FROM mambaorg/micromamba:1.5.10

WORKDIR /app

# Install FreeCAD + Python via conda-forge (headless)
RUN micromamba create -y -n fc -c conda-forge \
      python=3.12 freecad \
    && micromamba clean -a -y

# Activate env for subsequent RUN/CMD
ENV MAMBA_DOCKERFILE_ACTIVATE=1
SHELL ["/bin/bash", "-lc"]

# Install small OS deps (git for SheetMetal)
# NOTE: do NOT switch users; keep it simple and reproducible
USER root
RUN mkdir -p /var/lib/apt/lists/partial \
 && apt-get update \
 && apt-get install -y --no-install-recommends git ca-certificates \
 && rm -rf /var/lib/apt/lists/*

# Python deps into conda env
COPY requirements.txt /app/requirements.txt
RUN micromamba run -n fc pip install --no-cache-dir -r /app/requirements.txt

# App sources
COPY . /app

# SheetMetal workbench (we'll link it into HOME at runtime)
RUN mkdir -p /opt/freecad_mods \
 && git clone --depth 1 https://github.com/shaise/FreeCAD_SheetMetal.git /opt/freecad_mods/SheetMetal

# Make FreeCAD find SheetMetal without any host volume
ENV HOME=/opt/freecad_home
RUN mkdir -p /opt/freecad_home/.local/share/FreeCAD/Mod \
 && ln -s /opt/freecad_mods/SheetMetal /opt/freecad_home/.local/share/FreeCAD/Mod/SheetMetal

# Runtime env (overridable)
ENV FREECADCMD=/opt/conda/envs/fc/bin/freecadcmd
ENV FREECAD_TIMEOUT_SEC=1200
ENV FREECAD_LOCK_FILE=/app/_jobs/.freecad.lock
ENV HOME=/config

EXPOSE 5055

CMD ["bash", "-lc", "micromamba run -n fc gunicorn -w 1 --threads 4 -b 0.0.0.0:5055 app:app"]