from __future__ import annotations
from sqlalchemy import Column, Integer, String, Text, Boolean, DateTime, JSON, UniqueConstraint
from sqlalchemy.sql import func

from app.database import Base


class CalendarMonth(Base):
    __tablename__ = "calendar_months"
    __table_args__ = (UniqueConstraint("year", "month", name="uq_calendar_year_month"),)

    id = Column(Integer, primary_key=True, autoincrement=True)
    year = Column(Integer, nullable=False)
    month = Column(Integer, nullable=False)  # 1-12
    title = Column(String(100))
    description = Column(Text)
    weather = Column(String(200))
    highlights = Column(JSON)  # list of strings
    events = Column(JSON)      # list of {date, title, description}
    is_available = Column(Boolean, default=True)
    updated_at = Column(DateTime, server_default=func.now(), onupdate=func.now())