"""Create the immutable generation profile registry table."""

from __future__ import annotations

import sqlalchemy as sa
from alembic import op

revision = "0013_generation_profiles"
down_revision = "0012_profile_activations"
branch_labels = None
depends_on = None


def upgrade() -> None:
    op.execute(sa.text("CREATE SCHEMA IF NOT EXISTS models"))
    op.create_table(
        "generation_profiles",
        sa.Column("id", sa.Uuid(), primary_key=True),
        sa.Column("profile", sa.String(64), nullable=False),
        sa.Column("version", sa.String(64), nullable=False),
        sa.Column("provider", sa.String(32), nullable=False),
        sa.Column("model_identifier", sa.String(128), nullable=False),
        sa.Column("model_digest", sa.String(128), nullable=False),
        sa.Column("context_limit", sa.Integer(), nullable=False),
        sa.Column("max_output_tokens", sa.Integer(), nullable=False),
        sa.Column("temperature", sa.Float(), nullable=False),
        sa.Column("data_policy", sa.String(32), nullable=False),
        sa.Column("timeout_seconds", sa.Float(), nullable=False),
        sa.Column("max_retries", sa.Integer(), nullable=False),
        sa.Column("active", sa.Boolean(), nullable=False, server_default=sa.text("false")),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.UniqueConstraint("profile", "version", name="uq_models_generation_profile_version"),
        schema="models",
    )
    op.create_index(
        "ux_models_generation_profiles_active",
        "generation_profiles",
        ["active"],
        unique=True,
        schema="models",
        postgresql_where=sa.text("active = true"),
    )


def downgrade() -> None:
    op.drop_index(
        "ux_models_generation_profiles_active",
        table_name="generation_profiles",
        schema="models",
    )
    op.drop_table("generation_profiles", schema="models")
    op.execute(sa.text("DROP SCHEMA IF EXISTS models"))