# ESA (C) 2000-2021
# 
# This file is part of ESA's XMM-Newton Scientific Analysis System (SAS).
#
#    SAS is free software: you can redistribute it and/or modify
#    it under the terms of the GNU General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    SAS is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU General Public License for more details.
#
#    You should have received a copy of the GNU General Public License
#    along with SAS.  If not, see <http://www.gnu.org/licenses/>.
#
#
#
# Dockerfile to create the Heasoft minimal image to be used by SAS
#
# SAS requires basically the FTOOLS from Heasoft, not the rest of it.
# Since v6.28, Heasoft offers the option to create a Docker image 
# from a the tar.gz archive resulting from the selection of Heasoft
# components in its web site. 
#
# What we have called the "minimal" Heasoft is the component
# "General-Use FTOOLS" (which also includes the Xspec component from 
# XANADU). Then, unpacking this archive, we have created the Heasoft image.
# 
# Based on Ubuntu 20.04LTS, aka focal.


FROM ubuntu:20.04

ARG heasoft_version=6.28
ENV HEADAS="/usr/local/heasoft-${heasoft_version}/x86_64-pc-linux-gnu-libc2.31"

# To avoid interactive setting of package installations

ARG DEBIAN_FRONTEND=noninteractive

# To allow automatic setting of Time Zone

ENV TZ=CET
RUN ln -s /usr/share/zoneinfo/$TZ /etc/localtime && echo $TZ > /etc/tinezone


# To build Heasoft we need these environment variables

ENV CC=/usr/bin/gcc \
    CXX=/usr/bin/g++ \
    FC=/usr/bin/gfortran \
    PERL=/usr/bin/perl \
    PYTHON=/usr/bin/python

# Install software
RUN apt update && \
    apt install -y \
    gcc \
    g++ \
    gfortran \
    libncurses5-dev \
    libreadline6-dev \
    libreadline-dev \
    ncurses-dev \
    perl \
    python3 \
    python3-dev \
    python3-pip \
    python-is-python3 \
    xorg-dev \
    build-essential \
    make \
    wget \
    tcsh \
    libcurl4 \
    libcurl4-gnutls-dev \
    vim \
 && apt-get clean \
 && rm -rf /var/lib/apt/lists/*

# Copy and uncompress heasoft-6.28 to installation directory
ADD heasoft-6.28src.tar.gz /usr/local

# Build Heasoft
RUN cd /usr/local/heasoft-${heasoft_version}/BUILD_DIR && \
    ./configure > config.out 2>&1 && \ 
    make > build.log 2>&1 && \
    make install > install.log 2>&1

# Heasoft initialisation can not be done via sourcing the headas-init.sh shell
# script but using the ENV command to define the necessary environment variables.
# For Heasoft this is done here, so the image created inherits these variables.

ENV 	PGPLOT_RGB=${HEADAS}/lib/rgb.txt \
    	PGPLOT_DIR=${HEADAS}/lib \
	PGPLOT_FONT=${HEADAS}/lib/grfont.dat \
   	LYNX_CFG=${HEADAS}/lib \
    	PERLIB=${HEADAS}/lib/perl \
	PERL5LIB=${HEADAS}/lib/perl \
	FTOOLS=${HEADAS} \
	FTOOLSINPUT=stdin \
	FTOOLSOUTPUT=stdout \
	LHEASOFT=${HEADAS} \
	LHEAPERL=/usr/bin/perl \
	LHEA_DATA=${HEADAS}/refdata \
	LHEA_HELP=${HEADAS}/help \
	PFCLOBBER=1 \
	EXT=lnx \
	POW_LIBRARY=${HEADAS}/pow \
	PATH=${HEADAS}/bin:$PATH \
	LD_LIBRARY_PATH=${HEADAS}/lib:$LD_LIBRARY_PATH \
	TCLRL_LIBDIR=${HEADAS}/lib \
	PYTHONPATH=${HEADAS}/lib/python:$PYTHONPATH \ 
	PFILES=/pfiles;${HEADAS}/syspfiles

RUN mkdir /pfiles

CMD ["/bin/bash"]