FROM python:3.11-slim

WORKDIR /app

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

# Copy requirements and install Python dependencies
COPY requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Set environment variables for better performance
ENV PYTHONUNBUFFERED=1 \
    TRANSFORMERS_CACHE=/app/.cache/huggingface \
    TOKENIZERS_PARALLELISM=true

# Create cache directory for model downloads
RUN mkdir -p /app/.cache/huggingface

# Copy application code
COPY . .

CMD ["uvicorn", "app.main:app", "--host", "0.0.0.0", "--reload"]