FROM python:3.11-slim

# Install ffmpeg (required for audio processing)
RUN apt-get update && \
    apt-get install -y --no-install-recommends ffmpeg && \
    rm -rf /var/lib/apt/lists/*

WORKDIR /app

# Install CPU-only PyTorch first (saves ~1.5GB vs full CUDA build)
RUN pip install --no-cache-dir \
    torch torchaudio --index-url https://download.pytorch.org/whl/cpu

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

# Copy application code
COPY . .

# Writable tmp dirs for uploads/outputs
RUN mkdir -p /app/tmp/uploads /app/tmp/outputs

# HuggingFace Spaces expects port 7860
ENV PORT=7860

EXPOSE 7860

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