sam-api/app/Services/ItemMaster/SectionTemplateService.php

<?php

namespace App\Services\ItemMaster;

use App\Models\ItemMaster\EntityRelationship;
use App\Models\ItemMaster\ItemPage;
use App\Models\ItemMaster\ItemSection;
use App\Services\Service;
use Illuminate\Database\Eloquent\Collection;
use Symfony\Component\HttpKernel\Exception\NotFoundHttpException;

/**
 * SectionTemplateService
 *
 * 섹션 관리 서비스 (참조 방식)
 * - 섹션은 독립 엔티티로 생성
 * - 페이지와는 entity_relationships로 링크 연결
 */
class SectionTemplateService extends Service
{
    /**
     * 섹션 목록 (독립 섹션 전체)
     */
    public function index(): Collection
    {
        $tenantId = $this->tenantId();

        $sections = ItemSection::where('tenant_id', $tenantId)
            ->orderBy('created_at', 'desc')
            ->get();

        // entity_relationships 기반이므로 각 섹션별로 관련 엔티티 로드
        $sections->each(fn ($section) => $section->loadRelatedEntities());

        return $sections;
    }

    /**
     * 독립 섹션 생성 (page_id가 있으면 링크도 연결)
     *
     * @param  array  $data  ['page_id'(optional), 'title', 'type', 'description', 'is_default']
     */
    public function store(array $data): ItemSection
    {
        $tenantId = $this->tenantId();
        $userId = $this->apiUserId();
        $pageId = $data['page_id'] ?? null;

        // page_id가 있으면 페이지 존재 확인
        if ($pageId) {
            $page = ItemPage::where('tenant_id', $tenantId)->find($pageId);
            if (! $page) {
                throw new NotFoundHttpException(__('error.page_not_found'));
            }
        }

        // 1. 독립 섹션 생성
        $section = ItemSection::create([
            'tenant_id' => $tenantId,
            'group_id' => 1,
            'title' => $data['title'],
            'type' => $data['type'],
            'order_no' => 0,
            'is_template' => false,
            'is_default' => $data['is_default'] ?? false,
            'description' => $data['description'] ?? null,
            'created_by' => $userId,
        ]);

        // 2. page_id가 있으면 링크 연결
        if ($pageId) {
            $maxOrderNo = EntityRelationship::where('tenant_id', $tenantId)
                ->where('parent_type', EntityRelationship::TYPE_PAGE)
                ->where('parent_id', $pageId)
                ->where('child_type', EntityRelationship::TYPE_SECTION)
                ->max('order_no') ?? -1;

            EntityRelationship::link(
                $tenantId,
                EntityRelationship::TYPE_PAGE,
                $pageId,
                EntityRelationship::TYPE_SECTION,
                $section->id,
                $maxOrderNo + 1
            );
        }

        return $section->loadRelatedEntities();
    }

    /**
     * 섹션 수정
     */
    public function update(int $id, array $data): ItemSection
    {
        $tenantId = $this->tenantId();
        $userId = $this->apiUserId();

        $section = ItemSection::where('tenant_id', $tenantId)
            ->where('id', $id)
            ->first();

        if (! $section) {
            throw new NotFoundHttpException(__('error.section_not_found'));
        }

        $section->update([
            'title' => $data['title'] ?? $section->title,
            'type' => $data['type'] ?? $section->type,
            'description' => $data['description'] ?? $section->description,
            'is_default' => $data['is_default'] ?? $section->is_default,
            'updated_by' => $userId,
        ]);

        return $section->fresh()->loadRelatedEntities();
    }

    /**
     * 섹션 삭제 (Soft Delete) + 링크 해제
     */
    public function destroy(int $id): void
    {
        $tenantId = $this->tenantId();
        $userId = $this->apiUserId();

        $section = ItemSection::where('tenant_id', $tenantId)
            ->where('id', $id)
            ->first();

        if (! $section) {
            throw new NotFoundHttpException(__('error.section_not_found'));
        }

        // 1. 모든 부모 링크 해제 (페이지-섹션 관계)
        EntityRelationship::where('tenant_id', $tenantId)
            ->where('child_type', EntityRelationship::TYPE_SECTION)
            ->where('child_id', $id)
            ->delete();

        // 2. 모든 자식 링크 해제 (섹션-필드, 섹션-BOM 관계)
        EntityRelationship::where('tenant_id', $tenantId)
            ->where('parent_type', EntityRelationship::TYPE_SECTION)
            ->where('parent_id', $id)
            ->delete();

        // 3. 섹션 Soft Delete
        $section->update(['deleted_by' => $userId]);
        $section->delete();

        // 4. 하위 필드/BOM도 Soft Delete
        $section->loadRelatedEntities();

        foreach ($section->getRelation('fields') as $field) {
            $field->update(['deleted_by' => $userId]);
            $field->delete();
        }

        foreach ($section->getRelation('bomItems') as $bomItem) {
            $bomItem->update(['deleted_by' => $userId]);
            $bomItem->delete();
        }
    }
}