InvokeAI/invokeai/app/services/images/images_base.py
psychedelicious 5928ade5fd feat(app): simplified create image API
Graph, metadata and workflow all take stringified JSON only. This makes the API consistent and means we don't need to do a round-trip of pydantic parsing when handling this data.

It also prevents a failure mode where an uploaded image's metadata, workflow or graph are old and don't match the current schema.

As before, the frontend does strict validation and parsing when loading these values.
2024-05-18 09:04:37 +10:00

146 lines
4.2 KiB
Python

from abc import ABC, abstractmethod
from typing import Callable, Optional
from PIL.Image import Image as PILImageType
from invokeai.app.invocations.fields import MetadataField
from invokeai.app.services.image_records.image_records_common import (
ImageCategory,
ImageRecord,
ImageRecordChanges,
ResourceOrigin,
)
from invokeai.app.services.images.images_common import ImageDTO
from invokeai.app.services.shared.pagination import OffsetPaginatedResults
class ImageServiceABC(ABC):
"""High-level service for image management."""
_on_changed_callbacks: list[Callable[[ImageDTO], None]]
_on_deleted_callbacks: list[Callable[[str], None]]
def __init__(self) -> None:
self._on_changed_callbacks = []
self._on_deleted_callbacks = []
def on_changed(self, on_changed: Callable[[ImageDTO], None]) -> None:
"""Register a callback for when an image is changed"""
self._on_changed_callbacks.append(on_changed)
def on_deleted(self, on_deleted: Callable[[str], None]) -> None:
"""Register a callback for when an image is deleted"""
self._on_deleted_callbacks.append(on_deleted)
def _on_changed(self, item: ImageDTO) -> None:
for callback in self._on_changed_callbacks:
callback(item)
def _on_deleted(self, item_id: str) -> None:
for callback in self._on_deleted_callbacks:
callback(item_id)
@abstractmethod
def create(
self,
image: PILImageType,
image_origin: ResourceOrigin,
image_category: ImageCategory,
node_id: Optional[str] = None,
session_id: Optional[str] = None,
board_id: Optional[str] = None,
is_intermediate: Optional[bool] = False,
metadata: Optional[str] = None,
workflow: Optional[str] = None,
graph: Optional[str] = None,
) -> ImageDTO:
"""Creates an image, storing the file and its metadata."""
pass
@abstractmethod
def update(
self,
image_name: str,
changes: ImageRecordChanges,
) -> ImageDTO:
"""Updates an image."""
pass
@abstractmethod
def get_pil_image(self, image_name: str) -> PILImageType:
"""Gets an image as a PIL image."""
pass
@abstractmethod
def get_record(self, image_name: str) -> ImageRecord:
"""Gets an image record."""
pass
@abstractmethod
def get_dto(self, image_name: str) -> ImageDTO:
"""Gets an image DTO."""
pass
@abstractmethod
def get_metadata(self, image_name: str) -> Optional[MetadataField]:
"""Gets an image's metadata."""
pass
@abstractmethod
def get_workflow(self, image_name: str) -> Optional[str]:
"""Gets an image's workflow."""
pass
@abstractmethod
def get_graph(self, image_name: str) -> Optional[str]:
"""Gets an image's workflow."""
pass
@abstractmethod
def get_path(self, image_name: str, thumbnail: bool = False) -> str:
"""Gets an image's path."""
pass
@abstractmethod
def validate_path(self, path: str) -> bool:
"""Validates an image's path."""
pass
@abstractmethod
def get_url(self, image_name: str, thumbnail: bool = False) -> str:
"""Gets an image's or thumbnail's URL."""
pass
@abstractmethod
def get_many(
self,
offset: int = 0,
limit: int = 10,
image_origin: Optional[ResourceOrigin] = None,
categories: Optional[list[ImageCategory]] = None,
is_intermediate: Optional[bool] = None,
board_id: Optional[str] = None,
) -> OffsetPaginatedResults[ImageDTO]:
"""Gets a paginated list of image DTOs."""
pass
@abstractmethod
def delete(self, image_name: str):
"""Deletes an image."""
pass
@abstractmethod
def delete_intermediates(self) -> int:
"""Deletes all intermediate images."""
pass
@abstractmethod
def get_intermediates_count(self) -> int:
"""Gets the number of intermediate images."""
pass
@abstractmethod
def delete_images_on_board(self, board_id: str):
"""Deletes all images on a board."""
pass