# -------------------------------------------------
# Base image (CPU)
# HuggingFace recommends Python 3.10 for Spaces
# -------------------------------------------------
FROM python:3.10-slim

# -------------------------------------------------
# Set working directory
# -------------------------------------------------
WORKDIR /app

# -------------------------------------------------
# Install system dependencies
# -------------------------------------------------
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    libffi-dev \
    && rm -rf /var/lib/apt/lists/*

# -------------------------------------------------
# Copy requirements first (better caching)
# -------------------------------------------------
COPY requirements.txt .

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

# -------------------------------------------------
# Copy project files
# -------------------------------------------------
COPY . .

# -------------------------------------------------
# Expose port 7860 (required by HuggingFace Spaces)
# -------------------------------------------------
EXPOSE 7860

# -------------------------------------------------
# Start FastAPI app
# NOTE: HuggingFace uses 0.0.0.0 + port 7860
# -------------------------------------------------
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]