From 8b55be1b9c5a6e2764d6c6a3d84d2dd90ac2c42e Mon Sep 17 00:00:00 2001
From: maciejrusek <git@mrusek.pl>
Date: Thu, 12 Mar 2026 23:24:14 +0100
Subject: [PATCH] Added some logic

---
 backend/apps/authentication/serializers.py    | 37 +++++++++++++++++++
 backend/apps/authentication/urls.py           |  7 +++-
 backend/apps/authentication/views.py          |  8 +++-
 backend/apps/authors/__init__.py              |  0
 backend/apps/authors/admin.py                 |  3 ++
 backend/apps/authors/apps.py                  |  5 +++
 backend/apps/authors/migrations/__init__.py   |  0
 backend/apps/authors/models.py                |  6 +++
 backend/apps/authors/serializers.py           |  0
 backend/apps/authors/tests.py                 |  3 ++
 backend/apps/authors/urls.py                  |  9 +++++
 backend/apps/authors/views.py                 | 20 ++++++++++
 backend/apps/books/__init__.py                |  0
 backend/apps/books/admin.py                   |  3 ++
 backend/apps/books/apps.py                    |  5 +++
 backend/apps/books/migrations/__init__.py     |  0
 backend/apps/books/models.py                  | 11 ++++++
 backend/apps/books/serializers.py             | 25 +++++++++++++
 backend/apps/books/tests.py                   |  3 ++
 backend/apps/books/urls.py                    |  9 +++++
 backend/apps/books/views.py                   | 19 ++++++++++
 backend/apps/categories/__init__.py           |  0
 backend/apps/categories/admin.py              |  3 ++
 backend/apps/categories/apps.py               |  5 +++
 .../apps/categories/migrations/__init__.py    |  0
 backend/apps/categories/models.py             |  3 ++
 backend/apps/categories/tests.py              |  3 ++
 backend/apps/categories/views.py              |  3 ++
 backend/apps/notes/__init__.py                |  0
 backend/apps/notes/admin.py                   |  3 ++
 backend/apps/notes/apps.py                    |  5 +++
 backend/apps/notes/migrations/__init__.py     |  0
 backend/apps/notes/models.py                  |  3 ++
 backend/apps/notes/tests.py                   |  3 ++
 backend/apps/notes/views.py                   |  3 ++
 backend/apps/shelf_items/__init__.py          |  0
 backend/apps/shelf_items/admin.py             |  3 ++
 backend/apps/shelf_items/apps.py              |  5 +++
 .../apps/shelf_items/migrations/__init__.py   |  0
 backend/apps/shelf_items/models.py            |  3 ++
 backend/apps/shelf_items/tests.py             |  3 ++
 backend/apps/shelf_items/views.py             |  3 ++
 backend/apps/shelves/views.py                 |  6 ++-
 backend/apps/urls.py                          |  6 ++-
 backend/apps/user/apps.py                     |  6 +++
 backend/apps/user/signals.py                  |  0
 backend/config/django/base.py                 |  2 +
 backend/requirements.txt                      |  3 +-
 48 files changed, 240 insertions(+), 7 deletions(-)
 create mode 100644 backend/apps/authentication/serializers.py
 create mode 100644 backend/apps/authors/__init__.py
 create mode 100644 backend/apps/authors/admin.py
 create mode 100644 backend/apps/authors/apps.py
 create mode 100644 backend/apps/authors/migrations/__init__.py
 create mode 100644 backend/apps/authors/models.py
 create mode 100644 backend/apps/authors/serializers.py
 create mode 100644 backend/apps/authors/tests.py
 create mode 100644 backend/apps/authors/urls.py
 create mode 100644 backend/apps/authors/views.py
 create mode 100644 backend/apps/books/__init__.py
 create mode 100644 backend/apps/books/admin.py
 create mode 100644 backend/apps/books/apps.py
 create mode 100644 backend/apps/books/migrations/__init__.py
 create mode 100644 backend/apps/books/models.py
 create mode 100644 backend/apps/books/serializers.py
 create mode 100644 backend/apps/books/tests.py
 create mode 100644 backend/apps/books/urls.py
 create mode 100644 backend/apps/books/views.py
 create mode 100644 backend/apps/categories/__init__.py
 create mode 100644 backend/apps/categories/admin.py
 create mode 100644 backend/apps/categories/apps.py
 create mode 100644 backend/apps/categories/migrations/__init__.py
 create mode 100644 backend/apps/categories/models.py
 create mode 100644 backend/apps/categories/tests.py
 create mode 100644 backend/apps/categories/views.py
 create mode 100644 backend/apps/notes/__init__.py
 create mode 100644 backend/apps/notes/admin.py
 create mode 100644 backend/apps/notes/apps.py
 create mode 100644 backend/apps/notes/migrations/__init__.py
 create mode 100644 backend/apps/notes/models.py
 create mode 100644 backend/apps/notes/tests.py
 create mode 100644 backend/apps/notes/views.py
 create mode 100644 backend/apps/shelf_items/__init__.py
 create mode 100644 backend/apps/shelf_items/admin.py
 create mode 100644 backend/apps/shelf_items/apps.py
 create mode 100644 backend/apps/shelf_items/migrations/__init__.py
 create mode 100644 backend/apps/shelf_items/models.py
 create mode 100644 backend/apps/shelf_items/tests.py
 create mode 100644 backend/apps/shelf_items/views.py
 create mode 100644 backend/apps/user/signals.py

diff --git a/backend/apps/authentication/serializers.py b/backend/apps/authentication/serializers.py
new file mode 100644
index 0000000..c8cad44
--- /dev/null
+++ b/backend/apps/authentication/serializers.py
@@ -0,0 +1,37 @@
+from django.contrib.auth.password_validation import validate_password as django_validate_password
+from django.core.exceptions import ValidationError
+from rest_framework import serializers
+from apps.user.models import User
+
+
+class RegisterSerializer(serializers.ModelSerializer):
+    
+    class Meta:
+        model = User
+        fields = ["username", "email", "password"]
+        extra_kwargs = {
+            "password": {"write_only": True}
+        }
+
+    def validate_email(self, value):
+        if User.objects.filter(email=value).exists():
+            raise serializers.ValidationError("Email already taken")
+        return value
+
+    def validate_password(self, value):
+        try:
+            django_validate_password(value)
+        except ValidationError as error:
+            raise serializers.ValidationError(error.messages)
+
+        return value
+
+    def create(self, validated_data):
+        user = User.objects.create_user(
+            validated_data["username"], 
+            validated_data["email"], 
+            validated_data["password"]
+        )
+        
+        
+        return user
\ No newline at end of file
diff --git a/backend/apps/authentication/urls.py b/backend/apps/authentication/urls.py
index 532b54c..a911bee 100644
--- a/backend/apps/authentication/urls.py
+++ b/backend/apps/authentication/urls.py
@@ -5,9 +5,14 @@ from rest_framework_simplejwt.views import (
     TokenVerifyView
 )
 
+from apps.authentication.views import RegisterView 
+
 urlpatterns = [
     path('login/', TokenObtainPairView.as_view(), name='token_obtain_pair'),
-    #path('signup/', ),
+    path('register',  RegisterView.as_view()),
+    
+
+
 
     path('refresh/', TokenRefreshView.as_view(), name='token_refresh'),
     path('verify/', TokenVerifyView.as_view(), name='token_verify'),
diff --git a/backend/apps/authentication/views.py b/backend/apps/authentication/views.py
index 91ea44a..3e145ed 100644
--- a/backend/apps/authentication/views.py
+++ b/backend/apps/authentication/views.py
@@ -1,3 +1,9 @@
-from django.shortcuts import render
+from rest_framework import generics
+
+from apps.authentication.serializers import RegisterSerializer
 
 # Create your views here.
+class RegisterView(generics.CreateAPIView):
+    serializer_class = RegisterSerializer
+    authentication_classes = []
+    permission_classes = []
\ No newline at end of file
diff --git a/backend/apps/authors/__init__.py b/backend/apps/authors/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/authors/admin.py b/backend/apps/authors/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/apps/authors/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/apps/authors/apps.py b/backend/apps/authors/apps.py
new file mode 100644
index 0000000..ff70d06
--- /dev/null
+++ b/backend/apps/authors/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class AuthorsConfig(AppConfig):
+    name = 'apps.authors'
diff --git a/backend/apps/authors/migrations/__init__.py b/backend/apps/authors/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/authors/models.py b/backend/apps/authors/models.py
new file mode 100644
index 0000000..f4980e5
--- /dev/null
+++ b/backend/apps/authors/models.py
@@ -0,0 +1,6 @@
+from django.db import models
+from apps.user.models import User
+
+class Author(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="Authors")
+    name = models.CharField(max_length=255)
\ No newline at end of file
diff --git a/backend/apps/authors/serializers.py b/backend/apps/authors/serializers.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/authors/tests.py b/backend/apps/authors/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/apps/authors/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/apps/authors/urls.py b/backend/apps/authors/urls.py
new file mode 100644
index 0000000..70042c4
--- /dev/null
+++ b/backend/apps/authors/urls.py
@@ -0,0 +1,9 @@
+from rest_framework.routers import DefaultRouter
+
+from apps.authors.views import AuthorsViewSet
+
+urlpatterns = []
+
+router = DefaultRouter()
+router.register("", viewset=AuthorsViewSet)
+urlpatterns += router.urls
\ No newline at end of file
diff --git a/backend/apps/authors/views.py b/backend/apps/authors/views.py
new file mode 100644
index 0000000..ba890c7
--- /dev/null
+++ b/backend/apps/authors/views.py
@@ -0,0 +1,20 @@
+from rest_framework import viewsets
+
+from apps.authors.models import Author
+from apps.authors.serializers import AuthorSerializer
+from rest_framework import viewsets 
+from rest_framework.permissions import IsAuthenticated
+from rest_framework_simplejwt.authentication import JWTAuthentication
+
+class AuthorsViewSet(viewsets.ModelViewSet):
+    queryset = Author.objects.select_related("shelf")
+    serializer_class = AuthorSerializer
+
+    authentication_classes = [JWTAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        return self.queryset.filter(
+            shelf__user_id=self.request.user.pk
+        )
+
diff --git a/backend/apps/books/__init__.py b/backend/apps/books/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/books/admin.py b/backend/apps/books/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/apps/books/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/apps/books/apps.py b/backend/apps/books/apps.py
new file mode 100644
index 0000000..3158566
--- /dev/null
+++ b/backend/apps/books/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class BooksConfig(AppConfig):
+    name = 'apps.books'
diff --git a/backend/apps/books/migrations/__init__.py b/backend/apps/books/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/books/models.py b/backend/apps/books/models.py
new file mode 100644
index 0000000..19bac53
--- /dev/null
+++ b/backend/apps/books/models.py
@@ -0,0 +1,11 @@
+from django.db import models
+
+from apps.shelves.models import Shelf
+from apps.authors.models import Author
+from apps.user.models import User
+
+class Book(models.Model):
+    user = models.ForeignKey(User, on_delete=models.CASCADE, related_name="Authors")
+    authors = models.ManyToManyField(Author, related_name="books")
+    name = models.CharField(max_length=255)
+    isbn = models.CharField(max_length=13)
\ No newline at end of file
diff --git a/backend/apps/books/serializers.py b/backend/apps/books/serializers.py
new file mode 100644
index 0000000..c83261b
--- /dev/null
+++ b/backend/apps/books/serializers.py
@@ -0,0 +1,25 @@
+from rest_framework import serializers
+
+from apps.books.models import Book
+from apps.shelves.serializers import ShelfSerializer
+from apps.shelves.models import Shelf
+
+class BookSerializer(serializers.ModelSerializer):
+    #shelf = ShelfSerializer(read_only=True)
+    #shelf_id = serializers.PrimaryKeyRelatedField(
+        #queryset=Shelf.objects.all(),
+        #source="shelf", 
+        #write_only=True
+    #)
+    
+    
+    class Meta: 
+        model = Book
+        fields = [
+            "id",
+            "name",
+            "isbn", 
+            #"shelf",
+            #"shelf_id"
+        ]
+        read_only_fields = ["id"]
\ No newline at end of file
diff --git a/backend/apps/books/tests.py b/backend/apps/books/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/apps/books/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/apps/books/urls.py b/backend/apps/books/urls.py
new file mode 100644
index 0000000..41d1a3a
--- /dev/null
+++ b/backend/apps/books/urls.py
@@ -0,0 +1,9 @@
+from rest_framework.routers import DefaultRouter
+
+from apps.books.views import BooksViewSet
+
+urlpatterns = []
+
+router = DefaultRouter()
+router.register("", viewset=BooksViewSet)
+urlpatterns += router.urls
\ No newline at end of file
diff --git a/backend/apps/books/views.py b/backend/apps/books/views.py
new file mode 100644
index 0000000..08f78b6
--- /dev/null
+++ b/backend/apps/books/views.py
@@ -0,0 +1,19 @@
+from rest_framework import viewsets
+
+from apps.books.models import Book
+from apps.books.serializers import BookSerializer
+from rest_framework import viewsets 
+from rest_framework.permissions import IsAuthenticated
+from rest_framework_simplejwt.authentication import JWTAuthentication
+
+class BooksViewSet(viewsets.ModelViewSet):
+    queryset = Book.objects.prefetch_related("authors")
+    serializer_class = BookSerializer 
+
+    authentication_classes = [JWTAuthentication]
+    permission_classes = [IsAuthenticated]
+
+    def get_queryset(self):
+        return self.queryset.filter(
+            shelf__user_id=self.request.user.pk
+        )
diff --git a/backend/apps/categories/__init__.py b/backend/apps/categories/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/categories/admin.py b/backend/apps/categories/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/apps/categories/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/apps/categories/apps.py b/backend/apps/categories/apps.py
new file mode 100644
index 0000000..0ab5f86
--- /dev/null
+++ b/backend/apps/categories/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class CategoriesConfig(AppConfig):
+    name = 'categories'
diff --git a/backend/apps/categories/migrations/__init__.py b/backend/apps/categories/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/categories/models.py b/backend/apps/categories/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/backend/apps/categories/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/backend/apps/categories/tests.py b/backend/apps/categories/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/apps/categories/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/apps/categories/views.py b/backend/apps/categories/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/backend/apps/categories/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/backend/apps/notes/__init__.py b/backend/apps/notes/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/notes/admin.py b/backend/apps/notes/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/apps/notes/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/apps/notes/apps.py b/backend/apps/notes/apps.py
new file mode 100644
index 0000000..b6155ac
--- /dev/null
+++ b/backend/apps/notes/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class NotesConfig(AppConfig):
+    name = 'notes'
diff --git a/backend/apps/notes/migrations/__init__.py b/backend/apps/notes/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/notes/models.py b/backend/apps/notes/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/backend/apps/notes/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/backend/apps/notes/tests.py b/backend/apps/notes/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/apps/notes/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/apps/notes/views.py b/backend/apps/notes/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/backend/apps/notes/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/backend/apps/shelf_items/__init__.py b/backend/apps/shelf_items/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/shelf_items/admin.py b/backend/apps/shelf_items/admin.py
new file mode 100644
index 0000000..8c38f3f
--- /dev/null
+++ b/backend/apps/shelf_items/admin.py
@@ -0,0 +1,3 @@
+from django.contrib import admin
+
+# Register your models here.
diff --git a/backend/apps/shelf_items/apps.py b/backend/apps/shelf_items/apps.py
new file mode 100644
index 0000000..95c030a
--- /dev/null
+++ b/backend/apps/shelf_items/apps.py
@@ -0,0 +1,5 @@
+from django.apps import AppConfig
+
+
+class ShelfItemsConfig(AppConfig):
+    name = 'shelf_items'
diff --git a/backend/apps/shelf_items/migrations/__init__.py b/backend/apps/shelf_items/migrations/__init__.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/apps/shelf_items/models.py b/backend/apps/shelf_items/models.py
new file mode 100644
index 0000000..71a8362
--- /dev/null
+++ b/backend/apps/shelf_items/models.py
@@ -0,0 +1,3 @@
+from django.db import models
+
+# Create your models here.
diff --git a/backend/apps/shelf_items/tests.py b/backend/apps/shelf_items/tests.py
new file mode 100644
index 0000000..7ce503c
--- /dev/null
+++ b/backend/apps/shelf_items/tests.py
@@ -0,0 +1,3 @@
+from django.test import TestCase
+
+# Create your tests here.
diff --git a/backend/apps/shelf_items/views.py b/backend/apps/shelf_items/views.py
new file mode 100644
index 0000000..91ea44a
--- /dev/null
+++ b/backend/apps/shelf_items/views.py
@@ -0,0 +1,3 @@
+from django.shortcuts import render
+
+# Create your views here.
diff --git a/backend/apps/shelves/views.py b/backend/apps/shelves/views.py
index 4efacc5..19f83e3 100644
--- a/backend/apps/shelves/views.py
+++ b/backend/apps/shelves/views.py
@@ -14,6 +14,8 @@ class ShelvesViewSet(viewsets.ModelViewSet):
     permission_classes = [IsAuthenticated]
 
     def get_queryset(self):
-        return Shelf.objects.filter(user_id=self.request.user.pk)
-    
+        return self.queryset.filter(
+            user_id=self.request.user.pk
+        )    
+
 
diff --git a/backend/apps/urls.py b/backend/apps/urls.py
index 90cce89..b8ab880 100644
--- a/backend/apps/urls.py
+++ b/backend/apps/urls.py
@@ -2,8 +2,10 @@ from drf_spectacular.views import SpectacularAPIView, SpectacularSwaggerView
 from django.urls import include, path
 
 urlpatterns = [
-    path("auth", include("apps.authentication.urls")),
-    path("shelves", include("apps.shelves.urls")),
+    path("auth/", include("apps.authentication.urls")),
+    path("shelves/", include("apps.shelves.urls")),
+    path("books/", include("apps.books.urls")),
+    path("authors/", include("apps.authors.urls")),
 
     path('schema/', SpectacularAPIView.as_view(), name='schema'),
     path('swagger/', SpectacularSwaggerView.as_view(url_name='schema'), name='swagger-ui'),
diff --git a/backend/apps/user/apps.py b/backend/apps/user/apps.py
index 850997f..9b6adc4 100644
--- a/backend/apps/user/apps.py
+++ b/backend/apps/user/apps.py
@@ -3,3 +3,9 @@ from django.apps import AppConfig
 
 class UserConfig(AppConfig):
     name = 'apps.user'
+
+    
+    def ready(self):
+        
+
+        return super().ready()
\ No newline at end of file
diff --git a/backend/apps/user/signals.py b/backend/apps/user/signals.py
new file mode 100644
index 0000000..e69de29
diff --git a/backend/config/django/base.py b/backend/config/django/base.py
index 557d2a9..8267c17 100644
--- a/backend/config/django/base.py
+++ b/backend/config/django/base.py
@@ -19,6 +19,8 @@ INSTALLED_APPS = [
     "apps.authentication.apps.AuthenticationConfig",
     "apps.user.apps.UserConfig",
     "apps.shelves.apps.ShelvesConfig",
+    "apps.books.apps.BooksConfig",
+    "apps.authors.apps.AuthorsConfig",
     "django.contrib.admin",
     "django.contrib.auth",
     "django.contrib.contenttypes",
diff --git a/backend/requirements.txt b/backend/requirements.txt
index 0a70b1f..0f80f4b 100644
--- a/backend/requirements.txt
+++ b/backend/requirements.txt
@@ -4,4 +4,5 @@ djangorestframework==3.16.1
 django-filter==25.2
 djangorestframework-simplejwt==5.5.1
 drf-spectacular==0.29.0
-pillow==12.1.1
\ No newline at end of file
+pillow==12.1.1
+celery==5.6.2
\ No newline at end of file