81 lines
3.7 KiB
Python
81 lines
3.7 KiB
Python
from __future__ import annotations
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from datetime import datetime, timezone
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from uuid import uuid4
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from sqlalchemy import JSON, DateTime, Float, Integer, String, Text
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from sqlalchemy.orm import DeclarativeBase, Mapped, mapped_column
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def _utcnow() -> datetime:
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return datetime.now(timezone.utc)
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class WWIBase(DeclarativeBase):
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pass
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class WWIReorderRecommendation(WWIBase):
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"""Persisted WWI stock reorder recommendation runs."""
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__tablename__ = "wwi_reorder_recommendations"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_utcnow, index=True)
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item_count: Mapped[int] = mapped_column(Integer)
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trigger_source: Mapped[str] = mapped_column(String(64), index=True)
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trace_id: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
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span_id: Mapped[str | None] = mapped_column(String(16), nullable=True)
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payload: Mapped[list[dict]] = mapped_column(JSON, default=list)
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class WWISupplierScore(WWIBase):
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"""Persisted WWI supplier reliability scoring runs."""
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__tablename__ = "wwi_supplier_scores"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
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computed_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_utcnow, index=True)
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supplier_count: Mapped[int] = mapped_column(Integer)
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top_n: Mapped[int] = mapped_column(Integer)
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trigger_source: Mapped[str] = mapped_column(String(64), index=True)
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trace_id: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
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span_id: Mapped[str | None] = mapped_column(String(16), nullable=True)
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payload: Mapped[list[dict]] = mapped_column(JSON, default=list)
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class WWIWhatIfScenario(WWIBase):
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"""User-submitted what-if simulation results."""
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__tablename__ = "wwi_whatif_scenarios"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_utcnow, index=True)
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stock_item_key: Mapped[int] = mapped_column(Integer, index=True)
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stock_item_name: Mapped[str] = mapped_column(String(200))
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demand_multiplier: Mapped[float] = mapped_column(Float)
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current_stock: Mapped[float] = mapped_column(Float)
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avg_daily_demand: Mapped[float] = mapped_column(Float)
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projected_days_until_stockout: Mapped[float | None] = mapped_column(Float, nullable=True)
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recommended_order_qty: Mapped[float] = mapped_column(Float)
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trace_id: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
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span_id: Mapped[str | None] = mapped_column(String(16), nullable=True)
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result: Mapped[dict] = mapped_column(JSON, default=dict)
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class WWIBusinessEvent(WWIBase):
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"""Automatically generated business alert events."""
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__tablename__ = "wwi_business_events"
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id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid4()))
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occurred_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=_utcnow, index=True)
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event_type: Mapped[str] = mapped_column(String(50), index=True) # LOW_STOCK, ORDER_DROP, SUPPLIER_RISK
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severity: Mapped[str] = mapped_column(String(20), index=True) # HIGH, MEDIUM, LOW
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entity_key: Mapped[str] = mapped_column(String(100), index=True)
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entity_name: Mapped[str] = mapped_column(String(200))
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message: Mapped[str] = mapped_column(Text)
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trace_id: Mapped[str | None] = mapped_column(String(32), nullable=True, index=True)
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span_id: Mapped[str | None] = mapped_column(String(16), nullable=True)
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details: Mapped[dict] = mapped_column(JSON, default=dict)
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