contrat nad booking modification

apps/edr-freight-api/src/modules/rule-engine/services/approval-rules.service.ts

@@ -1,5 +1,6 @@
 import { PaginatedResponse } from '@edr/types';
 import { BadRequestException, Inject, Injectable, NotFoundException } from '@nestjs/common';
+import { DataSource } from 'typeorm';
 import { CreateApprovalRuleDto } from '../dto/create-approval-rule.dto';
 import { ListApprovalRulesQueryDto } from '../dto/list-rule-engine-query.dto';
 import { ReorderItemsDto } from '../dto/reorder-items.dto';
@@ -17,6 +18,7 @@ export class ApprovalRulesService {
     @Inject(APPROVAL_RULES_REPOSITORY)
     private readonly repository: IApprovalRulesRepository,
     private readonly displayOrder: DisplayOrderService,
+    private readonly dataSource: DataSource,
   ) {}
 
   /** List approval rules — standard paginated envelope with server-side search. */
@@ -29,6 +31,21 @@ export class ApprovalRulesService {
     return this.repository.findChainForCargo(requiresDirectorApproval);
   }
 
+  /**
+   * IAM position types, for the approval-step role picker. A chain step names
+   * the position type that must approve it, so this is the vocabulary an admin
+   * builds chains from. Read straight from the shared `iam` schema — the same
+   * pattern the freight API already uses for `iam.users`.
+   */
+  async listPositionTypes(): Promise<Array<{ label: string; value: string }>> {
+    const rows = await this.dataSource.query<
+      Array<{ key: string; label: string }>
+    >(`SELECT key, COALESCE(name->>'en', key) AS label
+         FROM iam.position_types
+        ORDER BY 2`);
+    return rows.map((row) => ({ label: row.label, value: row.key }));
+  }
+
   /** Get an approval rule by ID. */
   async findById(id: string): Promise<ApprovalRule> {
     const entity = await this.repository.findById(id);