feat: add a book by scanning

lib/config/dependencies.dart

@@ -1,6 +1,8 @@
 import "package:provider/provider.dart";
 import "package:provider/single_child_widget.dart";
 import "package:seshat/data/repositories/auth_repository.dart";
+import "package:seshat/data/repositories/book_instance_repository.dart";
+import "package:seshat/data/repositories/book_repository.dart";
 
 import "package:seshat/data/repositories/owner_repository.dart";
 import "package:seshat/data/services/api_client.dart";
@@ -19,5 +21,9 @@ List<SingleChildWidget> get providers {
     ChangeNotifierProvider(
       create: (context) => AuthRepository(authClient: context.read()),
     ),
+    Provider(create: (context) => BookRepository(apiClient: context.read())),
+    Provider(
+      create: (context) => BookInstanceRepository(apiClient: context.read()),
+    ),
   ];
 }

lib/data/repositories/book_instance_repository.dart

@@ -1 +1,22 @@
-class BookInstanceRepository {}
+import 'package:seshat/data/services/api_client.dart';
+import 'package:seshat/domain/models/bal.dart';
+import 'package:seshat/domain/models/book.dart';
+import 'package:seshat/domain/models/book_instance.dart';
+import 'package:seshat/domain/models/owner.dart';
+import 'package:seshat/utils/result.dart';
+
+class BookInstanceRepository {
+  BookInstanceRepository({required ApiClient apiClient})
+    : _apiClient = apiClient;
+
+  final ApiClient _apiClient;
+
+  Future<Result<BookInstance>> sendBook(
+    Book book,
+    Owner owner,
+    Bal bal,
+    double price,
+  ) async {
+    return await _apiClient.sendBook(book, owner, bal, price);
+  }
+}

lib/data/repositories/book_repository.dart

@@ -1 +1,13 @@
-class BookRepository {}
+import 'package:seshat/data/services/api_client.dart';
+import 'package:seshat/domain/models/book.dart';
+import 'package:seshat/utils/result.dart';
+
+class BookRepository {
+  BookRepository({required ApiClient apiClient}) : _apiClient = apiClient;
+
+  final ApiClient _apiClient;
+
+  Future<Result<Book>> getBookByEAN(String ean) async {
+    return _apiClient.getBookByEAN(ean);
+  }
+}

lib/data/services/api_client.dart

@@ -1,8 +1,12 @@
 import 'dart:convert';
 
+import 'package:flutter/cupertino.dart';
 import 'package:flutter_secure_storage/flutter_secure_storage.dart';
 import 'package:http/http.dart';
 import 'package:seshat/config/constants.dart';
+import 'package:seshat/domain/models/bal.dart';
+import 'package:seshat/domain/models/book.dart';
+import 'package:seshat/domain/models/book_instance.dart';
 import 'package:seshat/domain/models/owner.dart';
 import 'package:seshat/utils/command.dart';
 import 'package:seshat/utils/result.dart';
@@ -23,18 +27,101 @@ class ApiClient {
     );
   }
 
+  Future<Map<String, String>> _getHeaders([
+    Map<String, String>? additionalHeaders,
+  ]) async {
+    await _initStore();
+    final token = await _secureStorage!.read(key: "token");
+    final headers = {"Authorization": "Bearer $token", ...?additionalHeaders};
+    return headers;
+  }
+
+  /*
+ * ===================
+ * =====[ BOOKS ]=====
+ * ===================
+*/
+
+  Future<Result<Book>> getBookByEAN(String ean) async {
+    final client = Client();
+    try {
+      final headers = await _getHeaders();
+      final response = await client.get(
+        Uri.parse("https://$apiBasePath/book/ean/$ean"),
+        headers: headers,
+      );
+      debugPrint("\n\n\n\nGOT : ${response.statusCode}\n\n\n\n");
+      if (response.statusCode == 200) {
+        debugPrint("\n\n\n\nWITH : ${response.body}\n\n\n\n");
+        final json = jsonDecode(response.body);
+        return Result.ok(Book.fromJSON(json));
+      } else {
+        debugPrintStack();
+        return Result.error(Exception("The book was not found"));
+      }
+    } catch (e, stackTrace) {
+      debugPrintStack(stackTrace: stackTrace);
+      return Result.error(Exception("API $e"));
+    } finally {
+      client.close();
+    }
+  }
+
+  /*
+ * =============================
+ * =====[ BOOKS INSTANCES ]=====
+ * =============================
+*/
+
+  Future<Result<BookInstance>> sendBook(
+    Book book,
+    Owner owner,
+    Bal bal,
+    double price,
+  ) async {
+    final client = Client();
+    try {
+      final headers = await _getHeaders({"Content-Type": "application/json"});
+      final body = jsonEncode({
+        "bal_id": bal.id,
+        "book_id": book.id,
+        "owner_id": owner.id,
+        "price": price,
+      });
+      debugPrint("\n\n\n\nSENDING : ${body}\n\n\n\n");
+      final response = await client.post(
+        Uri.parse("https://$apiBasePath/book_instance"),
+        headers: headers,
+        body: body,
+      );
+      if (response.statusCode == 201) {
+        final json = jsonDecode(response.body);
+        debugPrint("\n\n\n\nRECEIVED : ${json}\n\n\n\n");
+        return Result.ok(BookInstance.fromJSON(json));
+      } else if (response.statusCode == 403) {
+        return Result.error(Exception("You don't own that book instance"));
+      } else {
+        return Result.error(Exception("Something wrong happened"));
+      }
+    } catch (e, stack) {
+      debugPrintStack(stackTrace: stack);
+      return Result.error(Exception(e));
+    } finally {
+      client.close();
+    }
+  }
+
   /*
  * ====================
  * =====[ OWNERS ]=====
  * ====================
 */
 
+  /// Call on `/owners` to get a list of all [Owner]s
   Future<Result<List<Owner>>> getOwners() async {
     final client = Client();
     try {
-      await _initStore();
+      final headers = await _getHeaders();
-      final token = await _secureStorage!.read(key: "token");
-      final headers = {"Authorization": "Bearer $token"};
       final response = await client.get(
         Uri.parse("https://$apiBasePath/owners"),
         headers: headers,
@@ -54,6 +141,7 @@ class ApiClient {
     }
   }
 
+  /// Adds an owner to the database
   Future<Result<Owner>> addOwner(
     String firstName,
     String lastName,
@@ -61,12 +149,7 @@ class ApiClient {
   ) async {
     final client = Client();
     try {
-      await _initStore();
+      final headers = await _getHeaders({"Content-Type": "application/json"});
-      final token = await _secureStorage!.read(key: "token");
-      final headers = {
-        "Authorization": "Bearer $token",
-        "Content-Type": "application/json",
-      };
       final body = {
         "first_name": firstName,
         "last_name": lastName,

lib/data/services/auth_client.dart

@@ -20,7 +20,6 @@ class AuthClient {
     try {
       await _initStore();
       bool hasToken = await _secureStorage!.containsKey(key: "token");
-      debugPrint("\n\n\n${hasToken == true} => HAS_TOKEN\n\n\n");
       if (hasToken) {
         var token = await _secureStorage!.read(key: "token");
         var url = Uri.parse("https://$apiBasePath/token-check");
@@ -29,9 +28,6 @@ class AuthClient {
           headers: {"Content-Type": "application/json"},
           body: jsonEncode({"token": token}),
         );
-        debugPrint(
-          "\n\n\n${response.body is String} => ${response.body}\n\n\n",
-        );
 
         if (response.body == "true") {
           return Result.ok(true);
@@ -39,7 +35,6 @@ class AuthClient {
       }
       return Result.ok(false);
     } catch (e) {
-      debugPrint(e.toString());
       return Result.error(Exception(e));
     }
   }
@@ -67,8 +62,6 @@ class AuthClient {
         return Result.error(Exception("Token creation error"));
       }
     } catch (e, stackTrace) {
-      debugPrint(e.toString());
-      debugPrintStack(stackTrace: stackTrace);
       return Result.error(Exception(e));
     } finally {
       client.close();

lib/domain/models/bal.dart

@@ -0,0 +1,5 @@
+class Bal {
+  Bal({required this.id});
+
+  int id;
+}

lib/domain/models/book.dart

@@ -12,4 +12,12 @@ class Book {
   String ean;
   int id;
   String priceNew;
+
+  factory Book.fromJSON(Map<String, dynamic> json) => Book(
+    author: json["author"],
+    ean: json["ean"],
+    id: json["id"],
+    priceNew: json["price_new"],
+    title: json["title"],
+  );
 }

lib/domain/models/book_instance.dart

@@ -5,7 +5,7 @@ class BookInstance {
     required this.id,
     required this.ownerId,
     required this.price,
-    required this.status,
+    required this.available,
     this.soldPrice,
   });
 
@@ -15,14 +15,15 @@ class BookInstance {
   int ownerId;
   double price;
   double? soldPrice;
-  bool status;
+  bool available;
 
   factory BookInstance.fromJSON(Map<String, dynamic> json) => BookInstance(
-    balId: json["balId"],
+    balId: json["bal_id"],
-    bookId: json["bookId"],
+    bookId: json["book_id"],
     id: json["id"],
-    ownerId: json["ownerId"],
+    ownerId: json["owner_id"],
     price: json["price"],
-    status: json["status"],
+    available: json["available"],
+    soldPrice: json["sold_price"] ?? 0,
   );
 }

lib/routing/router.dart

@@ -35,7 +35,11 @@ GoRouter router(AuthRepository authRepository) => GoRouter(
         GoRoute(
           path: Routes.add,
           pageBuilder: (context, state) {
-            final viewModel = AddViewModel(ownerRepository: context.read());
+            final viewModel = AddViewModel(
+              ownerRepository: context.read(),
+              bookRepository: context.read(),
+              bookInstanceRepository: context.read(),
+            );
             return NoTransitionPage(child: AddPage(viewModel: viewModel));
           },
           // routes: [

lib/ui/add_page/view_model/add_view_model.dart

@@ -3,19 +3,30 @@ import 'dart:async';
 import 'package:flutter/foundation.dart';
 import 'package:flutter/material.dart';
 import 'package:mobile_scanner/mobile_scanner.dart';
+import 'package:seshat/data/repositories/book_instance_repository.dart';
+import 'package:seshat/data/repositories/book_repository.dart';
 import 'package:seshat/data/repositories/owner_repository.dart';
+import 'package:seshat/domain/models/bal.dart';
 import 'package:seshat/domain/models/book.dart';
+import 'package:seshat/domain/models/book_instance.dart';
 import 'package:seshat/domain/models/owner.dart';
 import 'package:seshat/utils/command.dart';
 import 'package:seshat/utils/result.dart';
 
 class AddViewModel extends ChangeNotifier {
-  AddViewModel({required OwnerRepository ownerRepository})
+  AddViewModel({
-    : _ownerRepository = ownerRepository {
+    required OwnerRepository ownerRepository,
+    required BookRepository bookRepository,
+    required BookInstanceRepository bookInstanceRepository,
+  }) : _ownerRepository = ownerRepository,
+       _bookRepository = bookRepository,
+       _bookInstanceRepository = bookInstanceRepository {
     load = Command0(_load)..execute();
   }
 
   final OwnerRepository _ownerRepository;
+  final BookRepository _bookRepository;
+  final BookInstanceRepository _bookInstanceRepository;
   late final StreamSubscription sub;
 
   /*
@@ -87,15 +98,18 @@ class AddViewModel extends ChangeNotifier {
   /// Sends an api request with a [bacorde], then gets the [Book] that was
   /// either created or retrieved. Sens the [Book] back wrapped in a [Result].
   Future<Result<Book>> scanBook(BarcodeCapture barcode) async {
-    return Result.ok(
+    var ean = barcode.barcodes.first.rawValue!;
-      Book(
+    var result = await _bookRepository.getBookByEAN(ean);
-        author: "Patrick K. Dewdney",
+    return result;
-        ean: barcode.barcodes.first.rawValue!,
+  }
-        id: 56,
+
-        priceNew: "50 EUR",
+  Future<Result<BookInstance>> sendBook(
-        title: "Les chiens et la charrue",
+    Book book,
-      ),
+    Owner owner,
-    );
+    Bal bal,
+    double price,
+  ) async {
+    return await _bookInstanceRepository.sendBook(book, owner, bal, price);
   }
 
   /// Sends an api request with

lib/ui/add_page/widgets/add_page.dart

@@ -75,6 +75,8 @@ class _AddPageState extends State<AddPage> {
                       );
                       break;
                     case Error():
+                      debugPrintStack();
+                      debugPrint(result.error.toString());
                       ScaffoldMessenger.of(context).showSnackBar(
                         SnackBar(
                           content: Text("Erreur : ${result.error}"),

lib/ui/add_page/widgets/confirmation_popup.dart

@@ -1,6 +1,10 @@
+import 'dart:ffi';
+
 import 'package:flutter/material.dart';
+import 'package:seshat/domain/models/bal.dart';
 import 'package:seshat/domain/models/book.dart';
 import 'package:seshat/ui/add_page/view_model/add_view_model.dart';
+import 'package:seshat/utils/result.dart';
 
 class ConfirmationPopup extends StatefulWidget {
   const ConfirmationPopup({
@@ -22,7 +26,7 @@ class ConfirmationPopup extends StatefulWidget {
 
 class _ConfirmationPopupState extends State<ConfirmationPopup> {
   final GlobalKey<FormState> _formKey = GlobalKey<FormState>();
-  num price = 0;
+  double price = 0;
   @override
   Widget build(BuildContext context) {
     final theme = Theme.of(context);
@@ -67,7 +71,7 @@ class _ConfirmationPopupState extends State<ConfirmationPopup> {
                       text: "Prix à neuf : ",
                       style: TextStyle(fontWeight: FontWeight.bold),
                     ),
-                    TextSpan(text: widget.book.priceNew),
+                    TextSpan(text: widget.book.priceNew.replaceAll("EUR", "€")),
                   ],
                 ),
               ),
@@ -89,7 +93,7 @@ class _ConfirmationPopupState extends State<ConfirmationPopup> {
                         return null;
                       },
                       onSaved: (newValue) {
-                        price = num.parse(newValue!);
+                        price = double.parse(newValue!);
                       },
                     )
                   : SizedBox(),
@@ -111,32 +115,57 @@ class _ConfirmationPopupState extends State<ConfirmationPopup> {
           child: Text("Annuler"),
         ),
         TextButton(
-          onPressed: () {
+          onPressed: () async {
-            switch (widget.viewModel.askPrice) {
+            var result = await widget.viewModel.sendBook(
-              case true:
+              widget.book,
-                if (_formKey.currentState!.validate()) {
+              widget.viewModel.currentOwner!,
-                  _formKey.currentState!.save();
+              Bal(id: 1),
+              price,
+            );
+            switch (result) {
+              case Ok():
+                switch (widget.viewModel.askPrice) {
+                  case true:
+                    if (_formKey.currentState!.validate()) {
+                      _formKey.currentState!.save();
+                      if (context.mounted) {
+                        ScaffoldMessenger.of(context).showSnackBar(
+                          SnackBar(
+                            content: Text(
+                              "\"${widget.book.title}\" ($price€) a bien été enregistré",
+                            ),
+                            behavior: SnackBarBehavior.floating,
+                          ),
+                        );
+                        widget.exitPopup(context);
+                      }
+                    }
+                    break;
+                  case false:
+                    if (context.mounted) {
+                      ScaffoldMessenger.of(context).showSnackBar(
+                        SnackBar(
+                          content: Text(
+                            "\"${widget.book.title}\" (PL) a bien été enregistré",
+                          ),
+                          behavior: SnackBarBehavior.floating,
+                        ),
+                      );
+                      widget.exitPopup(context);
+                    }
+                }
+
+                break;
+              case Error():
+                if (context.mounted) {
                   ScaffoldMessenger.of(context).showSnackBar(
                     SnackBar(
                       content: Text(
-                        "\"${widget.book.title}\" ($price) a bien été enregistré",
+                        "Une erreur est survenue : ${result.error}",
                       ),
-                      behavior: SnackBarBehavior.floating,
                     ),
                   );
-                  widget.exitPopup(context);
                 }
-                break;
-              case false:
-                ScaffoldMessenger.of(context).showSnackBar(
-                  SnackBar(
-                    content: Text(
-                      "\"${widget.book.title}\" (PL) a bien été enregistré",
-                    ),
-                    behavior: SnackBarBehavior.floating,
-                  ),
-                );
-                widget.exitPopup(context);
             }
           },
           child: Text("Valider"),

lib/ui/sell_page/view_model/sell_view_model.dart

@@ -21,7 +21,7 @@ class SellViewModel extends ChangeNotifier {
       id: _scannedBooks.length,
       ownerId: 5,
       price: 5,
-      status: true,
+      available: true,
     );
     _scannedBooks.add(addedBook);
     notifyListeners();

lib/utils/overlay_boundary.dart

@@ -0,0 +1,27 @@
+import 'package:flutter/material.dart';
+
+class OverlayBoundary extends StatefulWidget {
+  const OverlayBoundary({super.key, required this.child});
+
+  final Widget child;
+
+  @override
+  State<OverlayBoundary> createState() => _OverlayBoundaryState();
+}
+
+class _OverlayBoundaryState extends State<OverlayBoundary> {
+  late final OverlayEntry _overlayEntry = OverlayEntry(
+    builder: (context) => widget.child,
+  );
+
+  @override
+  void didUpdateWidget(covariant OverlayBoundary oldWidget) {
+    super.didUpdateWidget(oldWidget);
+    _overlayEntry.markNeedsBuild();
+  }
+
+  @override
+  Widget build(BuildContext context) {
+    return Overlay(initialEntries: [_overlayEntry]);
+  }
+}