(add) awareness of other versions

.gitignore

@@ -1,5 +1,3 @@
-lib/modules/api/key_getter.dart
-
 .VSCodeCounter/
 
 # Miscellaneous

lib/constants/app.dart

@@ -0,0 +1,5 @@
+const String appVersion = "v3.0.1";
+
+String? latestVersion;
+List<String>? supportedVersions;
+String? secureUrl;

lib/constants/types.dart

@@ -9,7 +9,9 @@ enum RequestResult {
   SUCCESS,
   FAILURE,
   FAILURE_USER_PROBLEM,
-  FAILURE_SERVER_PROBLEM
+  FAILURE_SERVER_PROBLEM,
+  FAILURE_IMDB_PROBLEM,
+  FAILURE_VERSION_PROBLEM,
 }
 
 enum ListName {

lib/modules/api/api_requester.dart

@@ -276,7 +276,7 @@ class APIRequester {
         (apiKeys.length == 1 && apiKeys[0] == "XXXXXXXXXX")) {
       var response;
       await key_getter().then((result) async {
-        if (!result) {
+        if (result == RequestResult.FAILURE) {
           if (kDebugMode) {
             print(
                 "You haven't add any api key to the app, so it won't work!\nFor more information check out the documentation at https://github.com/ErfanRht/MovieLab#getting-started");

lib/modules/api/key_getter.dart

@@ -3,17 +3,29 @@ import 'dart:convert';
 import 'package:flutter/foundation.dart';
 import 'package:http/http.dart' as http;
 import 'package:movielab/.api.dart';
+import 'package:movielab/constants/app.dart';
+import 'package:movielab/constants/types.dart';
 
-Future<bool> key_getter() async {
+Future<RequestResult> key_getter() async {
   const String url = "";
   if (url != "") {
     var response = await http.get(Uri.parse(url)).timeout(
           const Duration(seconds: 10),
         );
     if (kDebugMode) {
-      print(jsonDecode(response.body).length);
+      print(
+          "${jsonDecode(response.body)['keys'].length} api keys has been added.");
     }
-    apiKeys = [for (dynamic key in jsonDecode(response.body)) key.toString()];
+    apiKeys = [
+      for (dynamic key in jsonDecode(response.body)['keys']) key.toString()
+    ];
+    supportedVersions = [
+      for (dynamic version in jsonDecode(response.body)['supported_versions'])
+        version.toString()
+    ];
+    latestVersion = jsonDecode(response.body)['latest_version'].toString();
+    secureUrl = jsonDecode(response.body)['secure_url'].toString();
+    return RequestResult.SUCCESS;
   }
-  return true;
+  return RequestResult.FAILURE;
 }

lib/pages/shared/about_page/about_page.dart

@@ -1,5 +1,6 @@
 import 'package:flutter/material.dart';
 import 'package:font_awesome_flutter/font_awesome_flutter.dart';
+import 'package:movielab/constants/app.dart';
 import 'package:movielab/constants/colors.dart';
 import 'package:movielab/pages/shared/app_name.dart';
 import 'package:movielab/widgets/buttons/social_media_button.dart';
@@ -37,7 +38,7 @@ class AboutPage extends StatelessWidget {
               height: 10,
             ),
             Text(
-              "Version 2.0.7",
+              "Version ${appVersion.replaceAll('v', '')}",
               style: TextStyle(
                   fontSize: 17.5,
                   color: Colors.white.withOpacity(0.5),

lib/pages/splash/splash_screen.dart

@@ -1,9 +1,11 @@
 import 'package:flutter/material.dart';
 import 'package:flutter_spinkit/flutter_spinkit.dart';
+import 'package:movielab/constants/app.dart';
 import 'package:movielab/modules/Recommender/Recommender.dart';
 import 'package:movielab/modules/tools/navigate.dart';
 import 'package:movielab/pages/main/main_page.dart';
 import 'package:movielab/widgets/error.dart';
+import 'package:url_launcher/url_launcher.dart';
 import '../../constants/colors.dart';
 import '../../constants/types.dart';
 import '../../modules/tools/system_ui_overlay_style.dart';
@@ -27,6 +29,10 @@ class _SplashScreenState extends State<SplashScreen> {
     _loadData();
   }
 
+  void _launchUrl(final String url) async {
+    if (!await launchUrl(Uri.parse(url))) throw 'Could not launch $url';
+  }
+
   @override
   Widget build(BuildContext context) {
     return Scaffold(
@@ -67,6 +73,15 @@ class _SplashScreenState extends State<SplashScreen> {
             borderWidth: 10,
           ),
         );
+      case RequestResult.FAILURE_VERSION_PROBLEM:
+        return ConnectionErrorWidget(
+          isItTryAgain: false,
+          tryAgain: () {
+            _launchUrl("https://erfanrht.github.io/MovieLab-Intro");
+          },
+          errorText:
+              'The version of MovieLab that you are using is outdated.\nFor more information check out:\n${secureUrl ?? "erfanrht.github.io/movielab-intro"}',
+        );
       default:
         return ConnectionErrorWidget(
           tryAgain: () {
@@ -87,7 +102,17 @@ class _SplashScreenState extends State<SplashScreen> {
       if (result == RequestResult.SUCCESS) {
         recommender();
         getUserData();
-        Navigate.replaceTo(context, const MainPage());
+        if (supportedVersions != null && supportedVersions!.isNotEmpty) {
+          if (supportedVersions!.contains(appVersion)) {
+            Navigate.replaceTo(context, const MainPage());
+          } else {
+            setState(() {
+              _loadingStatus = RequestResult.FAILURE_VERSION_PROBLEM;
+            });
+          }
+        } else {
+          Navigate.replaceTo(context, const MainPage());
+        }
       } else {
         setState(() {
           _loadingStatus = result;

lib/widgets/error.dart

@@ -1,14 +1,15 @@
 import 'package:flutter/material.dart';
-import 'package:google_fonts/google_fonts.dart';
 import 'package:movielab/constants/colors.dart';
 
 class ConnectionErrorWidget extends StatelessWidget {
   final String errorText;
-  final VoidCallback tryAgain;
+  final bool isItTryAgain;
+  final VoidCallback? tryAgain;
   const ConnectionErrorWidget(
       {this.errorText = 'An unexpected error occurred while loading data.',
       required this.tryAgain,
-      Key? key})
+      Key? key,
+      this.isItTryAgain = true})
       : super(key: key);
 
   @override
@@ -25,6 +26,7 @@ class ConnectionErrorWidget extends StatelessWidget {
                   onTap: tryAgain,
                   borderRadius: BorderRadius.circular(10),
                   child: Container(
+                    // width: MediaQuery.of(context).size.width,
                     padding: const EdgeInsets.all(10.0),
                     decoration: BoxDecoration(
                       borderRadius: BorderRadius.circular(10),
@@ -34,24 +36,27 @@ class ConnectionErrorWidget extends StatelessWidget {
                       children: [
                         Text(
                           errorText,
-                          style: TextStyle(
+                          textAlign: TextAlign.center,
+                          softWrap: true,
+                          style: const TextStyle(
                               fontSize: 12.5, fontWeight: FontWeight.w600),
                         ),
                         const SizedBox(height: 5),
-                        Row(
-                            mainAxisAlignment: MainAxisAlignment.center,
-                            children: [
-                              Text(
-                                'Try again',
-                                style: TextStyle(
-                                    fontSize: 12.5,
-                                    fontWeight: FontWeight.w600),
-                              ),
-                              const Icon(
-                                Icons.refresh,
-                                size: 15,
-                              )
-                            ])
+                        if (isItTryAgain)
+                          Row(
+                              mainAxisAlignment: MainAxisAlignment.center,
+                              children: const [
+                                Text(
+                                  'Try again',
+                                  style: TextStyle(
+                                      fontSize: 12.5,
+                                      fontWeight: FontWeight.w600),
+                                ),
+                                Icon(
+                                  Icons.refresh,
+                                  size: 15,
+                                )
+                              ])
                       ],
                     ),
                   )),