FROM python:3.10-slim

# System dependencies
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
    git \
    libsndfile1 \
    espeak-ng \
    cmake \
    && rm -rf /var/lib/apt/lists/*

WORKDIR /app

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

# Install llama-cpp-python (CPU only, no special flags for free tier)
RUN pip install --no-cache-dir llama-cpp-python==0.3.9

# Copy application source
COPY . .

# Environment
ENV HF_HOME=/tmp/hf_cache
ENV PYTHONUNBUFFERED=1

EXPOSE 7860

CMD ["python", "app.py"]