Instead of embed or text mode, optionally send a full-page screenshot of the entry URL as a Discord file upload

tests/test_settings.py

@@ -61,3 +61,83 @@ def test_get_webhook_for_entry() -> None:
 
         # Close the reader, so we can delete the directory.
         reader.close()
+
+
+def test_get_reader_sets_default_global_screenshot_layout() -> None:
+    """get_reader should initialize global screenshot layout to desktop when missing."""
+    get_reader.cache_clear()
+
+    with tempfile.TemporaryDirectory() as temp_dir:
+        Path.mkdir(Path(temp_dir), exist_ok=True)
+
+        custom_loc: pathlib.Path = pathlib.Path(temp_dir, "screenshot_default_db.sqlite")
+        reader: Reader = get_reader(custom_location=custom_loc)
+
+        screenshot_layout = reader.get_tag((), "screenshot_layout", None)
+        assert screenshot_layout == "desktop", (
+            f"Expected default global screenshot layout to be 'desktop', got: {screenshot_layout}"
+        )
+
+        reader.close()
+        get_reader.cache_clear()
+
+
+def test_get_reader_preserves_existing_global_screenshot_layout() -> None:
+    """get_reader should not overwrite an existing global screenshot layout value."""
+    get_reader.cache_clear()
+
+    with tempfile.TemporaryDirectory() as temp_dir:
+        Path.mkdir(Path(temp_dir), exist_ok=True)
+
+        custom_loc: pathlib.Path = pathlib.Path(temp_dir, "screenshot_existing_db.sqlite")
+        first_reader: Reader = get_reader(custom_location=custom_loc)
+        first_reader.set_tag((), "screenshot_layout", "mobile")  # pyright: ignore[reportArgumentType]
+        first_reader.close()
+        get_reader.cache_clear()
+
+        second_reader: Reader = get_reader(custom_location=custom_loc)
+        screenshot_layout = second_reader.get_tag((), "screenshot_layout", None)
+        assert screenshot_layout == "mobile", (
+            f"Expected existing global screenshot layout to stay 'mobile', got: {screenshot_layout}"
+        )
+
+        second_reader.close()
+        get_reader.cache_clear()
+
+
+def test_get_reader_sets_default_global_delivery_mode() -> None:
+    """get_reader should initialize global delivery mode to embed when missing."""
+    get_reader.cache_clear()
+
+    with tempfile.TemporaryDirectory() as temp_dir:
+        Path.mkdir(Path(temp_dir), exist_ok=True)
+
+        custom_loc: pathlib.Path = pathlib.Path(temp_dir, "delivery_mode_default_db.sqlite")
+        reader: Reader = get_reader(custom_location=custom_loc)
+
+        delivery_mode = reader.get_tag((), "delivery_mode", None)
+        assert delivery_mode == "embed", f"Expected default global delivery mode to be 'embed', got: {delivery_mode}"
+
+        reader.close()
+        get_reader.cache_clear()
+
+
+def test_get_reader_preserves_existing_global_delivery_mode() -> None:
+    """get_reader should not overwrite an existing global delivery mode value."""
+    get_reader.cache_clear()
+
+    with tempfile.TemporaryDirectory() as temp_dir:
+        Path.mkdir(Path(temp_dir), exist_ok=True)
+
+        custom_loc: pathlib.Path = pathlib.Path(temp_dir, "delivery_mode_existing_db.sqlite")
+        first_reader: Reader = get_reader(custom_location=custom_loc)
+        first_reader.set_tag((), "delivery_mode", "text")  # pyright: ignore[reportArgumentType]
+        first_reader.close()
+        get_reader.cache_clear()
+
+        second_reader: Reader = get_reader(custom_location=custom_loc)
+        delivery_mode = second_reader.get_tag((), "delivery_mode", None)
+        assert delivery_mode == "text", f"Expected existing global delivery mode to stay 'text', got: {delivery_mode}"
+
+        second_reader.close()
+        get_reader.cache_clear()