feat(admin): add category and attribute controllers

src/Controllers/Admin/AttributeController.php

@@ -0,0 +1,57 @@
+<?php
+
+namespace Bazaar\Controllers\Admin;
+
+use Bazaar\Controllers\Controller;
+use Bazaar\Core\Response;
+
+final class AttributeController extends Controller
+{
+    public function index(): Response
+    {
+        return $this->view('admin.attributes.index', [
+            'attributes' => $this->ctx->attributes->withValues(),
+        ], 'admin.layout');
+    }
+
+    public function store(): Response
+    {
+        $name = trim((string) $this->ctx->request->input('name', ''));
+        if ($name === '') {
+            $this->ctx->session->flash('error', 'Attribute name is required.');
+            return $this->redirect('/admin/attributes');
+        }
+        $slug = slugify($name);
+        if ($this->ctx->attributes->findBySlug($slug) === null) {
+            $this->ctx->attributes->create($name, $slug);
+            $this->ctx->session->flash('success', 'Attribute created.');
+        } else {
+            $this->ctx->session->flash('error', 'That attribute already exists.');
+        }
+        return $this->redirect('/admin/attributes');
+    }
+
+    public function storeValue(string $id): Response
+    {
+        $attributeId = (int) $id;
+        $attribute = $this->ctx->attributes->find($attributeId);
+        if ($attribute === null) {
+            return $this->notFound();
+        }
+
+        $value = trim((string) $this->ctx->request->input('value', ''));
+        if ($value === '') {
+            $this->ctx->session->flash('error', 'Value is required.');
+            return $this->redirect('/admin/attributes');
+        }
+
+        $slug = slugify($value);
+        if ($this->ctx->attributes->findValueBySlug($attributeId, $slug) === null) {
+            $this->ctx->attributes->createValue($attributeId, $value, $slug);
+            $this->ctx->session->flash('success', 'Value added.');
+        } else {
+            $this->ctx->session->flash('error', 'That value already exists for this attribute.');
+        }
+        return $this->redirect('/admin/attributes');
+    }
+}

src/Controllers/Admin/CategoryController.php

@@ -0,0 +1,102 @@
+<?php
+
+namespace Bazaar\Controllers\Admin;
+
+use Bazaar\Controllers\Controller;
+use Bazaar\Core\Response;
+
+final class CategoryController extends Controller
+{
+    public function index(): Response
+    {
+        return $this->view('admin.categories.index', [
+            'categories' => $this->ctx->categories->withProductCounts(),
+        ], 'admin.layout');
+    }
+
+    public function create(): Response
+    {
+        return $this->view('admin.categories.form', [
+            'category' => null,
+            'errors' => [],
+        ], 'admin.layout');
+    }
+
+    public function store(): Response
+    {
+        [$fields, $errors] = $this->validate();
+        if ($errors !== []) {
+            return $this->view('admin.categories.form', [
+                'category' => $fields,
+                'errors' => $errors,
+            ], 'admin.layout', 422);
+        }
+
+        $this->ctx->categories->create($fields['name'], $fields['slug'], $fields['description']);
+        $this->ctx->session->flash('success', 'Category created.');
+        return $this->redirect('/admin/categories');
+    }
+
+    public function edit(string $id): Response
+    {
+        $category = $this->ctx->categories->find((int) $id);
+        if ($category === null) {
+            return $this->notFound();
+        }
+
+        return $this->view('admin.categories.form', [
+            'category' => $category,
+            'errors' => [],
+        ], 'admin.layout');
+    }
+
+    public function update(string $id): Response
+    {
+        $category = $this->ctx->categories->find((int) $id);
+        if ($category === null) {
+            return $this->notFound();
+        }
+
+        [$fields, $errors] = $this->validate();
+        if ($errors !== []) {
+            return $this->view('admin.categories.form', [
+                'category' => array_merge($category, $fields),
+                'errors' => $errors,
+            ], 'admin.layout', 422);
+        }
+
+        $this->ctx->categories->update((int) $id, $fields['name'], $fields['slug'], $fields['description']);
+        $this->ctx->session->flash('success', 'Category updated.');
+        return $this->redirect('/admin/categories');
+    }
+
+    public function destroy(string $id): Response
+    {
+        $this->ctx->categories->delete((int) $id);
+        $this->ctx->session->flash('success', 'Category deleted.');
+        return $this->redirect('/admin/categories');
+    }
+
+    private function validate(): array
+    {
+        $request = $this->ctx->request;
+        $name = trim((string) $request->input('name', ''));
+        $slug = trim((string) $request->input('slug', ''));
+        if ($slug === '') {
+            $slug = slugify($name);
+        }
+
+        $errors = [];
+        if ($name === '') {
+            $errors['name'] = 'Name is required.';
+        }
+
+        $fields = [
+            'name' => $name,
+            'slug' => $slug,
+            'description' => trim((string) $request->input('description', '')),
+        ];
+
+        return [$fields, $errors];
+    }
+}