# Use python:3.9-slim for speed
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Set environment variables to keep Python logs clean
ENV PYTHONDONTWRITEBYTECODE=1
ENV PYTHONUNBUFFERED=1

# Install ONLY the essentials (curl for healthcheck, build-essential for compiling)
# We removed 'software-properties-common' and 'git' to fix the build error.
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first to leverage Docker caching
COPY requirements.txt .

# Install Python dependencies
RUN pip3 install --no-cache-dir -r requirements.txt

# Copy the rest of the application
COPY . .

# Expose Streamlit port
EXPOSE 8501

# Healthcheck to keep the app alive
HEALTHCHECK CMD curl --fail http://localhost:8501/_stcore/health || exit 1

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