"""Widget templates an admin writes or copies in are rows

Each row is one template's YAML and its name, beside the bundled templates
that ship as files (#5692).

Revision ID: prometheus_002_templates
Revises: prometheus_001_targets
Create Date: 2026-10-14
"""
from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "prometheus_002_templates"
down_revision: Union[str, None] = "prometheus_001_targets"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "prometheus_widget_templates",
        sa.Column("id", sa.String(36), primary_key=True),
        sa.Column("name", sa.String(80), nullable=False, unique=True),
        sa.Column("text", sa.Text, nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), nullable=False),
    )


def downgrade() -> None:
    op.drop_table("prometheus_widget_templates")