ytdl-sub/ytdl_subscribe/validators/config/subscription_validator.py
2022-04-03 18:02:22 +00:00

93 lines
3.5 KiB
Python

from typing import Any
from typing import List
import yaml
from mergedeep import mergedeep
from ytdl_subscribe.subscriptions.soundcloud import SoundcloudSubscription
from ytdl_subscribe.subscriptions.subscription import Subscription
from ytdl_subscribe.subscriptions.youtube import YoutubeSubscription
from ytdl_subscribe.utils.enums import SubscriptionSourceName
from ytdl_subscribe.validators.base.strict_dict_validator import StrictDictValidator
from ytdl_subscribe.validators.base.validators import DictValidator
from ytdl_subscribe.validators.base.validators import StringValidator
from ytdl_subscribe.validators.config.config_validator import ConfigValidator
from ytdl_subscribe.validators.config.preset_validator import PresetValidator
class SubscriptionValidator(StrictDictValidator):
"""
A Subscription is a preset but overrides it with specific values
"""
required_keys = {"preset"}
optional_keys = PresetValidator.required_keys.union(PresetValidator.optional_keys)
def __init__(self, config: ConfigValidator, name: str, value: Any):
super().__init__(name, value)
self.config = config
self.overrides = self.validate_key(
key="overrides",
validator=DictValidator,
default={},
)
preset_name = self.validate_key(
key="preset",
validator=StringValidator,
).value
available_presets = self.config.presets.keys
if preset_name not in available_presets:
raise self._validation_exception(
f"'preset '{preset_name}' does not exist in the provided config. "
f"Available presets: {', '.join(available_presets)}"
)
# A little hacky, we will override the preset with the contents of this subscription, then validate it
preset_dict = mergedeep.merge(
self.config.presets.dict[preset_name],
self.dict,
strategy=mergedeep.Strategy.REPLACE,
)
del preset_dict["preset"]
self.preset = PresetValidator(
name=self.name,
value=preset_dict,
)
def to_subscription(self) -> Subscription:
if self.preset.subscription_source_name == SubscriptionSourceName.SOUNDCLOUD:
subscription_class = SoundcloudSubscription
elif self.preset.subscription_source_name == SubscriptionSourceName.YOUTUBE:
subscription_class = YoutubeSubscription
else:
raise ValueError("subscription source class not found")
return subscription_class(
name=self.name,
options=self.preset.get(self.preset.subscription_source_name),
ytdl_opts=self.preset.get("ytdl_options"),
post_process=self.preset.get("post_process"),
overrides=self.preset.get("overrides"),
output_path=self.preset.get("output_path"),
)
@classmethod
def from_file_path(
cls, config: ConfigValidator, subscription_path: str
) -> List["SubscriptionValidator"]:
# TODO: Create separate yaml file loader class
with open(subscription_path, "r", encoding="utf-8") as file:
subscription_dict = yaml.safe_load(file)
subscriptions: List["SubscriptionValidator"] = []
for subscription_key, subscription_object in subscription_dict.items():
subscriptions.append(
SubscriptionValidator(
config=config, name=subscription_key, value=subscription_object
)
)
return subscriptions