feat: refactor services folder/module structure
Refactor services folder/module structure.
**Motivation**
While working on our services I've repeatedly encountered circular imports and a general lack of clarity regarding where to put things. The structure introduced goes a long way towards resolving those issues, setting us up for a clean structure going forward.
**Services**
Services are now in their own folder with a few files:
- `services/{service_name}/__init__.py`: init as needed, mostly empty now
- `services/{service_name}/{service_name}_base.py`: the base class for the service
- `services/{service_name}/{service_name}_{impl_type}.py`: the default concrete implementation of the service - typically one of `sqlite`, `default`, or `memory`
- `services/{service_name}/{service_name}_common.py`: any common items - models, exceptions, utilities, etc
Though it's a bit verbose to have the service name both as the folder name and the prefix for files, I found it is _extremely_ confusing to have all of the base classes just be named `base.py`. So, at the cost of some verbosity when importing things, I've included the service name in the filename.
There are some minor logic changes. For example, in `InvocationProcessor`, instead of assigning the model manager service to a variable to be used later in the file, the service is used directly via the `Invoker`.
**Shared**
Things that are used across disparate services are in `services/shared/`:
- `default_graphs.py`: previously in `services/`
- `graphs.py`: previously in `services/`
- `paginatation`: generic pagination models used in a few services
- `sqlite`: the `SqliteDatabase` class, other sqlite-specific things
2023-09-24 08:11:07 +00:00
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from abc import ABC, abstractmethod
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class UrlServiceBase(ABC):
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"""Responsible for building URLs for resources."""
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@abstractmethod
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def get_image_url(self, image_name: str, thumbnail: bool = False) -> str:
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"""Gets the URL for an image or thumbnail."""
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pass
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2024-03-06 03:57:05 +00:00
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@abstractmethod
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def get_model_image_url(self, model_key: str) -> str:
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"""Gets the URL for a model image"""
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pass
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2024-08-07 13:58:27 +00:00
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@abstractmethod
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def get_style_preset_image_url(self, style_preset_id: str) -> str:
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"""Gets the URL for a style preset image"""
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pass
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