"""
Router: zdjęcia profilowe użytkowników.
Ścieżka na dysku: {files_base_dir}/user_files/profile/<uuid>.ext

Endpointy:
  POST   /user_files/profile/upload          – przesyłanie zdjęcia profilowego
  GET    /user_files/profile/file/{filename} – pobieranie zdjęcia profilowego
  DELETE /user_files/profile/file/{filename} – usuwanie zdjęcia profilowego
"""
from __future__ import annotations

import mimetypes

from fastapi import APIRouter, Depends, HTTPException, UploadFile, File
from fastapi.responses import FileResponse

from ..auth import require_api_key
from ..storage import save_file, get_stored_file_path, delete_stored_file

router = APIRouter(prefix="/user_files/profile", tags=["user_profile"])

_SUBFOLDER = "user_files/profile"

# Dla zdjęć profilowych akceptujemy tylko obrazy
_ALLOWED_IMAGE_TYPES = frozenset(
    {"image/jpeg", "image/png", "image/gif", "image/webp"}
)


@router.post("/upload", summary="Prześlij zdjęcie profilowe")
async def upload_profile_picture(
    file: UploadFile = File(...),
    _key: str = Depends(require_api_key),
):
    content_type = (file.content_type or "").split(";")[0].strip()
    if content_type not in _ALLOWED_IMAGE_TYPES:
        raise HTTPException(
            status_code=415,
            detail=f"Zdjęcie profilowe musi być obrazem (JPEG/PNG/GIF/WEBP). Otrzymano: {content_type}",
        )
    result = await save_file(
        file,
        _SUBFOLDER,
        convert_image_to_webp=True,
        image_max_side=512,
        image_quality=82,
    )
    return {"success": True, "data": result}


@router.get("/file/{filename}", summary="Pobierz zdjęcie profilowe")
async def serve_profile_picture(
    filename: str,
    _key: str = Depends(require_api_key),
):
    file_path = get_stored_file_path(_SUBFOLDER, filename)
    mime = mimetypes.guess_type(str(file_path))[0] or "image/jpeg"
    return FileResponse(
        path=str(file_path),
        media_type=mime,
        headers={"Content-Disposition": f'inline; filename="{filename}"'},
    )


@router.delete("/file/{filename}", summary="Usuń zdjęcie profilowe")
async def delete_profile_picture(
    filename: str,
    _key: str = Depends(require_api_key),
):
    deleted = delete_stored_file(_SUBFOLDER, filename)
    return {"success": deleted}