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

<?php

namespace App\Services\ItemMaster;

use App\Models\ItemMaster\CustomTab;
use App\Models\ItemMaster\EntityRelationship;
use App\Models\ItemMaster\ItemField;
use App\Models\ItemMaster\ItemMasterField;
use App\Models\ItemMaster\ItemPage;
use App\Models\ItemMaster\ItemSection;
use App\Models\ItemMaster\UnitOption;
use App\Services\Service;

class ItemMasterService extends Service
{
    /**
     * 초기화 데이터 로드
     *
     * - pages (linkedSections 기반 중첩)
     * - sections (모든 독립 섹션)
     * - masterFields
     * - customTabs (columnSetting 포함)
     * - unitOptions
     */
    public function init(): array
    {
        $tenantId = $this->tenantId();

        // 1. 페이지 목록
        $pages = ItemPage::where('tenant_id', $tenantId)
            ->where('is_active', 1)
            ->get();

        // 2. 페이지별 linkedSections 조회 (entity_relationships 기반)
        $pagesWithSections = $pages->map(function ($page) use ($tenantId) {
            $linkedSections = $this->getLinkedSections($tenantId, $page->id);

            return [
                'id' => $page->id,
                'tenant_id' => $page->tenant_id,
                'group_id' => $page->group_id,
                'page_name' => $page->page_name,
                'item_type' => $page->item_type,
                'absolute_path' => $page->absolute_path,
                'is_active' => $page->is_active,
                'created_by' => $page->created_by,
                'updated_by' => $page->updated_by,
                'created_at' => $page->created_at,
                'updated_at' => $page->updated_at,
                'sections' => $linkedSections,
            ];
        });

        // 3. 모든 독립 섹션 (재사용 가능 목록)
        $sections = ItemSection::where('tenant_id', $tenantId)
            ->with(['fields', 'bomItems'])
            ->orderBy('created_at', 'desc')
            ->get();

        // 4. 마스터 필드
        $masterFields = ItemMasterField::where('tenant_id', $tenantId)->get();

        // 5. 커스텀 탭 (컬럼 설정 포함)
        $customTabs = CustomTab::with('columnSetting')
            ->where('tenant_id', $tenantId)
            ->orderBy('order_no')
            ->get();

        // 6. 단위 옵션
        $unitOptions = UnitOption::where('tenant_id', $tenantId)->get();

        return [
            'pages' => $pagesWithSections,
            'sections' => $sections,
            'masterFields' => $masterFields,
            'customTabs' => $customTabs,
            'unitOptions' => $unitOptions,
        ];
    }

    /**
     * 페이지에 연결된 섹션 조회 (entity_relationships 기반)
     */
    private function getLinkedSections(int $tenantId, int $pageId): array
    {
        // 페이지-섹션 관계 조회
        $relationships = EntityRelationship::where('tenant_id', $tenantId)
            ->where('parent_type', EntityRelationship::TYPE_PAGE)
            ->where('parent_id', $pageId)
            ->where('child_type', EntityRelationship::TYPE_SECTION)
            ->orderBy('order_no')
            ->get();

        $sections = [];
        foreach ($relationships as $rel) {
            $section = ItemSection::with(['fields', 'bomItems'])
                ->find($rel->child_id);

            if ($section) {
                // 섹션에 연결된 필드 (entity_relationships 기반)
                $linkedFields = $this->getLinkedFields($tenantId, $section->id);

                $sectionData = $section->toArray();
                $sectionData['order_no'] = $rel->order_no;

                // FK 기반 필드 + 링크 기반 필드 병합
                if (! empty($linkedFields)) {
                    $sectionData['fields'] = $linkedFields;
                }

                $sections[] = $sectionData;
            }
        }

        return $sections;
    }

    /**
     * 섹션에 연결된 필드 조회 (entity_relationships 기반)
     */
    private function getLinkedFields(int $tenantId, int $sectionId): array
    {
        $relationships = EntityRelationship::where('tenant_id', $tenantId)
            ->where('parent_type', EntityRelationship::TYPE_SECTION)
            ->where('parent_id', $sectionId)
            ->where('child_type', EntityRelationship::TYPE_FIELD)
            ->orderBy('order_no')
            ->get();

        $fields = [];
        foreach ($relationships as $rel) {
            $field = ItemField::find($rel->child_id);
            if ($field) {
                $fieldData = $field->toArray();
                $fieldData['order_no'] = $rel->order_no;
                $fields[] = $fieldData;
            }
        }

        return $fields;
    }
}