mirror of
https://github.com/jxxghp/MoviePilot.git
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62 lines
2.0 KiB
Python
62 lines
2.0 KiB
Python
"""数据库治理能力的宿主组合根。"""
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from __future__ import annotations
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from app.adapters.system.backup.database import (
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PostgreSQLBackupBackend,
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SQLiteBackupBackend,
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)
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from app.application.backup import BackupPolicy, DatabaseBackupService
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from app.application.database import (
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DatabaseGovernance,
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DatabaseHealthService,
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configure_database_governance,
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)
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from app.application.maintenance import (
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DataCleanupService,
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read_cleanup_policy,
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)
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from app.db.engine import get_engine
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from app.db.health import probe_database
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from app.db.maintenance import DatabaseCleanupRepository
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from app.db.session import SessionFactory
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from app.runtime.config import settings
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def build_database_governance() -> DatabaseGovernance:
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"""以缓存同步引擎为事实源构造一个完整数据库治理门面。"""
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engine = get_engine()
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dialect = engine.dialect.name
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if dialect == "sqlite":
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backup_backend = SQLiteBackupBackend(engine)
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elif dialect == "postgresql":
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backup_backend = PostgreSQLBackupBackend(engine)
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else:
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raise RuntimeError(f"不支持的数据库类型：{dialect}")
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return DatabaseGovernance(
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health=DatabaseHealthService(probe_database),
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cleanup=DataCleanupService(
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repository=DatabaseCleanupRepository(session_factory=SessionFactory),
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policy_reader=read_cleanup_policy,
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),
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backup=DatabaseBackupService(
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backend=backup_backend,
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policy_reader=read_backup_policy,
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),
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)
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def configure_database() -> None:
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"""构造并登记宿主进程唯一的数据库治理门面。"""
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configure_database_governance(build_database_governance())
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def read_backup_policy() -> BackupPolicy:
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"""读取一次可热更新的数据库备份目录与保留策略。"""
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return BackupPolicy(
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root=settings.DATABASE_BACKUP_PATH,
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retention_days=settings.DB_BACKUP_RETENTION_DAYS,
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max_count=settings.DB_BACKUP_MAX_COUNT,
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)
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