FROM python:3.10-slim

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

WORKDIR /app

# Upgrade pip and install PyTorch CPU first to cache it (saves 2.5GB download and build time)
RUN pip install --no-cache-dir --upgrade pip && \
    pip install --no-cache-dir torch --index-url https://download.pytorch.org/whl/cpu

# Copy python packaging and source files
COPY ./pyproject.toml ./pyproject.toml
COPY ./README.md ./README.md
COPY ./pocket_tts ./pocket_tts
COPY ./s2s_server.py ./s2s_server.py
COPY ./models ./models
COPY ./queues ./queues
COPY ./runtime ./runtime
COPY ./services ./services
COPY ./middleware ./middleware

# Install dependencies and local pocket-tts package
RUN pip install --no-cache-dir -e . && \
    pip install --no-cache-dir openai groq websockets uvicorn python-dotenv

# Expose ports for both local, Render, and Hugging Face Spaces (which uses 7860)
ENV PORT=7860
EXPOSE 8000
EXPOSE 7860

# Run the S2S server
CMD ["python", "s2s_server.py"]