"""init auth models

Revision ID: 20260425_0001
Revises:
Create Date: 2026-04-25 23:55:00
"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "20260425_0001"
down_revision: str | None = None
branch_labels: Sequence[str] | None = None
depends_on: Sequence[str] | None = None


def upgrade() -> None:
    if not _has_table("auth_user"):
        op.create_table(
            "auth_user",
            sa.Column("username", sa.String(length=128), nullable=False),
            sa.Column("display_name", sa.String(length=128), nullable=True),
            sa.Column("email", sa.String(length=256), nullable=True),
            sa.Column("status", sa.String(length=32), nullable=False),
            sa.Column("metadata_json", sa.JSON(), nullable=False),
            sa.Column("last_login_time", sa.DateTime(), nullable=True),
            sa.Column("id", sa.String(length=36), nullable=False),
            sa.Column("created_by", sa.String(length=36), nullable=True),
            sa.Column("updated_by", sa.String(length=36), nullable=True),
            sa.Column("created_time", sa.DateTime(), nullable=False),
            sa.Column("updated_time", sa.DateTime(), nullable=False),
            sa.Column("deleted_time", sa.DateTime(), nullable=True),
            sa.Column("version", sa.Integer(), nullable=False),
            sa.PrimaryKeyConstraint("id"))
    if not _has_table("auth_role"):
        op.create_table(
            "auth_role",
            sa.Column("code", sa.String(length=128), nullable=False),
            sa.Column("name", sa.String(length=128), nullable=False),
            sa.Column("description", sa.Text(), nullable=True),
            sa.Column("status", sa.String(length=32), nullable=False),
            sa.Column("permissions_json", sa.JSON(), nullable=False),
            sa.Column("id", sa.String(length=36), nullable=False),
            sa.Column("created_by", sa.String(length=36), nullable=True),
            sa.Column("updated_by", sa.String(length=36), nullable=True),
            sa.Column("created_time", sa.DateTime(), nullable=False),
            sa.Column("updated_time", sa.DateTime(), nullable=False),
            sa.Column("deleted_time", sa.DateTime(), nullable=True),
            sa.Column("version", sa.Integer(), nullable=False),
            sa.PrimaryKeyConstraint("id"))
    if not _has_table("auth_role_assignment"):
        op.create_table(
            "auth_role_assignment",
            sa.Column("user_id", sa.String(length=36), nullable=False),
            sa.Column("role_id", sa.String(length=36), nullable=False),
            sa.Column("status", sa.String(length=32), nullable=False),
            sa.Column("scope_type", sa.String(length=64), nullable=True),
            sa.Column("scope_id", sa.String(length=64), nullable=True),
            sa.Column("expires_time", sa.DateTime(), nullable=True),
            sa.Column("id", sa.String(length=36), nullable=False),
            sa.Column("created_by", sa.String(length=36), nullable=True),
            sa.Column("updated_by", sa.String(length=36), nullable=True),
            sa.Column("created_time", sa.DateTime(), nullable=False),
            sa.Column("updated_time", sa.DateTime(), nullable=False),
            sa.Column("deleted_time", sa.DateTime(), nullable=True),
            sa.Column("version", sa.Integer(), nullable=False),
            sa.PrimaryKeyConstraint("id"))
    for table_name in ("auth_user", "auth_role", "auth_role_assignment"):
        _create_index_if_missing(f"ix_{table_name}_status", table_name, ["status"])
    _create_index_if_missing("ix_auth_user_username", "auth_user", ["username"])
    _create_index_if_missing("ix_auth_user_email", "auth_user", ["email"])
    _create_index_if_missing("ix_auth_role_code", "auth_role", ["code"])
    _create_index_if_missing("ix_auth_role_assignment_user_id", "auth_role_assignment", ["user_id"])
    _create_index_if_missing("ix_auth_role_assignment_role_id", "auth_role_assignment", ["role_id"])
    _create_index_if_missing(
        "ix_auth_role_assignment_scope_type",
        "auth_role_assignment",
        ["scope_type"])
    _create_index_if_missing(
        "ix_auth_role_assignment_scope_id",
        "auth_role_assignment",
        ["scope_id"])
    _create_index_if_missing(
        "ix_auth_role_assignment_expires_time",
        "auth_role_assignment",
        ["expires_time"])


def downgrade() -> None:
    op.drop_table("auth_role_assignment")
    op.drop_table("auth_role")
    op.drop_table("auth_user")


def _has_table(table_name: str) -> bool:
    return sa.inspect(op.get_bind()).has_table(table_name)


def _create_index_if_missing(index_name: str, table_name: str, columns: list[str]) -> None:
    existing_index_names = {
        index["name"]
        for index in sa.inspect(op.get_bind()).get_indexes(table_name)
    }
    if index_name not in existing_index_names:
        op.create_index(index_name, table_name, columns)