feat: add create collection controller + validator

app/controllers/collections_controller.ts

@@ -1,3 +1,30 @@
-// import type { HttpContext } from '@adonisjs/core/http';
+import PATHS from '#constants/paths';
+import Collection from '#models/collection';
+import { collectionValidator } from '#validators/collection';
+import type { HttpContext } from '@adonisjs/core/http';
 
-export default class CollectionsController {}
+export default class CollectionsController {
+  async index({ inertia }: HttpContext) {
+    return inertia.render('app');
+  }
+
+  async showCreatePage({ inertia }: HttpContext) {
+    return inertia.render('collection/create');
+  }
+
+  async store({ request, response, auth }: HttpContext) {
+    const payload = await request.validateUsing(collectionValidator);
+    const collection = await Collection.create({
+      ...payload,
+      authorId: auth.user?.id!,
+    });
+    return this.redirectToCollectionId(response, collection.id);
+  }
+
+  private redirectToCollectionId(
+    response: HttpContext['response'],
+    collectionId: Collection['id']
+  ) {
+    return response.redirect(`${PATHS.APP}?categoryId=${collectionId}`);
+  }
+}