import uuid
from datetime import datetime

from sqlalchemy import DateTime, Integer, String, Text
from sqlalchemy.dialects.postgresql import JSONB, UUID
from sqlalchemy.orm import Mapped, mapped_column

from app.core.db import Base
from app.models.mixins import TimestampMixin

DELIVERY_STATUSES = ("pending", "delivering", "succeeded", "failed")


class OutboxEvent(TimestampMixin, Base):
    __tablename__ = "outbox_events"

    event_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    event_type: Mapped[str] = mapped_column(String(60), nullable=False)
    aggregate_type: Mapped[str] = mapped_column(String(30), nullable=False)
    aggregate_id: Mapped[uuid.UUID] = mapped_column(UUID(as_uuid=True), nullable=False)
    payload_json: Mapped[dict] = mapped_column(JSONB, nullable=False, default=dict)
    occurred_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
    delivery_status: Mapped[str] = mapped_column(String(20), nullable=False, default="pending")
    attempts: Mapped[int] = mapped_column(Integer, nullable=False, default=0)
    next_attempt_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    last_error: Mapped[str | None] = mapped_column(Text)
    # Stable, localizable classification of last_error -- the frontend renders a
    # localized summary from this code as the primary text and shows last_error itself
    # only under "Technical details" (section 10 of docs/fleet-ops-correction/
    # current-gap-audit.md). Kept alongside the raw message for backward compatibility.
    last_error_code: Mapped[str | None] = mapped_column(String(60))
    external_run_id: Mapped[str | None] = mapped_column(String(120))