owner: "kilvishId1",
+      name: "Radhey2",
+      sharedWith: ["kilvishId2"],
+      expenses: ["expenses1", "expenses2", "expenses3"]
+    },
+    tagId3: {
+      owner: "kilvishId1",
+      name: "Radhey3",
+      sharedWith: ["kilvishId2"],
+      expenses: ["expenses1", "expenses2", "expenses3"]
+    },
+  });
+
+  const expensesRef = db.ref("expenses")
+  await expensesRef.update({
+    expenses1: {
+      timestamp: "2024-02-16 00:45:51.571338",
+      from: "kilvishId1",
+      to: "kilvishId2",
+      amount: 200,
+      tags: ["tag1", "tag2", "tag3"]
+    },
+    expenses2: {
+      timestamp: "2024-02-15 00:45:51.571338",
+      from: "kilvishId2",
+      to: "kilvishId1",
+      amount: 300,
+      tags: ["tag1", "tag2", "tag3"]
+    },
+    expenses3: {
+      timestamp: "2024-02-14 00:45:51.571338",
+      from: "kilvishId1",
+      to: "kilvishId2",
+      amount: 400,
+      tags: ["tag1", "tag2", "tag3"]
+    },
+  });
   console.log(request.params);
   const snapshot = await db.ref("users/kilvishId1").get()
   response.send(snapshot.val())

lib/home_screen.dart

@@ -1,13 +1,12 @@
-import 'dart:io';
-
 import 'package:firebase_auth/firebase_auth.dart';
 import 'package:firebase_database/firebase_database.dart';
 import 'package:flutter/material.dart';
 import 'package:kilvish/import_expense_screen.dart';
-import 'models.dart';
-import 'style.dart';
+
 import 'common_widgets.dart';
 import 'detail_screen.dart';
+import 'models.dart';
+import 'style.dart';
 
 class HomePage extends StatefulWidget {
   const HomePage({Key? key}) : super(key: key);
@@ -38,31 +37,53 @@ class HomePageItem {
 class _HomePageState extends State<HomePage> {
   late List<HomePageItem> _homePageItems;
 
-  Future<void> getData() async {
-    DatabaseReference users = FirebaseDatabase.instance.ref('users');
-    print("users : ${users.key}");
-    // print("users : ${users.get()}");
-    final uu = await users.get();
-    print("REsponse is ${uu}");
-    print("REsponse is ${uu.exists}");
-    print("users : ${await users.get()}");
-    print("users : ${(await users.get()).exists}");
-    print("users : ${(await users.get()).key}");
-    print("users : ${(await users.get()).value}");
+  /// For get Tags info
+  Future<void> getTagsInfo() async {
+    if (FirebaseAuth.instance.currentUser != null) {
+      DatabaseReference user = FirebaseDatabase.instance
+          .ref('users/${FirebaseAuth.instance.currentUser!.uid}');
+      user.onValue.listen((DatabaseEvent event) {
+        if (event.snapshot.exists) {
+          Map<dynamic, dynamic> userInfo = event.snapshot.value as Map;
+          if ((userInfo['tags'] as List).isNotEmpty) {
+            _homePageItems.clear();
+          }
+          (userInfo['tags'] as List).asMap().forEach((key, tagName) async {
+            DataSnapshot tagInfo =
+                await FirebaseDatabase.instance.ref('tags/$tagName').get();
+            if (tagInfo.exists) {
+              Map<dynamic, dynamic> tagInfoMap = tagInfo.value as Map;
+              (tagInfoMap['expenses'] as List)
+                  .asMap()
+                  .forEach((key, expenseName) async {
+                DataSnapshot expensesInfo = await FirebaseDatabase.instance
+                    .ref('expenses/$expenseName')
+                    .get();
+                if (expensesInfo.exists) {
+                  final expense = expensesInfo.value as Map;
+                  _homePageItems.add(HomePageItem(
+                      title: tagName,
+                      lastTransactionAmount: expense['amount'],
+                      balance: 180, // TODO Ask for how to calculate
+                      lastTransactionActor: expense['to'],
+                      lastTransactionDate: DateTime.parse(expense['timestamp']),
+                      type: HomePageItemType.tag));
+                }
+              });
+            }
+          });
+        }
+      });
+    }
   }
 
   @override
   void initState() {
     super.initState();
-    print("Here is init method");
-    getData();
-    // users.onValue.listen((DatabaseEvent event) {
-    //   final data = event.snapshot.value;
-    //   print("Data is here $data");
-    // });
+    getTagsInfo();
     // TODO - subscribe to changes/updates
     // TODO - build list of HomePageItems from local DB
-    /* pseudo code 
+    /* pseudo code
     List<HomePageItem> homePageItems = [];
     for (expense in most_recent_expenses()) { //
       name,type = get_type(expense); // type could be tag or url, name is tag/url name