"""Admin settings — blocked image upload/management."""
import os

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

from ..auth import get_current_admin

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

BLOCKED_IMAGE_PATH = "/opt/kirastream/backend/static/blocked_image.jpg"
MAX_SIZE = 10 * 1024 * 1024  # 10 MB


@router.get("/blocked-image")
async def get_blocked_image(_=Depends(get_current_admin)):
    if not os.path.exists(BLOCKED_IMAGE_PATH):
        raise HTTPException(404, "No blocked image configured")
    return FileResponse(BLOCKED_IMAGE_PATH, media_type="image/jpeg")


@router.post("/blocked-image", status_code=201)
async def upload_blocked_image(file: UploadFile = File(...), _=Depends(get_current_admin)):
    if file.content_type not in ("image/jpeg", "image/png", "image/webp", "image/gif"):
        raise HTTPException(400, "Only JPEG, PNG, WebP or GIF images allowed")
    data = await file.read()
    if len(data) > MAX_SIZE:
        raise HTTPException(413, "Image too large (max 10 MB)")
    os.makedirs(os.path.dirname(BLOCKED_IMAGE_PATH), exist_ok=True)
    with open(BLOCKED_IMAGE_PATH, "wb") as f:
        f.write(data)
    return {"ok": True, "size": len(data)}


@router.delete("/blocked-image", status_code=204)
async def delete_blocked_image(_=Depends(get_current_admin)):
    if os.path.exists(BLOCKED_IMAGE_PATH):
        os.remove(BLOCKED_IMAGE_PATH)