"""add article tables

Revision ID: 0020
Revises: 0019
Create Date: 2026-05-31

"""

from typing import Sequence, Union

import sqlalchemy as sa
from sqlalchemy.dialects import postgresql

from alembic import op

revision: str = "0020"
down_revision: Union[str, None] = "0019"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "article",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column("article_type", sa.Text(), nullable=False),
        sa.Column("language", sa.Text(), nullable=False),
        sa.Column("target_complexity", sa.Text(), nullable=False),
        sa.Column("title", sa.Text(), nullable=False),
        sa.Column("text", sa.Text(), nullable=False),
        sa.Column("text_linguistic_data", postgresql.JSONB(), nullable=True),
        sa.Column("audio_key", sa.Text(), nullable=True),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.Column("published_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
    )

    op.create_table(
        "article_ownership",
        sa.Column("id", postgresql.UUID(as_uuid=True), primary_key=True),
        sa.Column(
            "article_id",
            postgresql.UUID(as_uuid=True),
            sa.ForeignKey("article.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column("ownership_role", sa.Text(), nullable=False),
        sa.Column(
            "user_id",
            postgresql.UUID(as_uuid=True),
            sa.ForeignKey("users.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            nullable=False,
            server_default=sa.func.now(),
        ),
        sa.Column("deleted_at", sa.DateTime(timezone=True), nullable=True),
    )
    op.create_index(
        "ix_article_ownership_article_id", "article_ownership", ["article_id"]
    )
    op.create_index("ix_article_ownership_user_id", "article_ownership", ["user_id"])


def downgrade() -> None:
    op.drop_index("ix_article_ownership_user_id", table_name="article_ownership")
    op.drop_index("ix_article_ownership_article_id", table_name="article_ownership")
    op.drop_table("article_ownership")
    op.drop_table("article")