Dockerfile

# Dockerfile for Hugging Face Spaces (Docker SDK)
# Port 7860 is required by HF Spaces

FROM python:3.11-slim

# HF Spaces runs as non-root; redirect model caches to /tmp
ENV HF_HOME=/tmp/huggingface
ENV TORCH_HOME=/tmp/torch
ENV TRANSFORMERS_CACHE=/tmp/huggingface
ENV MODEL_PATH=/app/models/best_model.pt
ENV FRONTEND_DIR=/app/frontend

WORKDIR /app

# Install system deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    libsndfile1 \
    ffmpeg \
    && rm -rf /var/lib/apt/lists/*

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

# Copy source
COPY backend/   ./backend/
COPY frontend/  ./frontend/
COPY models/    ./models/

WORKDIR /app/backend

EXPOSE 7860

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