FROM python:3.11-slim-bookworm

RUN apt-get update && apt-get install -y --no-install-recommends \
    patchelf libpq-dev gcc git curl wget \
    && rm -rf /var/lib/apt/lists/*

ENV PYTHONUNBUFFERED=1 \
    PIP_DISABLE_PIP_VERSION_CHECK=1 \
    TOKENIZERS_PARALLELISM=false \
    HF_HOME=/root/.cache/huggingface

WORKDIR /app

COPY requirements.txt .
RUN pip install --no-cache-dir --upgrade pip

# Install PyTorch with CUDA support (cu118 for broader compatibility)
RUN pip install --no-cache-dir torch==2.1.0 torchvision==0.16.0 --index-url https://download.pytorch.org/whl/cu118

RUN pip install --no-cache-dir \
    ctranslate2==3.24.0 \
    sentencepiece \
    transformers==4.36.0 \
    protobuf==3.20.3 \
    "numpy<2" \
    psycopg2-binary \
    langdetect

# Fix executable stack
RUN find /usr/local/lib/python3.11/site-packages/ctranslate2* \
    -name "libctranslate2-*.so.*" -o -name "libctranslate2.so*" | \
    xargs -I {} patchelf --clear-execstack {} || true

COPY workers/ ./workers/
COPY init-db/ ./init-db/
COPY migrations/ ./migrations/

ENV DB_HOST=db
ENV DB_PORT=5432
ENV DB_NAME=rss
ENV DB_USER=rss
ENV DB_PASS=x

# GPU Configuration - Override with: docker run --gpus all
ENV CT2_DEVICE=cuda
ENV CT2_COMPUTE_TYPE=float16

CMD ["python", "-m", "workers.ctranslator_worker"]