import uuid
from datetime import datetime, timezone

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

from ..database import Base


class TranslatedArticleEntity(Base):
    __tablename__ = "translated_articles"

    id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), primary_key=True, default=uuid.uuid4
    )
    published_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
    )
    source_language: Mapped[str] = mapped_column(String(10), nullable=False)
    target_language: Mapped[str] = mapped_column(String(10), nullable=False)
    target_complexities: Mapped[list[str]] = mapped_column(ARRAY(String(5)), nullable=False)
    # Content fields — nullable, filled in step-by-step during generation
    source_title: Mapped[str | None] = mapped_column(Text, nullable=True)
    source_body: Mapped[str | None] = mapped_column(Text, nullable=True)
    source_body_pos: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    target_title: Mapped[str | None] = mapped_column(Text, nullable=True)
    target_body: Mapped[str | None] = mapped_column(Text, nullable=True)
    audio_url: Mapped[str | None] = mapped_column(Text, nullable=True)
    target_body_pos: Mapped[dict | None] = mapped_column(JSONB, nullable=True)
    target_body_transcript: Mapped[dict | None] = mapped_column(JSONB, nullable=True)