"""prompt settings

Admin overrides for shipped system prompts. A row exists only when an admin has
changed a prompt from its code default; `content` is the full replacement text.

Revision ID: f3c8d5a92b47
Revises: e7b2c4a1f6d9
Create Date: 2026-07-22 00:00:00.000000

"""

from typing import Sequence, Union

import sqlalchemy as sa

from alembic import op

# revision identifiers, used by Alembic.
revision: str = "f3c8d5a92b47"
down_revision: Union[str, Sequence[str], None] = "d5a9c1e3b7f2"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    """Upgrade schema."""
    op.create_table(
        "prompt_settings",
        sa.Column("key", sa.String(length=64), nullable=False),
        sa.Column("content", sa.Text(), nullable=False),
        sa.Column("id", sa.Uuid(), nullable=False),
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("now()"),
            nullable=False,
        ),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("now()"),
            nullable=False,
        ),
        sa.PrimaryKeyConstraint("id"),
        sa.UniqueConstraint("key"),
    )


def downgrade() -> None:
    """Downgrade schema."""
    op.drop_table("prompt_settings")