# Use Python 3.9 slim image
FROM python:3.9-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    build-essential \
    curl \
    software-properties-common \
    git \
    && rm -rf /var/lib/apt/lists/*

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

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

# Copy model files and application code
COPY final-model/ ./final-model/
COPY app.py .
COPY model_utils.py .
COPY index.html .

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

# Expose port
EXPOSE 8000

# Health check
HEALTHCHECK --interval=30s --timeout=30s --start-period=5s --retries=3 \
    CMD curl -f http://localhost:8000/health || exit 1

# Run FastAPI using Uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "8000", "--log-level", "info"]