"""user_settings: per-user preferences + scrobbling config

Revision ID: 20260728_user_settings
Revises: dc126696f5a6
Create Date: 2026-07-28 10:00:00.000000

Adds the ``user_settings`` table (1:1 with ``users``, PK = user_id): general
preferences (theme, stream quality) plus scrobbling config. The scrobbler
session key is stored Fernet-encrypted, never in plaintext.
"""

from __future__ import annotations

from collections.abc import Sequence

import sqlalchemy as sa
from alembic import op

revision: str = "20260728_user_settings"
down_revision: str | None = "dc126696f5a6"
branch_labels: str | Sequence[str] | None = None
depends_on: str | Sequence[str] | None = None


def upgrade() -> None:
    op.create_table(
        "user_settings",
        sa.Column("user_id", sa.Uuid(), nullable=False),
        sa.Column("theme", sa.String(length=16), nullable=False),
        sa.Column("stream_quality", sa.String(length=16), nullable=False),
        sa.Column("scrobble_enabled", sa.Boolean(), nullable=False),
        sa.Column("scrobble_provider", sa.String(length=16), nullable=True),
        sa.Column("scrobble_username", sa.String(length=255), nullable=True),
        sa.Column("scrobble_session_key_enc", sa.String(length=512), 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(
            ["user_id"],
            ["users.id"],
            name=op.f("fk_user_settings_user_id_users"),
            ondelete="CASCADE",
        ),
        sa.PrimaryKeyConstraint("user_id", name=op.f("pk_user_settings")),
    )


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