FROM python:3.10-slim

# Set working directory
WORKDIR /app

# Install system dependencies
RUN apt-get update && apt-get install -y \
    ffmpeg \
    git \
    gcc \
    g++ \
    && rm -rf /var/lib/apt/lists/*

# Pin setuptools<81 (pkg_resources was removed in setuptools>=81).
# --no-build-isolation makes pip skip creating an isolated subprocess env,
# so it uses OUR pinned setuptools instead of downloading the latest one.
RUN pip install --no-cache-dir "setuptools<81" wheel cython

# Install legacy packages with --no-build-isolation so pip reuses the
# pinned setuptools above instead of pulling setuptools>=81 into a temp env.
RUN pip install --no-cache-dir --no-build-isolation openai-whisper==20231117
RUN pip install --no-cache-dir --no-build-isolation https://github.com/ludlows/python-pesq/archive/master.zip

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

# Copy application files
COPY . .

# Expose port (HF Spaces uses port 7860)
EXPOSE 7860

# Run FastAPI with uvicorn
CMD ["uvicorn", "app:app", "--host", "0.0.0.0", "--port", "7860"]