FROM python:3.9-slim

# Install necessary system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    libffi-dev \
    libssl-dev \
    && rm -rf /var/lib/apt/lists/*

# Create and switch to a non-root user
RUN useradd -m -u 1000 user
USER user

# Set PATH so pip installs to user dir are available
ENV PATH="/home/user/.local/bin:$PATH"

WORKDIR /app

# Install Python dependencies
COPY --chown=user ./requirements.txt requirements.txt
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir -r requirements.txt

# Copy all app files
COPY --chown=user . /app

# Run the app
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]