feat: setup pagination to find all invoice api

apps/edr-freight-api/src/modules/billing/billing.service.ts

@@ -125,7 +125,7 @@ export class BillingService {
     private readonly payment: PaymentService,
     private readonly companies: CompaniesService,
     private readonly invoiceDocuments: InvoiceDocumentService,
-  ) { }
+  ) {}
 
   // ── Reads ──────────────────────────────────────────────────────────────────
 
@@ -134,9 +134,56 @@ export class BillingService {
     return this.invoices.findAll({ order: { issuedAt: "DESC" } });
   }
 
+  /**
+   * Paginated invoice list for the backoffice — optionally narrowed to a
+   * company (customer detail "Invoices" tab) and/or status/search (global
+   * invoices page).
+   */
+  async findAllPaginated(
+    filter: {
+      companyId?: string;
+      status?: Freight.InvoiceStatus;
+      search?: string;
+      page?: number;
+      pageSize?: number;
+    } = {},
+  ): Promise<{ items: Invoice[]; total: number }> {
+    const page = filter.page && filter.page > 0 ? filter.page : 1;
+    const pageSize =
+      filter.pageSize && filter.pageSize > 0 ? filter.pageSize : 20;
+
+    const qb = this.dataSource
+      .getRepository(Invoice)
+      .createQueryBuilder("invoice")
+      .leftJoinAndSelect("invoice.company", "company")
+      .orderBy("invoice.issuedAt", "DESC")
+      .skip((page - 1) * pageSize)
+      .take(pageSize);
+
+    if (filter.companyId) {
+      qb.andWhere("invoice.companyId = :companyId", {
+        companyId: filter.companyId,
+      });
+    }
+    if (filter.status) {
+      qb.andWhere("invoice.status = :status", { status: filter.status });
+    }
+    if (filter.search) {
+      qb.andWhere(
+        "(invoice.invoiceNumber ILIKE :search OR invoice.sourceId ILIKE :search)",
+        { search: `%${filter.search}%` },
+      );
+    }
+
+    const [items, total] = await qb.getManyAndCount();
+    return { items, total };
+  }
+
   /** Invoice header plus its line items. */
   async findById(id: string): Promise<Invoice & { lines: InvoiceLine[] }> {
-    const invoice = await this.invoices.findById(id);
+    const invoice = await this.invoices.findById(id, {
+      relations: { company: true, companyProfile: true },
+    });
     if (!invoice) throw new NotFoundException(`Invoice ${id} not found`);
     const lines = await this.invoiceLines.findAll({
       where: { invoiceId: id },
@@ -375,7 +422,7 @@ export class BillingService {
       input.dueAt ??
       new Date(
         Date.now() +
-        (input.dueInDays ?? DEFAULT_DUE_DAYS) * 24 * 60 * 60 * 1000,
+          (input.dueInDays ?? DEFAULT_DUE_DAYS) * 24 * 60 * 60 * 1000,
       );
 
     const invoiceNumber = await this.nextInvoiceNumber(mg);