feat: integrate Firebase Firestore

- Use Firestore as data source
- Replaced in-memory client
- Added Firebase initialization

Author: fulleni

lib/main.dart

@@ -1,15 +1,18 @@
+import 'package:cloud_firestore/cloud_firestore.dart';
+import 'package:firebase_core/firebase_core.dart';
 import 'package:flutter/material.dart';
 import 'package:flutter_bloc/flutter_bloc.dart';
-import 'package:ht_headlines_inmemory/ht_headlines_inmemory.dart';
+import 'package:ht_headlines_firestore/ht_headlines_firestore.dart';
 import 'package:ht_headlines_repository/ht_headlines_repository.dart';
 import 'package:ht_main/app/app.dart';
 import 'package:ht_main/bloc_observer.dart';
 
-void main() {
+void main() async {
   WidgetsFlutterBinding.ensureInitialized();
+  await Firebase.initializeApp();
   Bloc.observer = const AppBlocObserver();
-
-  final headlinesClient = HtInMemoryHeadlinesClient();
+  final firestore = FirebaseFirestore.instance;
+  final headlinesClient = HtHeadlinesFirestore(firestore: firestore);
   final headlinesRepository = HtHeadlinesRepository(client: headlinesClient);
 
   runApp(App(htHeadlinesRepository: headlinesRepository));

pubspec.lock

@@ -9,6 +9,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "80.0.0"
+  _flutterfire_internals:
+    dependency: transitive
+    description:
+      name: _flutterfire_internals
+      sha256: "7fd72d77a7487c26faab1d274af23fb008763ddc10800261abbfb2c067f183d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.53"
   analyzer:
     dependency: transitive
     description:
@@ -81,6 +89,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.1.2"
+  cloud_firestore:
+    dependency: "direct main"
+    description:
+      name: cloud_firestore
+      sha256: "6b5d0ca6b62830ca5bcf98c5e0c882df32dea3cb523b635db3626333e1c29090"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.6.5"
+  cloud_firestore_platform_interface:
+    dependency: transitive
+    description:
+      name: cloud_firestore_platform_interface
+      sha256: "149c7d2d634178aff8e25eba6cbbbc76bd92f37e0e63727a31952c72bbcb77fb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.6.5"
+  cloud_firestore_web:
+    dependency: transitive
+    description:
+      name: cloud_firestore_web
+      sha256: "05a3c02a7edb3fadeb3f14f491c3a0bbad3ea2c9f22842acbf1d73bceeb93e77"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.4.5"
   collection:
     dependency: transitive
     description:
@@ -177,6 +209,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "2.21.1"
+  fixnum:
+    dependency: transitive
+    description:
+      name: fixnum
+      sha256: b6dc7065e46c974bc7c5f143080a6764ec7a4be6da1285ececdc37be96de53be
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.1"
   flex_color_scheme:
     dependency: "direct main"
     description:
@@ -266,17 +306,17 @@ packages:
     description:
       path: "."
       ref: main
-      resolved-ref: e8f593445383cb02d948d88370cddfc722c769be
+      resolved-ref: "01aa768bcadf8521e77323b310b3b43fc5174e77"
       url: "https://github.com/headlines-toolkit/ht-headlines-client.git"
     source: git
     version: "0.0.0"
-  ht_headlines_inmemory:
+  ht_headlines_firestore:
     dependency: "direct main"
     description:
       path: "."
       ref: main
-      resolved-ref: "1129f48c9af0b3b297e8f6717d88363b3d166890"
-      url: "https://github.com/headlines-toolkit/ht-headlines-inmemory.git"
+      resolved-ref: "8bb296d6968bb4827a95bd7c11dc3ed7dd924f14"
+      url: "https://github.com/headlines-toolkit/ht-headlines-firestore.git"
     source: git
     version: "0.0.0"
   ht_headlines_repository:
@@ -614,6 +654,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.10.1"
+  sprintf:
+    dependency: transitive
+    description:
+      name: sprintf
+      sha256: "1fc9ffe69d4df602376b52949af107d8f5703b77cda567c4d7d86a0693120f23"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   stack_trace:
     dependency: transitive
     description:
@@ -750,6 +798,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "3.1.4"
+  uuid:
+    dependency: transitive
+    description:
+      name: uuid
+      sha256: a5be9ef6618a7ac1e964353ef476418026db906c4facdedaa299b7a2e71690ff
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.5.1"
   vector_math:
     dependency: transitive
     description:

pubspec.yaml

@@ -9,6 +9,7 @@ environment:
 dependencies:
   bloc: ^9.0.0
   bloc_concurrency: ^0.3.0
+  cloud_firestore: ^5.6.5
   equatable: ^2.0.7
   firebase_core: ^3.12.1
   flex_color_scheme: ^8.1.1
@@ -20,9 +21,9 @@ dependencies:
     sdk: flutter
   go_router: ^14.8.1
   google_fonts: ^6.2.1
-  ht_headlines_inmemory:
+  ht_headlines_firestore:
     git:
-      url: https://github.com/headlines-toolkit/ht-headlines-inmemory.git
+      url: https://github.com/headlines-toolkit/ht-headlines-firestore.git
       ref: main
   ht_headlines_repository:
     git: