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app/models/mariadb/monitoring.py

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+from __future__ import annotations
+
+from datetime import datetime
+
+from sqlmodel import Field, SQLModel
+
+from app.core.constants import AlertSeverity
+from app.db.base import TimestampMixin
+
+
+class AlertRule(TimestampMixin, SQLModel, table=True):
+    __tablename__ = "alert_rules"
+
+    id: int | None = Field(default=None, primary_key=True)
+    name: str = Field(max_length=100)
+    description: str = Field(default="", max_length=500)
+    metric: str = Field(max_length=100)
+    condition: str = Field(max_length=50)
+    threshold: float
+    severity: str = Field(default=AlertSeverity.WARNING, max_length=20)
+    is_enabled: bool = Field(default=True)
+    device_group_id: int | None = Field(default=None, foreign_key="device_groups.id")
+    created_by: int | None = Field(default=None, foreign_key="users.id")
+
+
+class Alert(TimestampMixin, SQLModel, table=True):
+    __tablename__ = "alerts"
+
+    id: int | None = Field(default=None, primary_key=True)
+    rule_id: int | None = Field(default=None, foreign_key="alert_rules.id")
+    device_id: int | None = Field(default=None, foreign_key="devices.id")
+    severity: str = Field(default=AlertSeverity.WARNING, max_length=20)
+    message: str = Field(max_length=500)
+    is_acknowledged: bool = Field(default=False)
+    acknowledged_by: int | None = Field(default=None, foreign_key="users.id")
+    acknowledged_at: datetime | None = Field(default=None)