[FIX] l10n_es_aeat_sii_match: Look for vendor bill properly

On vendor bills, the invoice number may be repeated across different
vendors, returning an incorrect matching. For minimizing this, we first
look for invoices with the same date, and if more than one match, then
we iterate for finding the one matching (maybe partially) the VAT.

We are not including the VAT comparison on the initial search, because
you may have other identifier set on the partner, and then not returning
any result at all, so we reserve this check only in case of multiple
match.

Author: pedrobaeza

l10n_es_aeat_sii_match/models/aeat_sii_match_report.py

@@ -4,6 +4,7 @@
 
 import copy
 import json
+from datetime import datetime
 
 from dateutil.relativedelta import relativedelta
 from zeep.helpers import serialize_object
@@ -12,6 +13,8 @@
 from odoo.exceptions import UserError
 from odoo.modules.registry import Registry
 
+from odoo.addons.l10n_es_aeat.models.aeat_mixin import AEAT_DATE_FORMAT
+
 SII_VERSION = "1.1"
 
 
@@ -162,13 +165,23 @@ def _get_aeat_odoo_invoices_by_num(self, left_invoices, matched_invoices):
                     limit=1,
                 )
             else:
+                invoice_date = invoice["IDFactura"]["FechaExpedicionFacturaEmisor"]
+                invoice_date = datetime.strptime(invoice_date, AEAT_DATE_FORMAT)
                 odoo_invoice = self.env["account.move"].search(
                     [
                         ("ref", "=", name),
+                        ("invoice_date", "=", invoice_date),
                         ("move_type", "in", ["in_invoice", "in_refund"]),
                     ],
-                    limit=1,
                 )
+                if len(odoo_invoice) > 1:
+                    vat = invoice["IDFactura"]["IDEmisorFactura"].get("NIF", "NO_VALID")
+                    for rec in odoo_invoice:
+                        if vat in rec.partner_id.vat:
+                            odoo_invoice = rec
+                            break
+                    else:
+                        odoo_invoice = False  # Don't match with any of them
             if odoo_invoice and odoo_invoice.id not in list(matched_invoices.keys()):
                 matched_invoices[odoo_invoice.id] = invoice
             else: