mirror of
https://github.com/jxxghp/MoviePilot.git
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114 lines
4.3 KiB
Python
114 lines
4.3 KiB
Python
"""分类策略运行时门面及 legacy 只读投影。"""
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from __future__ import annotations
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import threading
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from typing import Optional, cast
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from app.application.classification.configuration import (
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ClassificationPolicyConfigurationService,
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ClassificationPolicyNotInitializedError,
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)
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from app.application.classification.contract import ClassificationPolicyConflictError
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from app.application.classification.legacy import (
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project_policy_to_legacy_category_config,
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)
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from app.schemas.category import (
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CategoryConfig,
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ClassificationPolicy,
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ClassificationValidationIssue,
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MediaCategoryMap,
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)
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class ClassificationRuntime:
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"""
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向 API 和业务链暴露当前分类策略，并封装 legacy 迁移失败回退。
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持久化和 revision 并发控制由配置服务负责；本门面只协调动态字段登记和兼容投影。
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"""
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def __init__(
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self,
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service: ClassificationPolicyConfigurationService,
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*,
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legacy_config: Optional[CategoryConfig] = None,
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diagnostics: tuple[ClassificationValidationIssue, ...] = (),
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) -> None:
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"""绑定策略服务，并保存未成功迁移时的只读 legacy 快照。"""
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self._service = service
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self._legacy_config = (legacy_config or CategoryConfig()).model_copy(deep=True)
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self._diagnostics = tuple(issue.model_copy(deep=True) for issue in diagnostics)
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self._lock = threading.RLock()
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@property
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def service(self) -> ClassificationPolicyConfigurationService:
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"""返回当前 lifespan 唯一的策略配置服务。"""
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return self._service
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def active_policy(self) -> Optional[ClassificationPolicy]:
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"""返回活动策略；尚未成功迁移或初始化时返回 None。"""
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try:
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return self._service.active()
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except ClassificationPolicyNotInitializedError:
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return None
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def require_policy(self) -> ClassificationPolicy:
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"""返回活动策略；不可用时保留配置服务的明确未初始化异常。"""
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return self._service.active()
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def diagnostics(self) -> tuple[ClassificationValidationIssue, ...]:
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"""返回与内部引用隔离的当前迁移或发布诊断。"""
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with self._lock:
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return tuple(issue.model_copy(deep=True) for issue in self._diagnostics)
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def legacy_config(self) -> CategoryConfig:
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"""把活动策略投影为旧配置；策略不可用时返回启动时 legacy 快照。"""
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policy = self.active_policy()
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if policy is not None:
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return project_policy_to_legacy_category_config(policy)
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with self._lock:
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return cast(CategoryConfig, self._legacy_config.model_copy(deep=True))
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def media_categories(self) -> MediaCategoryMap:
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"""按策略顺序返回电影、电视剧和音乐的启用分类名称。"""
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categories: dict[str, list[str]] = {
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"电影": [],
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"电视剧": [],
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"音乐": [],
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}
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policy = self.active_policy()
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if policy is None:
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legacy = self.legacy_config()
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categories["电影"] = list((legacy.movie or {}).keys())
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categories["电视剧"] = list((legacy.tv or {}).keys())
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return MediaCategoryMap(categories)
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for category in policy.categories:
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if category.enabled and category.name not in categories[category.media_type]:
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categories[category.media_type].append(category.name)
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return MediaCategoryMap(categories)
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async def publish_policy(
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self,
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policy: ClassificationPolicy,
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*,
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expected_revision: int,
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) -> ClassificationPolicy:
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"""发布新版策略；未迁移的空存储允许以 revision 0 初始化恢复。"""
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current = self.active_policy()
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if current is None:
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if expected_revision != 0:
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raise ClassificationPolicyConflictError(
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expected_revision=expected_revision,
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current_revision=0,
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)
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published = await self._service.async_initialize(policy)
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else:
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published = await self._service.async_publish(
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policy,
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expected_revision=expected_revision,
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)
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with self._lock:
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self._diagnostics = ()
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return published
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