feat(fusion_accounting_ai): add BankRecAdapter for tri-mode bank-rec lookups

Made-with: Cursor

fusion_accounting_ai/services/data_adapters/__init__.py

@@ -1,4 +1,7 @@
 from .base import DataAdapter, AdapterMode
 from ._registry import get_adapter, register_adapter
 
+# Side-effect imports: each adapter module calls register_adapter at module load.
+from . import bank_rec  # noqa: F401
+
 __all__ = ['DataAdapter', 'AdapterMode', 'get_adapter', 'register_adapter']

fusion_accounting_ai/services/data_adapters/bank_rec.py

@@ -0,0 +1,53 @@
+"""Bank reconciliation data adapter.
+
+Routes bank-rec data lookups across:
+- FUSION:    fusion.bank.rec.widget (added by fusion_accounting_bank_rec, Phase 1)
+- ENTERPRISE: account_accountant's bank_rec_widget JS service
+- COMMUNITY: pure search on account.bank.statement.line
+"""
+
+from .base import DataAdapter
+from ._registry import register_adapter
+
+
+class BankRecAdapter(DataAdapter):
+    FUSION_MODEL = 'fusion.bank.rec.widget'
+    ENTERPRISE_MODULE = 'account_accountant'
+
+    def list_unreconciled(self, journal_id, limit=100):
+        """Return unreconciled bank statement lines for a journal."""
+        return self._dispatch('list_unreconciled', journal_id=journal_id, limit=limit)
+
+    def list_unreconciled_via_fusion(self, journal_id, limit=100):
+        # Phase 1 will add fusion.bank.rec.widget; this method becomes the primary path.
+        # For now: even when the model exists, delegate to community read shape.
+        return self.list_unreconciled_via_community(journal_id=journal_id, limit=limit)
+
+    def list_unreconciled_via_enterprise(self, journal_id, limit=100):
+        # Enterprise's bank rec uses a JS-side service; from Python the cleanest
+        # backend access is the same Community search (the data lives in
+        # account.bank.statement.line either way). This adapter's purpose is
+        # to expose a stable shape to AI tools regardless of which UI the user has.
+        return self.list_unreconciled_via_community(journal_id=journal_id, limit=limit)
+
+    def list_unreconciled_via_community(self, journal_id, limit=100):
+        Line = self.env['account.bank.statement.line'].sudo()
+        records = Line.search([
+            ('journal_id', '=', journal_id),
+            ('is_reconciled', '=', False),
+        ], limit=limit, order='date desc, id desc')
+        return [
+            {
+                'id': r.id,
+                'date': r.date,
+                'payment_ref': r.payment_ref,
+                'amount': r.amount,
+                'partner_id': r.partner_id.id if r.partner_id else None,
+                'partner_name': r.partner_id.name if r.partner_id else None,
+                'currency_id': r.currency_id.id if r.currency_id else None,
+            }
+            for r in records
+        ]
+
+
+register_adapter('bank_rec', BankRecAdapter)