commit4

app/Modules/Workshop/WorkshopCommercialState.php

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+<?php
+namespace App\Modules\Workshop;
+use Illuminate\Support\Facades\{DB,Schema};
+final class WorkshopCommercialState {
+ public static function linked(string $area,int $id): bool {
+  if(!Schema::hasTable('wb_generations'))return false;$column=$area==='service_drafts'?'service_draft_id':'billing_draft_id';
+  if(DB::table('wb_generations')->where($column,$id)->exists())return true;
+  if(!Schema::hasTable('wc_applications'))return false;
+  return DB::table('wc_applications')->where($area==='service_drafts'?'new_service_id':'new_billing_id',$id)->exists();
+ }
+ public static function state(string $area,int $id): ?string {
+  if(!self::linked($area,$id))return null;if(!Schema::hasTable('wc_applications'))return 'current';
+  $event=DB::table('wc_applications')->where($area==='service_drafts'?'old_service_id':'old_billing_id',$id)->first();
+  return $event?($event->kind==='replace'?'superseded':'cancelled'):'current';
+ }
+ public static function assertCurrent(string $area,int $id): void {
+  $state=self::state($area,$id);abort_if($state!==null&&$state!=='current',409,'Preparação comercial substituída ou cancelada; apenas consulta histórica.');
+ }
+}