from datetime import datetime

from sqlalchemy import DateTime, Integer, String, Text
from sqlalchemy.orm import Mapped, mapped_column

from app.core.constants import ActorValue
from app.core.database import Base
from app.modules.approvals.constants import ApprovalStatus


class ApprovalRequest(Base):
    __tablename__ = "approval_requests"

    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
    ticket_id: Mapped[str] = mapped_column(String(64), unique=True, index=True)
    domain: Mapped[str] = mapped_column(String(128), index=True)
    record_id: Mapped[str | None] = mapped_column(String(128), nullable=True, index=True)
    action: Mapped[str] = mapped_column(String(128), index=True)
    applicant: Mapped[str] = mapped_column(String(128), default=ActorValue.API, index=True)
    approver: Mapped[str | None] = mapped_column(String(128), nullable=True, index=True)
    status: Mapped[str] = mapped_column(String(32), default=ApprovalStatus.PENDING, index=True)
    reason: Mapped[str | None] = mapped_column(Text, nullable=True)
    payload: Mapped[str | None] = mapped_column(Text, nullable=True)
    decision_comment: Mapped[str | None] = mapped_column(Text, nullable=True)
    created_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow, index=True)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime,
        default=datetime.utcnow,
        onupdate=datetime.utcnow,
    )
    decided_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)