<?php

declare(strict_types=1);

namespace App\Http\Resources;

use App\Models\Page;
use App\Support\ImagePayload;
use App\Support\TranslatablePayload;
use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

/**
 * @mixin Page
 */
class PageResource extends JsonResource
{
    /**
     * @return array<string, mixed>
     */
    public function toArray(Request $request): array
    {
        $locale = $request->query(config('locales.query_parameter')) ?? app()->getLocale();
        $resolved = TranslatablePayload::resolve($this->resource, $this->translatable, $locale);

        return [
            'id' => $this->id,
            'locale' => $locale,

            ...$resolved,

            'status' => $this->status->value,
            'status_label' => $this->status->getLabel(),
            'is_featured' => $this->is_featured,
            // The stored path, because this is the editing API and it is
            // what a client PATCHes back. What was *derived* from it travels
            // alongside rather than replacing it.
            'featured_image' => $this->featured_image,
            'featured_image_media' => ImagePayload::make(
                $this->featured_image,
                $this->resource->relationLoaded('featuredMedia') ? $this->resource->getRelation('featuredMedia') : null,
                $resolved['featured_image_alt'] ?? null,
            ),
            'published_at' => $this->published_at?->toIso8601String(),
            'unpublish_at' => $this->unpublish_at?->toIso8601String(),
            'created_at' => $this->created_at?->toIso8601String(),
            'updated_at' => $this->updated_at?->toIso8601String(),
            'deleted_at' => $this->deleted_at?->toIso8601String(),

            'category' => CategoryResource::make($this->whenLoaded('category')),
            'author' => UserResource::make($this->whenLoaded('author')),

            // Opt-in: `?with=translations` returns every language at once,
            // which is what a translation UI needs and a page renderer does not.
            'translations' => $this->when(
                in_array('translations', explode(',', (string) $request->query('with')), true),
                fn () => TranslatablePayload::all($this->resource, $this->translatable),
            ),
        ];
    }
}