<?php

namespace App\Http\Resources\Api\V1;

use Illuminate\Http\Request;
use Illuminate\Http\Resources\Json\JsonResource;

class BendingItemResource extends JsonResource
{
    public function toArray(Request $request): array
    {
        return [
            'id' => $this->id,
            'code' => $this->code,
            'name' => $this->name,
            'item_type' => $this->item_type,
            'item_category' => $this->item_category,
            'unit' => $this->unit,
            'is_active' => $this->is_active,
            // options → 최상위로 노출
            'item_name' => $this->getOption('item_name'),
            'item_sep' => $this->getOption('item_sep'),
            'item_bending' => $this->getOption('item_bending'),
            'item_spec' => $this->getOption('item_spec'),
            'material' => $this->getOption('material'),
            'model_name' => $this->getOption('model_name'),
            'model_UA' => $this->getOption('model_UA'),
            'search_keyword' => $this->getOption('search_keyword'),
            'rail_width' => $this->getOption('rail_width'),
            'registration_date' => $this->getOption('registration_date'),
            'author' => $this->getOption('author'),
            'memo' => $this->getOption('memo'),
            // 케이스 전용
            'exit_direction' => $this->getOption('exit_direction'),
            'front_bottom_width' => $this->getOption('front_bottom_width'),
            'box_width' => $this->getOption('box_width'),
            'box_height' => $this->getOption('box_height'),
            // 전개도
            'bendingData' => $this->getOption('bendingData'),
            // PREFIX 관련
            'prefix' => $this->getOption('prefix'),
            'length_code' => $this->getOption('length_code'),
            'length_mm' => $this->getOption('length_mm'),
            // 추적
            'legacy_bending_num' => $this->getOption('legacy_bending_num'),
            // 계산값
            'width_sum' => $this->getWidthSum(),
            'bend_count' => $this->getBendCount(),
            // 메타
            'created_at' => $this->created_at?->format('Y-m-d H:i:s'),
            'updated_at' => $this->updated_at?->format('Y-m-d H:i:s'),
        ];
    }

    private function getWidthSum(): ?int
    {
        $data = $this->getOption('bendingData', []);
        if (empty($data)) {
            return null;
        }
        $last = end($data);

        return isset($last['sum']) ? (int) $last['sum'] : null;
    }

    private function getBendCount(): int
    {
        $data = $this->getOption('bendingData', []);

        return count(array_filter($data, fn ($d) => ($d['rate'] ?? '') !== ''));
    }
}