FROM python:3.12-slim

# Install uv (copy from the official image rather than curl)
COPY --from=ghcr.io/astral-sh/uv:latest /uv /uvx /bin/

# Set environment variables
# - Activate the venv by putting it at the front of the PATH
# - Compile bytecode for faster startup
ENV PATH="/app/.venv/bin:$PATH" \
    UV_COMPILE_BYTECODE=1 \
    UV_LINK_MODE=copy

WORKDIR /app

# Install dependencies
# Copy only the files needed to resolve dependencies first (better caching)
COPY pyproject.toml uv.lock* ./

# Sync dependencies without installing the project itself yet
RUN uv sync --frozen --no-install-project --no-dev

# Copy source code and install the project
COPY src /app/src
RUN uv sync --frozen --no-dev

# Runtime configuration
ARG APP
ENV APP=$APP
ENV PYTHONPATH=$APP/src/:$PYTHONPATH
ENV PYTHONUNBUFFERED=1

# Because PATH is updated, "python" now points to the venv python
CMD ["python", "src/main.py"]