"""Each router's 4xx and 5xx responses by status code

The scraper folded traefik_service_requests_total{code} into a 4xx share and
a 5xx share and dropped the code, so a problem couldn't say whether it was
scanners probing (404), a login wall (401/403) or the app down (502/503/504)
(#5711). One row per router, scrape and code that occurred; the page reads a
router's codes over a time window, answered from the index alone.

Revision ID: traefik_006_status_codes
Revises: traefik_005_reload_at
Create Date: 2026-10-14
"""
from typing import Sequence, Union
from alembic import op
import sqlalchemy as sa

revision: str = "traefik_006_status_codes"
down_revision: Union[str, None] = "traefik_005_reload_at"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "traefik_status_codes",
        sa.Column("id", sa.String(36), primary_key=True),
        sa.Column("router_name", sa.String(255), nullable=False),
        sa.Column("scraped_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("code", sa.String(8), nullable=False),
        sa.Column("count", sa.Integer, nullable=False),
    )
    op.create_index("ix_traefik_status_codes_router_scraped", "traefik_status_codes",
                    ["router_name", "scraped_at"], postgresql_include=["code", "count"])
    op.create_index("ix_traefik_status_codes_scraped", "traefik_status_codes", ["scraped_at"])


def downgrade() -> None:
    op.drop_index("ix_traefik_status_codes_scraped", "traefik_status_codes")
    op.drop_index("ix_traefik_status_codes_router_scraped", "traefik_status_codes")
    op.drop_table("traefik_status_codes")