"""add prompt release checks

Revision ID: 20260429_add_prompt_release_checks
Revises: 20260429_rename_glm_provider_to_dashscope
Create Date: 2026-04-29
"""

from __future__ import annotations

from alembic import op
import sqlalchemy as sa

try:
    from sqlalchemy.dialects.postgresql import JSONB
except Exception:  # pragma: no cover
    JSONB = sa.JSON


revision = "20260429_add_prompt_release_checks"
down_revision = "20260429_rename_glm_provider_to_dashscope"
branch_labels = None
depends_on = None


def _json_type(bind):
    return JSONB() if bind.dialect.name == "postgresql" else sa.JSON()


def _table_exists(bind, table_name: str) -> bool:
    return sa.inspect(bind).has_table(table_name)


def upgrade() -> None:
    bind = op.get_bind()
    if _table_exists(bind, "prompt_release_checks"):
        return

    op.create_table(
        "prompt_release_checks",
        sa.Column("id", sa.Integer(), primary_key=True, autoincrement=True),
        sa.Column("tenant_id", sa.BigInteger(), nullable=False),
        sa.Column("prompt_key", sa.String(length=128), nullable=False),
        sa.Column("release_id", sa.Integer(), nullable=False),
        sa.Column("check_type", sa.String(length=48), nullable=False),
        sa.Column("status", sa.String(length=24), nullable=False),
        sa.Column("severity", sa.String(length=16), nullable=False, server_default="info"),
        sa.Column("summary", sa.Text(), nullable=False),
        sa.Column("details_json", _json_type(bind), nullable=True),
        sa.Column("created_by", sa.BigInteger(), nullable=True),
        sa.Column("completed_at", sa.String(length=64), nullable=True),
        sa.Column("created_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
        sa.Column("updated_at", sa.TIMESTAMP(), nullable=False, server_default=sa.func.now()),
        sa.ForeignKeyConstraint(["release_id"], ["prompt_releases.id"], ondelete="CASCADE"),
    )
    op.create_index("ix_prompt_release_checks_tenant_id", "prompt_release_checks", ["tenant_id"], unique=False)
    op.create_index("ix_prompt_release_checks_prompt_key", "prompt_release_checks", ["prompt_key"], unique=False)
    op.create_index("ix_prompt_release_checks_release_id", "prompt_release_checks", ["release_id"], unique=False)
    op.create_index("ix_prompt_release_checks_check_type", "prompt_release_checks", ["check_type"], unique=False)
    op.create_index("ix_prompt_release_checks_status", "prompt_release_checks", ["status"], unique=False)
    op.create_index("ix_prompt_release_checks_severity", "prompt_release_checks", ["severity"], unique=False)
    op.create_index("ix_prompt_release_checks_created_by", "prompt_release_checks", ["created_by"], unique=False)


def downgrade() -> None:
    bind = op.get_bind()
    if not _table_exists(bind, "prompt_release_checks"):
        return
    for index_name in (
        "ix_prompt_release_checks_created_by",
        "ix_prompt_release_checks_severity",
        "ix_prompt_release_checks_status",
        "ix_prompt_release_checks_check_type",
        "ix_prompt_release_checks_release_id",
        "ix_prompt_release_checks_prompt_key",
        "ix_prompt_release_checks_tenant_id",
    ):
        op.drop_index(index_name, table_name="prompt_release_checks")
    op.drop_table("prompt_release_checks")