<?php

namespace App\Http\Resources\Api\V1;

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

class GuiderailModelResource extends JsonResource
{
    public function toArray(Request $request): array
    {
        $components = $this->getOption('components', []);
        $materialSummary = $this->getOption('material_summary');

        // material_summary가 없으면 components에서 계산
        if (empty($materialSummary) && ! empty($components)) {
            $materialSummary = $this->calcMaterialSummary($components);
        }

        return [
            'id' => $this->id,
            'code' => $this->code,
            'name' => $this->name,
            'item_type' => $this->item_type,
            'item_category' => $this->item_category,
            'is_active' => $this->is_active,
            // 모델 속성
            'model_name' => $this->getOption('model_name'),
            'check_type' => $this->getOption('check_type'),
            'rail_width' => $this->getOption('rail_width'),
            'rail_length' => $this->getOption('rail_length'),
            'finishing_type' => $this->getOption('finishing_type'),
            'item_sep' => $this->getOption('item_sep'),
            'model_UA' => $this->getOption('model_UA'),
            'search_keyword' => $this->getOption('search_keyword'),
            'author' => $this->getOption('author'),
            'memo' => $this->getOption('memo'),
            'registration_date' => $this->getOption('registration_date'),
            // 케이스(SHUTTERBOX_MODEL) 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'),
            // 하단마감재(BOTTOMBAR_MODEL) 전용
            'bar_width' => $this->getOption('bar_width'),
            'bar_height' => $this->getOption('bar_height'),
            // 부품 조합
            'components' => $components,
            'material_summary' => $materialSummary,
            'component_count' => count($components),
            // 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 calcMaterialSummary(array $components): array
    {
        $summary = [];
        foreach ($components as $comp) {
            $material = $comp['material'] ?? null;
            $widthSum = $comp['width_sum'] ?? 0;
            $qty = $comp['quantity'] ?? 1;
            if ($material && $widthSum) {
                $summary[$material] = ($summary[$material] ?? 0) + ($widthSum * $qty);
            }
        }

        return $summary;
    }
}