"""create devices table

Revision ID: 367021e73a20
Revises:
Create Date: 2026-09-10

"""

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "367021e73a20"
down_revision: str | None = None
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "devices",
        sa.Column("id", sa.Integer(), autoincrement=True, nullable=False),
        sa.Column("name", sa.String(length=128), nullable=False),
        sa.Column("serial", sa.String(length=64), nullable=False),
        sa.Column(
            "status",
            sa.Enum(
                "active",
                "inactive",
                "maintenance",
                name="devicestatus",
                native_enum=False,
                length=32,
            ),
            server_default="active",
            nullable=False,
        ),
        sa.Column("description", sa.String(length=512), nullable=True),
        # Plain CURRENT_TIMESTAMP rather than the parenthesised form autogenerate
        # emits under SQLite: this spelling is valid on both backends.
        sa.Column(
            "created_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("CURRENT_TIMESTAMP"),
            nullable=False,
        ),
        sa.Column(
            "updated_at",
            sa.DateTime(timezone=True),
            server_default=sa.text("CURRENT_TIMESTAMP"),
            nullable=False,
        ),
        sa.PrimaryKeyConstraint("id", name=op.f("pk_devices")),
        sa.UniqueConstraint("serial", name=op.f("uq_devices_serial")),
        mysql_engine="InnoDB",
        mysql_charset="utf8mb4",
        mysql_collate="utf8mb4_0900_ai_ci",
    )
    op.create_index(op.f("ix_devices_name"), "devices", ["name"], unique=False)


def downgrade() -> None:
    op.drop_index(op.f("ix_devices_name"), table_name="devices")
    op.drop_table("devices")