From 4bcdb4823beb1d73462ecb4a37696916213b83ae Mon Sep 17 00:00:00 2001
From: Daniel Roth <daniel_roth@hotmail.co.uk>
Date: Thu, 16 Apr 2026 14:24:11 +0000
Subject: [PATCH] =?UTF-8?q?Load=20Ventilation=20from=20SiteNotes=20JSON=20?=
 =?UTF-8?q?=F0=9F=9F=A5?=
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---
 backend/documents_parser/extractor.py         |  4 +++
 .../documents_parser/tests/test_extractor.py  | 34 +++++++++++++++++++
 2 files changed, 38 insertions(+)

diff --git a/backend/documents_parser/extractor.py b/backend/documents_parser/extractor.py
index 1e5531d4..41111a9b 100644
--- a/backend/documents_parser/extractor.py
+++ b/backend/documents_parser/extractor.py
@@ -18,6 +18,7 @@ from datatypes.epc.surveys.pashub_rdsap_site_notes import (
     RoofSpace,
     RoofSpaceDetail,
     SecondaryHeating,
+    Ventilation,
     WaterHeating,
     Window,
 )
@@ -294,6 +295,9 @@ class PasHubRdSapSiteNotesExtractor:
             water_heating=self._parse_water_heating(hhw_section),
         )
 
+    def extract_ventilation(self) -> Ventilation:
+        raise NotImplementedError
+
     def _parse_main_heating(self, data: List[str]) -> MainHeating:
         return MainHeating(
             selection_method=self._get_in(data, "How would you like to select the Heating System?") or "",
diff --git a/backend/documents_parser/tests/test_extractor.py b/backend/documents_parser/tests/test_extractor.py
index 2076b500..cf8f94d0 100644
--- a/backend/documents_parser/tests/test_extractor.py
+++ b/backend/documents_parser/tests/test_extractor.py
@@ -21,6 +21,7 @@ from datatypes.epc.surveys.pashub_rdsap_site_notes import (
     RoofSpace,
     RoofSpaceDetail,
     SecondaryHeating,
+    Ventilation,
     WaterHeating,
 )
 
@@ -408,3 +409,36 @@ class TestHeatingAndHotWater:
                 has_thermostat=None,
             ),
         )
+
+
+class TestVentilation:
+    @pytest.fixture
+    def ventilation(self) -> Ventilation:
+        return PasHubRdSapSiteNotesExtractor(
+            load_text_fixture()
+        ).extract_ventilation()
+
+    def test_ventilation_type(self, ventilation: Ventilation) -> None:
+        assert ventilation.ventilation_type == "Mechanical Extract - Decentralised"
+
+    def test_number_of_open_flues(self, ventilation: Ventilation) -> None:
+        assert ventilation.number_of_open_flues == 0
+
+    def test_ventilation_in_pcdf_database(self, ventilation: Ventilation) -> None:
+        assert ventilation.ventilation_in_pcdf_database is False
+
+    def test_full_ventilation(self, ventilation: Ventilation) -> None:
+        assert ventilation == Ventilation(
+            ventilation_type="Mechanical Extract - Decentralised",
+            has_fixed_air_conditioning=False,
+            number_of_open_flues=0,
+            number_of_closed_flues=0,
+            number_of_boiler_flues=0,
+            number_of_other_flues=0,
+            number_of_extract_fans=0,
+            number_of_passive_vents=0,
+            number_of_flueless_gas_fires=0,
+            pressure_test="No test",
+            draught_lobby=False,
+            ventilation_in_pcdf_database=False,
+        )