image_generation

@define
class BaseImageGenerationDriver(SerializableMixin, ExponentialBackoffMixin, ABC):
    model: str = field(kw_only=True, metadata={"serializable": True})

    def before_run(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> None:
        EventBus.publish_event(StartImageGenerationEvent(prompts=prompts, negative_prompts=negative_prompts))

    def after_run(self) -> None:
        EventBus.publish_event(FinishImageGenerationEvent())

    def run_text_to_image(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> ImageArtifact:
        for attempt in self.retrying():
            with attempt:
                self.before_run(prompts, negative_prompts)
                result = self.try_text_to_image(prompts, negative_prompts)
                self.after_run()

                return result

        raise Exception("Failed to run text to image generation")

    def run_image_variation(
        self,
        prompts: list[str],
        image: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact:
        for attempt in self.retrying():
            with attempt:
                self.before_run(prompts, negative_prompts)
                result = self.try_image_variation(prompts, image, negative_prompts)
                self.after_run()

                return result

        raise Exception("Failed to generate image variations")

    def run_image_inpainting(
        self,
        prompts: list[str],
        image: ImageArtifact,
        mask: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact:
        for attempt in self.retrying():
            with attempt:
                self.before_run(prompts, negative_prompts)
                result = self.try_image_inpainting(prompts, image, mask, negative_prompts)
                self.after_run()

                return result

        raise Exception("Failed to run image inpainting")

    def run_image_outpainting(
        self,
        prompts: list[str],
        image: ImageArtifact,
        mask: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact:
        for attempt in self.retrying():
            with attempt:
                self.before_run(prompts, negative_prompts)
                result = self.try_image_outpainting(prompts, image, mask, negative_prompts)
                self.after_run()

                return result

        raise Exception("Failed to run image outpainting")

    @abstractmethod
    def try_text_to_image(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> ImageArtifact: ...

    @abstractmethod
    def try_image_variation(
        self,
        prompts: list[str],
        image: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact: ...

    @abstractmethod
    def try_image_inpainting(
        self,
        prompts: list[str],
        image: ImageArtifact,
        mask: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact: ...

    @abstractmethod
    def try_image_outpainting(
        self,
        prompts: list[str],
        image: ImageArtifact,
        mask: ImageArtifact,
        negative_prompts: Optional[list[str]] = None,
    ) -> ImageArtifact: ...

def after_run(self) -> None:
    EventBus.publish_event(FinishImageGenerationEvent())

def before_run(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> None:
    EventBus.publish_event(StartImageGenerationEvent(prompts=prompts, negative_prompts=negative_prompts))

def run_image_inpainting(
    self,
    prompts: list[str],
    image: ImageArtifact,
    mask: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact:
    for attempt in self.retrying():
        with attempt:
            self.before_run(prompts, negative_prompts)
            result = self.try_image_inpainting(prompts, image, mask, negative_prompts)
            self.after_run()

            return result

    raise Exception("Failed to run image inpainting")

def run_image_outpainting(
    self,
    prompts: list[str],
    image: ImageArtifact,
    mask: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact:
    for attempt in self.retrying():
        with attempt:
            self.before_run(prompts, negative_prompts)
            result = self.try_image_outpainting(prompts, image, mask, negative_prompts)
            self.after_run()

            return result

    raise Exception("Failed to run image outpainting")

def run_image_variation(
    self,
    prompts: list[str],
    image: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact:
    for attempt in self.retrying():
        with attempt:
            self.before_run(prompts, negative_prompts)
            result = self.try_image_variation(prompts, image, negative_prompts)
            self.after_run()

            return result

    raise Exception("Failed to generate image variations")

def run_text_to_image(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> ImageArtifact:
    for attempt in self.retrying():
        with attempt:
            self.before_run(prompts, negative_prompts)
            result = self.try_text_to_image(prompts, negative_prompts)
            self.after_run()

            return result

    raise Exception("Failed to run text to image generation")

@abstractmethod
def try_image_inpainting(
    self,
    prompts: list[str],
    image: ImageArtifact,
    mask: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact: ...

@abstractmethod
def try_image_outpainting(
    self,
    prompts: list[str],
    image: ImageArtifact,
    mask: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact: ...

@abstractmethod
def try_image_variation(
    self,
    prompts: list[str],
    image: ImageArtifact,
    negative_prompts: Optional[list[str]] = None,
) -> ImageArtifact: ...

@abstractmethod
def try_text_to_image(self, prompts: list[str], negative_prompts: Optional[list[str]] = None) -> ImageArtifact: ...

@define
class BaseMultiModelImageGenerationDriver(BaseImageGenerationDriver, ABC):
    """Image Generation Driver for platforms like Amazon Bedrock that host many LLM models.

    Instances of this Image Generation Driver require a Image Generation Model Driver which is used to structure the
    image generation request in the format required by the model and to process the output.

    Attributes:
        image_generation_model_driver: Image Model Driver to use.
    """

    image_generation_model_driver: BaseImageGenerationModelDriver = field(kw_only=True, metadata={"serializable": True})