mirror of
https://github.com/invoke-ai/InvokeAI
synced 2024-08-30 20:32:17 +00:00
275 lines
10 KiB
Python
275 lines
10 KiB
Python
import csv
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import io
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import json
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import traceback
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from typing import Optional
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import pydantic
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from fastapi import APIRouter, File, Form, HTTPException, Path, Response, UploadFile
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from fastapi.responses import FileResponse
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from PIL import Image
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from pydantic import BaseModel, Field
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from invokeai.app.api.dependencies import ApiDependencies
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from invokeai.app.api.routers.model_manager import IMAGE_MAX_AGE
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from invokeai.app.services.style_preset_images.style_preset_images_common import StylePresetImageFileNotFoundException
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from invokeai.app.services.style_preset_records.style_preset_records_common import (
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InvalidPresetImportDataError,
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PresetData,
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PresetType,
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StylePresetChanges,
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StylePresetNotFoundError,
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StylePresetRecordWithImage,
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StylePresetWithoutId,
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UnsupportedFileTypeError,
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parse_presets_from_file,
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)
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class StylePresetFormData(BaseModel):
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name: str = Field(description="Preset name")
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positive_prompt: str = Field(description="Positive prompt")
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negative_prompt: str = Field(description="Negative prompt")
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type: PresetType = Field(description="Preset type")
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style_presets_router = APIRouter(prefix="/v1/style_presets", tags=["style_presets"])
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@style_presets_router.get(
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"/i/{style_preset_id}",
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operation_id="get_style_preset",
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responses={
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200: {"model": StylePresetRecordWithImage},
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},
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)
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async def get_style_preset(
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style_preset_id: str = Path(description="The style preset to get"),
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) -> StylePresetRecordWithImage:
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"""Gets a style preset"""
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try:
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image = ApiDependencies.invoker.services.style_preset_image_files.get_url(style_preset_id)
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style_preset = ApiDependencies.invoker.services.style_preset_records.get(style_preset_id)
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return StylePresetRecordWithImage(image=image, **style_preset.model_dump())
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except StylePresetNotFoundError:
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raise HTTPException(status_code=404, detail="Style preset not found")
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@style_presets_router.patch(
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"/i/{style_preset_id}",
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operation_id="update_style_preset",
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responses={
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200: {"model": StylePresetRecordWithImage},
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},
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)
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async def update_style_preset(
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image: Optional[UploadFile] = File(description="The image file to upload", default=None),
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style_preset_id: str = Path(description="The id of the style preset to update"),
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data: str = Form(description="The data of the style preset to update"),
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) -> StylePresetRecordWithImage:
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"""Updates a style preset"""
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if image is not None:
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if not image.content_type or not image.content_type.startswith("image"):
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raise HTTPException(status_code=415, detail="Not an image")
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contents = await image.read()
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try:
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pil_image = Image.open(io.BytesIO(contents))
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except Exception:
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ApiDependencies.invoker.services.logger.error(traceback.format_exc())
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raise HTTPException(status_code=415, detail="Failed to read image")
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try:
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ApiDependencies.invoker.services.style_preset_image_files.save(style_preset_id, pil_image)
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except ValueError as e:
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raise HTTPException(status_code=409, detail=str(e))
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else:
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try:
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ApiDependencies.invoker.services.style_preset_image_files.delete(style_preset_id)
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except StylePresetImageFileNotFoundException:
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pass
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try:
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parsed_data = json.loads(data)
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validated_data = StylePresetFormData(**parsed_data)
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name = validated_data.name
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type = validated_data.type
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positive_prompt = validated_data.positive_prompt
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negative_prompt = validated_data.negative_prompt
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except pydantic.ValidationError:
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raise HTTPException(status_code=400, detail="Invalid preset data")
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preset_data = PresetData(positive_prompt=positive_prompt, negative_prompt=negative_prompt)
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changes = StylePresetChanges(name=name, preset_data=preset_data, type=type)
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style_preset_image = ApiDependencies.invoker.services.style_preset_image_files.get_url(style_preset_id)
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style_preset = ApiDependencies.invoker.services.style_preset_records.update(
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style_preset_id=style_preset_id, changes=changes
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)
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return StylePresetRecordWithImage(image=style_preset_image, **style_preset.model_dump())
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@style_presets_router.delete(
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"/i/{style_preset_id}",
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operation_id="delete_style_preset",
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)
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async def delete_style_preset(
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style_preset_id: str = Path(description="The style preset to delete"),
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) -> None:
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"""Deletes a style preset"""
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try:
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ApiDependencies.invoker.services.style_preset_image_files.delete(style_preset_id)
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except StylePresetImageFileNotFoundException:
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pass
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ApiDependencies.invoker.services.style_preset_records.delete(style_preset_id)
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@style_presets_router.post(
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"/",
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operation_id="create_style_preset",
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responses={
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200: {"model": StylePresetRecordWithImage},
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},
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)
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async def create_style_preset(
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image: Optional[UploadFile] = File(description="The image file to upload", default=None),
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data: str = Form(description="The data of the style preset to create"),
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) -> StylePresetRecordWithImage:
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"""Creates a style preset"""
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try:
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parsed_data = json.loads(data)
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validated_data = StylePresetFormData(**parsed_data)
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name = validated_data.name
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type = validated_data.type
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positive_prompt = validated_data.positive_prompt
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negative_prompt = validated_data.negative_prompt
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except pydantic.ValidationError:
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raise HTTPException(status_code=400, detail="Invalid preset data")
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preset_data = PresetData(positive_prompt=positive_prompt, negative_prompt=negative_prompt)
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style_preset = StylePresetWithoutId(name=name, preset_data=preset_data, type=type)
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new_style_preset = ApiDependencies.invoker.services.style_preset_records.create(style_preset=style_preset)
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if image is not None:
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if not image.content_type or not image.content_type.startswith("image"):
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raise HTTPException(status_code=415, detail="Not an image")
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contents = await image.read()
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try:
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pil_image = Image.open(io.BytesIO(contents))
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except Exception:
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ApiDependencies.invoker.services.logger.error(traceback.format_exc())
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raise HTTPException(status_code=415, detail="Failed to read image")
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try:
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ApiDependencies.invoker.services.style_preset_image_files.save(new_style_preset.id, pil_image)
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except ValueError as e:
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raise HTTPException(status_code=409, detail=str(e))
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preset_image = ApiDependencies.invoker.services.style_preset_image_files.get_url(new_style_preset.id)
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return StylePresetRecordWithImage(image=preset_image, **new_style_preset.model_dump())
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@style_presets_router.get(
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"/",
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operation_id="list_style_presets",
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responses={
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200: {"model": list[StylePresetRecordWithImage]},
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},
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)
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async def list_style_presets() -> list[StylePresetRecordWithImage]:
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"""Gets a page of style presets"""
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style_presets_with_image: list[StylePresetRecordWithImage] = []
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style_presets = ApiDependencies.invoker.services.style_preset_records.get_many()
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for preset in style_presets:
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image = ApiDependencies.invoker.services.style_preset_image_files.get_url(preset.id)
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style_preset_with_image = StylePresetRecordWithImage(image=image, **preset.model_dump())
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style_presets_with_image.append(style_preset_with_image)
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return style_presets_with_image
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@style_presets_router.get(
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"/i/{style_preset_id}/image",
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operation_id="get_style_preset_image",
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responses={
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200: {
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"description": "The style preset image was fetched successfully",
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},
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400: {"description": "Bad request"},
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404: {"description": "The style preset image could not be found"},
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},
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status_code=200,
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)
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async def get_style_preset_image(
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style_preset_id: str = Path(description="The id of the style preset image to get"),
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) -> FileResponse:
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"""Gets an image file that previews the model"""
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try:
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path = ApiDependencies.invoker.services.style_preset_image_files.get_path(style_preset_id)
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response = FileResponse(
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path,
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media_type="image/png",
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filename=style_preset_id + ".png",
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content_disposition_type="inline",
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)
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response.headers["Cache-Control"] = f"max-age={IMAGE_MAX_AGE}"
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return response
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except Exception:
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raise HTTPException(status_code=404)
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@style_presets_router.get(
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"/export",
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operation_id="export_style_presets",
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responses={200: {"content": {"text/csv": {}}, "description": "A CSV file with the requested data."}},
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status_code=200,
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)
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async def export_style_presets():
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# Create an in-memory stream to store the CSV data
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output = io.StringIO()
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writer = csv.writer(output)
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# Write the header
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writer.writerow(["name", "prompt", "negative_prompt"])
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style_presets = ApiDependencies.invoker.services.style_preset_records.get_many(type=PresetType.User)
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for preset in style_presets:
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writer.writerow([preset.name, preset.preset_data.positive_prompt, preset.preset_data.negative_prompt])
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csv_data = output.getvalue()
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output.close()
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return Response(
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content=csv_data,
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media_type="text/csv",
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headers={"Content-Disposition": "attachment; filename=prompt_templates.csv"},
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)
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@style_presets_router.post(
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"/import",
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operation_id="import_style_presets",
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)
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async def import_style_presets(file: UploadFile = File(description="The file to import")):
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try:
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style_presets = await parse_presets_from_file(file)
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ApiDependencies.invoker.services.style_preset_records.create_many(style_presets)
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except InvalidPresetImportDataError as e:
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ApiDependencies.invoker.services.logger.error(traceback.format_exc())
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raise HTTPException(status_code=400, detail=str(e))
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except UnsupportedFileTypeError as e:
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ApiDependencies.invoker.services.logger.error(traceback.format_exc())
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raise HTTPException(status_code=415, detail=str(e))
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