120 lines
3.7 KiB
Python
120 lines
3.7 KiB
Python
import copy
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from typing import Dict
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from typing import List
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from ytdl_sub.config.config_file import ConfigFile
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from ytdl_sub.config.preset import Preset
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from ytdl_sub.subscriptions.subscription_download import SubscriptionDownload
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from ytdl_sub.utils.yaml import load_yaml
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from ytdl_sub.validators.validators import LiteralDictValidator
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FILE_PRESET_APPLY_KEY = "__preset__"
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class Subscription(SubscriptionDownload):
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@classmethod
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def from_preset(cls, preset: Preset, config: ConfigFile) -> "Subscription":
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"""
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Creates a subscription from a preset
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Parameters
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----------
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preset
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Preset to make the subscription out of
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config
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The config file that should contain this preset
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Returns
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-------
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Initialized subscription
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"""
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return cls(
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name=preset.name,
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preset_options=preset,
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config_options=config.config_options,
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)
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@classmethod
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def from_dict(cls, config: ConfigFile, preset_name: str, preset_dict: Dict) -> "Subscription":
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"""
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Creates a subscription from a preset dict
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Parameters
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----------
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config:
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Validated instance of the config
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preset_name:
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Name of the preset
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preset_dict:
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The preset config in dict format
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Returns
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-------
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Initialized subscription
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"""
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return cls.from_preset(
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preset=Preset.from_dict(
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config=config,
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preset_name=preset_name,
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preset_dict=preset_dict,
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),
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config=config,
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)
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@classmethod
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def from_file_path(cls, config: ConfigFile, subscription_path: str) -> List["Subscription"]:
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"""
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Parameters
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----------
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config:
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Validated instance of the config
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subscription_path:
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File path to the subscription yaml file
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Returns
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-------
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List of subscriptions, for each one in the subscription yaml
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"""
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subscriptions: List["Subscription"] = []
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subscription_dict = load_yaml(file_path=subscription_path)
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has_file_preset = FILE_PRESET_APPLY_KEY in subscription_dict
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# If a file preset is present...
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if has_file_preset:
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# Validate it (make sure it is a dict)
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file_preset = LiteralDictValidator(
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name=f"{subscription_path}.{FILE_PRESET_APPLY_KEY}",
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value=subscription_dict[FILE_PRESET_APPLY_KEY],
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)
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# Deep copy the config and add this file preset to its preset list
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config = copy.deepcopy(config)
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config.presets.dict[FILE_PRESET_APPLY_KEY] = file_preset.dict
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for subscription_key, subscription_object in subscription_dict.items():
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# Skip file preset
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if subscription_key == FILE_PRESET_APPLY_KEY:
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continue
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# If it has file_preset, inject it as a parent preset
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if has_file_preset:
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parent_preset = subscription_object.get("preset", [])
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# Preset can be a single string
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if isinstance(parent_preset, str):
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parent_preset = [parent_preset]
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# If it's not a string or list, it will fail downstream
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if isinstance(parent_preset, list):
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subscription_object["preset"] = parent_preset + [FILE_PRESET_APPLY_KEY]
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subscriptions.append(
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cls.from_dict(
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config=config,
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preset_name=subscription_key,
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preset_dict=subscription_object,
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)
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)
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return subscriptions
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