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FROM nvidia/cuda:11.8.0-cudnn8-devel-ubuntu22.04

ENV DEBIAN_FRONTEND=noninteractive
ENV PYTHONUNBUFFERED=1
ENV PYTHONDONTWRITEBYTECODE=1

# ---------------------------------------------------------------------------
# System dependencies + Python 3.11
# ---------------------------------------------------------------------------
RUN apt-get update && apt-get install -y --no-install-recommends \
    software-properties-common \
    curl \
    git \
    build-essential \
    libgl1-mesa-glx \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    ffmpeg \
    && add-apt-repository ppa:deadsnakes/ppa \
    && apt-get update && apt-get install -y --no-install-recommends \
    python3.11 \
    python3.11-venv \
    python3.11-dev \
    python3.11-distutils \
    && rm -rf /var/lib/apt/lists/*

# ---------------------------------------------------------------------------
# Set Python 3.11 as default + pip
# ---------------------------------------------------------------------------
RUN ln -sf /usr/bin/python3.11 /usr/bin/python \
    && ln -sf /usr/bin/python3.11 /usr/bin/python3 \
    && curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11 \
    && python -m pip install --no-cache-dir --upgrade pip setuptools wheel

# ---------------------------------------------------------------------------
# Create non-root user (HF Spaces requirement)
# ---------------------------------------------------------------------------
RUN useradd -m -u 1000 user
ENV HOME=/home/user
ENV PATH=/home/user/.local/bin:$PATH

WORKDIR /app

# ---------------------------------------------------------------------------
# Install Python deps
# ---------------------------------------------------------------------------
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# ---------------------------------------------------------------------------
# Copy app code
# ---------------------------------------------------------------------------
COPY . .

# ---------------------------------------------------------------------------
# Install realesrgan (pulls PyPI basicsr==1.4.2 as dependency)
# ---------------------------------------------------------------------------
RUN pip install --no-cache-dir realesrgan 2>&1 || true

# ---------------------------------------------------------------------------
# FIX: Uninstall broken PyPI basicsr (it imports removed
# torchvision.transforms.functional_tensor). CodeFormer's own local
# basicsr (at /app/CodeFormer/basicsr/) works fine and is used instead
# via PYTHONPATH below.
# ---------------------------------------------------------------------------
RUN pip uninstall -y basicsr 2>&1 || true

# ---------------------------------------------------------------------------
# Use CodeFormer's local basicsr + facelib via PYTHONPATH
# This makes `import basicsr` and `import facelib` resolve to the
# CodeFormer-bundled versions that are compatible with modern torchvision.
# ---------------------------------------------------------------------------
ENV PYTHONPATH="/app/CodeFormer:${PYTHONPATH}"

# ---------------------------------------------------------------------------
# Download pretrained models (now uses local basicsr — no import errors)
# ---------------------------------------------------------------------------
RUN python CodeFormer/scripts/download_pretrained_models.py facelib 2>&1 || true
RUN python CodeFormer/scripts/download_pretrained_models.py CodeFormer 2>&1 || true

# ---------------------------------------------------------------------------
# Directories + permissions
# ---------------------------------------------------------------------------
RUN mkdir -p /app/models /tmp/faceswap \
    && chown -R user:user /app /tmp/faceswap /home/user

# ---------------------------------------------------------------------------
# Switch to non-root
# ---------------------------------------------------------------------------
USER user

EXPOSE 7860

# ---------------------------------------------------------------------------
# PRODUCTION CMD (GPU SAFE)
# ---------------------------------------------------------------------------
CMD ["gunicorn","app:fastapi_app","--workers=1","--worker-class=uvicorn.workers.UvicornWorker","--bind=0.0.0.0:7860","--timeout=600","--graceful-timeout=300","--keep-alive=5","--max-requests=200","--max-requests-jitter=50","--access-logfile=-","--error-logfile=-","--log-level=info"]





# # ============================================================================
# # FaceSwap API - HuggingFace Spaces Docker SDK (FIXED)
# # Production-ready with Gunicorn + Uvicorn workers
# # ============================================================================

# FROM nvidia/cuda:11.8.0-cudnn8-devel-ubuntu22.04

# ENV DEBIAN_FRONTEND=noninteractive
# ENV PYTHONUNBUFFERED=1
# ENV PYTHONDONTWRITEBYTECODE=1

# # ---------------------------------------------------------------------------
# # System dependencies + Python 3.11
# # ---------------------------------------------------------------------------
# RUN apt-get update && apt-get install -y --no-install-recommends \
#     software-properties-common \
#     curl \
#     git \
#     build-essential \
#     libgl1-mesa-glx \
#     libglib2.0-0 \
#     libsm6 \
#     libxext6 \
#     libxrender-dev \
#     ffmpeg \
#     && add-apt-repository ppa:deadsnakes/ppa \
#     && apt-get update && apt-get install -y --no-install-recommends \
#     python3.11 \
#     python3.11-venv \
#     python3.11-dev \
#     python3.11-distutils \
#     && rm -rf /var/lib/apt/lists/*

# # ---------------------------------------------------------------------------
# # Set Python 3.11 as default + pip
# # ---------------------------------------------------------------------------
# RUN ln -sf /usr/bin/python3.11 /usr/bin/python \
#     && ln -sf /usr/bin/python3.11 /usr/bin/python3 \
#     && curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11 \
#     && python -m pip install --no-cache-dir --upgrade pip setuptools wheel

# # ---------------------------------------------------------------------------
# # Create non-root user (HF Spaces requirement)
# # ---------------------------------------------------------------------------
# RUN useradd -m -u 1000 user
# ENV HOME=/home/user
# ENV PATH=/home/user/.local/bin:$PATH

# WORKDIR /app

# # ---------------------------------------------------------------------------
# # Install Python deps
# # ---------------------------------------------------------------------------
# COPY requirements.txt .
# RUN pip install --no-cache-dir -r requirements.txt

# # ---------------------------------------------------------------------------
# # Copy app code
# # ---------------------------------------------------------------------------
# COPY . .

# # ---------------------------------------------------------------------------
# # Install BasicSR (required for CodeFormer)
# # ---------------------------------------------------------------------------
# RUN cd /app && python CodeFormer/basicsr/setup.py develop 2>&1 || true

# # ---------------------------------------------------------------------------
# # Install realesrgan
# # ---------------------------------------------------------------------------
# RUN pip install --no-cache-dir realesrgan 2>&1 || true

# # ---------------------------------------------------------------------------
# # Download pretrained models
# # ---------------------------------------------------------------------------
# RUN python CodeFormer/scripts/download_pretrained_models.py facelib 2>&1 || true
# RUN python CodeFormer/scripts/download_pretrained_models.py CodeFormer 2>&1 || true

# # ---------------------------------------------------------------------------
# # Directories + permissions
# # ---------------------------------------------------------------------------
# RUN mkdir -p /app/models /tmp/faceswap \
#     && chown -R user:user /app /tmp/faceswap /home/user

# # ---------------------------------------------------------------------------
# # Switch to non-root
# # ---------------------------------------------------------------------------
# USER user

# EXPOSE 7860

# # ---------------------------------------------------------------------------
# # PRODUCTION CMD (GPU SAFE)
# # ---------------------------------------------------------------------------
# CMD ["gunicorn","app:fastapi_app","--workers=1","--worker-class=uvicorn.workers.UvicornWorker","--bind=0.0.0.0:7860","--timeout=300","--graceful-timeout=120","--keep-alive=5","--max-requests=200","--max-requests-jitter=50","--access-logfile=-","--error-logfile=-","--log-level=info"]


# # # ============================================================================
# # # FaceSwap API - HuggingFace Spaces Docker SDK
# # # Production-ready with Gunicorn + Uvicorn workers
# # # ============================================================================
# # FROM nvidia/cuda:11.8.0-cudnn8-devel-ubuntu22.04

# # ENV DEBIAN_FRONTEND=noninteractive
# # ENV PYTHONUNBUFFERED=1
# # ENV PYTHONDONTWRITEBYTECODE=1

# # # ---------------------------------------------------------------------------
# # # System dependencies + Python 3.11
# # # ---------------------------------------------------------------------------
# # RUN apt-get update && apt-get install -y --no-install-recommends \
# #     software-properties-common \
# #     curl \
# #     git \
# #     build-essential \
# #     libgl1-mesa-glx \
# #     libglib2.0-0 \
# #     libsm6 \
# #     libxext6 \
# #     libxrender-dev \
# #     ffmpeg \
# #     && add-apt-repository ppa:deadsnakes/ppa \
# #     && apt-get update && apt-get install -y --no-install-recommends \
# #     python3.11 \
# #     python3.11-venv \
# #     python3.11-dev \
# #     python3.11-distutils \
# #     && rm -rf /var/lib/apt/lists/*

# # # ---------------------------------------------------------------------------
# # # Set Python 3.11 as default + install pip
# # # ---------------------------------------------------------------------------
# # RUN ln -sf /usr/bin/python3.11 /usr/bin/python \
# #     && ln -sf /usr/bin/python3.11 /usr/bin/python3 \
# #     && curl -sS https://bootstrap.pypa.io/get-pip.py | python3.11 \
# #     && python -m pip install --no-cache-dir --upgrade pip setuptools wheel

# # # ---------------------------------------------------------------------------
# # # Create non-root user (HuggingFace Spaces requirement)
# # # ---------------------------------------------------------------------------
# # RUN useradd -m -u 1000 user
# # ENV HOME=/home/user
# # ENV PATH=/home/user/.local/bin:$PATH

# # WORKDIR /app

# # # ---------------------------------------------------------------------------
# # # Install Python dependencies (cached Docker layer)
# # # ---------------------------------------------------------------------------
# # COPY requirements.txt .
# # RUN pip install --no-cache-dir -r requirements.txt

# # # ---------------------------------------------------------------------------
# # # Copy full application code
# # # ---------------------------------------------------------------------------
# # COPY . .

# # # ---------------------------------------------------------------------------
# # # Install BasicSR from local source (required by CodeFormer)
# # # ---------------------------------------------------------------------------
# # RUN cd /app && python CodeFormer/basicsr/setup.py develop 2>&1 || \
# #     echo "WARNING: BasicSR install failed (will retry at runtime)"

# # # ---------------------------------------------------------------------------
# # # Install realesrgan (depends on BasicSR)
# # # ---------------------------------------------------------------------------
# # RUN pip install --no-cache-dir realesrgan 2>&1 || \
# #     echo "WARNING: realesrgan install failed (will retry at runtime)"

# # # ---------------------------------------------------------------------------
# # # Pre-download CodeFormer pretrained models
# # # ---------------------------------------------------------------------------
# # RUN python CodeFormer/scripts/download_pretrained_models.py facelib 2>&1 || \
# #     echo "WARNING: facelib models download failed (will retry at runtime)"
# # RUN python CodeFormer/scripts/download_pretrained_models.py CodeFormer 2>&1 || \
# #     echo "WARNING: CodeFormer models download failed (will retry at runtime)"

# # # ---------------------------------------------------------------------------
# # # Ensure directories + permissions for non-root user
# # # ---------------------------------------------------------------------------
# # RUN mkdir -p /app/models /tmp/faceswap \
# #     && chown -R user:user /app /tmp/faceswap /home/user

# # # ---------------------------------------------------------------------------
# # # Switch to non-root user
# # # ---------------------------------------------------------------------------
# # USER user

# # EXPOSE 7860

# # # ---------------------------------------------------------------------------
# # # Production: Gunicorn with Uvicorn ASGI workers
# # #
# # # --workers 2        : 2 processes (each loads ML models ~1-2GB GPU)
# # # --worker-class     : UvicornWorker for async FastAPI support
# # # --timeout 300      : Face swap + enhancement can take 30-120s
# # # --graceful-timeout  : Allow 120s for in-flight requests on shutdown
# # # --max-requests 500 : Restart workers to prevent GPU memory leaks
# # # ---------------------------------------------------------------------------
# # # CMD ["gunicorn", "app:fastapi_app", \
# # #      "--workers", "2", \
# # #      "--worker-class", "uvicorn.workers.UvicornWorker", \
# # #      "--bind", "0.0.0.0:7860", \
# # #      "--timeout", "300", \
# # #      "--graceful-timeout", "120", \
# # #      "--keep-alive", "5", \
# # #      "--max-requests", "500", \
# # #      "--max-requests-jitter", "50", \
# # #      "--access-logfile", "-", \
# # #      "--error-logfile", "-", \
# # #      "--log-level", "info"]

# # CMD ["gunicorn", "app:fastapi_app",
# #      "--workers=1",
# #      "--worker-class=uvicorn.workers.UvicornWorker",
# #      "--bind=0.0.0.0:7860",
# #      "--timeout=300",
# #      "--graceful-timeout=120",
# #      "--keep-alive=5",
# #      "--max-requests=200",
# #      "--max-requests-jitter=50",
# #      "--access-logfile=-",
# #      "--error-logfile=-",
# #      "--log-level=info"]