#!/bin/sh

set -e
set -o pipefail

scheme="$1"

retry() {
  retries=$1
  shift

  count=0
  until "$@"; do
    exit=$?
    wait="$(echo "2^$count" | bc)"
    count="$(echo "$count + 1" | bc)"
    if [ "$count" -lt "$retries" ]; then
      echo "Retry $count/$retries exited $exit, retrying in $wait seconds..."
      sleep "$wait"
    else
      echo "Retry $count/$retries exited $exit, no more retries left."
      return "$exit"
    fi
  done
}

echo "==> Install system packages"
apk --no-cache add \
  bash \
  ghostscript \
  gnupg \
  graphviz \
  perl \
  py-pygments \
  python2 \
  python3 \
  tar \
  ttf-freefont \
  wget \
  make \
  xz

# Dependencies needed by latexindent
apk --no-cache add \
  perl-log-dispatch \
  perl-log-log4perl \
  perl-namespace-autoclean \
  perl-params-validationcompiler \
  perl-specio \
  perl-unicode-linebreak \
  perl-yaml-tiny
apk --no-cache \
  --repository=http://dl-cdn.alpinelinux.org/alpine/edge/testing \
  add \
  perl-file-homedir

echo "==> Install TeXLive"
mkdir -p /tmp/install-tl
cd /tmp/install-tl
MIRROR_URL="$(wget -q -S -O /dev/null http://mirror.ctan.org/ 2>&1 | sed -ne 's/.*Location: \(\w*\)/\1/p' | head -n 1)"
wget -nv "${MIRROR_URL}systems/texlive/tlnet/install-tl-unx.tar.gz"
wget -nv "${MIRROR_URL}systems/texlive/tlnet/install-tl-unx.tar.gz.sha512"
wget -nv "${MIRROR_URL}systems/texlive/tlnet/install-tl-unx.tar.gz.sha512.asc"
gpg --no-default-keyring --keyring trustedkeys.kbx --import /texlive_pgp_keys.asc
gpgv ./install-tl-unx.tar.gz.sha512.asc ./install-tl-unx.tar.gz.sha512
sha512sum -c ./install-tl-unx.tar.gz.sha512
mkdir -p /tmp/install-tl/installer
tar --strip-components 1 -zxf /tmp/install-tl/install-tl-unx.tar.gz -C /tmp/install-tl/installer
retry 3 /tmp/install-tl/installer/install-tl  -profile=/texlive.profile

# Install additional packages for non full scheme
if [ "$scheme" != "full" ]; then
  tlmgr install \
    collection-fontsrecommended \
    collection-fontutils \
    xgreek \
    xltxtra \
    biber \
    biblatex \
    latexmk \
    collection-xetex \
    polyglossia \
    greek-fontenc \
    hyphen-english \
    hyphen-greek \
    xetex \
  t2 \
  tools \
  oberdiek \
  bigfoot \
  zapfding \
  xstring \
  datetime \
  nomencl \
  geometry \
  setspace \
  footmisc \
  tocloft \
  fancyhdr \
  titlesec \
  graphics \
  graphics-cfg \
  caption \
  amsmath \
  amscls \
  mathspec \
  enumitem \
  makecell \
  multirow \
  was \
  xcolor \
  listings \
  ulem \
  hyperref \
  latexconfig \
  url \
  natbib \
  lastpage \
  totcount \
  pdfpages \
  textcase \
  fp \
  extsizes \
  fmtcount \
  koma-script \
  pdflscape \
  texliveonfly

echo "==> extra packages"

extrap=/extrapackages
if [ -f $extrap ]; then

while read -r line; do
extrapackages="$extrapackages $line"
done < $extrap

tlmgr install $extrapackages

else
        echo "No extrapackages file"
fi

  cp /usr/local/texlive/2020/texmf-var/fonts/conf/texlive-fontconfig.conf /etc/fonts/conf.d/09-texlive.conf

  apk add --no-cache msttcorefonts-installer 

  update-ms-fonts 
  
  fc-cache -f 
fi

texhash

echo "==> Clean up"
rm -rf \
  /opt/texlive/texdir/install-tl \
  /opt/texlive/texdir/install-tl.log \
  /opt/texlive/texdir/texmf-dist/doc \
  /opt/texlive/texdir/texmf-dist/source \
  /opt/texlive/texdir/texmf-var/web2c/tlmgr.log \
  /root/.gnupg \
  /setup.sh \
  /extrapackages \
  /texlive.profile \
  /texlive_pgp_keys.asc \
  /tmp/install-tl \
  /tmp/install-tl-unx