# Use Python 3.10
FROM python:3.10-slim

# Install ffmpeg (essential for librosa to read mp3/wav)
RUN apt-get update && apt-get install -y ffmpeg && rm -rf /var/lib/apt/lists/*

# Set up a new user 'user' with UID 1000
RUN useradd -m -u 1000 user
USER user
ENV HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH

WORKDIR $HOME/app

# Copy requirements and install
COPY --chown=user requirements.txt .
RUN pip install --no-cache-dir -r requirements.txt

# Copy the app
COPY --chown=user . .

# Pre-download the model into the image so it starts fast
RUN python -c "from transformers import WhisperForConditionalGeneration; WhisperForConditionalGeneration.from_pretrained('devrahulbanjara/whisper-small-nepali')"

# Start FastAPI on port 7860
CMD ["uvicorn", "main:app", "--host", "0.0.0.0", "--port", "7860"]