"""Mission report (PDF / JSON / Markdown bundle)."""

from __future__ import annotations

from datetime import datetime
from typing import TYPE_CHECKING, Any
from uuid import UUID

from sqlalchemy import (
    JSON,
    DateTime,
    ForeignKey,
    Integer,
    String,
)
from sqlalchemy.orm import Mapped, mapped_column, relationship

from mimic.db.base import Base, TimestampsMixin, UuidPkMixin

if TYPE_CHECKING:
    from mimic.db.models.engagement import Engagement


class Report(UuidPkMixin, TimestampsMixin, Base):
    __tablename__ = "report"

    engagement_id: Mapped[UUID] = mapped_column(
        ForeignKey("engagement.id", ondelete="CASCADE"),
        nullable=False,
    )
    version: Mapped[int] = mapped_column(Integer, default=1, nullable=False)

    content_json: Mapped[dict[str, Any]] = mapped_column(JSON, nullable=False, default=dict)
    content_sha256: Mapped[str] = mapped_column(String(64), nullable=False)
    # SHA-256 of canonical JSON. Identical hash referenced in PDF footer, JSON
    # export and Markdown export (spec H19 / F9 / F14).

    pdf_path: Mapped[str | None] = mapped_column(String(512))
    md_path: Mapped[str | None] = mapped_column(String(512))

    generated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
    generated_by_id: Mapped[UUID | None] = mapped_column(ForeignKey("user.id", ondelete="SET NULL"))

    engagement: Mapped[Engagement] = relationship()