"""Case model - 案件."""

from __future__ import annotations
from datetime import datetime
from decimal import Decimal
from sqlalchemy import String, Text, DateTime, Numeric
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.models.database import Base


class Case(Base):
    __tablename__ = "cases"

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    case_number: Mapped[str] = mapped_column(String(64), unique=True, index=True)
    victim_name: Mapped[str] = mapped_column(String(128))
    description: Mapped[str] = mapped_column(Text, default="")
    total_loss: Mapped[Decimal] = mapped_column(Numeric(18, 2), default=0)
    status: Mapped[str] = mapped_column(String(32), default="in_progress")  # in_progress | completed
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
    updated_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)

    screenshots: Mapped[list["Screenshot"]] = relationship("Screenshot", back_populates="case", cascade="all, delete-orphan")
    transactions: Mapped[list["Transaction"]] = relationship("Transaction", back_populates="case", cascade="all, delete-orphan")

    def __repr__(self) -> str:
        return f"<Case(id={self.id}, case_number={self.case_number})>"