"""AI-generated weekly report summary — cached per week per user."""

import uuid
from datetime import date, datetime
from sqlalchemy import String, Text, DateTime, Date, func
from sqlalchemy.orm import Mapped, mapped_column
from sqlalchemy.dialects.postgresql import UUID
from app.database import Base


class AISummary(Base):
    __tablename__ = "ai_summaries"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    week_start: Mapped[date] = mapped_column(Date, index=True)
    week_end: Mapped[date] = mapped_column(Date)
    period: Mapped[str] = mapped_column(String(10), default="week")  # 'week' / 'month'
    generated_by: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), index=True)
    role: Mapped[str] = mapped_column(String(20))
    summary: Mapped[str] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())