"""problems table

Revision ID: 002
Revises: 001
"""

from typing import Sequence, Union

import sqlalchemy as sa
from alembic import op

revision: str = "002"
down_revision: Union[str, None] = "001"
branch_labels: Union[str, Sequence[str], None] = None
depends_on: Union[str, Sequence[str], None] = None


def upgrade() -> None:
    op.create_table(
        "problems",
        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
        sa.Column("host_id", sa.Integer(), nullable=True),
        sa.Column("title", sa.String(length=256), nullable=False),
        sa.Column("summary", sa.Text(), nullable=False),
        sa.Column("severity", sa.String(length=16), nullable=False),
        sa.Column("status", sa.String(length=32), nullable=False, server_default="open"),
        sa.Column("rule_id", sa.String(length=64), nullable=True),
        sa.Column("created_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.Column("updated_at", sa.DateTime(timezone=True), server_default=sa.text("now()"), nullable=False),
        sa.ForeignKeyConstraint(["host_id"], ["hosts.id"]),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index("ix_problems_status", "problems", ["status"])
    op.create_index("ix_problems_severity", "problems", ["severity"])

    op.create_table(
        "problem_events",
        sa.Column("problem_id", sa.Integer(), nullable=False),
        sa.Column("event_id", sa.Integer(), nullable=False),
        sa.ForeignKeyConstraint(["event_id"], ["events.id"], ondelete="CASCADE"),
        sa.ForeignKeyConstraint(["problem_id"], ["problems.id"], ondelete="CASCADE"),
        sa.PrimaryKeyConstraint("problem_id", "event_id"),
    )


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