#!/usr/bin/env bash

########################################################################
# Regenerate auto-generated files, using information in SAGE_ROOT/build/
#
# This script is run by SAGE_ROOT/bootstrap as part of the bootstrapping phase
# (before configure, before creating source distributions).
#
# The BOOTSTRAP_QUIET variable is set by the top-level
# bootstrap script and controls how verbose we are.
########################################################################

set -e

if [ -z "$SAGE_ROOT" ]; then
    echo Please run the top-level bootstrap script of the Sage distribution.
    exit 1
fi

./bootstrap_m4

shopt -s extglob

echo arch conda debian fedora gentoo homebrew opensuse void | xargs -P 16 -n 1 ./bootstrap_system_packages

cd "$SAGE_ROOT"

OUTPUT_DIR="src/doc/en/reference/spkg"
mkdir -p "$OUTPUT_DIR"
if [ "${BOOTSTRAP_QUIET}" = "no" ]; then
    echo >&2 $0:$LINENO: installing "$OUTPUT_DIR"/"*.rst"
fi
(cat <<EOF
Mathematics
~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --has-file math :standard: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done
cat <<EOF

Front-end, graphics, document preparation
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --no-file math --has-file front-end :standard: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done
cat <<EOF

Other dependencies
~~~~~~~~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --no-file math --no-file front-end :standard: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done) > "$OUTPUT_DIR"/index_standard.rst
(cat <<EOF
Mathematics
~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --has-file math :optional: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done
cat <<EOF

Front-end, graphics, document preparation
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --no-file math --has-file front-end :optional: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done
cat <<EOF

Other dependencies
~~~~~~~~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --no-file math --no-file front-end :optional: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done) > "$OUTPUT_DIR"/index_optional.rst
for PKG_BASE in $(sage-package list --has-file SPKG.rst | grep '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done > "$OUTPUT_DIR"/index_sagemath.rst
(cat <<EOF
Mathematics
~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --has-file math :experimental: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done

cat <<EOF

Other dependencies
~~~~~~~~~~~~~~~~~~

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst --no-file math :experimental: | grep -v '^sagemath_'); do
    echo "* :ref:\`spkg_$PKG_BASE\`"
done) > "$OUTPUT_DIR"/index_experimental.rst
(cat <<EOF

Details of external packages
============================

Packages are in alphabetical order.

.. default-role:: code

.. toctree::
   :maxdepth: 1

EOF
for PKG_BASE in $(sage-package list --has-file SPKG.rst); do
    echo "   $PKG_BASE"
done
cat <<EOF

.. default-role::

EOF
) > "$OUTPUT_DIR"/index_alph.rst
sage-package list --has-file SPKG.rst | xargs -P 16 -n 20 sage-spkg-info --output-rst --output-dir="$OUTPUT_DIR"
