bugfix reconciliation extractor

tests/migration/test_contestation_resolved_value_relational.py

@@ -0,0 +1,90 @@
+from __future__ import annotations
+
+import asyncio
+
+from contas_mcp.servers.contas_mcp_server import main
+
+
+def _analysis():
+    return {
+        "currentInvoice": [
+            {
+                "type": "servicos_contratados_de_parceiros",
+                "items": [
+                    {"desc": "Tamboro Mensal", "value": "14.99", "contestable": True, "classe": "avulso"},
+                    {"desc": "Tamboro Mensal", "value": "19.99", "contestable": True, "classe": "avulso"},
+                    {"desc": "Outro Produto", "value": "19.99", "contestable": True, "classe": "avulso"},
+                ],
+            }
+        ]
+    }
+
+
+def test_subject_catalog_does_not_choose_arbitrary_value_for_repeated_subject():
+    catalog = main._invoice_subject_catalog({"billing_analysis": _analysis()})
+    tamboro = next(x for x in catalog if x["name"] == "Tamboro Mensal")
+    assert sorted(tamboro["values"]) == [14.99, 19.99]
+    assert tamboro["value"] is None
+
+
+def test_preflight_does_not_resolve_value_from_subject_when_subject_has_multiple_values(monkeypatch):
+    class DummyClient:
+        def billing_analysis(self, _msisdn):
+            return _analysis()
+
+    class DummyService:
+        client = DummyClient()
+
+    monkeypatch.setattr(main, "service", DummyService())
+    args = {
+        "msisdn": "11999999999",
+        "subject": "Tamboro Mensal",
+        "query": "não reconheço esse Tamboro Mensal",
+        "billing_analysis": _analysis(),
+        "resolved_value": "25.5",
+    }
+    # The resolver may continue to normal validation, but it must not retain an
+    # arbitrary/stale resolved_value just because the subject matched.
+    main._preflight_subject("contestar_cobranca", args)
+    assert args["subject"] == "Tamboro Mensal"
+    assert args.get("resolved_value") is None
+
+
+def test_invalid_amount_is_candidate_not_resolved(monkeypatch):
+    async def no_enrich(_name, _args):
+        return None
+    monkeypatch.setattr(main, "_enrich_invoice_context", no_enrich)
+    monkeypatch.setattr(main, "_preflight_subject", lambda *_a, **_k: None)
+    args = {
+        "msisdn": "11999999999",
+        "subject": "Tamboro Mensal",
+        "valor": 25.5,
+        "billing_analysis": _analysis(),
+        "target_tool": "contestar_cobranca",
+    }
+    result = asyncio.run(main._validate_contestation(args))
+    assert result["eligible"] is False
+    assert result["status"] == "NEEDS_PARAMETER"
+    assert result["parameter"] == "valor"
+    assert result["candidate_value"] == 25.5
+    assert result["resolved_value"] is None
+
+
+def test_valid_amount_is_resolved_only_after_subject_amount_validation(monkeypatch):
+    async def no_enrich(_name, _args):
+        return None
+    monkeypatch.setattr(main, "_enrich_invoice_context", no_enrich)
+    monkeypatch.setattr(main, "_preflight_subject", lambda *_a, **_k: None)
+    args = {
+        "msisdn": "11999999999",
+        "subject": "Tamboro Mensal",
+        "valor": 19.99,
+        "billing_analysis": _analysis(),
+        "target_tool": "contestar_cobranca",
+    }
+    result = asyncio.run(main._validate_contestation(args))
+    assert result["eligible"] is True
+    assert result["resolved_value"] == 19.99
+    resolved = result["transaction_decision"]["resolved_arguments"]
+    assert resolved["subject"] == "Tamboro Mensal"
+    assert resolved["resolved_value"] == 19.99