import uuid
from datetime import datetime
import enum

from sqlalchemy import String, Integer, DateTime, ForeignKey, Enum as SAEnum, func
from sqlalchemy.dialects.postgresql import UUID, JSONB
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.core.database import Base


class ReportType(str, enum.Enum):
    pdf = "pdf"
    excel = "excel"
    word = "word"


class ExportReport(Base):
    __tablename__ = "export_reports"

    id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), primary_key=True, default=uuid.uuid4)
    case_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), ForeignKey("cases.id"), index=True)
    report_type: Mapped[ReportType] = mapped_column(SAEnum(ReportType))
    file_path: Mapped[str] = mapped_column(String(512), default="")
    version: Mapped[int] = mapped_column(Integer, default=1)
    content_snapshot: Mapped[dict] = mapped_column(JSONB, default=dict)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    case = relationship("Case", back_populates="reports")