# Use Python 3.10 slim image
FROM python:3.10-slim

# Prevent Python from writing pyc files and buffering stdout/stderr
ENV PYTHONUNBUFFERED=1 \
    PYTHONDONTWRITEBYTECODE=1 \
    HF_HOME=/tmp/hf_cache

# Set working directory
WORKDIR /code

# Install system dependencies for OpenCV and basic compilation
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libgl1 \
    libglib2.0-0 \
    git \
    && rm -rf /var/lib/apt/lists/*

# Copy and install python dependencies
COPY requirements.txt /code/requirements.txt
RUN pip install --no-cache-dir --upgrade -r /code/requirements.txt

# Create cache directories and set permissions for Hugging Face container user
RUN mkdir -p /tmp/hf_cache && chmod -R 777 /tmp/hf_cache

# Copy application files
COPY . /code

# Change permissions to make files writable by Hugging Face default user (UID 1000)
RUN chmod -R 777 /code

# Expose port 7860 for Hugging Face Space
EXPOSE 7860

# Run Streamlit on Hugging Face standard port
CMD ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]