FROM python:3.11-slim

WORKDIR /app

# Set timezone non-interactively
ENV TZ=Asia/Singapore
RUN ln -snf /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/timezone

# Install system dependencies
RUN apt-get update && apt-get install -y \
    git \
    libgl1 \
    libglib2.0-0 \
    curl \
    gcc \
    g++ \
    pkg-config \
    && rm -rf /var/lib/apt/lists/*

COPY requirements.txt .

# Install Python packages
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

COPY app.py .

# Create non-root user
RUN useradd -m -u 1000 streamlit && \
    chown -R streamlit:streamlit /app
USER streamlit

EXPOSE 7860

HEALTHCHECK CMD curl --fail http://localhost:7860/_stcore/health || exit 1

ENTRYPOINT ["streamlit", "run", "app.py", "--server.port=7860", "--server.address=0.0.0.0"]