From dd742882fd312b1431d5710b6bb7927e1fc547e6 Mon Sep 17 00:00:00 2001
From: cuqmbr <me@cuqmbr.xyz>
Date: Sun, 12 Nov 2023 10:01:21 +0200
Subject: [PATCH] add authentication service

---
 lib/constants/jwt_claims.dart                |  10 +
 lib/models/global_instances/global_user.dart |  10 +
 lib/network/authentication_service.dart      | 170 ++++++++
 pubspec.lock                                 | 390 +++++++++++++++++++
 pubspec.yaml                                 |   6 +
 5 files changed, 586 insertions(+)
 create mode 100644 lib/constants/jwt_claims.dart
 create mode 100644 lib/models/global_instances/global_user.dart
 create mode 100644 lib/network/authentication_service.dart

diff --git a/lib/constants/jwt_claims.dart b/lib/constants/jwt_claims.dart
new file mode 100644
index 0000000..935d647
--- /dev/null
+++ b/lib/constants/jwt_claims.dart
@@ -0,0 +1,10 @@
+class JwtClaims {
+  
+  static const String id = 'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/nameidentifier';
+
+  static const String email = 'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/emailaddress';
+
+  static const String phone = 'http://schemas.xmlsoap.org/ws/2005/05/identity/claims/mobilephone';
+
+  static const String roles ='http://schemas.microsoft.com/ws/2008/06/identity/claims/role';
+}
diff --git a/lib/models/global_instances/global_user.dart b/lib/models/global_instances/global_user.dart
new file mode 100644
index 0000000..06168a2
--- /dev/null
+++ b/lib/models/global_instances/global_user.dart
@@ -0,0 +1,10 @@
+class GlobalUser {
+
+  static String? id;
+
+  static String? email;
+
+  static String? phone;
+
+  static List<String>? roles;
+}
diff --git a/lib/network/authentication_service.dart b/lib/network/authentication_service.dart
new file mode 100644
index 0000000..be65417
--- /dev/null
+++ b/lib/network/authentication_service.dart
@@ -0,0 +1,170 @@
+import 'package:graphql/client.dart';
+import 'package:jwt_decoder/jwt_decoder.dart';
+import 'package:shared_preferences/shared_preferences.dart';
+import 'package:shopping_assistant_mobile_client/constants/jwt_claims.dart';
+import 'package:uuid/uuid.dart';
+
+class AuthenticationService {
+  final GraphQLClient client = GraphQLClient(
+    cache: GraphQLCache(),
+    link: HttpLink('https://shopping-assistant-api-dev.azurewebsites.net/graphql'),
+  );
+
+  late SharedPreferences prefs;
+
+  AuthenticationService() {
+    SharedPreferences.getInstance().then((result) => {prefs = result});
+  }
+
+  Future<String> getAccessToken() async {
+    var accessToken = prefs.getString('accessToken');
+    var refreshToken = prefs.getString('refreshToken');
+
+    if (accessToken == null && refreshToken != null) {
+      print('WTF??');
+    } else if (accessToken == null && refreshToken == null) {
+      accessToken = await accessGuest();
+      print('Got new access token $accessToken');
+    } else if (JwtDecoder.isExpired(accessToken!)) {
+      accessToken = await refreshAccessToken();
+      print('Refreshed access token $accessToken');
+    }
+
+    print('Returned access token $accessToken');
+    return accessToken!;
+  }
+
+  Future login(String? email, String? phone, String password) async {
+    const String loginQuery = r'''
+      mutation Login($login: AccessUserModelInput!) {
+        login(login: $login) {
+          accessToken
+          refreshToken
+        }
+      }
+    ''';
+
+    final MutationOptions options = MutationOptions(
+      document: gql(loginQuery),
+      variables: <String, dynamic>{
+        'login': {
+          'email': email,
+          'phone': phone,
+          'password': password,
+        },
+      },
+    );
+
+    final QueryResult result = await client.mutate(options);
+
+    if (result.hasException) {
+      print(result.exception.toString());
+    }
+
+    final accessToken = result.data?['login']['accessToken'] as String;
+    final refreshToken = result.data?['login']['refreshToken'] as String;
+
+    prefs.setString('accessToken', accessToken);
+    prefs.setString('refreshToken', refreshToken);
+  }
+
+  Future<String> accessGuest() async {
+    String? guestId = prefs.getString('guestId');
+    guestId ??= const Uuid().v4();
+    prefs.setString('guestId', guestId);
+
+    const String accessGuestMutation = r'''
+      mutation AccessGuest($guest: AccessGuestModelInput!) {
+          accessGuest(guest: $guest) {
+              accessToken
+              refreshToken
+          }
+      }
+    ''';
+
+    final MutationOptions options = MutationOptions(
+      document: gql(accessGuestMutation),
+      variables: <String, dynamic>{
+        'guest': {'guestId': guestId},
+      },
+    );
+
+    final QueryResult result = await client.mutate(options);
+
+    if (result.hasException) {
+      print(result.exception.toString());
+    }
+
+    final String accessToken =
+        result.data?['accessGuest']['accessToken'] as String;
+    final String refreshToken =
+        result.data?['accessGuest']['refreshToken'] as String;
+
+    prefs.setString('accessToken', accessToken);
+    prefs.setString('refreshToken', refreshToken);
+
+    return accessToken;
+  }
+
+  Future<String> refreshAccessToken() async {
+    var accessToken = prefs.getString('accessToken');
+    var refreshToken = prefs.getString('refreshToken');
+
+    const String refreshAccessTokenMutation = r'''
+      mutation RefreshAccessToken($model: TokensModelInput!) {
+        refreshAccessToken(model: $model) {
+          accessToken
+          refreshToken
+        }
+      }
+    ''';
+
+    final QueryOptions options = QueryOptions(
+      document: gql(refreshAccessTokenMutation),
+      variables: <String, dynamic>{
+        'model': {
+          'accessToken': accessToken,
+          'refreshToken': refreshToken,
+        },
+      },
+    );
+
+    final QueryResult result = await client.query(options);
+
+    if (result.hasException) {
+      print(result.exception.toString());
+    }
+
+    accessToken = result.data?['refreshAccessToken']['accessToken'] as String;
+    refreshToken = result.data?['refreshAccessToken']['refreshToken'] as String;
+
+    prefs.setString('accessToken', accessToken);
+    prefs.setString('refreshToken', refreshToken);
+
+    return accessToken;
+  }
+
+  String getIdFromAccessToken(String accessToken) {
+    var decodedToken = JwtDecoder.decode(accessToken);
+    return decodedToken[JwtClaims.id];
+  }
+
+  String getEmailFromAccessToken(String accessToken) {
+    var decodedToken = JwtDecoder.decode(accessToken);
+    return decodedToken[JwtClaims.email];
+  }
+
+  String getPhoneFromAccessToken(String accessToken) {
+    var decodedToken = JwtDecoder.decode(accessToken);
+    return decodedToken[JwtClaims.phone];
+  }
+
+  // List<String> getRolesFromAccessToken(String accessToken) {
+  //   var decodedToken = JwtDecoder.decode(accessToken);
+  //   List<String> roles = [];
+  //   for (var role in decodedToken[JwtClaims.roles] as List<dynamic>) {
+  //     roles.add(role);
+  //   }
+  //   return roles;
+  // }
+}
diff --git a/pubspec.lock b/pubspec.lock
index 0b808da..41b9539 100644
--- a/pubspec.lock
+++ b/pubspec.lock
@@ -1,6 +1,14 @@
 # Generated by pub
 # See https://dart.dev/tools/pub/glossary#lockfile
 packages:
+  args:
+    dependency: transitive
+    description:
+      name: args
+      sha256: eef6c46b622e0494a36c5a12d10d77fb4e855501a91c1b9ef9339326e58f0596
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.2"
   async:
     dependency: transitive
     description:
@@ -41,6 +49,30 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.17.2"
+  connectivity_plus:
+    dependency: transitive
+    description:
+      name: connectivity_plus
+      sha256: b502a681ba415272ecc41400bd04fe543ed1a62632137dc84d25a91e7746f55f
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.1"
+  connectivity_plus_platform_interface:
+    dependency: transitive
+    description:
+      name: connectivity_plus_platform_interface
+      sha256: cf1d1c28f4416f8c654d7dc3cd638ec586076255d407cef3ddbdaf178272a71a
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.2.4"
+  crypto:
+    dependency: transitive
+    description:
+      name: crypto
+      sha256: ff625774173754681d66daaf4a448684fb04b78f902da9cb3d308c19cc5e8bab
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.3"
   cupertino_icons:
     dependency: "direct main"
     description:
@@ -49,6 +81,14 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.0.6"
+  dbus:
+    dependency: transitive
+    description:
+      name: dbus
+      sha256: "6f07cba3f7b3448d42d015bfd3d53fe12e5b36da2423f23838efc1d5fb31a263"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.7.8"
   fake_async:
     dependency: transitive
     description:
@@ -57,11 +97,35 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.3.1"
+  ffi:
+    dependency: transitive
+    description:
+      name: ffi
+      sha256: "7bf0adc28a23d395f19f3f1eb21dd7cfd1dd9f8e1c50051c069122e6853bc878"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.0"
+  file:
+    dependency: transitive
+    description:
+      name: file
+      sha256: "5fc22d7c25582e38ad9a8515372cd9a93834027aacf1801cf01164dac0ffa08c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "7.0.0"
   flutter:
     dependency: "direct main"
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_hooks:
+    dependency: transitive
+    description:
+      name: flutter_hooks
+      sha256: "7c8db779c2d1010aa7f9ea3fbefe8f86524fcb87b69e8b0af31e1a4b55422dec"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.20.3"
   flutter_lints:
     dependency: "direct dev"
     description:
@@ -75,6 +139,123 @@ packages:
     description: flutter
     source: sdk
     version: "0.0.0"
+  flutter_web_plugins:
+    dependency: transitive
+    description: flutter
+    source: sdk
+    version: "0.0.0"
+  gql:
+    dependency: transitive
+    description:
+      name: gql
+      sha256: e5225e3be4d7eb4027406ab07cb68ad3a089deb3f7f6dc46edbdec78f2e5549f
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1-alpha+1696717343881"
+  gql_dedupe_link:
+    dependency: transitive
+    description:
+      name: gql_dedupe_link
+      sha256: "79625bc8029755ce6b26483adf0255c6b6114acc56e7ef81469a99f1ce2296db"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.4-alpha+1696717344020"
+  gql_error_link:
+    dependency: transitive
+    description:
+      name: gql_error_link
+      sha256: bfdb543137da89448cc5d003fd029c2e8718931d39d4a7dedb16f9169862fbb9
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  gql_exec:
+    dependency: transitive
+    description:
+      name: gql_exec
+      sha256: da419a3ebaae7672ed662c42d754ffba996347af7fe0ca031f1dd699334994d8
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1-alpha+1696717343896"
+  gql_http_link:
+    dependency: transitive
+    description:
+      name: gql_http_link
+      sha256: "0789d397d46ce274942fcc73e18a080cd2584296dadc33d8ae53d0666d7fe981"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1"
+  gql_link:
+    dependency: transitive
+    description:
+      name: gql_link
+      sha256: bcbb09ae8b200f413aa2d21fbf6ce4c4ac1ac443e81c612f29ef1587f4c84122
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.1-alpha+1696717343909"
+  gql_transform_link:
+    dependency: transitive
+    description:
+      name: gql_transform_link
+      sha256: "0645fdd874ca1be695fd327271fdfb24c0cd6fa40774a64b946062f321a59709"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.0"
+  graphql:
+    dependency: "direct main"
+    description:
+      name: graphql
+      sha256: "4ac531068107dffef188c74e7ff662777b729e9d5e0686f71623d4af1e3751c8"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.2.0-beta.6"
+  graphql_flutter:
+    dependency: "direct main"
+    description:
+      name: graphql_flutter
+      sha256: "39b5e830bc654ab02c5b776c31675841d1a8c95840fdd284efba713b1d47e65d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.2.0-beta.6"
+  hive:
+    dependency: transitive
+    description:
+      name: hive
+      sha256: "8dcf6db979d7933da8217edcec84e9df1bdb4e4edc7fc77dbd5aa74356d6d941"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.3"
+  http:
+    dependency: "direct main"
+    description:
+      name: http
+      sha256: "759d1a329847dd0f39226c688d3e06a6b8679668e350e2891a6474f8b4bb8525"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.1.0"
+  http_parser:
+    dependency: transitive
+    description:
+      name: http_parser
+      sha256: "2aa08ce0341cc9b354a498388e30986515406668dbcc4f7c950c3e715496693b"
+      url: "https://pub.dev"
+    source: hosted
+    version: "4.0.2"
+  js:
+    dependency: transitive
+    description:
+      name: js
+      sha256: f2c445dce49627136094980615a031419f7f3eb393237e4ecd97ac15dea343f3
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.6.7"
+  jwt_decoder:
+    dependency: "direct main"
+    description:
+      name: jwt_decoder
+      sha256: "54774aebf83f2923b99e6416b4ea915d47af3bde56884eb622de85feabbc559f"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.0.1"
   lints:
     dependency: transitive
     description:
@@ -107,6 +288,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.9.1"
+  nm:
+    dependency: transitive
+    description:
+      name: nm
+      sha256: "2c9aae4127bdc8993206464fcc063611e0e36e72018696cd9631023a31b24254"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.5.0"
+  normalize:
+    dependency: transitive
+    description:
+      name: normalize
+      sha256: "8a60e37de5b608eeaf9b839273370c71ebba445e9f73b08eee7725e0d92dbc43"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.8.2+1"
   path:
     dependency: transitive
     description:
@@ -115,6 +312,142 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "1.8.3"
+  path_provider:
+    dependency: transitive
+    description:
+      name: path_provider
+      sha256: a1aa8aaa2542a6bc57e381f132af822420216c80d4781f7aa085ca3229208aaa
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  path_provider_android:
+    dependency: transitive
+    description:
+      name: path_provider_android
+      sha256: e595b98692943b4881b219f0a9e3945118d3c16bd7e2813f98ec6e532d905f72
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_foundation:
+    dependency: transitive
+    description:
+      name: path_provider_foundation
+      sha256: "19314d595120f82aca0ba62787d58dde2cc6b5df7d2f0daf72489e38d1b57f2d"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
+  path_provider_linux:
+    dependency: transitive
+    description:
+      name: path_provider_linux
+      sha256: f7a1fe3a634fe7734c8d3f2766ad746ae2a2884abe22e241a8b301bf5cac3279
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  path_provider_platform_interface:
+    dependency: transitive
+    description:
+      name: path_provider_platform_interface
+      sha256: "94b1e0dd80970c1ce43d5d4e050a9918fce4f4a775e6142424c30a29a363265c"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.1"
+  path_provider_windows:
+    dependency: transitive
+    description:
+      name: path_provider_windows
+      sha256: "8bc9f22eee8690981c22aa7fc602f5c85b497a6fb2ceb35ee5a5e5ed85ad8170"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  petitparser:
+    dependency: transitive
+    description:
+      name: petitparser
+      sha256: cb3798bef7fc021ac45b308f4b51208a152792445cce0448c9a4ba5879dd8750
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.4.0"
+  platform:
+    dependency: transitive
+    description:
+      name: platform
+      sha256: "0a279f0707af40c890e80b1e9df8bb761694c074ba7e1d4ab1bc4b728e200b59"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.3"
+  plugin_platform_interface:
+    dependency: transitive
+    description:
+      name: plugin_platform_interface
+      sha256: da3fdfeccc4d4ff2da8f8c556704c08f912542c5fb3cf2233ed75372384a034d
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.1.6"
+  rxdart:
+    dependency: transitive
+    description:
+      name: rxdart
+      sha256: "0c7c0cedd93788d996e33041ffecda924cc54389199cde4e6a34b440f50044cb"
+      url: "https://pub.dev"
+    source: hosted
+    version: "0.27.7"
+  shared_preferences:
+    dependency: "direct main"
+    description:
+      name: shared_preferences
+      sha256: "81429e4481e1ccfb51ede496e916348668fd0921627779233bd24cc3ff6abd02"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.2"
+  shared_preferences_android:
+    dependency: transitive
+    description:
+      name: shared_preferences_android
+      sha256: "8568a389334b6e83415b6aae55378e158fbc2314e074983362d20c562780fb06"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  shared_preferences_foundation:
+    dependency: transitive
+    description:
+      name: shared_preferences_foundation
+      sha256: "7bf53a9f2d007329ee6f3df7268fd498f8373602f943c975598bbb34649b62a7"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.4"
+  shared_preferences_linux:
+    dependency: transitive
+    description:
+      name: shared_preferences_linux
+      sha256: "9f2cbcf46d4270ea8be39fa156d86379077c8a5228d9dfdb1164ae0bb93f1faa"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
+  shared_preferences_platform_interface:
+    dependency: transitive
+    description:
+      name: shared_preferences_platform_interface
+      sha256: d4ec5fc9ebb2f2e056c617112aa75dcf92fc2e4faaf2ae999caa297473f75d8a
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.1"
+  shared_preferences_web:
+    dependency: transitive
+    description:
+      name: shared_preferences_web
+      sha256: d762709c2bbe80626ecc819143013cc820fa49ca5e363620ee20a8b15a3e3daf
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.2.1"
+  shared_preferences_windows:
+    dependency: transitive
+    description:
+      name: shared_preferences_windows
+      sha256: "841ad54f3c8381c480d0c9b508b89a34036f512482c407e6df7a9c4aa2ef8f59"
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.3.2"
   sky_engine:
     dependency: transitive
     description: flutter
@@ -168,6 +501,22 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.6.0"
+  typed_data:
+    dependency: transitive
+    description:
+      name: typed_data
+      sha256: facc8d6582f16042dd49f2463ff1bd6e2c9ef9f3d5da3d9b087e244a7b564b3c
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.3.2"
+  uuid:
+    dependency: "direct main"
+    description:
+      name: uuid
+      sha256: "648e103079f7c64a36dc7d39369cabb358d377078a051d6ae2ad3aa539519313"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.0.7"
   vector_math:
     dependency: transitive
     description:
@@ -184,5 +533,46 @@ packages:
       url: "https://pub.dev"
     source: hosted
     version: "0.1.4-beta"
+  web_socket_channel:
+    dependency: transitive
+    description:
+      name: web_socket_channel
+      sha256: d88238e5eac9a42bb43ca4e721edba3c08c6354d4a53063afaa568516217621b
+      url: "https://pub.dev"
+    source: hosted
+    version: "2.4.0"
+  win32:
+    dependency: transitive
+    description:
+      name: win32
+      sha256: "350a11abd2d1d97e0cc7a28a81b781c08002aa2864d9e3f192ca0ffa18b06ed3"
+      url: "https://pub.dev"
+    source: hosted
+    version: "5.0.9"
+  xdg_directories:
+    dependency: transitive
+    description:
+      name: xdg_directories
+      sha256: "589ada45ba9e39405c198fe34eb0f607cddb2108527e658136120892beac46d2"
+      url: "https://pub.dev"
+    source: hosted
+    version: "1.0.3"
+  xml:
+    dependency: transitive
+    description:
+      name: xml
+      sha256: "5bc72e1e45e941d825fd7468b9b4cc3b9327942649aeb6fc5cdbf135f0a86e84"
+      url: "https://pub.dev"
+    source: hosted
+    version: "6.3.0"
+  yaml:
+    dependency: transitive
+    description:
+      name: yaml
+      sha256: "75769501ea3489fca56601ff33454fe45507ea3bfb014161abc3b43ae25989d5"
+      url: "https://pub.dev"
+    source: hosted
+    version: "3.1.2"
 sdks:
   dart: ">=3.1.4 <4.0.0"
+  flutter: ">=3.7.0"
diff --git a/pubspec.yaml b/pubspec.yaml
index 40fa083..0840073 100644
--- a/pubspec.yaml
+++ b/pubspec.yaml
@@ -35,6 +35,12 @@ dependencies:
   # The following adds the Cupertino Icons font to your application.
   # Use with the CupertinoIcons class for iOS style icons.
   cupertino_icons: ^1.0.2
+  http: ^1.1.0
+  jwt_decoder: ^2.0.1
+  graphql: ^5.2.0-beta.6
+  shared_preferences: ^2.2.2
+  uuid: ^3.0.7
+  graphql_flutter: ^5.2.0-beta.6
 
 dev_dependencies:
   flutter_test: