added pdf generation for all orders

PyroFetes/Endpoints/PurchaseOrders/GetPurchaseOrderPdfEndpoint.cs

@@ -0,0 +1,39 @@
+using FastEndpoints;
+using PyroFetes.DTO.PurchaseOrder.Request;
+using PyroFetes.Models;
+using PyroFetes.Repositories;
+using PyroFetes.Services.Pdf;
+using PyroFetes.Specifications.PurchaseOrders;
+namespace PyroFetes.Endpoints.PurchaseOrders;
+
+public class GetPurchaseOrderPdfEndpoint(
+    PurchaseOrdersRepository purchaseOrdersRepository,
+    IPurchaseOrderPdfService purchaseOrderPdfService) 
+    : Endpoint<GetPurchaseOrderPdfDto>
+{
+    public override void Configure()
+    {
+        Get("/purchaseOrders/{@Id}/pdf", x => new {x.Id});
+        AllowAnonymous();
+    }
+    
+    public override async Task HandleAsync(GetPurchaseOrderPdfDto req, CancellationToken ct)
+    {
+        PurchaseOrder? purchaseOrder = await purchaseOrdersRepository
+            .FirstOrDefaultAsync(new GetPurchaseOrderByIdWithProductsSpec(req.Id), ct);
+
+        if (purchaseOrder == null)
+        {
+            await Send.NotFoundAsync(ct);
+            return;
+        }
+        
+        var bytes = purchaseOrderPdfService.Generate(purchaseOrder, purchaseOrder.PurchaseProducts!);
+
+        await Send.BytesAsync(
+            bytes: bytes,
+            contentType: "application/pdf",
+            fileName: $"bon-de-commande-{purchaseOrder.Id}.pdf",
+            cancellation: ct);
+    }
+}