feat: add favorites feature for users

- Implemented `Favorite` model with unique user-item constraint and timestamped records
- Added `favorites:index` and `favorites:toggle` views with AJAX support for toggling favorites
- Built templates and front-end assets for the favorites page and integration with item grids
- Extended header with favorites link and dynamic counter
- Added tests covering models, views, and templates for the favorites functionality
- Updated admin to enable management of favorites via Django admin interface

favorites/__init__.py

@@ -0,0 +1 @@
+

favorites/admin.py

@@ -0,0 +1,11 @@
+from django.contrib import admin
+
+from .models import Favorite
+
+
+@admin.register(Favorite)
+class FavoriteAdmin(admin.ModelAdmin):
+    list_display = ("user", "item", "created_at")
+    list_filter = ("created_at",)
+    search_fields = ("user__username", "user__email", "item__name", "item__slug")
+

favorites/apps.py

@@ -0,0 +1,7 @@
+from django.apps import AppConfig
+
+
+class FavoritesConfig(AppConfig):
+    default_auto_field = "django.db.models.BigAutoField"
+    name = "favorites"
+

favorites/migrations/0001_initial.py

@@ -0,0 +1,33 @@
+# Generated by Django 6.0.4 on 2026-05-10 17:49
+
+import django.db.models.deletion
+from django.conf import settings
+from django.db import migrations, models
+
+
+class Migration(migrations.Migration):
+
+    initial = True
+
+    dependencies = [
+        ('items', '0003_subcategory_item_subcategory_and_more'),
+        migrations.swappable_dependency(settings.AUTH_USER_MODEL),
+    ]
+
+    operations = [
+        migrations.CreateModel(
+            name='Favorite',
+            fields=[
+                ('id', models.BigAutoField(auto_created=True, primary_key=True, serialize=False, verbose_name='ID')),
+                ('created_at', models.DateTimeField(auto_now_add=True, verbose_name='Дата добавления')),
+                ('item', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='favorite_entries', to='items.item', verbose_name='Товар')),
+                ('user', models.ForeignKey(on_delete=django.db.models.deletion.CASCADE, related_name='favorite_entries', to=settings.AUTH_USER_MODEL, verbose_name='Пользователь')),
+            ],
+            options={
+                'verbose_name': 'Избранный товар',
+                'verbose_name_plural': 'Избранные товары',
+                'ordering': ('-created_at', '-id'),
+                'constraints': [models.UniqueConstraint(fields=('user', 'item'), name='unique_favorite_user_item')],
+            },
+        ),
+    ]

favorites/migrations/__init__.py

@@ -0,0 +1 @@
+

favorites/models.py

@@ -0,0 +1,32 @@
+from django.conf import settings
+from django.db import models
+
+from items.models import Item
+
+
+class Favorite(models.Model):
+    user = models.ForeignKey(
+        settings.AUTH_USER_MODEL,
+        on_delete=models.CASCADE,
+        related_name="favorite_entries",
+        verbose_name="Пользователь",
+    )
+    item = models.ForeignKey(
+        Item,
+        on_delete=models.CASCADE,
+        related_name="favorite_entries",
+        verbose_name="Товар",
+    )
+    created_at = models.DateTimeField(auto_now_add=True, verbose_name="Дата добавления")
+
+    class Meta:
+        ordering = ("-created_at", "-id")
+        constraints = [
+            models.UniqueConstraint(fields=("user", "item"), name="unique_favorite_user_item"),
+        ]
+        verbose_name = "Избранный товар"
+        verbose_name_plural = "Избранные товары"
+
+    def __str__(self):
+        return f"{self.user} -> {self.item}"
+

favorites/services.py

@@ -0,0 +1,12 @@
+from typing import Any
+
+from favorites.models import Favorite
+
+
+def get_user_favorite_item_ids(user: Any) -> set[int]:
+    if not user.is_authenticated:
+        return set()
+
+    return set(
+        Favorite.objects.filter(user=user).values_list("item_id", flat=True)
+    )

favorites/tests.py

@@ -0,0 +1,120 @@
+from django.contrib.auth import get_user_model
+from django.db import IntegrityError
+from django.test import TestCase
+from django.urls import reverse
+
+from favorites.models import Favorite
+from items.models import Category, Item, ItemImage, Subcategory
+
+
+User = get_user_model()
+
+
+class FavoritePageTests(TestCase):
+    def setUp(self):
+        self.user = User.objects.create_user(
+            username="marina",
+            email="marina@example.com",
+            password="StrongPassword123",
+            is_active=True,
+        )
+        self.plumbing = Category.objects.create(name="Сантехника", slug="plumbing")
+        self.sinks = Subcategory.objects.create(name="Мойки", slug="sinks", category=self.plumbing)
+        self.taps = Subcategory.objects.create(name="Смесители", slug="taps", category=self.plumbing)
+        self.sink = Item.objects.create(
+            name="Кухонная мойка",
+            slug="kitchen-sink",
+            category=self.plumbing,
+            subcategory=self.sinks,
+            description="Искусственный камень",
+            price="1600.00",
+            is_available=True,
+        )
+        self.tap = Item.objects.create(
+            name="Смеситель Mono",
+            slug="mono-tap",
+            category=self.plumbing,
+            subcategory=self.taps,
+            description="Однорычажный смеситель",
+            price="320.00",
+            is_available=False,
+        )
+
+    def test_favorites_page_redirects_unauthenticated_users(self):
+        response = self.client.get(reverse("favorites:index"))
+
+        self.assertEqual(response.status_code, 302)
+        self.assertIn(reverse("users:login"), response["Location"])
+
+    def test_favorites_page_shows_empty_state(self):
+        self.client.force_login(self.user)
+
+        response = self.client.get(reverse("favorites:index"))
+
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "В избранном пока нет товаров.")
+
+    def test_favorites_page_shows_items_in_tile_grid(self):
+        self.client.force_login(self.user)
+        ItemImage.objects.create(
+            item=self.sink,
+            image="items/sink-primary.jpg",
+            alt="Главное фото мойки",
+            sort_order=0,
+            is_primary=True,
+        )
+        Favorite.objects.create(user=self.user, item=self.tap)
+        Favorite.objects.create(user=self.user, item=self.sink)
+
+        response = self.client.get(reverse("favorites:index"))
+
+        self.assertEqual(response.status_code, 200)
+        self.assertContains(response, "Избранное")
+        self.assertContains(response, "Кухонная мойка")
+        self.assertContains(response, "Смеситель Mono")
+        self.assertContains(response, "/media/items/sink-primary.jpg")
+        self.assertContains(response, 'href="/catalog/plumbing/kitchen-sink/"', html=False)
+        self.assertContains(response, 'href="/catalog/plumbing/mono-tap/"', html=False)
+        self.assertContains(response, "Удалить из избранного")
+
+    def test_toggle_endpoint_adds_and_removes_favorite(self):
+        self.client.force_login(self.user)
+
+        add_response = self.client.post(
+            reverse("favorites:toggle"),
+            data={"item_id": self.sink.pk, "next": reverse("favorites:index")},
+        )
+
+        self.assertRedirects(add_response, reverse("favorites:index"))
+        self.assertTrue(Favorite.objects.filter(user=self.user, item=self.sink).exists())
+
+        remove_response = self.client.post(
+            reverse("favorites:toggle"),
+            data={"item_id": self.sink.pk, "next": reverse("favorites:index")},
+        )
+
+        self.assertRedirects(remove_response, reverse("favorites:index"))
+        self.assertFalse(Favorite.objects.filter(user=self.user, item=self.sink).exists())
+
+    def test_toggle_endpoint_returns_json_for_ajax_requests(self):
+        self.client.force_login(self.user)
+
+        response = self.client.post(
+            reverse("favorites:toggle"),
+            data={"item_id": self.sink.pk, "next": reverse("favorites:index")},
+            HTTP_X_REQUESTED_WITH="XMLHttpRequest",
+            HTTP_ACCEPT="application/json",
+        )
+
+        self.assertEqual(response.status_code, 200)
+        self.assertEqual(response["Content-Type"], "application/json")
+        self.assertEqual(response.json()["item_id"], self.sink.pk)
+        self.assertTrue(response.json()["is_favorite"])
+        self.assertEqual(response.json()["favorite_count"], 1)
+        self.assertTrue(Favorite.objects.filter(user=self.user, item=self.sink).exists())
+
+    def test_favorite_pair_is_unique_per_user_and_item(self):
+        Favorite.objects.create(user=self.user, item=self.sink)
+
+        with self.assertRaises(IntegrityError):
+            Favorite.objects.create(user=self.user, item=self.sink)

favorites/urls.py

@@ -0,0 +1,10 @@
+from django.urls import path
+
+from favorites import views
+
+app_name = "favorites"
+
+urlpatterns = [
+    path("", views.index, name="index"),
+    path("toggle/", views.toggle, name="toggle"),
+]

favorites/views.py

@@ -0,0 +1,73 @@
+from django.contrib import messages
+from django.contrib.auth.decorators import login_required
+from django.http import HttpRequest, HttpResponse, JsonResponse
+from django.shortcuts import get_object_or_404, redirect, render
+from django.urls import reverse
+from django.utils.http import url_has_allowed_host_and_scheme
+from django.views.decorators.http import require_POST
+
+from favorites.models import Favorite
+from items.models import Item
+
+
+def wants_json_response(request: HttpRequest) -> bool:
+    return (
+        request.headers.get("x-requested-with") == "XMLHttpRequest"
+        or "application/json" in request.headers.get("accept", "")
+    )
+
+
+@login_required
+def index(request: HttpRequest) -> HttpResponse:
+    favorite_records = (
+        Favorite.objects.filter(user=request.user)
+        .select_related("item__category", "item__subcategory")
+        .prefetch_related("item__images")
+        .order_by("-created_at", "-id")
+    )
+    items = [favorite.item for favorite in favorite_records]
+
+    return render(request, "favorites/index.html", {
+        "items": items,
+        "favorite_count": len(items),
+        "favorite_item_ids": {item.id for item in items},
+    })
+
+
+@login_required
+@require_POST
+def toggle(request: HttpRequest) -> HttpResponse:
+    item_id = request.POST.get("item_id")
+    item = get_object_or_404(Item, pk=item_id)
+
+    favorite = Favorite.objects.filter(user=request.user, item=item).first()
+    if favorite:
+        favorite.delete()
+        is_favorite = False
+        message = f"Товар «{item.name}» удалён из избранного."
+    else:
+        Favorite.objects.create(user=request.user, item=item)
+        is_favorite = True
+        message = f"Товар «{item.name}» добавлен в избранное."
+
+    favorite_count = Favorite.objects.filter(user=request.user).count()
+    next_url = request.POST.get("next") or reverse("favorites:index")
+
+    if wants_json_response(request):
+        return JsonResponse({
+            "item_id": item.pk,
+            "is_favorite": is_favorite,
+            "favorite_count": favorite_count,
+            "message": message,
+        })
+
+    messages.success(request, message)
+
+    if not url_has_allowed_host_and_scheme(
+        next_url,
+        allowed_hosts={request.get_host()},
+        require_https=request.is_secure(),
+    ):
+        next_url = reverse("favorites:index")
+
+    return redirect(next_url)

items/tests.py

@@ -2,6 +2,7 @@ from django.test import TestCase, override_settings
 from django.contrib.auth import get_user_model
 from django.core.exceptions import ValidationError
 
+from favorites.models import Favorite
 from items.models import Category, Item, ItemImage, Subcategory
 
 
@@ -52,7 +53,7 @@ class CatalogViewTests(TestCase):
         self.assertEqual(response.status_code, 200)
         self.assertContains(response, "Мойки")
         self.assertContains(response, "Смесители")
-        self.assertNotContains(response, "Подсветка")
+        self.assertNotContains(response, 'href="/catalog/decor/?subcategory=lights"')
 
     def test_subcategory_page_shows_only_selected_subcategory_items(self):
         Item.objects.create(
@@ -141,6 +142,36 @@ class CatalogViewTests(TestCase):
 
         self.assertContains(response, 'href="/catalog/plumbing/kitchen-sink/"')
 
+    def test_catalog_item_card_shows_favorite_button_for_authenticated_user(self):
+        user = get_user_model().objects.create_user(
+            username="ann",
+            email="ann@example.com",
+            password="StrongPassword123",
+            is_active=True,
+        )
+        self.client.force_login(user)
+
+        response = self.client.get("/catalog/")
+
+        self.assertContains(response, 'action="/favorites/toggle/"', html=False)
+        self.assertContains(response, "Добавить в избранное")
+        self.assertContains(response, 'name="item_id" value="', html=False)
+
+    def test_catalog_item_card_marks_favorited_item(self):
+        user = get_user_model().objects.create_user(
+            username="ann2",
+            email="ann2@example.com",
+            password="StrongPassword123",
+            is_active=True,
+        )
+        self.client.force_login(user)
+        Favorite.objects.create(user=user, item=self.sink)
+
+        response = self.client.get("/catalog/")
+
+        self.assertContains(response, "Удалить из избранного")
+        self.assertContains(response, "is-active")
+
     def test_detail_page_shows_item_data(self):
         ItemImage.objects.create(
             item=self.sink,

items/views.py

@@ -3,6 +3,7 @@ from dataclasses import dataclass
 from django.http import HttpRequest, HttpResponse, Http404
 from django.shortcuts import render
 
+from favorites.services import get_user_favorite_item_ids
 from items.models import Category, Item, Subcategory
 
 
@@ -56,6 +57,7 @@ def index(request: HttpRequest, category: str | None = None) -> HttpResponse:
         'items': items,
         'selected_category': selected_category,
         'selected_subcategory': selected_subcategory,
+        'favorite_item_ids': get_user_favorite_item_ids(request.user),
     })
 
 
@@ -76,4 +78,5 @@ def detail(request: HttpRequest, category: str, slug: str) -> HttpResponse:
         'item': item,
         'images': images,
         'primary_image': images[0] if images else None,
+        'favorite_item_ids': get_user_favorite_item_ids(request.user),
     })

santehray/context_processors.py

@@ -1,2 +1,46 @@
+from django.db.models import Prefetch
+
+from items.models import Category, Subcategory
+
+
 def navigation(request):
-    return {"active": ""}
+    categories = (
+        Category.objects
+        .prefetch_related(Prefetch("subcategories", queryset=Subcategory.objects.order_by("name")))
+        .order_by("name")
+    )
+
+    current_category = None
+    current_subcategory = None
+    selected_label = "Все категории"
+    selected_value = ""
+    resolver_match = getattr(request, "resolver_match", None)
+    category_slug = None
+    if resolver_match is not None:
+        category_slug = resolver_match.kwargs.get("category")
+
+    if category_slug:
+        current_category = Category.objects.filter(slug=category_slug.lower()).first()
+
+    subcategory_slug = request.GET.get("subcategory")
+    if current_category and subcategory_slug:
+        current_subcategory = Subcategory.objects.filter(
+            category=current_category,
+            slug=subcategory_slug.lower(),
+        ).first()
+
+    if current_category and current_subcategory:
+        selected_label = f"{current_category.name} / {current_subcategory.name}"
+        selected_value = f"subcategory:{current_category.slug}:{current_subcategory.slug}"
+    elif current_category:
+        selected_label = current_category.name
+        selected_value = f"category:{current_category.slug}"
+
+    return {
+        "active": "",
+        "navigation_categories": categories,
+        "navigation_selected_label": selected_label,
+        "navigation_selected_value": selected_value,
+        "navigation_selected_category_slug": current_category.slug if current_category else None,
+        "navigation_selected_subcategory_slug": current_subcategory.slug if current_subcategory else None,
+    }

santehray/settings.py

@@ -188,6 +188,7 @@ INSTALLED_APPS = [
     'django.contrib.staticfiles',
     'home',
     'items',
+    'favorites',
     'orders',
     'users',
 ]
@@ -368,6 +369,11 @@ LOGGING = {
             "level": LOG_LEVEL,
             "propagate": False,
         },
+        "favorites": {
+            "handlers": ["console"],
+            "level": LOG_LEVEL,
+            "propagate": False,
+        },
         "orders": {
             "handlers": ["console"],
             "level": LOG_LEVEL,

santehray/urls.py

@@ -28,6 +28,7 @@ urlpatterns = [
     path("favicon.ico", views.favicon, name="favicon"),
     path('', include('home.urls')),
     path('catalog/', include('items.urls')),
+    path('favorites/', include('favorites.urls')),
     path('orders/', include('orders.urls')),
     path('users/', include('users.urls')),
     path('admin/', admin.site.urls),

static/css/catalog.css

@@ -74,9 +74,8 @@ aside {
     transform: translateY(-2px);
 }
 
-.item-card-link {
+.item-card-media-link {
     display: block;
-    height: 100%;
 }
 
 .item-card-image {
@@ -106,11 +105,60 @@ aside {
     padding: 18px;
 }
 
+.item-card-header {
+    display: flex;
+    align-items: flex-start;
+    justify-content: space-between;
+    gap: 14px;
+}
+
 .item-card-category {
     color: #63768d;
     font-size: 15px;
     line-height: 1.2;
     margin-bottom: 8px;
+    min-width: 0;
+}
+
+.item-card-favorite-form {
+    flex: 0 0 auto;
+}
+
+.item-card-favorite-button {
+    width: 42px;
+    height: 42px;
+    border: 0;
+    background: transparent;
+    padding: 0;
+    color: #63768d;
+    display: inline-flex;
+    align-items: center;
+    justify-content: center;
+    cursor: pointer;
+    transition: color 0.2s, opacity 0.2s, transform 0.2s;
+}
+
+.item-card-favorite-button:hover {
+    color: #36213e;
+    opacity: 0.82;
+    transform: translateY(-1px);
+}
+
+.item-card-favorite-button svg {
+    width: 18px;
+    height: 18px;
+}
+
+.item-card-favorite-button.is-active {
+    color: #c54c5d;
+}
+
+.item-card-favorite-button--login {
+    text-decoration: none;
+}
+
+.item-card-title-link {
+    display: block;
 }
 
 .item-card-title {
@@ -397,6 +445,15 @@ aside {
         flex-direction: column;
     }
 
+    .item-card-header {
+        gap: 10px;
+    }
+
+.item-card-favorite-button {
+        width: 38px;
+        height: 38px;
+    }
+
     .product-gallery__thumbs {
         gap: 12px;
     }

static/css/favorites.css

@@ -0,0 +1,115 @@
+.favorites-page {
+    margin-top: 18px;
+    margin-bottom: 80px;
+}
+
+.favorites-hero {
+    margin-bottom: 28px;
+    padding: 30px 32px;
+    border: 1px solid rgba(54, 33, 62, 0.12);
+    background:
+        /*radial-gradient(circle at top right, rgba(184, 243, 255, 0.55) 0, rgba(184, 243, 255, 0) 34%),*/
+        linear-gradient(180deg, rgba(99, 118, 141, 0.07) 0%, rgba(99, 118, 141, 0.12) 100%);
+}
+
+.favorites-kicker {
+    font-size: 16px;
+    line-height: 1.2;
+    color: #63768d;
+    text-transform: uppercase;
+    letter-spacing: 0.08em;
+    margin-bottom: 12px;
+}
+
+.favorites-hero__row {
+    display: flex;
+    align-items: flex-end;
+    justify-content: space-between;
+    gap: 24px;
+}
+
+.favorites-title {
+    font-size: 50px;
+    line-height: 1.05;
+    color: #36213e;
+    font-weight: 400;
+}
+
+.favorites-description {
+    max-width: 680px;
+    margin-top: 14px;
+    color: #554971;
+    font-size: 18px;
+    line-height: 1.45;
+}
+
+.favorites-counter {
+    flex: 0 0 auto;
+    min-width: 130px;
+    padding: 16px 20px;
+    border: 1px solid rgba(54, 33, 62, 0.12);
+    background: rgba(255, 255, 255, 0.72);
+    text-align: center;
+}
+
+.favorites-counter__value {
+    display: block;
+    color: #36213e;
+    font-family: "BerlinType", serif;
+    font-size: 44px;
+    line-height: 1;
+}
+
+.favorites-counter__label {
+    display: block;
+    margin-top: 6px;
+    color: #63768d;
+    font-size: 15px;
+    line-height: 1.2;
+    text-transform: uppercase;
+    letter-spacing: 0.06em;
+}
+
+.favorites-list .items-grid {
+    grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
+}
+
+@media (max-width: 900px) {
+    .favorites-page {
+        padding-left: 24px;
+        padding-right: 24px;
+        margin-bottom: 64px;
+    }
+
+    .favorites-hero {
+        padding: 24px 20px;
+    }
+
+    .favorites-title {
+        font-size: 38px;
+    }
+
+    .favorites-description {
+        font-size: 16px;
+    }
+
+    .favorites-hero__row {
+        align-items: flex-start;
+        flex-direction: column;
+    }
+}
+
+@media (max-width: 520px) {
+    .favorites-page {
+        margin-top: 12px;
+    }
+
+    .favorites-title {
+        font-size: 30px;
+    }
+
+    .favorites-counter {
+        width: 100%;
+    }
+}
+

static/css/index.css

@@ -627,7 +627,7 @@
     line-height: 24px;
     text-align: left;
 
-    color: #b8f3ff;
+    color: #ffffff;
 }
 
 .faq-body {

static/css/login.css

@@ -10,7 +10,6 @@
     padding-top: 60px;
     padding-bottom: 60px;
     background:
-        radial-gradient(circle at top right, rgba(184, 243, 255, 0.45) 0, rgba(184, 243, 255, 0) 26%),
         linear-gradient(180deg, rgba(99, 118, 141, 0.06) 0%, rgba(99, 118, 141, 0.12) 100%);
 }
 
@@ -59,7 +58,7 @@
     margin-bottom: 18px;
     font-size: 20px;
     line-height: 1.2;
-    color: #b8f3ff;
+    color: #ffffff;
 }
 
 .auth-title {

static/css/style.css

@@ -240,16 +240,134 @@ header {
     margin: 0 24px;
 }
 
-.search-wrap select {
+.search-select-wrap {
-    border: none;
+    position: relative;
+    flex: 0 0 154px;
+    width: 154px;
     border-right: 1px solid var(--dark);
-    padding: 10px 14px;
+    min-width: 0;
+    box-sizing: border-box;
+}
+
+.search-category-dropdown {
+    position: relative;
+    width: 100%;
+    min-width: 0;
+    box-sizing: border-box;
+}
+
+.search-category-trigger {
+    width: 100%;
+    min-width: 0;
+    display: flex;
+    align-items: center;
+    justify-content: flex-start;
+    gap: 8px;
+    padding: 10px 34px 10px 14px;
+    border: 0;
+    background: transparent;
+    color: var(--mid);
     font-family: 'Inter', sans-serif;
     font-size: 13px;
-    color: var(--mid);
+    line-height: 1.2;
-    background: transparent;
+    text-align: left;
-    outline: none;
     cursor: pointer;
+    box-sizing: border-box;
+}
+
+.search-category-trigger:focus-visible {
+    outline: none;
+}
+
+.search-category-label {
+    flex: 1 1 auto;
+    min-width: 0;
+    overflow: hidden;
+    white-space: nowrap;
+    text-overflow: ellipsis;
+}
+
+.search-select-arrow {
+    position: absolute;
+    top: 50%;
+    right: 12px;
+    transform: translateY(-50%);
+    color: var(--mid);
+    pointer-events: none;
+    transition: transform .2s ease;
+}
+
+.search-category-dropdown.is-open .search-select-arrow {
+    transform: translateY(-50%) rotate(180deg);
+}
+
+.search-category-menu {
+    display: none;
+    position: absolute;
+    top: calc(100% + 8px);
+    left: 0;
+    z-index: 30;
+    width: max(100%, 290px);
+    max-height: 340px;
+    overflow: auto;
+    padding: 8px 0 10px;
+    border: 1px solid rgba(54, 33, 62, .16);
+    background: #ffffff;
+    box-shadow: 0 16px 36px rgba(54, 33, 62, .14);
+}
+
+.search-category-dropdown.is-open .search-category-menu {
+    display: block;
+}
+
+.search-category-option {
+    display: block;
+    width: 100%;
+    border: 0;
+    background: transparent;
+    padding: 0;
+    cursor: pointer;
+    text-align: left;
+    font-family: 'Inter', sans-serif;
+    transition: background-color .15s ease, color .15s ease;
+}
+
+.search-category-option:hover,
+.search-category-option:focus-visible {
+    background: rgba(99, 118, 141, 0.08);
+    outline: none;
+}
+
+.search-category-option--all {
+    padding: 10px 14px 11px;
+    font-size: 13px;
+    line-height: 1.25;
+    font-weight: 600;
+    color: var(--mid);
+}
+
+.search-category-group {
+    padding-top: 6px;
+}
+
+.search-category-sublist {
+    display: flex;
+    flex-direction: column;
+}
+
+.search-category-option--category {
+    padding: 9px 14px 9px 22px;
+    font-size: 13px;
+    line-height: 1.25;
+    font-weight: 600;
+    color: var(--dark);
+}
+
+.search-category-option--subcategory {
+    padding: 7px 14px 7px 34px;
+    font-size: 12px;
+    line-height: 1.25;
+    color: var(--mid);
 }
 
 .search-wrap input {
@@ -393,7 +511,7 @@ footer {
 }
 
 .footer-logo {
-    font-family: 'Playfair Display', serif;
+    font-family: 'BerlinType', serif;
     font-size: 30px;
     color: rgba(184, 243, 255, .85);
     margin-bottom: 8px;
@@ -459,11 +577,15 @@ footer {
         margin: 0;
     }
 
-    .search-wrap select {
+    .search-select-wrap {
         flex: 0 0 132px;
         max-width: none;
+        width: 132px;
+    }
+
+    .search-category-trigger {
         padding-left: 8px;
-        padding-right: 8px;
+        padding-right: 28px;
     }
 
     .header-icons {

static/js/favorites.js

@@ -0,0 +1,114 @@
+document.addEventListener('DOMContentLoaded', function () {
+    const favoriteForms = document.querySelectorAll('[data-favorite-form]');
+
+    const pluralizeFavorites = function (count) {
+        const value = Math.abs(Number(count) || 0);
+        const lastTwo = value % 100;
+        if (lastTwo >= 11 && lastTwo <= 14) {
+            return 'товаров';
+        }
+
+        switch (value % 10) {
+            case 1:
+                return 'товар';
+            case 2:
+            case 3:
+            case 4:
+                return 'товара';
+            default:
+                return 'товаров';
+        }
+    };
+
+    const updateFavoritesCounter = function (favoriteCount) {
+        const valueNode = document.querySelector('[data-favorites-count-value]');
+        const labelNode = document.querySelector('[data-favorites-count-label]');
+
+        if (valueNode) {
+            valueNode.textContent = String(favoriteCount);
+        }
+
+        if (labelNode) {
+            labelNode.textContent = pluralizeFavorites(favoriteCount);
+        }
+    };
+
+    const ensureEmptyFavoritesState = function () {
+        const grid = document.querySelector('[data-favorites-grid]');
+        if (!grid) {
+            return;
+        }
+
+        const cards = grid.querySelectorAll('[data-item-card]');
+        if (cards.length > 0) {
+            return;
+        }
+
+        const emptyMessage = grid.dataset.emptyMessage || 'В избранном пока нет товаров.';
+        grid.innerHTML = '<p class="item-list-empty">' + emptyMessage + '</p>';
+    };
+
+    const syncButtonState = function (button, payload) {
+        const isFavorite = Boolean(payload.is_favorite);
+        const addLabel = button.dataset.labelAdd || 'Добавить в избранное';
+        const removeLabel = button.dataset.labelRemove || 'Удалить из избранного';
+        const label = isFavorite ? removeLabel : addLabel;
+
+        button.classList.toggle('is-active', isFavorite);
+        button.setAttribute('title', label);
+        button.setAttribute('aria-label', label);
+    };
+
+    favoriteForms.forEach(function (form) {
+        form.addEventListener('submit', async function (event) {
+            event.preventDefault();
+
+            const button = form.querySelector('[data-favorite-button]');
+            if (!button || form.dataset.loading === '1') {
+                return;
+            }
+
+            form.dataset.loading = '1';
+            button.disabled = true;
+
+            try {
+                const response = await fetch(form.action, {
+                    method: 'POST',
+                    body: new FormData(form),
+                    headers: {
+                        'X-Requested-With': 'XMLHttpRequest',
+                        'Accept': 'application/json',
+                    },
+                    credentials: 'same-origin',
+                });
+
+                if (!response.ok) {
+                    throw new Error('Failed to update favorites');
+                }
+
+                const payload = await response.json();
+                const card = form.closest('[data-item-card]');
+                const favoritesPage = Boolean(document.querySelector('[data-favorites-page]'));
+
+                syncButtonState(button, payload);
+                updateFavoritesCounter(payload.favorite_count);
+
+                if (card) {
+                    card.classList.toggle('is-favorite', Boolean(payload.is_favorite));
+                }
+
+                if (favoritesPage && !payload.is_favorite && card) {
+                    card.remove();
+                    ensureEmptyFavoritesState();
+                }
+            } catch (error) {
+                console.error(error);
+                HTMLFormElement.prototype.submit.call(form);
+                return;
+            } finally {
+                form.dataset.loading = '0';
+                button.disabled = false;
+            }
+        });
+    });
+});

static/js/header-category-dropdown.js

@@ -0,0 +1,56 @@
+document.addEventListener('DOMContentLoaded', function () {
+    document.querySelectorAll('[data-category-dropdown]').forEach(function (dropdown) {
+        const trigger = dropdown.querySelector('[data-category-trigger]');
+        const label = dropdown.querySelector('[data-selected-label]');
+        const valueInput = dropdown.querySelector('[data-category-value]');
+        const menu = dropdown.querySelector('[data-category-menu]');
+        const options = dropdown.querySelectorAll('[data-category-option]');
+
+        if (!trigger || !label || !valueInput || !menu) {
+            return;
+        }
+
+        const setExpanded = function (expanded) {
+            trigger.setAttribute('aria-expanded', expanded ? 'true' : 'false');
+            dropdown.classList.toggle('is-open', expanded);
+        };
+
+        const closeDropdown = function () {
+            setExpanded(false);
+        };
+
+        const openDropdown = function () {
+            setExpanded(true);
+        };
+
+        trigger.addEventListener('click', function (event) {
+            event.preventDefault();
+            if (dropdown.classList.contains('is-open')) {
+                closeDropdown();
+                return;
+            }
+
+            openDropdown();
+        });
+
+        options.forEach(function (option) {
+            option.addEventListener('click', function () {
+                label.textContent = option.dataset.label || option.textContent.trim();
+                valueInput.value = option.dataset.value || '';
+                closeDropdown();
+            });
+        });
+
+        document.addEventListener('click', function (event) {
+            if (!dropdown.contains(event.target)) {
+                closeDropdown();
+            }
+        });
+
+        document.addEventListener('keydown', function (event) {
+            if (event.key === 'Escape') {
+                closeDropdown();
+            }
+        });
+    });
+});

templates/_fragments/footer.html

@@ -7,19 +7,19 @@
         <div class="footer-col">
             <h4>ПОКУПАТЕЛЮ</h4>
             <ul>
-                <li><a href="#">Каталог</a></li>
+                <li><a href="/catalog/">Каталог</a></li>
-                <li><a href="#">Услуги</a></li>
+                <li><a href="{% url 'services' %}">Услуги</a></li>
-                <li><a href="#">Акции</a></li>
+                <li><a href="/catalog/">Акции</a></li>
-                <li><a href="#">Новинки</a></li>
+                <li><a href="/catalog/">Новинки</a></li>
             </ul>
         </div>
         <div class="footer-col">
             <h4>ПОМОЩЬ</h4>
             <ul>
-                <li><a href="#">Доставка и оплата</a></li>
+                <li><a href="{% url 'shipping' %}">Доставка и оплата</a></li>
-                <li><a href="#">Гарантия и возврат</a></li>
+                <li><a href="{% url 'warranty' %}">Гарантия и возврат</a></li>
-                <li>Ответы на вопросы</li>
+                <li><a href="{% url 'home' %}#faq-section">Ответы на вопросы</a></li>
-                <li><a href="#">Контакты</a></li>
+                <li><a href="{% url 'contacts' %}">Контакты</a></li>
             </ul>
         </div>
         <div class="footer-col">

templates/_fragments/header.html

@@ -5,13 +5,67 @@
             <div class="logo"><a href="/">SantehRay</a></div>
             <form action="">
                 <div class="search-wrap">
-                    <label>
+                    <div class="search-select-wrap">
-                        <select>
+                        <div class="search-category-dropdown" data-category-dropdown>
-                            <option>Все категории</option>
+                            <button
-                            <option>Сантехника</option>
+                                    type="button"
-                            <option>Декор</option>
+                                    class="search-category-trigger"
-                        </select>
+                                    aria-label="Выбор категории"
-                    </label>
+                                    aria-expanded="false"
+                                    aria-haspopup="listbox"
+                                    data-category-trigger
+                            >
+                                <span class="search-category-label"
+                                      data-selected-label>{{ navigation_selected_label }}</span>
+                                <svg class="search-select-arrow" xmlns="http://www.w3.org/2000/svg" width="14"
+                                     height="14"
+                                     viewBox="0 0 16 16" fill="none" aria-hidden="true" focusable="false">
+                                    <path d="M3.2 6.2 8 11l4.8-4.8" stroke="currentColor" stroke-width="1.8"
+                                          stroke-linecap="round" stroke-linejoin="round"></path>
+                                </svg>
+                            </button>
+                            <input type="hidden" name="category" value="{{ navigation_selected_value }}"
+                                   data-category-value>
+                            <div class="search-category-menu" role="listbox" aria-label="Категории и подкатегории"
+                                 data-category-menu>
+                                <button
+                                        type="button"
+                                        class="search-category-option search-category-option--all"
+                                        data-category-option
+                                        data-label="Все категории"
+                                        data-value=""
+                                >
+                                    Все категории
+                                </button>
+                                {% for category in navigation_categories %}
+                                    <div class="search-category-group">
+                                        <div class="search-category-sublist">
+                                            <button
+                                                    type="button"
+                                                    class="search-category-option search-category-option--category"
+                                                    data-category-option
+                                                    data-label="{{ category.name }}"
+                                                    data-value="category:{{ category.slug }}"
+                                            >
+                                                {{ category.name }}
+                                            </button>
+                                            {% for subcategory in category.subcategories.all %}
+                                                <button
+                                                        type="button"
+                                                        class="search-category-option search-category-option--subcategory"
+                                                        data-category-option
+                                                        data-label="{{ category.name }} / {{ subcategory.name }}"
+                                                        data-value="subcategory:{{ category.slug }}:{{ subcategory.slug }}"
+                                                >
+                                                    {{ subcategory.name }}
+                                                </button>
+                                            {% endfor %}
+                                        </div>
+                                    </div>
+                                {% endfor %}
+                            </div>
+                        </div>
+                    </div>
                     <label>
                         <input class="search-input" type="text" placeholder="Кто ищет, тот найдет...">
                     </label>
@@ -24,7 +78,8 @@
                 </div>
             </form>
             <div class="header-icons">
-                <a href="">
+                <a href="{% if request.user.is_authenticated %}{% url 'favorites:index' %}{% else %}{% url 'users:login' %}{% endif %}"
+                   aria-label="Избранное">
                     <svg xmlns="http://www.w3.org/2000/svg" width="16" height="16" fill="currentColor"
                          class="bi bi-heart" viewBox="0 0 16 16">
                         <path d="m8 2.748-.717-.737C5.6.281 2.514.878 1.4 3.053c-.523 1.023-.641 2.5.314 4.385.92 1.815 2.834 3.989 6.286 6.357 3.452-2.368 5.365-4.542 6.286-6.357.955-1.886.838-3.362.314-4.385C13.486.878 10.4.28 8.717 2.01zM8 15C-7.333 4.868 3.279-3.04 7.824 1.143q.09.083.176.171a3 3 0 0 1 .176-.17C12.72-3.042 23.333 4.867 8 15"></path>

templates/_fragments/item-grid.html

@@ -0,0 +1,7 @@
+<div class="items-grid"{% if favorites_grid %} data-favorites-grid data-empty-message="{{ empty_message|escape }}"{% endif %}>
+    {% for item in items %}
+        {% include "catalog/_fragments/item-card.html" with item=item %}
+    {% empty %}
+        <p class="item-list-empty">{{ empty_message }}</p>
+    {% endfor %}
+</div>

templates/_layouts/base.html

@@ -16,6 +16,7 @@
     <link rel="stylesheet" href="https://cdn.jsdelivr.net/npm/@fancyapps/ui@6.1/dist/fancybox/fancybox.css"/>
     <script src="https://cdn.jsdelivr.net/npm/swiper@12/swiper-bundle.min.js"></script>
     <script src="https://cdn.jsdelivr.net/npm/@fancyapps/ui@6.1/dist/fancybox/fancybox.umd.js"></script>
+    <script src="{% static 'js/header-category-dropdown.js' %}"></script>
     {% block add_css %}
         <!-- Additional CSS -->
     {% endblock %}
@@ -52,5 +53,6 @@
         })
     })
 </script>
+<script src="{% static 'js/favorites.js' %}"></script>
 </body>
 </html>

templates/catalog/_fragments/item-card.html

@@ -0,0 +1,57 @@
+<article class="item-card{% if item.id in favorite_item_ids %} is-favorite{% endif %}" data-item-card="{{ item.id }}">
+    <a class="item-card-media-link" href="{% url 'detail' item.category.slug item.slug %}" aria-label="Открыть товар {{ item.name }}">
+        {% with primary_image=item.primary_image %}
+            <div class="item-card-image">
+                {% if primary_image %}
+                    <img src="{{ primary_image.image.url }}" alt="{{ primary_image.alt|default:item.name }}">
+                {% else %}
+                    <div class="item-card-placeholder">Нет фото</div>
+                {% endif %}
+            </div>
+        {% endwith %}
+    </a>
+
+    <div class="item-card-body">
+        <div class="item-card-header">
+            <div class="item-card-category">
+                {{ item.category.name }}{% if item.subcategory %} / {{ item.subcategory.name }}{% endif %}
+            </div>
+            {% if request.user.is_authenticated %}
+                <form class="item-card-favorite-form" method="post" action="{% url 'favorites:toggle' %}" data-favorite-form>
+                    {% csrf_token %}
+                    <input type="hidden" name="item_id" value="{{ item.id }}">
+                    <input type="hidden" name="next" value="{{ request.get_full_path }}">
+                    <button
+                        class="item-card-favorite-button{% if item.id in favorite_item_ids %} is-active{% endif %}"
+                        type="submit"
+                        title="{% if item.id in favorite_item_ids %}Удалить из избранного{% else %}Добавить в избранное{% endif %}"
+                        aria-label="{% if item.id in favorite_item_ids %}Удалить из избранного{% else %}Добавить в избранное{% endif %}"
+                        data-favorite-button
+                        data-label-add="Добавить в избранное"
+                        data-label-remove="Удалить из избранного"
+                    >
+                        <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false">
+                            <path d="m8 2.748-.717-.737C5.6.281 2.514.878 1.4 3.053c-.523 1.023-.641 2.5.314 4.385.92 1.815 2.834 3.989 6.286 6.357 3.452-2.368 5.365-4.542 6.286-6.357.955-1.886.838-3.362.314-4.385C13.486.878 10.4.28 8.717 2.01z"></path>
+                        </svg>
+                    </button>
+                </form>
+            {% else %}
+                <a class="item-card-favorite-button item-card-favorite-button--login" href="{% url 'users:login' %}?next={{ request.get_full_path|urlencode }}" title="Войдите, чтобы добавить в избранное" aria-label="Войдите, чтобы добавить в избранное" data-favorite-button data-label-add="Добавить в избранное" data-label-remove="Удалить из избранного">
+                    <svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 16 16" fill="currentColor" aria-hidden="true" focusable="false">
+                        <path d="m8 2.748-.717-.737C5.6.281 2.514.878 1.4 3.053c-.523 1.023-.641 2.5.314 4.385.92 1.815 2.834 3.989 6.286 6.357 3.452-2.368 5.365-4.542 6.286-6.357.955-1.886.838-3.362.314-4.385C13.486.878 10.4.28 8.717 2.01z"></path>
+                    </svg>
+                </a>
+            {% endif %}
+        </div>
+
+        <a class="item-card-title-link" href="{% url 'detail' item.category.slug item.slug %}" aria-label="Открыть товар {{ item.name }}">
+            <h2 class="item-card-title">{{ item.name }}</h2>
+        </a>
+        <div class="item-card-footer">
+            <span class="item-card-price">{{ item.price }} руб.</span>
+            <span class="item-card-availability {% if item.is_available %}available{% else %}unavailable{% endif %}">
+                {% if item.is_available %}В наличии{% else %}Нет в наличии{% endif %}
+            </span>
+        </div>
+    </div>
+</article>

templates/catalog/_fragments/item-list.html

@@ -1,34 +1,3 @@
 <main class="item-list">
-    <div class="items-grid">
+    {% include "_fragments/item-grid.html" with items=items empty_message="В этой категории пока нет товаров." %}
-    {% for item in items %}
-        <article class="item-card">
-            <a class="item-card-link" href="{% url 'detail' item.category.slug item.slug %}" aria-label="Открыть товар {{ item.name }}">
-                {% with primary_image=item.primary_image %}
-                    <div class="item-card-image">
-                        {% if primary_image %}
-                            <img src="{{ primary_image.image.url }}" alt="{{ primary_image.alt|default:item.name }}">
-                        {% else %}
-                            <div class="item-card-placeholder">Нет фото</div>
-                        {% endif %}
-                    </div>
-                {% endwith %}
-
-                <div class="item-card-body">
-                    <div class="item-card-category">
-                        {{ item.category.name }}{% if item.subcategory %} / {{ item.subcategory.name }}{% endif %}
-                    </div>
-                    <h2 class="item-card-title">{{ item.name }}</h2>
-                    <div class="item-card-footer">
-                        <span class="item-card-price">{{ item.price }} руб.</span>
-                        <span class="item-card-availability {% if item.is_available %}available{% else %}unavailable{% endif %}">
-                            {% if item.is_available %}В наличии{% else %}Нет в наличии{% endif %}
-                        </span>
-                    </div>
-                </div>
-            </a>
-        </article>
-    {% empty %}
-        <p class="item-list-empty">В этой категории пока нет товаров.</p>
-    {% endfor %}
-    </div>
 </main>

templates/favorites/index.html

@@ -0,0 +1,39 @@
+{% extends "_layouts/base.html" %}
+{% load static %}
+
+{% block title %}Избранное{% endblock %}
+
+{% block add_css %}
+    <link rel="stylesheet" href="{% static "css/catalog.css" %}">
+    <link rel="stylesheet" href="{% static "css/favorites.css" %}">
+{% endblock %}
+
+{% block content %}
+    {% include "_fragments/header.html" with active="favorites" %}
+
+    {% include '_fragments/breadcrumbs.html' with url_1='/' text_1='Главная' url_2='/favorites/' text_2='Избранное' %}
+
+    <main class="container favorites-page" data-favorites-page>
+        <section class="favorites-hero">
+            <p class="favorites-kicker">Личный список</p>
+            <div class="favorites-hero__row">
+                <div>
+                    <h1 class="favorites-title">Избранные товары</h1>
+                    <p class="favorites-description">
+                        Здесь собраны товары, которые вы хотите сохранить для быстрого возврата к ним позже.
+                    </p>
+                </div>
+                <div class="favorites-counter">
+                    <span class="favorites-counter__value" data-favorites-count-value>{{ favorite_count }}</span>
+                    <span class="favorites-counter__label" data-favorites-count-label>товаров</span>
+                </div>
+            </div>
+        </section>
+
+        <section class="favorites-list" aria-label="Список избранных товаров">
+            {% include "_fragments/item-grid.html" with items=items empty_message="В избранном пока нет товаров." favorites_grid=True %}
+        </section>
+    </main>
+
+    {% include "_fragments/footer.html" %}
+{% endblock %}