Documentos de compra

Pedidos de compra

GET    /api/purchases                    # Listar
GET    /api/purchases/:id                # Detalle
GET    /api/purchases/:id/pdf            # PDF
POST   /api/purchases                    # Crear
POST   /api/purchases/:id/cancel         # Cancelar

Albaranes de compra

GET    /api/purchases/delivery-notes             # Listar
GET    /api/purchases/delivery-notes/:id         # Detalle
GET    /api/purchases/delivery-notes/:id/pdf     # PDF
POST   /api/purchases/delivery-notes             # Crear
POST   /api/purchases/delivery-notes/:id/cancel  # Cancelar
DELETE /api/purchases/delivery-notes/:id         # Eliminar

Al crear un albaran de compra se suma stock al almacen.

Facturas de compra

GET    /api/purchases/invoices                   # Listar
GET    /api/purchases/invoices/:id               # Detalle
GET    /api/purchases/invoices/:id/pdf           # PDF
POST   /api/purchases/invoices                   # Crear
POST   /api/purchases/invoices/:id/post          # Asentar
POST   /api/purchases/invoices/:id/cancel        # Cancelar
DELETE /api/purchases/invoices/:id               # Eliminar (borradores)

Flujo de documentos

Pedido de compra (PO)
  → Albaran de compra (PDN) — suma stock
    → Factura de compra (PINV) — cierra el albaran

Lotes en recepcion

Los albaranes de compra soportan lotes con fecha de caducidad:

{
  "lines": [
    {
      "itemId": "uuid",
      "quantity": 100,
      "price": 10,
      "taxGroupId": "uuid",
      "batchDetails": [
        { "batchNum": "LOTE-2026-A", "quantity": 60, "expiryDate": "2027-01-01" },
        { "batchNum": "LOTE-2026-B", "quantity": 40, "expiryDate": "2027-06-01" }
      ]
    }
  ]
}