feat(preview): respect blur mature content setting

tests/services/test_download_manager.py

@@ -699,3 +699,116 @@ async def test_execute_download_uses_rewritten_civitai_preview(monkeypatch, tmp_
     stored_preview = manager._active_downloads["dl"]["preview_path"]
     assert stored_preview.endswith(".jpeg")
     assert Path(stored_preview).exists()
+
+
+@pytest.mark.asyncio
+async def test_execute_download_respects_blur_setting(monkeypatch, tmp_path):
+    manager = DownloadManager()
+    save_dir = tmp_path / "downloads"
+    save_dir.mkdir()
+    target_path = save_dir / "file.safetensors"
+
+    manager._active_downloads["dl"] = {}
+
+    class DummyMetadata:
+        def __init__(self, path: Path):
+            self.file_path = str(path)
+            self.sha256 = "sha256"
+            self.file_name = path.stem
+            self.preview_url = None
+            self.preview_nsfw_level = None
+
+        def generate_unique_filename(self, *_args, **_kwargs):
+            return os.path.basename(self.file_path)
+
+        def update_file_info(self, _path):
+            return None
+
+        def to_dict(self):
+            return {"file_path": self.file_path}
+
+    metadata = DummyMetadata(target_path)
+    version_info = {
+        "images": [
+            {
+                "url": "https://image.civitai.com/container/example/original=true/nsfw.jpeg",
+                "type": "image",
+                "nsfwLevel": 8,
+            },
+            {
+                "url": "https://image.civitai.com/container/example/original=true/safe.jpeg",
+                "type": "image",
+                "nsfwLevel": 1,
+            },
+        ],
+        "files": [
+            {
+                "type": "Model",
+                "primary": True,
+                "downloadUrl": "https://example.invalid/file.safetensors",
+                "name": "file.safetensors",
+            }
+        ],
+    }
+    download_urls = ["https://example.invalid/file.safetensors"]
+
+    class DummyDownloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+
+        async def download_file(self, url, path, progress_callback=None, use_auth=None):
+            self.file_calls.append((url, path))
+            if url.endswith(".safetensors"):
+                Path(path).write_bytes(b"model")
+                return True, None
+            if "safe.jpeg" in url:
+                Path(path).write_bytes(b"preview")
+                return True, None
+            return False, "unexpected url"
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            return False, b"", {}
+
+    dummy_downloader = DummyDownloader()
+
+    class StubSettingsManager:
+        def __init__(self, blur: bool) -> None:
+            self.blur = blur
+
+        def get(self, key: str, default=None):
+            if key == "blur_mature_content":
+                return self.blur
+            return default
+
+    monkeypatch.setattr(
+        download_manager,
+        "get_settings_manager",
+        lambda: StubSettingsManager(True),
+    )
+
+    monkeypatch.setattr(download_manager, "get_downloader", AsyncMock(return_value=dummy_downloader))
+    monkeypatch.setattr(download_manager.ExifUtils, "optimize_image", staticmethod(lambda **_kwargs: (b"", {})))
+    monkeypatch.setattr(MetadataManager, "save_metadata", AsyncMock(return_value=True))
+
+    dummy_scanner = SimpleNamespace(add_model_to_cache=AsyncMock(return_value=None))
+    monkeypatch.setattr(DownloadManager, "_get_lora_scanner", AsyncMock(return_value=dummy_scanner))
+
+    result = await manager._execute_download(
+        download_urls=download_urls,
+        save_dir=str(save_dir),
+        metadata=metadata,
+        version_info=version_info,
+        relative_path="",
+        progress_callback=None,
+        model_type="lora",
+        download_id="dl",
+    )
+
+    assert result == {"success": True}
+    preview_urls = [url for url, _ in dummy_downloader.file_calls if url.endswith(".jpeg")]
+    assert preview_urls
+    assert all("nsfw.jpeg" not in url for url in preview_urls)
+    assert any("safe.jpeg" in url for url in preview_urls)
+    assert metadata.preview_nsfw_level == 1
+    stored_preview = manager._active_downloads["dl"].get("preview_path")
+    assert stored_preview and stored_preview.endswith(".jpeg")

tests/services/test_preview_asset_service.py

@@ -3,6 +3,7 @@ from typing import Any
 
 import pytest
 
+from py.services import preview_asset_service
 from py.services.preview_asset_service import PreviewAssetService
 
 
@@ -180,3 +181,68 @@ async def test_ensure_preview_rewrites_civitai_video(tmp_path):
     assert preview_path.exists()
     assert preview_path.suffix == ".mp4"
     assert local_metadata["preview_nsfw_level"] == 2
+
+
+@pytest.mark.asyncio
+async def test_ensure_preview_respects_blur_setting(monkeypatch, tmp_path):
+    metadata_path = tmp_path / "model.metadata.json"
+    metadata_path.write_text("{}")
+    local_metadata: dict[str, Any] = {}
+
+    class Downloader:
+        def __init__(self):
+            self.file_calls: list[tuple[str, str]] = []
+
+        async def download_file(self, url, path, use_auth=False):
+            self.file_calls.append((url, path))
+            Path(path).write_bytes(b"image-data")
+            return True, None
+
+        async def download_to_memory(self, *_args, **_kwargs):
+            pytest.fail("download_to_memory should not be used when download_file succeeds")
+
+    downloader = Downloader()
+
+    async def downloader_factory():
+        return downloader
+
+    class StubSettingsManager:
+        def __init__(self, blur: bool) -> None:
+            self.blur = blur
+
+        def get(self, key: str, default=None):
+            if key == "blur_mature_content":
+                return self.blur
+            return default
+
+    monkeypatch.setattr(
+        preview_asset_service,
+        "get_settings_manager",
+        lambda: StubSettingsManager(True),
+    )
+
+    service = PreviewAssetService(
+        metadata_manager=StubMetadataManager(),
+        downloader_factory=downloader_factory,
+        exif_utils=RecordingExifUtils(),
+    )
+
+    images = [
+        {
+            "url": "https://image.civitai.com/container/example/original=true/nsfw.jpeg",
+            "type": "image",
+            "nsfwLevel": 8,
+        },
+        {
+            "url": "https://image.civitai.com/container/example/original=true/safe.jpeg",
+            "type": "image",
+            "nsfwLevel": 1,
+        },
+    ]
+
+    await service.ensure_preview_for_metadata(str(metadata_path), local_metadata, images)
+
+    assert len(downloader.file_calls) == 1
+    requested_url = downloader.file_calls[0][0]
+    assert "safe.jpeg" in requested_url
+    assert local_metadata["preview_nsfw_level"] == 1

tests/utils/test_preview_selection.py

@@ -0,0 +1,39 @@
+from py.utils.preview_selection import select_preview_media
+
+
+def test_select_preview_prefers_safe_media_when_blurred():
+    images = [
+        {"url": "nsfw", "type": "image", "nsfwLevel": 8},
+        {"url": "mid", "type": "image", "nsfwLevel": 4},
+        {"url": "safe", "type": "image", "nsfwLevel": 1},
+    ]
+
+    selected, level = select_preview_media(images, blur_mature_content=True)
+
+    assert selected["url"] == "safe"
+    assert level == 1
+
+
+def test_select_preview_returns_lowest_when_no_safe_media():
+    images = [
+        {"url": "x", "type": "image", "nsfwLevel": 16},
+        {"url": "r", "type": "image", "nsfwLevel": 4},
+        {"url": "xx", "type": "image", "nsfwLevel": 8},
+    ]
+
+    selected, level = select_preview_media(images, blur_mature_content=True)
+
+    assert selected["url"] == "r"
+    assert level == 4
+
+
+def test_select_preview_returns_first_when_blur_disabled():
+    images = [
+        {"url": "nsfw", "type": "image", "nsfwLevel": 32},
+        {"url": "safe", "type": "image", "nsfwLevel": 1},
+    ]
+
+    selected, level = select_preview_media(images, blur_mature_content=False)
+
+    assert selected["url"] == "nsfw"
+    assert level == 32