"""add adventure_text on games and adventure_chunks table (per-game RAG)

Revision ID: f1a2b3c4d5e6
Revises: e5f7a1c3b982
Create Date: 2026-09-02 10:00:00.000000

"""
from typing import Sequence, Union

from alembic import op
import sqlalchemy as sa
from pgvector.sqlalchemy import Vector

# revision identifiers, used by Alembic.
revision: str = 'f1a2b3c4d5e6'
down_revision: Union[str, None] = 'e5f7a1c3b982'
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.add_column(
        'games',
        sa.Column('adventure_text', sa.Text(), nullable=False, server_default=''),
    )

    op.create_table(
        'adventure_chunks',
        sa.Column('id', sa.UUID(), nullable=False),
        sa.Column('game_id', sa.UUID(), nullable=False),
        sa.Column('chunk_index', sa.Integer(), nullable=False),
        sa.Column('content', sa.Text(), nullable=False),
        sa.Column('embedding', Vector(384), nullable=False),
        sa.ForeignKeyConstraint(['game_id'], ['games.id'], ondelete='CASCADE'),
        sa.PrimaryKeyConstraint('id'),
    )
    op.create_index(
        op.f('ix_adventure_chunks_game_id'), 'adventure_chunks', ['game_id'], unique=False
    )


def downgrade() -> None:
    op.drop_index(op.f('ix_adventure_chunks_game_id'), table_name='adventure_chunks')
    op.drop_table('adventure_chunks')
    op.drop_column('games', 'adventure_text')