🐛 fix(order): reaproveitar selecao textual e priorizar opcoes proximas ao orcamento

- aceita referencias parciais ao modelo a partir da ultima lista de estoque, incluindo prefixos relevantes como T-Cros para T-Cross, sem reiniciar o fluxo de pedido

- ordena a busca de estoque em ordem decrescente quando ha teto de orcamento, mantendo crescente apenas quando o cliente pede explicitamente a opcao mais barata

- amplia as regressões do fluxo de pedido para cobrir selecao textual reaproveitada, confirmacao por modelo e a priorizacao de ofertas mais proximas ao valor informado

app/services/flows/order_flow.py

@@ -363,7 +363,12 @@ class OrderFlowMixin:
         if selected_vehicle:
             payload.update(self._vehicle_to_payload(selected_vehicle))
 
-    def _build_stock_lookup_arguments(self, user_id: int | None, payload: dict | None = None) -> dict:
+    def _build_stock_lookup_arguments(
+        self,
+        user_id: int | None,
+        payload: dict | None = None,
+        message: str | None = None,
+    ) -> dict:
         context = self._get_user_context(user_id)
         generic_memory = context.get("generic_memory", {}) if isinstance(context, dict) else {}
         source = payload if isinstance(payload, dict) else {}
@@ -380,9 +385,36 @@ class OrderFlowMixin:
             arguments["categoria"] = str(perfil[0]).strip().lower()
 
         arguments["limite"] = 5
-        arguments["ordenar_preco"] = "asc"
+        arguments["ordenar_preco"] = self._resolve_stock_price_order(
+            has_budget="preco_max" in arguments,
+            message=message,
+        )
         return arguments
 
+    def _resolve_stock_price_order(self, has_budget: bool, message: str | None = None) -> str:
+        if not has_budget:
+            return "asc"
+
+        normalized = self._normalize_text(message or "").strip()
+        cheaper_first_terms = {
+            "mais barato",
+            "mais baratos",
+            "mais barata",
+            "mais baratas",
+            "menor preco",
+            "menor valor",
+            "mais em conta",
+            "mais economico",
+            "mais economica",
+            "mais acessivel",
+            "mais acessiveis",
+            "baratinho",
+            "baratinhos",
+        }
+        if any(term in normalized for term in cheaper_first_terms):
+            return "asc"
+        return "desc"
+
     def _should_refresh_stock_context(self, user_id: int | None, payload: dict | None = None) -> bool:
         if user_id is None:
             return False
@@ -466,8 +498,101 @@ class OrderFlowMixin:
                 matches.append(item)
         if len(matches) == 1:
             return matches[0]
+        if len(matches) > 1:
+            normalized_matches = {self._normalize_text(str(item.get("modelo") or "")).strip() for item in matches}
+            if len(normalized_matches) == 1:
+                return matches[0]
+
+        reference_tokens = self._extract_vehicle_reference_tokens(message)
+        if not reference_tokens:
+            return None
+
+        scored_matches: list[tuple[int, dict]] = []
+        for item in stock_results:
+            model_tokens = self._extract_vehicle_reference_tokens(str(item.get("modelo") or ""))
+            if not model_tokens:
+                continue
+            score = self._score_vehicle_reference_tokens(reference_tokens, model_tokens)
+            if score > 0:
+                scored_matches.append((score, item))
+        if not scored_matches:
+            return None
+
+        best_score = max(score for score, _ in scored_matches)
+        if best_score <= 0:
+            return None
+        if best_score == 1 and len(reference_tokens) > 1:
+            return None
+
+        best_matches = [item for score, item in scored_matches if score == best_score]
+        if len(best_matches) == 1:
+            return best_matches[0]
+
+        normalized_matches = {self._normalize_text(str(item.get("modelo") or "")).strip() for item in best_matches}
+        if len(normalized_matches) == 1:
+            return best_matches[0]
         return None
 
+    def _extract_vehicle_reference_tokens(self, text: str) -> list[str]:
+        normalized = self._normalize_text(text)
+        raw_tokens = re.findall(r"[a-z0-9]+", normalized)
+        ignored_tokens = {
+            "a",
+            "ao",
+            "aos",
+            "as",
+            "carro",
+            "carros",
+            "comprar",
+            "compra",
+            "compre",
+            "da",
+            "das",
+            "de",
+            "desse",
+            "dessa",
+            "do",
+            "dos",
+            "esse",
+            "essa",
+            "este",
+            "esta",
+            "fazer",
+            "gostaria",
+            "modelo",
+            "o",
+            "os",
+            "pedido",
+            "pedir",
+            "por",
+            "pra",
+            "quero",
+            "um",
+            "uma",
+            "veiculo",
+            "veiculos",
+        }
+        tokens: list[str] = []
+        for token in raw_tokens:
+            if token in ignored_tokens or token.isdigit():
+                continue
+            if len(token) < 3:
+                continue
+            tokens.append(token)
+        return tokens
+
+    def _score_vehicle_reference_tokens(self, reference_tokens: list[str], model_tokens: list[str]) -> int:
+        score = 0
+        for reference_token in reference_tokens:
+            for model_token in model_tokens:
+                if reference_token == model_token:
+                    score += 1
+                    break
+                if len(reference_token) >= 4 and model_token.startswith(reference_token):
+                    score += 1
+                    break
+        return score
+
     def _load_vehicle_by_id(self, vehicle_id: int) -> dict | None:
         db = SessionMockLocal()
         try:
@@ -620,8 +745,7 @@ class OrderFlowMixin:
             return True
         if normalized_message == "1":
             return True
-        normalized_model = self._normalize_text(str(vehicle.get("modelo") or "")).strip()
-        if normalized_model and normalized_model in normalized_message:
+        if self._match_vehicle_from_message_model(message=message, stock_results=[vehicle]):
             return True
         return False
 
@@ -638,7 +762,7 @@ class OrderFlowMixin:
         if not force and not self._has_stock_listing_request(message, turn_decision=turn_decision):
             return None
 
-        arguments = self._build_stock_lookup_arguments(user_id=user_id, payload=payload)
+        arguments = self._build_stock_lookup_arguments(user_id=user_id, payload=payload, message=message)
         if "preco_max" not in arguments and "categoria" not in arguments:
             return None
 
@@ -1028,3 +1152,4 @@ class OrderFlowMixin:
         )
 
         return self._fallback_format_tool_result("cancelar_pedido", tool_result)
+

tests/test_conversation_adjustments.py

@@ -77,10 +77,12 @@ class FakeRegistry:
         if self.raise_http_exception is not None:
             raise self.raise_http_exception
         if tool_name == "consultar_estoque":
-            return [
+            stock_results = [
                 {"id": 1, "modelo": "Honda Civic 2021", "categoria": "sedan", "preco": 48500.0},
                 {"id": 2, "modelo": "Toyota Yaris 2020", "categoria": "hatch", "preco": 49900.0},
             ]
+            reverse = str(arguments.get("ordenar_preco") or "asc").lower() == "desc"
+            return sorted(stock_results, key=lambda item: float(item["preco"]), reverse=reverse)
         if tool_name == "listar_pedidos":
             return [
                 {
@@ -190,7 +192,7 @@ class OrderFlowHarness(OrderFlowMixin):
 
     def _is_negative_message(self, text: str) -> bool:
         normalized = self.normalizer.normalize_text(text).strip().rstrip(".!?,;:")
-        return normalized in {"nao", "não", "negativo", "cancelar", "outro", "outra opcao", "outra opção"}
+        return normalized in {"nao", "n\u00e3o", "negativo", "cancelar", "outro", "outra opcao", "outra op\u00e7\u00e3o"}
 
     def _normalize_positive_number(self, value):
         return self.normalizer.normalize_positive_number(value)
@@ -377,12 +379,12 @@ class ConversationAdjustmentsTests(unittest.TestCase):
         normalizer = EntityNormalizer()
 
         self.assertEqual(
-            normalizer.normalize_datetime_connector("10/03/2026 às 09:00"),
+            normalizer.normalize_datetime_connector("10/03/2026 \u00e0s 09:00"),
             "10/03/2026 09:00",
         )
 
     def test_parse_review_datetime_accepts_as_com_acento(self):
-        parsed = _parse_data_hora_revisao("10/03/2026 às 09:00")
+        parsed = _parse_data_hora_revisao("10/03/2026 \u00e0s 09:00")
 
         self.assertEqual(parsed, datetime(2026, 3, 10, 9, 0))
 
@@ -409,11 +411,11 @@ class ConversationAdjustmentsTests(unittest.TestCase):
         state = FakeState()
         policy = ConversationPolicy(service=FakeService(state))
 
-        message = "Esqueça as operações anteriores, agora quero agendar revisão para ABC1234"
+        message = "Esque\u00e7a as opera\u00e7\u00f5es anteriores, agora quero agendar revis\u00e3o para ABC1234"
         cleaned = policy.remove_order_selection_reset_prefix(message)
 
         self.assertTrue(policy.is_order_selection_reset_message(message))
-        self.assertEqual(cleaned, "quero agendar revisão para ABC1234")
+        self.assertEqual(cleaned, "quero agendar revis\u00e3o para ABC1234")
 
 
 class CancelOrderFlowTests(unittest.IsolatedAsyncioTestCase):
@@ -657,6 +659,72 @@ class CreateOrderFlowWithVehicleTests(unittest.IsolatedAsyncioTestCase):
         self.assertIn("Encontrei 2 veiculo(s):", response)
         self.assertIn("Honda Civic 2021", response)
 
+    async def test_order_flow_budget_search_prioritizes_matches_closest_to_ceiling(self):
+        state = FakeState(
+            contexts={
+                10: {
+                    "generic_memory": {"cpf": "12345678909", "orcamento_max": 50000},
+                    "last_stock_results": [],
+                    "selected_vehicle": None,
+                }
+            }
+        )
+        registry = FakeRegistry()
+        flow = OrderFlowHarness(state=state, registry=registry)
+
+        async def fake_hydrate_mock_customer_from_cpf(cpf: str, user_id: int | None = None):
+            return {"cpf": cpf, "user_id": user_id}
+
+        with patch(
+            "app.services.flows.order_flow.hydrate_mock_customer_from_cpf",
+            new=fake_hydrate_mock_customer_from_cpf,
+        ):
+            response = await flow._try_collect_and_create_order(
+                message="Quero comprar um carro de ate 50 mil, meu CPF e 12345678909",
+                user_id=10,
+                extracted_fields={"cpf": "12345678909"},
+                intents={},
+                turn_decision={"intent": "order_create", "domain": "sales", "action": "collect_order_create"},
+            )
+
+        self.assertEqual(registry.calls[0][1]["ordenar_preco"], "desc")
+        self.assertIn("1. Toyota Yaris 2020 (hatch) - R$ 49900.00", response)
+        self.assertIn("2. Honda Civic 2021 (sedan) - R$ 48500.00", response)
+        self.assertEqual(flow._get_last_stock_results(user_id=10)[0]["modelo"], "Toyota Yaris 2020")
+
+    async def test_order_flow_budget_search_keeps_cheapest_first_when_user_asks_for_cheapest(self):
+        state = FakeState(
+            contexts={
+                10: {
+                    "generic_memory": {"cpf": "12345678909", "orcamento_max": 50000},
+                    "last_stock_results": [],
+                    "selected_vehicle": None,
+                }
+            }
+        )
+        registry = FakeRegistry()
+        flow = OrderFlowHarness(state=state, registry=registry)
+
+        async def fake_hydrate_mock_customer_from_cpf(cpf: str, user_id: int | None = None):
+            return {"cpf": cpf, "user_id": user_id}
+
+        with patch(
+            "app.services.flows.order_flow.hydrate_mock_customer_from_cpf",
+            new=fake_hydrate_mock_customer_from_cpf,
+        ):
+            response = await flow._try_collect_and_create_order(
+                message="Quero comprar o carro mais barato ate 50 mil, meu CPF e 12345678909",
+                user_id=10,
+                extracted_fields={"cpf": "12345678909"},
+                intents={},
+                turn_decision={"intent": "order_create", "domain": "sales", "action": "collect_order_create"},
+            )
+
+        self.assertEqual(registry.calls[0][1]["ordenar_preco"], "asc")
+        self.assertIn("1. Honda Civic 2021 (sedan) - R$ 48500.00", response)
+        self.assertIn("2. Toyota Yaris 2020 (hatch) - R$ 49900.00", response)
+        self.assertEqual(flow._get_last_stock_results(user_id=10)[0]["modelo"], "Honda Civic 2021")
+
     async def test_order_flow_extracts_budget_from_message_when_llm_misses_it(self):
         state = FakeState(
             contexts={
@@ -1099,6 +1167,40 @@ class CreateOrderFlowWithVehicleTests(unittest.IsolatedAsyncioTestCase):
         self.assertEqual(arguments["cpf"], "12345678909")
         self.assertIn("Veiculo: Hyundai HB20S 2022", second_response)
 
+    async def test_order_flow_accepts_partial_model_reference_from_last_stock_results(self):
+        state = FakeState(
+            contexts={
+                10: {
+                    "active_domain": "sales",
+                    "generic_memory": {"orcamento_max": 70000},
+                    "shared_memory": {"orcamento_max": 70000},
+                    "last_stock_results": [
+                        {"id": 15, "modelo": "Volkswagen T-Cross 2024", "categoria": "hatch", "preco": 59306.0},
+                        {"id": 16, "modelo": "Volkswagen T-Cross 2024", "categoria": "hatch", "preco": 59306.0},
+                        {"id": 2, "modelo": "Toyota Corolla 2020", "categoria": "hatch", "preco": 58476.0},
+                    ],
+                    "selected_vehicle": None,
+                }
+            }
+        )
+        registry = FakeRegistry()
+        flow = OrderFlowHarness(state=state, registry=registry)
+
+        response = await flow._try_collect_and_create_order(
+            message="gostaria de fazer o pedido do Volkswagen T-Cros",
+            user_id=10,
+            extracted_fields={},
+            intents={"order_create": True},
+        )
+
+        draft = state.get_entry("pending_order_drafts", 10)
+        self.assertIsNotNone(draft)
+        self.assertEqual(draft["payload"]["vehicle_id"], 15)
+        self.assertEqual(draft["payload"]["modelo_veiculo"], "Volkswagen T-Cross 2024")
+        self.assertEqual(state.get_user_context(10)["selected_vehicle"]["id"], 15)
+        self.assertIn("cpf do cliente", response.lower())
+        self.assertEqual(registry.calls, [])
+
     async def test_order_flow_bootstraps_selection_from_last_stock_results_without_repeating_order_verb(self):
         state = FakeState(
             contexts={
@@ -2625,3 +2727,4 @@ class ToolRegistryExecutionTests(unittest.IsolatedAsyncioTestCase):
 
 if __name__ == "__main__":
     unittest.main()
+