seed default presets and handle them in UI

invokeai/app/services/style_preset_records/default_style_presets.json

@@ -0,0 +1,16 @@
+[
+  {
+    "name": "Concept Art (Painterly)",
+    "preset_data": {
+      "positive_prompt": "{prompt} (digital painting)++, (textured 2d media)+++, depth and (painterly artwork)+++, intricate linework and brushwork, brush collection, highlights and shading, detail",
+      "negative_prompt": "photo++++ negative, faded, distorted, sketch, , flat+. anime, smooth+++"
+    }
+  },
+  {
+    "name": "Photography (Black and White)",
+    "preset_data": {
+      "positive_prompt": "(minimalist black and white photo)+++, (strong contrast)++, (clean textures)++, natural light, sharp focus, high detail, stark, dramatic, serene, simple composition, atmospheric, moody, refined, shadow play, 50mm lens, f/4",
+      "negative_prompt": "negative, blurry, faded, distorted, sketch, flat+. anime"
+    }
+  }
+]

invokeai/app/services/style_preset_records/style_preset_records_common.py

@@ -23,11 +23,11 @@ class StylePresetChanges(BaseModel, extra="forbid"):
 class StylePresetWithoutId(BaseModel):
     name: str = Field(description="The name of the style preset.")
     preset_data: PresetData = Field(description="The preset data")
+    is_default: Optional[bool] = Field(description="Whether or not the style preset is default", default=False)
 
 
 class StylePresetRecordDTO(StylePresetWithoutId):
     id: str = Field(description="The style preset ID.")
-    is_default: bool = Field(description="Whether or not the style preset is default")
 
     @classmethod
     def from_dict(cls, data: dict[str, Any]) -> "StylePresetRecordDTO":

invokeai/app/services/style_preset_records/style_preset_records_sqlite.py

@@ -1,3 +1,5 @@
+import json
+from pathlib import Path
 from invokeai.app.services.invoker import Invoker
 from invokeai.app.services.shared.sqlite.sqlite_database import SqliteDatabase
 from invokeai.app.services.style_preset_records.style_preset_records_base import StylePresetRecordsStorageBase
@@ -19,6 +21,7 @@ class SqliteStylePresetRecordsStorage(StylePresetRecordsStorageBase):
 
     def start(self, invoker: Invoker) -> None:
         self._invoker = invoker
+        self._sync_default_style_presets()
 
     def get(self, id: str) -> StylePresetRecordDTO:
         """Gets a style preset by ID."""
@@ -51,15 +54,12 @@ class SqliteStylePresetRecordsStorage(StylePresetRecordsStorageBase):
                 INSERT OR IGNORE INTO style_presets (
                     id,
                     name,
-                    preset_data
+                    preset_data,
+                    is_default
                 )
-                VALUES (?, ?, ?);
+                VALUES (?, ?, ?, ?);
                 """,
-                (
-                    id,
-                    style_preset.name,
-                    style_preset.preset_data.model_dump_json(),
-                ),
+                (id, style_preset.name, style_preset.preset_data.model_dump_json(), style_preset.is_default),
             )
             self._conn.commit()
         except Exception:
@@ -142,3 +142,30 @@ class SqliteStylePresetRecordsStorage(StylePresetRecordsStorageBase):
             raise
         finally:
             self._lock.release()
+
+    def _sync_default_style_presets(self) -> None:
+        """Syncs default style presets to the database. Internal use only."""
+
+        try:
+            self._lock.acquire()
+            self._cursor.execute(
+                """--sql
+                DELETE FROM style_presets
+                WHERE is_default = True;
+                """
+            )
+            try:
+                with open(Path(__file__).parent / Path("default_style_presets.json"), "r") as file:
+                    presets: list[StylePresetWithoutId] = json.load(file)
+                    for preset in presets:
+                        style_preset = StylePresetWithoutId(is_default=True, **preset)
+                        self.create(style_preset)
+            except Exception as e:
+                raise Exception()
+
+            self._conn.commit()
+        except Exception:
+            self._conn.rollback()
+            raise
+        finally:
+            self._lock.release()

invokeai/frontend/web/src/features/stylePresets/components/StylePresetListItem.tsx

@@ -110,6 +110,7 @@ export const StylePresetListItem = ({ preset }: { preset: StylePresetRecordWithI
               )}
             </Flex>
 
+            {!preset.is_default && (
               <Flex alignItems="center" gap="1">
                 <IconButton
                   size="sm"
@@ -127,6 +128,7 @@ export const StylePresetListItem = ({ preset }: { preset: StylePresetRecordWithI
                   icon={<PiTrashBold />}
                 />
               </Flex>
+            )}
           </Flex>
 
           <Flex flexDir="column" gap="1">