"""User settings endpoints, including scrobbling configuration.

Settings are per-caller and created lazily, so a first read returns defaults.
The scrobbler session key is write-only — accepted on ``PUT`` but never returned.
"""

from fastapi import APIRouter

from app.api.deps import CurrentUser, UserSettingsServiceDep
from app.api.schemas.settings import (
    ScrobblingOut,
    ScrobblingUpdate,
    SettingsOut,
    SettingsUpdate,
)
from app.domain.entities.settings import UserSettings

router = APIRouter(prefix="/settings", tags=["settings"])


def _to_settings_out(settings: UserSettings) -> SettingsOut:
    return SettingsOut(theme=settings.theme, stream_quality=settings.stream_quality)


def _to_scrobbling_out(settings: UserSettings) -> ScrobblingOut:
    return ScrobblingOut(
        enabled=settings.scrobble_enabled,
        provider=settings.scrobble_provider,
        username=settings.scrobble_username,
        configured=settings.scrobble_session_key_enc is not None,
    )


@router.get("")
async def get_settings(user: CurrentUser, service: UserSettingsServiceDep) -> SettingsOut:
    return _to_settings_out(await service.get(user.id))


@router.patch("")
async def update_settings(
    body: SettingsUpdate, user: CurrentUser, service: UserSettingsServiceDep
) -> SettingsOut:
    settings = await service.update_general(
        user.id, theme=body.theme, stream_quality=body.stream_quality
    )
    return _to_settings_out(settings)


@router.get("/scrobbling")
async def get_scrobbling_settings(
    user: CurrentUser, service: UserSettingsServiceDep
) -> ScrobblingOut:
    return _to_scrobbling_out(await service.get(user.id))


@router.put("/scrobbling")
async def set_scrobbling_settings(
    body: ScrobblingUpdate, user: CurrentUser, service: UserSettingsServiceDep
) -> ScrobblingOut:
    settings = await service.set_scrobbling(
        user.id,
        enabled=body.enabled,
        provider=body.provider,
        username=body.username,
        session_key=body.session_key,
    )
    return _to_scrobbling_out(settings)