# Use lightweight Python image
FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies (git needed for Hugging Face)
RUN apt-get update && apt-get install -y git && rm -rf /var/lib/apt/lists/*

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

# Copy application code
COPY . .

# Set environment variables for cache dirs (Docker-friendly)
ENV HF_HOME=/tmp
ENV TRANSFORMERS_CACHE=/tmp
ENV TORCHINDUCTOR_CACHE_DIR=/tmp/torch_inductor_cache

# Create cache folder
RUN mkdir -p /tmp/torch_inductor_cache

# Expose port
EXPOSE 7860

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