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43 lines
1.5 KiB
43 lines
1.5 KiB
"""Hidden Gems generator — low-popularity tracks from discovery pool.
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Wraps ``PersonalizedPlaylistsService.get_hidden_gems`` so the
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existing source-aware popularity threshold + diversity filter
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behavior is preserved verbatim. The user-tweakable knobs that
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arrive via ``PlaylistConfig`` (limit) flow through; future config
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options (popularity_max override, exclude_recent_days) get layered
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on the wrapper without changing the legacy implementation."""
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from __future__ import annotations
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from typing import Any, List
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from core.personalized.generators._common import coerce_tracks, get_service
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from core.personalized.specs import PlaylistKindSpec, get_registry
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from core.personalized.types import PlaylistConfig, Track
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KIND = 'hidden_gems'
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def generate(deps: Any, variant: str, config: PlaylistConfig) -> List[Track]:
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service = get_service(deps)
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rows = service.get_hidden_gems(limit=config.limit)
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return coerce_tracks(rows)
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SPEC = PlaylistKindSpec(
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kind=KIND,
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name_template='Hidden Gems',
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description='Low-popularity discovery picks — underground / indie tracks you probably haven\'t heard.',
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default_config=PlaylistConfig(limit=50, max_per_album=2, max_per_artist=3),
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generator=generate,
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requires_variant=False,
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tags=['discovery'],
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)
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# Register at import time so the manager auto-discovers this kind.
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# Re-import (e.g. test reloads) is tolerated: only register if absent.
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if get_registry().get(KIND) is None:
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get_registry().register(SPEC)
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