# Stage 1: Build stage
FROM python:3.10

# Set the working directory in the container
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    gcc \
    libpq-dev \
    gdal-bin \
    libgdal-dev \
    python3-gdal \
    && rm -rf /var/lib/apt/lists/*

# Set environment variables for GDAL
ENV GDAL_CONFIG=/usr/bin/gdal-config
ENV CPLUS_INCLUDE_PATH=/usr/include/gdal
ENV C_INCLUDE_PATH=/usr/include/gdal

# Create a non-root user
RUN useradd -m -s /bin/bash appuser

# Copy the requirements file into the container
COPY requirements.txt .

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

# Copy the rest of the application code
COPY . .

# Change ownership of the /app directory to appuser
RUN chown -R appuser:appuser /app

# Switch to the non-root user
USER appuser

# Expose port 8501 for Streamlit
EXPOSE 8501

# Command to run the Streamlit app
CMD ["streamlit", "run", "app.py", "--server.address=0.0.0.0"]