<?php

declare(strict_types=1);

namespace App\Http\Controllers\Api\V1;

use App\Http\Controllers\Controller;
use App\Http\Controllers\Api\V1\Traits\VerifiesOrganisationEvent;
use App\Http\Requests\Api\V1\ImportFromEventRequest;
use App\Http\Requests\Api\V1\ReorderRegistrationFormFieldsRequest;
use App\Http\Requests\Api\V1\StoreRegistrationFormFieldRequest;
use App\Http\Requests\Api\V1\UpdateRegistrationFormFieldRequest;
use App\Http\Resources\Api\V1\RegistrationFormFieldResource;
use App\Models\Event;
use App\Models\Organisation;
use App\Models\RegistrationFieldTemplate;
use App\Models\RegistrationFormField;
use App\Services\RegistrationFieldTemplateService;
use App\Services\RegistrationFormFieldService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\AnonymousResourceCollection;
use Illuminate\Support\Facades\Gate;

final class RegistrationFormFieldController extends Controller
{
    use VerifiesOrganisationEvent;

    public function __construct(
        private readonly RegistrationFormFieldService $service,
        private readonly RegistrationFieldTemplateService $templateService,
    ) {}

    public function index(Organisation $organisation, Event $event): AnonymousResourceCollection
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('viewAny', [RegistrationFormField::class, $event]);

        $fields = $this->service->listForEvent($event);

        return RegistrationFormFieldResource::collection($fields);
    }

    public function store(StoreRegistrationFormFieldRequest $request, Organisation $organisation, Event $event): JsonResponse
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('create', [RegistrationFormField::class, $event]);

        $field = $this->service->createField($event, $request->validated());

        return $this->created(new RegistrationFormFieldResource($field));
    }

    public function update(
        UpdateRegistrationFormFieldRequest $request,
        Organisation $organisation,
        Event $event,
        RegistrationFormField $registrationField,
    ): JsonResponse {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('update', [$registrationField, $event]);

        $field = $this->service->updateField($registrationField, $request->validated());

        return $this->success(new RegistrationFormFieldResource($field));
    }

    public function destroy(Organisation $organisation, Event $event, RegistrationFormField $registrationField): JsonResponse
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('delete', [$registrationField, $event]);

        $this->service->deleteField($registrationField);

        return response()->json(null, 204);
    }

    public function reorder(ReorderRegistrationFormFieldsRequest $request, Organisation $organisation, Event $event): JsonResponse
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('reorder', [RegistrationFormField::class, $event]);

        $this->service->reorderFields($event, $request->validated()['ids']);

        return response()->json(null, 204);
    }

    public function fromTemplate(Request $request, Organisation $organisation, Event $event): JsonResponse
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('create', [RegistrationFormField::class, $event]);

        $request->validate([
            'template_id' => ['required', 'ulid', 'exists:registration_field_templates,id'],
        ]);

        $template = RegistrationFieldTemplate::findOrFail($request->input('template_id'));

        if ($template->organisation_id !== $event->organisation_id) {
            return $this->error('Template does not belong to this organisation.', 422);
        }

        $field = $this->templateService->createFieldFromTemplate($event, $template);

        return $this->created(new RegistrationFormFieldResource($field));
    }

    public function importFromEvent(ImportFromEventRequest $request, Organisation $organisation, Event $event): JsonResponse
    {
        $this->verifyEventBelongsToOrganisation($organisation, $event);
        Gate::authorize('create', [RegistrationFormField::class, $event]);

        $sourceEvent = Event::findOrFail($request->validated()['source_event_id']);

        $fields = $this->service->importFromEvent($event, $sourceEvent);

        return $this->success(RegistrationFormFieldResource::collection($fields));
    }
}