FROM python:3.11-slim

# Build essentials for any source-built deps
RUN apt-get update && apt-get install -y --no-install-recommends \
    build-essential \
 && rm -rf /var/lib/apt/lists/*

# HF Spaces requires a non-root user with uid 1000
RUN useradd -m -u 1000 user
USER user
WORKDIR /app

ENV PATH=/home/user/.local/bin:$PATH \
    PYTHONPATH=/app/src \
    PYTHONUNBUFFERED=1 \
    HF_HOME=/home/user/.cache/huggingface

# 1. Install dependencies (cached layer)
COPY --chown=user requirements.txt /app/requirements.txt
RUN pip install --user --no-cache-dir -r /app/requirements.txt

# 2. Copy source + frontend + curated examples
COPY --chown=user src/ /app/src/
COPY --chown=user web/ /app/web/
COPY --chown=user data/ /app/data/

# Model + tokenizer are pulled from the Hub at runtime.
# HF_TOKEN is injected by HF Spaces as an env var if you set it in
# Settings → Secrets (required for private repos).
# ANTHROPIC_API_KEY (also a secret) unlocks the translation toggle.
ENV VINTAGE_CHECKPOINT=camustech/vintage-200m-v0.1 \
    VINTAGE_TOKENIZER=camustech/vintage-200m-v0.1

EXPOSE 7860

CMD ["python", "-m", "camus_vintage.chat.server", \
     "--host", "0.0.0.0", "--port", "7860", \
     "--device", "cpu"]