from fastapi import APIRouter, Depends
from sqlalchemy.ext.asyncio import AsyncSession
from sqlalchemy import select
from datetime import datetime
from ..dependencies import get_db, get_current_user, require_admin
from ..models.user import User
from ..models.session import ServerSetting
from ..config import get_settings

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

DEFAULT_SETTINGS = {
    "autoMatchBooks": True,
    "autoMatchPodcasts": True,
    "matchSources": ["musicbrainz", "open_library", "google_books"],
    "podcastUpdateIntervalHours": 24,
    "coverAspectRatio": 1,
    "disableOpds": False,
    "logLevel": 2,
    "version": "2.4.0",
    "buildNumber": 1,
}


@router.get("")
async def get_settings_endpoint(
    current_user: User = Depends(get_current_user),
    db: AsyncSession = Depends(get_db),
):
    result = await db.execute(select(ServerSetting))
    rows = result.scalars().all()
    settings_dict = {**DEFAULT_SETTINGS}
    for row in rows:
        settings_dict[row.key] = row.value
    return settings_dict


@router.patch("")
async def update_settings(
    body: dict,
    admin: User = Depends(require_admin),
    db: AsyncSession = Depends(get_db),
):
    for key, value in body.items():
        result = await db.execute(select(ServerSetting).where(ServerSetting.key == key))
        setting = result.scalar_one_or_none()
        if setting:
            setting.value = value
            setting.updated_at = datetime.utcnow()
        else:
            db.add(ServerSetting(key=key, value=value))
    await db.commit()
    return {"success": True}