"""add domain dns snapshots

Revision ID: 20260520_0001
Revises:
Create Date: 2026-05-20 00:00:00.000000+00:00
"""
from __future__ import annotations

from alembic import op
import sqlalchemy as sa

revision = "20260520_0001"
down_revision = None
branch_labels = None
depends_on = None


def _domain_dns_snapshots() -> sa.Table:
    return sa.Table(
        "domain_dns_snapshots",
        sa.MetaData(),
        sa.Column("id", sa.Integer(), primary_key=True),
        sa.Column("domain", sa.String(length=255), nullable=False),
        sa.Column("checked_at", sa.DateTime(timezone=True), nullable=False),
        sa.Column("dmarc_record", sa.Text(), nullable=True),
        sa.Column("dmarc_policy_p", sa.String(length=40), nullable=True),
        sa.Column("dmarc_policy_sp", sa.String(length=40), nullable=True),
        sa.Column("dmarc_policy_pct", sa.Integer(), nullable=True),
        sa.Column("dmarc_adkim", sa.String(length=20), nullable=True),
        sa.Column("dmarc_aspf", sa.String(length=20), nullable=True),
        sa.Column("dmarc_fo", sa.String(length=80), nullable=True),
        sa.Column("dmarc_rua", sa.Text(), nullable=True),
        sa.Column("dmarc_ruf", sa.Text(), nullable=True),
        sa.Column("spf_record", sa.Text(), nullable=True),
        sa.Column("spf_all", sa.String(length=20), nullable=True),
        sa.Column("spf_includes_json", sa.Text(), nullable=False, server_default="[]"),
        sa.Column("dkim_records_json", sa.Text(), nullable=False, server_default="[]"),
        sa.Column("mx_records_json", sa.Text(), nullable=False, server_default="[]"),
        sa.Column("errors_json", sa.Text(), nullable=False, server_default="[]"),
    )


def upgrade() -> None:
    bind = op.get_bind()
    table = _domain_dns_snapshots()
    table.create(bind=bind, checkfirst=True)
    op.create_index(
        op.f("ix_domain_dns_snapshots_checked_at"),
        "domain_dns_snapshots",
        ["checked_at"],
        unique=False,
        if_not_exists=True,
    )
    op.create_index(
        op.f("ix_domain_dns_snapshots_domain"),
        "domain_dns_snapshots",
        ["domain"],
        unique=False,
        if_not_exists=True,
    )


def downgrade() -> None:
    op.drop_index(op.f("ix_domain_dns_snapshots_domain"), table_name="domain_dns_snapshots", if_exists=True)
    op.drop_index(op.f("ix_domain_dns_snapshots_checked_at"), table_name="domain_dns_snapshots", if_exists=True)
    _domain_dns_snapshots().drop(bind=op.get_bind(), checkfirst=True)