FROM python:3.10-slim

WORKDIR /app

# Install system dependencies for OpenCV and image processing
RUN apt-get update && apt-get install -y \
    libgl1-mesa-glx \
    libgl1-mesa-dri \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    curl \
    build-essential \
    && rm -rf /var/lib/apt/lists/* || \
    (apt-get update && apt-get install -y \
    libgl1 \
    libglib2.0-0 \
    libsm6 \
    libxext6 \
    libxrender-dev \
    libgomp1 \
    curl \
    build-essential \
    && rm -rf /var/lib/apt/lists/*)

# Set environment variables for Streamlit
ENV STREAMLIT_CONFIG_DIR=/app/.streamlit
ENV STREAMLIT_GLOBAL_CONFIG_DIR=/app/.streamlit
ENV STREAMLIT_BROWSER_GATHER_USAGE_STATS=false
ENV STREAMLIT_SERVER_HEADLESS=true
ENV STREAMLIT_SERVER_ENABLE_CORS=false
ENV STREAMLIT_SERVER_ENABLE_XSRF_PROTECTION=false

# Copy requirements first for better caching
COPY requirements.txt .

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

# Copy the application code
COPY . .

# Create streamlit config directory and set permissions
RUN mkdir -p /app/.streamlit && \
    chmod -R 755 /app/.streamlit

# Expose the port Streamlit runs on
EXPOSE 8501

# Health check
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health

# Run the Streamlit app
CMD ["streamlit", "run", "app.py", "--server.port=8501", "--server.address=0.0.0.0"]