import asyncio
import json
import os
import tempfile
from urllib.parse import urlencode
from uuid import UUID

from fastapi import APIRouter, Depends, File, Form, HTTPException, Query, Request, UploadFile
import httpx
import config_env
from typing import Any, Dict, List, Optional

from schemas.reslevis import (
    BuildingItem,
    FloorItem,
    ZoneItem,
    ZoneAreaDefinitionItem,
    GatewayItem,
    TrackerItem,
    OperatorItem,
    SubjectItem,
    AlarmItem,
    AlarmCoreItem,
    AlarmStatusUpdateItem,
    TrackItem,
    TrackHistoryItem,
    TrackerZoneItem,
    SettingItem,
    GuiConfigItem,
    UserPreferencesItem,
    UserPreferencesUpdateItem,
    FloorMapUploadResponseItem,
    CoreSettingsItem,
    CoreSettingsUpdateItem,
)

from logica_reslevis.gateway import GatewayJsonRepository
from logica_reslevis.building import BuildingJsonRepository
from logica_reslevis.floor import FloorJsonRepository
from logica_reslevis.zone import ZoneJsonRepository
from logica_reslevis.zone_area_definition import ZoneAreaDefinitionJsonRepository
from logica_reslevis.tracker import TrackerJsonRepository
from logica_reslevis.operator import OperatorJsonRepository
from logica_reslevis.setting import SettingJsonRepository
from logica_reslevis.gui_config import GuiConfigJsonRepository
from logica_reslevis.user_preferences import UserPreferencesJsonRepository
from logica_reslevis.subject import SubjectJsonRepository
from logica_reslevis.alarm import AlarmJsonRepository
from logica_reslevis.track import TrackJsonRepository
from logica_reslevis.tracker_zone import TrackerZoneJsonRepository
from logica_reslevis.tracker_mode import get_mode_aware_trackers

from security import get_current_user

#CORE SYNC
CORE_BASE_URL = config_env.CORE_API_URL.rstrip("/")
ALERTS_CORE_BASE_URL = "http://localhost:1902"
TRACKS_CORE_BASE_URL = "http://localhost:1902"
SETTINGS_CORE_BASE_URL = "http://127.0.0.1:1902"
CORE_TIMEOUT = 2.0  # secondi
PNG_SIGNATURE = b"\x89PNG\r\n\x1a\n"

async def sync_core_get(request: Request) -> None:
    if request.method != "GET":
        return

    sync = CORE_GET_SYNC.get(request.url.path)
    if sync is None:
        return
    repo, normalizer = sync

    try:
        async with httpx.AsyncClient(timeout=CORE_TIMEOUT) as client:
            resp = await client.get(
                f"{CORE_BASE_URL}{request.url.path}",
                params=request.query_params,
            )

        if 200 <= resp.status_code < 300:
            data = resp.json()
            if isinstance(data, list):
                if normalizer:
                    data = [normalizer(r) for r in data if isinstance(r, dict)]
                repo._write_all(data)  # aggiorna i file locali
    except (httpx.RequestError, ValueError):
        # CORE giù o risposta non valida -> uso il file locale
        pass


router = APIRouter(dependencies=[Depends(sync_core_get)])

gateway_repo = GatewayJsonRepository()
building_repo = BuildingJsonRepository()
floor_repo = FloorJsonRepository()
zone_repo = ZoneJsonRepository()
zone_area_definition_repo = ZoneAreaDefinitionJsonRepository()
tracker_repo = TrackerJsonRepository()
operator_repo = OperatorJsonRepository()
subject_repo = SubjectJsonRepository()
alarm_repo = AlarmJsonRepository()
track_repo = TrackJsonRepository()
tracker_zone_repo = TrackerZoneJsonRepository()
setting_repo = SettingJsonRepository()
gui_config_repo = GuiConfigJsonRepository()
user_preferences_repo = UserPreferencesJsonRepository()

def _none_if_empty(v):
    return None if v in ("", None, 0, "0") else v

def _str_or_none(v):
    if v in ("", None):
        return None
    if isinstance(v, (int, float, bool)):
        return str(v)
    return v

def _uuid_list(values):
    if values in ("", None):
        return []
    if isinstance(values, str):
        values = [v for v in values.split(",") if v]
    if isinstance(values, (list, tuple, set)):
        cleaned = []
        for v in values:
            if isinstance(v, dict):
                v = v.get("id") or v.get("uuid")
            if v in ("", None, 0, "0"):
                continue
            cleaned.append(v)
        return cleaned
    return [values] if values not in ("", None, 0, "0") else []

def _normalize_gateway(row: dict) -> dict:
    row = dict(row)
    row["floor"] = _none_if_empty(row.get("floor"))
    row["building"] = _none_if_empty(row.get("building"))
    return row

def _normalize_track(row: dict) -> dict:
    row = dict(row)
    row["ID"] = row.get("ID")
    row["gateway"] = _none_if_empty(row.get("gateway"))
    row["tracker"] = _none_if_empty(row.get("tracker"))
    row["subject"] = _none_if_empty(row.get("subject"))
    row["floor"] = _none_if_empty(row.get("floor"))
    row["building"] = _none_if_empty(row.get("building"))
    row["timestamp"] = _str_or_none(row.get("timestamp"))
    row["type"] = _str_or_none(row.get("type"))
    row["status"] = _str_or_none(row.get("status"))
    row["gatewayMac"] = _str_or_none(row.get("gatewayMac"))
    row["trackerMac"] = _str_or_none(row.get("trackerMac"))
    row["subjectName"] = _str_or_none(row.get("subjectName"))
    row["x"] = None if row.get("x") in ("", None) else row.get("x")
    row["y"] = None if row.get("y") in ("", None) else row.get("y")
    row["z"] = None if row.get("z") in ("", None) else row.get("z")
    # signal resta float o None
    row["signal"] = None if row.get("signal") in ("", None) else row.get("signal")
    return row

def _normalize_zone(row: dict) -> dict:
    row = dict(row)
    row["floor"] = _none_if_empty(row.get("floor"))
    row["building"] = _none_if_empty(row.get("building"))
    row["groups"] = _uuid_list(row.get("groups"))
    return row


def _uid_from_claims(claims: dict) -> str:
    uid = (
        claims.get("preferred_username")
        or claims.get("username")
        or claims.get("email")
        or claims.get("sub")
    )
    if not uid:
        raise HTTPException(status_code=401, detail="User identity not found in token")
    return str(uid)


def _uuid_or_none(value):
    if value in ("", None, 0, "0"):
        return None
    try:
        return str(UUID(str(value)))
    except (TypeError, ValueError, AttributeError):
        return None


def _operator_uuid_by_name(value):
    name = str(value).strip()
    if not name:
        return None

    try:
        rows = operator_repo.list()
    except Exception:
        return None

    target = name.lower()
    for row in rows:
        if not isinstance(row, dict):
            continue
        if str(row.get("name") or "").strip().lower() == target:
            return _uuid_or_none(row.get("id"))
    return None


def _normalize_alarm_core(row: dict) -> dict:
    row = dict(row)
    operator_raw = row.get("operator")
    operator_uuid = _uuid_or_none(operator_raw)

    if operator_uuid is None and operator_raw not in ("", None, 0, "0"):
        operator_uuid = _operator_uuid_by_name(operator_raw)
        if operator_uuid is None and not row.get("operatorName"):
            row["operatorName"] = str(operator_raw)

    row["operator"] = operator_uuid
    return row


def _floor_maps_index_path() -> str:
    return os.path.join(config_env.RESLEVIS_MAPS_DIR, "maps.json")


def _read_floor_maps_index() -> Dict[str, Any]:
    path = _floor_maps_index_path()
    if not os.path.isfile(path):
        return {"items": [], "count": 0}

    try:
        with open(path, "r", encoding="utf-8") as fp:
            data = json.load(fp)
    except (OSError, ValueError):
        return {"items": [], "count": 0}

    if not isinstance(data, dict):
        return {"items": [], "count": 0}

    items = data.get("items")
    if not isinstance(items, list):
        items = []
    return {"items": items, "count": len(items)}


def _write_floor_maps_index(index: Dict[str, Any]) -> None:
    maps_dir = config_env.RESLEVIS_MAPS_DIR
    os.makedirs(maps_dir, exist_ok=True)

    index["count"] = len(index.get("items") or [])
    payload = json.dumps(index, ensure_ascii=False, indent=2)

    temp_name = None
    try:
        with tempfile.NamedTemporaryFile("w", dir=maps_dir, delete=False, encoding="utf-8") as tmp:
            tmp.write(payload)
            tmp.flush()
            os.fsync(tmp.fileno())
            temp_name = tmp.name

        os.replace(temp_name, _floor_maps_index_path())
        try:
            os.chmod(_floor_maps_index_path(), 0o664)
        except OSError:
            pass
    except OSError as exc:
        if temp_name and os.path.exists(temp_name):
            try:
                os.remove(temp_name)
            except OSError:
                pass
        raise HTTPException(status_code=500, detail="Unable to update maps.json") from exc


def _same_floor(row: Dict[str, Any], floor: int) -> bool:
    try:
        return int(row.get("floor")) == floor
    except (TypeError, ValueError):
        return False


def _floor_sort_key(row: Dict[str, Any]) -> int:
    try:
        return int(row.get("floor"))
    except (TypeError, ValueError):
        return 0


def _upsert_floor_map_record(floor: int, name: str, metadata: Dict[str, Any]) -> None:
    index = _read_floor_maps_index()
    item = {
        "floor": floor,
        "name": name,
        "mime_type": "image/png",
        "metadata": metadata,
    }

    items = [r for r in index["items"] if isinstance(r, dict) and not _same_floor(r, floor)]
    items.append(item)
    items.sort(key=_floor_sort_key)
    index["items"] = items
    _write_floor_maps_index(index)


def _public_map_path(name: str) -> str:
    public_path = config_env.RESLEVIS_MAPS_PUBLIC_PATH
    return f"{public_path}/{name}" if public_path else name


def _validate_map_target(maps_dir: str, name: str) -> str:
    maps_dir_abs = os.path.abspath(maps_dir)
    target_path = os.path.abspath(os.path.join(maps_dir_abs, name))
    if os.path.commonpath([maps_dir_abs, target_path]) != maps_dir_abs:
        raise HTTPException(status_code=400, detail="Invalid map filename")
    return target_path


async def _write_upload_file(upload: UploadFile, target_path: str) -> None:
    maps_dir = os.path.dirname(target_path)
    temp_name = None
    try:
        with tempfile.NamedTemporaryFile("wb", dir=maps_dir, delete=False) as tmp:
            temp_name = tmp.name
            while True:
                chunk = await upload.read(1024 * 1024)
                if not chunk:
                    break
                tmp.write(chunk)
            tmp.flush()
            os.fsync(tmp.fileno())

        os.replace(temp_name, target_path)
        try:
            os.chmod(target_path, 0o664)
        except OSError:
            pass
    except OSError as exc:
        if temp_name and os.path.exists(temp_name):
            try:
                os.remove(temp_name)
            except OSError:
                pass
        raise HTTPException(status_code=500, detail="Unable to save floor map") from exc

CORE_GET_SYNC = {
    "/reslevis/getGateways": (gateway_repo, _normalize_gateway),
    "/reslevis/getZones": (zone_repo, _normalize_zone),
}


async def _fetch_tracks_for_tracker(
    tracker_id: str,
    params: Optional[dict] = None,
) -> List[dict]:
    query_string = urlencode(params or {})
    url = f"{TRACKS_CORE_BASE_URL}/reslevis/getTracks/{tracker_id}"
    if query_string:
        url = f"{url}?{query_string}"

    process = await asyncio.create_subprocess_exec(
        "curl",
        "-sS",
        "-X",
        "GET",
        url,
        stdout=asyncio.subprocess.PIPE,
        stderr=asyncio.subprocess.PIPE,
    )
    stdout, stderr = await process.communicate()

    if process.returncode != 0:
        detail = (stderr or stdout).decode("utf-8", errors="replace").strip() or "CORE curl request failed"
        raise HTTPException(status_code=502, detail=detail)

    try:
        payload = json.loads(stdout.decode("utf-8"))
    except ValueError as exc:
        raise HTTPException(status_code=502, detail="Invalid CORE response") from exc

    if not isinstance(payload, list):
        raise HTTPException(status_code=502, detail="Unexpected CORE response type")

    return [_normalize_track(row) for row in payload if isinstance(row, dict)]


@router.get(
    "/getGateways",
    response_model=List[GatewayItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getGateways():
    return gateway_repo.list()


@router.post("/postGateway", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postGateway(item: GatewayItem):
    gateway_repo.add(item)
    return {"message": "OK"}


@router.put("/updateGateway", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateGateway(item: GatewayItem):
    gateway_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeGateway/{gateway_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeGateway(gateway_id: str):
    gateway_repo.remove(gateway_id)
    return {"message": "OK"}


@router.get(
    "/getBuildings",
    response_model=List[BuildingItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getBuildings():
    return building_repo.list()


@router.post("/postBuilding", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postBuilding(item: BuildingItem):
    building_repo.add(item)
    return {"message": "OK"}


@router.put("/updateBuilding", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateBuilding(item: BuildingItem):
    building_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeBuilding/{building_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeBuilding(building_id: str):
    building_repo.remove(building_id)
    return {"message": "OK"}


@router.get(
    "/getFloors",
    response_model=List[FloorItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)

def getFloors():
    return floor_repo.list()

@router.post("/postFloor", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postFloor(item: FloorItem):
    floor_repo.add(item)
    return {"message": "OK"}


@router.put("/updateFloor", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateFloor(item: FloorItem):
    floor_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeFloor/{floor_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeFloor(floor_id: str):
    floor_repo.remove(floor_id)
    return {"message": "OK"}


@router.get(
    "/getZones",
    response_model=List[ZoneItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getZones():
    return zone_repo.list()


@router.post("/postZone", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postZone(item: ZoneItem):
    zone_repo.add(item)
    return {"message": "OK"}


@router.put("/updateZone", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateZone(item: ZoneItem):
    zone_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeZone/{zone_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeZone(zone_id: str):
    zone_repo.remove(zone_id)
    return {"message": "OK"}


@router.get(
    "/getZoneAreaDefinitions",
    response_model=List[ZoneAreaDefinitionItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getZoneAreaDefinitions(UUID: str | None = None):
    return zone_area_definition_repo.list(UUID)


@router.post("/postZoneAreaDefinition", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postZoneAreaDefinition(item: ZoneAreaDefinitionItem):
    zone_area_definition_repo.add(item)
    return {"message": "OK"}


@router.put("/updateZoneAreaDefinition", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateZoneAreaDefinition(item: ZoneAreaDefinitionItem):
    zone_area_definition_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeZoneAreaDefinition/{zone_area_definition_uuid}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeZoneAreaDefinition(zone_area_definition_uuid: str):
    zone_area_definition_repo.remove(zone_area_definition_uuid)
    return {"message": "OK"}


@router.get(
    "/getTrackers",
    response_model=List[TrackerItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def getTrackers():
    return await get_mode_aware_trackers(
        tracker_repo,
        SETTINGS_CORE_BASE_URL,
        config_env.BLE_AI_INFER_CSV,
        CORE_TIMEOUT,
    )


@router.post("/postTracker", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postTracker(item: TrackerItem):
    tracker_repo.add(item)
    return {"message": "OK"}


@router.put("/updateTracker", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateTracker(item: TrackerItem):
    tracker_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeTracker/{tracker_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeTracker(tracker_id: str):
    tracker_repo.remove(tracker_id)
    return {"message": "OK"}


@router.get(
    "/getTrackerZones",
    response_model=List[TrackerZoneItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getTrackerZones():
    return tracker_zone_repo.list()


@router.post("/postTrackerZone", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postTrackerZone(item: TrackerZoneItem):
    tracker_zone_repo.add(item)
    return {"message": "OK"}


@router.put("/updateTrackerZone", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateTrackerZone(item: TrackerZoneItem):
    tracker_zone_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeTrackerZone/{tracker_zone_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeTrackerZone(tracker_zone_id: str):
    tracker_zone_repo.remove(tracker_zone_id)
    return {"message": "OK"}

@router.get(
    "/getTracks",
    response_model=List[TrackHistoryItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def getTracks(
    tracker_id: str = Query(..., alias="id"),
    limit: Optional[int] = Query(None, ge=1),
    from_: Optional[str] = Query(None, alias="from"),
    to: Optional[str] = Query(None),
):
    params = {}
    if limit is not None:
        params["limit"] = limit
    if from_:
        params["from"] = from_
    if to:
        params["to"] = to

    return await _fetch_tracks_for_tracker(tracker_id, params)


@router.get(
    "/getTracks/{tracker_id}",
    response_model=List[TrackHistoryItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def getTrack(
    tracker_id: str,
    limit: Optional[int] = Query(None, ge=1),
    from_: Optional[str] = Query(None, alias="from"),
    to: Optional[str] = Query(None),
):
    params = {}
    if limit is not None:
        params["limit"] = limit
    if from_:
        params["from"] = from_
    if to:
        params["to"] = to

    return await _fetch_tracks_for_tracker(tracker_id, params)


@router.post("/postTrack", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postTrack(item: TrackItem):
    track_repo.add(item)
    return {"message": "OK"}


@router.put("/updateTrack", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateTrack(item: TrackItem):
    track_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeTrack/{track_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeTrack(track_id: str):
    track_repo.remove(track_id)
    return {"message": "OK"}


@router.get(
    "/getAlarms",
    response_model=List[AlarmCoreItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def getAlarms():
    async with httpx.AsyncClient(timeout=CORE_TIMEOUT) as client:
        resp = await client.get(f"{ALERTS_CORE_BASE_URL}/reslevis/alerts")

    if resp.status_code >= 400:
        detail = resp.text.strip() or "CORE alerts request failed"
        raise HTTPException(status_code=resp.status_code, detail=detail)

    try:
        payload = resp.json()
    except ValueError as exc:
        raise HTTPException(status_code=502, detail="Invalid CORE response") from exc

    if not isinstance(payload, list):
        raise HTTPException(status_code=502, detail="Unexpected CORE response type")

    return [_normalize_alarm_core(row) for row in payload if isinstance(row, dict)]


@router.put(
    "/updateAlarm",
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def updateAlarm(item: AlarmStatusUpdateItem):
    async with httpx.AsyncClient(timeout=CORE_TIMEOUT) as client:
        resp = await client.patch(
            f"{ALERTS_CORE_BASE_URL}/reslevis/alerts/{item.id}",
            json={"status": item.status},
        )

    if resp.status_code >= 400:
        detail = resp.text.strip() or "CORE alert update failed"
        raise HTTPException(status_code=resp.status_code, detail=detail)

    if not resp.content:
        return {"message": "OK"}

    try:
        return resp.json()
    except ValueError:
        return {"message": "OK"}


@router.get(
    "/getOperators",
    response_model=List[OperatorItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getOperators():
    return operator_repo.list()


@router.post("/postOperator", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postOperator(item: OperatorItem):
    operator_repo.add(item)
    return {"message": "OK"}


@router.put("/updateOperator", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateOperator(item: OperatorItem):
    operator_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeOperator/{operator_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeOperator(operator_id: str):
    operator_repo.remove(operator_id)
    return {"message": "OK"}


@router.get(
    "/getSubjects",
    response_model=List[SubjectItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getSubjects():
    return subject_repo.list()


@router.post("/postSubject", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postSubject(item: SubjectItem):
    subject_repo.add(item)
    return {"message": "OK"}


@router.put("/updateSubject", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateSubject(item: SubjectItem):
    subject_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeSubject/{subject_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeSubject(subject_id: str):
    subject_repo.remove(subject_id)
    return {"message": "OK"}


@router.get(
    "/getSettings",
    response_model=List[SettingItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getSettings():
    return setting_repo.list()


@router.post("/postSetting", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postSetting(item: SettingItem):
    setting_repo.add(item)
    return {"message": "OK"}


@router.put("/updateSetting", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateSetting(item: SettingItem):
    setting_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeSetting/{setting_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeSetting(setting_id: str):
    setting_repo.remove(setting_id)
    return {"message": "OK"}


@router.get(
    "/getGuiConfigs",
    response_model=List[GuiConfigItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getGuiConfigs():
    return gui_config_repo.list()


@router.get(
    "/getUserPreferences",
    response_model=UserPreferencesItem,
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def getUserPreferences(current_user: dict = Depends(get_current_user)):
    uid = _uid_from_claims(current_user)
    return user_preferences_repo.get(uid)


@router.put(
    "/updateUserPreferences",
    response_model=UserPreferencesItem,
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
def updateUserPreferences(
    item: UserPreferencesUpdateItem,
    current_user: dict = Depends(get_current_user),
):
    uid = _uid_from_claims(current_user)
    return user_preferences_repo.update(uid, item)


@router.post(
    "/uploadFloorMap",
    response_model=FloorMapUploadResponseItem,
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def uploadFloorMap(
    floor: int = Form(...),
    file: UploadFile = File(...),
    pixel_ratio: float = Form(1),
    calibrated: bool = Form(False),
    origin_x: int = Form(0),
    origin_y: int = Form(0),
    grid_size: int = Form(50),
):
    if pixel_ratio <= 0:
        raise HTTPException(status_code=400, detail="pixel_ratio must be greater than 0")
    if grid_size <= 0:
        raise HTTPException(status_code=400, detail="grid_size must be greater than 0")

    content_type = (file.content_type or "").split(";")[0].strip().lower()
    if content_type and content_type != "image/png":
        raise HTTPException(status_code=400, detail="Only PNG files are allowed")

    signature = await file.read(len(PNG_SIGNATURE))
    if signature != PNG_SIGNATURE:
        raise HTTPException(status_code=400, detail="Only PNG files are allowed")
    await file.seek(0)

    maps_dir = config_env.RESLEVIS_MAPS_DIR
    os.makedirs(maps_dir, exist_ok=True)

    name = f"floor_{floor}.png"
    target_path = _validate_map_target(maps_dir, name)
    await _write_upload_file(file, target_path)

    metadata = {
        "pixel_ratio": pixel_ratio,
        "calibrated": calibrated,
        "origin": [origin_x, origin_y],
        "grid_size": grid_size,
    }
    _upsert_floor_map_record(floor, name, metadata)

    return {
        "floor": floor,
        "name": name,
        "path": _public_map_path(name),
        "mime_type": "image/png",
        "metadata": metadata,
    }


@router.post("/postGuiConfig", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def postGuiConfig(item: GuiConfigItem):
    gui_config_repo.add(item)
    return {"message": "OK"}


@router.put("/updateGuiConfig", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def updateGuiConfig(item: GuiConfigItem):
    gui_config_repo.update(item)
    return {"message": "OK"}


@router.delete("/removeGuiConfig/{gui_config_id}", tags=["Reslevis"], dependencies=[Depends(get_current_user)])
def removeGuiConfig(gui_config_id: str):
    gui_config_repo.remove(gui_config_id)
    return {"message": "OK"}


@router.get(
    "/getCoreSettings",
    response_model=List[CoreSettingsItem],
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def getCoreSettings():
    async with httpx.AsyncClient(timeout=CORE_TIMEOUT) as client:
        resp = await client.get(f"{SETTINGS_CORE_BASE_URL}/reslevis/settings")

    if resp.status_code >= 400:
        detail = resp.text.strip() or "CORE settings request failed"
        raise HTTPException(status_code=resp.status_code, detail=detail)

    try:
        payload = resp.json()
    except ValueError as exc:
        raise HTTPException(status_code=502, detail="Invalid CORE response") from exc

    if not isinstance(payload, list):
        raise HTTPException(status_code=502, detail="Unexpected CORE response type")

    return payload


@router.put(
    "/updateCoreSettings",
    tags=["Reslevis"],
    dependencies=[Depends(get_current_user)],
)
async def updateCoreSettings(item: CoreSettingsUpdateItem):
    async with httpx.AsyncClient(timeout=CORE_TIMEOUT) as client:
        resp = await client.patch(
            f"{SETTINGS_CORE_BASE_URL}/reslevis/settings",
            json=item.model_dump(exclude_none=True),
        )

    if resp.status_code >= 400:
        detail = resp.text.strip() or "CORE settings update failed"
        raise HTTPException(status_code=resp.status_code, detail=detail)

    if not resp.content:
        return {"message": "OK"}

    try:
        return resp.json()
    except ValueError:
        return {"message": "OK"}