78 lines
2.7 KiB
Python
78 lines
2.7 KiB
Python
from __future__ import annotations
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from typing import Dict, List, Optional, Set, Tuple, Type, TypedDict, Union
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from ..utils.config import main_settings
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from ..utils.string_processing import hash_url, unify
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from .collection import Collection
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from .metadata import ID3Timestamp
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from .metadata import Mapping as id3Mapping
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from .metadata import Metadata
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from .parents import OuterProxy as Base
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class ArtworkVariant(TypedDict):
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url: str
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width: int
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height: int
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deviation: float
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class Artwork:
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def __init__(self, *variants: List[ArtworkVariant], parent_artworks: Set[Artwork] = None) -> None:
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self.parent_artworks: Set[Artwork] = parent_artworks or set()
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self._variant_mapping: Dict[str, ArtworkVariant] = {}
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for variant in variants:
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self.append(**variant)
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@staticmethod
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def _calculate_deviation(*dimensions: List[int]) -> float:
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return sum(abs(d - main_settings["preferred_artwork_resolution"]) for d in dimensions) / len(dimensions)
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def append(self, url: str, width: int = main_settings["preferred_artwork_resolution"], height: int = main_settings["preferred_artwork_resolution"], **kwargs) -> None:
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if url is None:
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return
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self._variant_mapping[hash_url(url=url)] = {
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"url": url,
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"width": width,
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"height": height,
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"deviation": self._calculate_deviation(width, height),
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}
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@property
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def flat_empty(self) -> bool:
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return len(self._variant_mapping.keys()) <= 0
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def _get_best_from_list(self, artwork_variants: List[ArtworkVariant]) -> Optional[ArtworkVariant]:
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return min(artwork_variants, key=lambda x: x["deviation"])
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@property
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def best_variant(self) -> ArtworkVariant:
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if self.flat_empty:
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return self._get_best_from_list([parent.best_variant for parent in self.parent_artworks])
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return self._get_best_from_list(self._variant_mapping.values())
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def get_variant_name(self, variant: ArtworkVariant) -> str:
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return f"artwork_{variant['width']}x{variant['height']}_{hash_url(variant['url']).replace('/', '_')}"
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def __merge__(self, other: Artwork, **kwargs) -> None:
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self.parent_artworks.update(other.parent_artworks)
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for key, value in other._variant_mapping.items():
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if key not in self._variant_mapping:
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self._variant_mapping[key] = value
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def __hash__(self) -> int:
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return id(self)
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def __eq__(self, other: Artwork) -> bool:
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if hash(self) == hash(other):
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return True
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if not isinstance(other, Artwork):
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return False
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return any(a == b for a, b in zip(self._variant_mapping.keys(), other._variant_mapping.keys()))
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