65 lines
1.7 KiB
Python
65 lines
1.7 KiB
Python
"""Alert notification domain models."""
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from __future__ import annotations
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import json
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from dataclasses import asdict, dataclass
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from pathlib import Path
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from typing import Any
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@dataclass
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class AlertEvent:
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severity: str
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message: str
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ltv_ratio: float
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warning_threshold: float
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critical_threshold: float
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spot_price: float
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updated_at: str
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email_alerts_enabled: bool
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def to_dict(self) -> dict[str, Any]:
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return asdict(self)
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@classmethod
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def from_dict(cls, data: dict[str, Any]) -> "AlertEvent":
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return cls(**{k: v for k, v in data.items() if k in cls.__dataclass_fields__})
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@dataclass
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class AlertStatus:
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severity: str
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message: str
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ltv_ratio: float
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warning_threshold: float
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critical_threshold: float
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email_alerts_enabled: bool
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history: list[AlertEvent]
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class AlertHistoryRepository:
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"""File-backed alert history store."""
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HISTORY_PATH = Path("data/alert_history.json")
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def __init__(self, history_path: Path | None = None) -> None:
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self.history_path = history_path or self.HISTORY_PATH
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self.history_path.parent.mkdir(parents=True, exist_ok=True)
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def load(self) -> list[AlertEvent]:
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if not self.history_path.exists():
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return []
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try:
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with self.history_path.open() as f:
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data = json.load(f)
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except (json.JSONDecodeError, OSError):
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return []
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if not isinstance(data, list):
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return []
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return [AlertEvent.from_dict(item) for item in data if isinstance(item, dict)]
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def save(self, events: list[AlertEvent]) -> None:
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with self.history_path.open("w") as f:
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json.dump([event.to_dict() for event in events], f, indent=2)
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