"""Monthly report and school stats models."""
import uuid
from datetime import datetime, timezone, date
from sqlalchemy import String, DateTime, Date, Text, JSON, Numeric, Integer, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column
from app.database import Base


class MonthlyReport(Base):
    """Record of each monthly report sent to a school."""
    __tablename__ = "monthly_reports"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    school_id: Mapped[str] = mapped_column(String(36), ForeignKey("schools.id", ondelete="CASCADE"), nullable=False, index=True)
    report_month: Mapped[str] = mapped_column(String(7), nullable=False)  # YYYY-MM
    email_sent_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    report_data: Mapped[dict | None] = mapped_column(JSON, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), default=lambda: datetime.now(timezone.utc))


class SchoolMonthlyStats(Base):
    """Attendance + SMS stats pulled from on-prem each month."""
    __tablename__ = "school_monthly_stats"

    id: Mapped[str] = mapped_column(String(36), primary_key=True, default=lambda: str(uuid.uuid4()))
    school_id: Mapped[str] = mapped_column(String(36), ForeignKey("schools.id", ondelete="CASCADE"), nullable=False, index=True)
    report_month: Mapped[str] = mapped_column(String(7), nullable=False)  # YYYY-MM
    total_students: Mapped[int | None] = mapped_column(Integer, nullable=True)
    school_days: Mapped[int | None] = mapped_column(Integer, nullable=True)
    present_days_total: Mapped[int | None] = mapped_column(Integer, nullable=True)
    absent_days_total: Mapped[int | None] = mapped_column(Integer, nullable=True)
    late_days_total: Mapped[int | None] = mapped_column(Integer, nullable=True)
    avg_attendance_rate: Mapped[float | None] = mapped_column(Numeric(5, 2), nullable=True)
    sms_sent: Mapped[int | None] = mapped_column(Integer, nullable=True)
    pull_status: Mapped[str] = mapped_column(String(20), default="unavailable", nullable=False)  # success|failed|unavailable
    pulled_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    hub_base_url: Mapped[str | None] = mapped_column(String(500), nullable=True)