FROM python:3.11-slim

ENV PYTHONUNBUFFERED=1 PIP_NO_CACHE_DIR=1 HOME=/home/user \
    PATH=/home/user/.local/bin:$PATH PORT=7860 \
    WHISPER_MODEL=deepdml/faster-whisper-large-v3-ct2 \
    OMP_NUM_THREADS=2 OPENBLAS_NUM_THREADS=2 \
    TOKENIZERS_PARALLELISM=false \
    WHISPER_CPU_THREADS=2 WHISPER_NUM_BEAMS=1 \
    WHISPER_VAD_FILTER=0 WHISPER_PRELOAD_ON_START=1 \
    WHISPER_BACKEND=auto WHISPER_REMOTE_PROVIDER=hf-inference \
    WHISPER_REMOTE_MODEL=openai/whisper-large-v3 \
    WHISPER_REMOTE_TIMEOUT=15 WHISPER_PREPROCESS_AUDIO=1

RUN apt-get update && apt-get install -y --no-install-recommends ffmpeg \
    && rm -rf /var/lib/apt/lists/* \
    && useradd -m -u 1000 user

USER user
WORKDIR /home/user/app

COPY --chown=user requirements.txt .
RUN pip install --upgrade pip && pip install -r requirements.txt

COPY --chown=user app.py ./
COPY --chown=user expense_predictor.py ./
COPY --chown=user extractors/ ./extractors/

EXPOSE 7860
CMD ["gunicorn", "--bind", "0.0.0.0:7860", "--worker-class", "sync", "--workers", "1", "--timeout", "300", "app:app"]