# Use a lightweight Python image
FROM python:3.10-slim

# Set work directory
WORKDIR /app

# Install system dependencies (optional but useful)
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    && rm -rf /var/lib/apt/lists/*

# Copy requirements first (to leverage Docker layer caching)
COPY requirements.txt .

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

# Copy the rest of the repo (including model files and main.py)
COPY . .

# Hugging Face Spaces expects the app on port 7860
ENV PORT=7860

# Expose port (not strictly required by HF, but good practice)
EXPOSE 7860

# Start FastAPI with uvicorn
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]