FROM python:3.11-slim

WORKDIR /app

# 1. Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    cmake \
    curl \
    git \
    libopenblas-dev \
    liblapack-dev \
    && rm -rf /var/lib/apt/lists/*

# 2. CRITICAL FIX: Limit build to 1 thread to prevent OOM (Exit 137)
ENV CMAKE_BUILD_PARALLEL_LEVEL=1

# 3. Install dlib separately first

RUN pip3 install --no-cache-dir dlib

# 4. Install remaining dependencies
COPY requirements.txt ./
RUN pip3 install --no-cache-dir -r requirements.txt

# 5. Copy source code & startapplicatio.sh script
COPY src/ ./src/
COPY startapplication.sh ./

# Make the script executable
RUN chmod +x startapplication.sh

# 6. Hugging Face Spaces Config
EXPOSE 8501
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

ENTRYPOINT ["./startapplication.sh"]