"""drop user_sessions (stateless JWT sessions)

Revision ID: c4d8f2a1e6b9
Revises: b7e2d4a1c9f3
Create Date: 2026-09-28 00:00:00.000000

Sessions are stateless HS256 JWTs in the HttpOnly cookie (see
app/auth/service.py mint_session_token). All sessions are invalidated
at deploy — users re-login via magic link.
"""

from collections.abc import Sequence

import sqlalchemy as sa
import sqlmodel
from alembic import op

# revision identifiers, used by Alembic.
revision: str = "c4d8f2a1e6b9"
down_revision: str | Sequence[str] | None = "b7e2d4a1c9f3"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    """Upgrade schema."""
    op.drop_index(op.f("ix_user_sessions_user_id"), table_name="user_sessions")
    op.drop_table("user_sessions")


def downgrade() -> None:
    """Downgrade schema."""
    op.create_table(
        "user_sessions",
        sa.Column("id", sqlmodel.sql.sqltypes.AutoString(length=128), nullable=False),
        sa.Column("user_id", sa.Uuid(), nullable=False),
        sa.Column("created_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("expires_at", sa.DateTime(timezone=True), nullable=True),
        sa.Column("revoked_at", sa.DateTime(timezone=True), nullable=True),
        sa.ForeignKeyConstraint(
            ["user_id"],
            ["users.id"],
        ),
        sa.PrimaryKeyConstraint("id"),
    )
    op.create_index(op.f("ix_user_sessions_user_id"), "user_sessions", ["user_id"], unique=False)