From e49a6e311b825c3cf4eda19a77fff8559d8fcfa8 Mon Sep 17 00:00:00 2001
From: Imran Remtulla <imranr98@pm.me>
Date: Sat, 18 Mar 2023 23:09:11 -0400
Subject: [PATCH] Added Telegram App as a Source

---
 lib/app_sources/neutroncode.dart   |  1 -
 lib/app_sources/telegramapp.dart   | 43 ++++++++++++++++++++++++++++++
 lib/providers/source_provider.dart |  2 ++
 3 files changed, 45 insertions(+), 1 deletion(-)
 create mode 100644 lib/app_sources/telegramapp.dart

diff --git a/lib/app_sources/neutroncode.dart b/lib/app_sources/neutroncode.dart
index 0fdbc6c..6baa0a1 100644
--- a/lib/app_sources/neutroncode.dart
+++ b/lib/app_sources/neutroncode.dart
@@ -1,4 +1,3 @@
-import 'dart:convert';
 import 'package:html/parser.dart';
 import 'package:http/http.dart';
 import 'package:obtainium/custom_errors.dart';
diff --git a/lib/app_sources/telegramapp.dart b/lib/app_sources/telegramapp.dart
new file mode 100644
index 0000000..6b249fd
--- /dev/null
+++ b/lib/app_sources/telegramapp.dart
@@ -0,0 +1,43 @@
+import 'package:easy_localization/easy_localization.dart';
+import 'package:html/parser.dart';
+import 'package:http/http.dart';
+import 'package:obtainium/custom_errors.dart';
+import 'package:obtainium/providers/source_provider.dart';
+
+class TelegramApp extends AppSource {
+  TelegramApp() {
+    host = 'telegram.org';
+    name = 'Telegram ${tr('app')}';
+  }
+
+  @override
+  String standardizeURL(String url) {
+    return 'https://$host';
+  }
+
+  @override
+  String? changeLogPageFromStandardUrl(String standardUrl) => null;
+
+  @override
+  Future<APKDetails> getLatestAPKDetails(
+    String standardUrl,
+    Map<String, dynamic> additionalSettings,
+  ) async {
+    Response res = await get(Uri.parse('https://t.me/s/TAndroidAPK'));
+    if (res.statusCode == 200) {
+      var http = parse(res.body);
+      var messages =
+          http.querySelectorAll('.tgme_widget_message_text.js-message_text');
+      var version = messages.isNotEmpty
+          ? messages.last.innerHtml.split('\n').first.trim().split(' ').first
+          : null;
+      if (version == null) {
+        throw NoVersionError();
+      }
+      String? apkUrl = 'https://telegram.org/dl/android/apk';
+      return APKDetails(version, [apkUrl], AppNames('Telegram', 'Telegram'));
+    } else {
+      throw getObtainiumHttpError(res);
+    }
+  }
+}
diff --git a/lib/providers/source_provider.dart b/lib/providers/source_provider.dart
index 5b51c7f..f2b7afd 100644
--- a/lib/providers/source_provider.dart
+++ b/lib/providers/source_provider.dart
@@ -19,6 +19,7 @@ import 'package:obtainium/app_sources/neutroncode.dart';
 import 'package:obtainium/app_sources/signal.dart';
 import 'package:obtainium/app_sources/sourceforge.dart';
 import 'package:obtainium/app_sources/steammobile.dart';
+import 'package:obtainium/app_sources/telegramapp.dart';
 import 'package:obtainium/components/generated_form.dart';
 import 'package:obtainium/custom_errors.dart';
 import 'package:obtainium/mass_app_sources/githubstars.dart';
@@ -339,6 +340,7 @@ class SourceProvider {
     APKMirror(),
     FDroidRepo(),
     SteamMobile(),
+    TelegramApp(),
     NeutronCode(),
     HTML() // This should ALWAYS be the last option as they are tried in order
   ];