"""add audit_log table

Revision ID: c3d4e5f6a7b8
Revises: b2c3d4e5f6a7
Create Date: 2026-09-26 11:30:00.000000

"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op
from sqlalchemy.dialects import postgresql

# revision identifiers, used by Alembic.
revision: str = "c3d4e5f6a7b8"
down_revision: str | None = "b2c3d4e5f6a7"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "audit_log",
        sa.Column(
            "id", postgresql.UUID(as_uuid=True), primary_key=True, server_default=sa.text("gen_random_uuid()")
        ),
        sa.Column(
            "lab_id",
            postgresql.UUID(as_uuid=True),
            sa.ForeignKey("lab.id", ondelete="CASCADE"),
            nullable=False,
        ),
        sa.Column("action", sa.String(length=100), nullable=False),
        sa.Column("category", sa.String(length=50), nullable=False, server_default="ADMIN"),
        sa.Column("severity", sa.String(length=20), nullable=False, server_default="INFO"),
        sa.Column("actor_id", postgresql.UUID(as_uuid=True), nullable=True),
        sa.Column("actor_name", sa.String(length=200), nullable=False, server_default="System Administrator"),
        sa.Column("actor_role", sa.String(length=50), nullable=False, server_default="owner"),
        sa.Column("target_type", sa.String(length=100), nullable=True),
        sa.Column("target_id", sa.String(length=100), nullable=True),
        sa.Column("description", sa.Text(), nullable=False),
        sa.Column("ip_address", sa.String(length=50), nullable=True, server_default="127.0.0.1"),
        sa.Column("details", postgresql.JSONB(astext_type=sa.Text()), nullable=True),
        sa.Column(
            "created_at", postgresql.TIMESTAMP(timezone=True), nullable=False, server_default=sa.func.now()
        ),
    )
    op.create_index("ix_audit_log_lab_id", "audit_log", ["lab_id"])
    op.create_index("ix_audit_log_action", "audit_log", ["action"])
    op.create_index("ix_audit_log_category", "audit_log", ["category"])
    op.create_index("ix_audit_log_severity", "audit_log", ["severity"])
    op.create_index("ix_audit_log_created_at", "audit_log", ["created_at"])


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