#/bin/bash

echo "Checking status of mympd system user and group"
getent group mympd > /dev/null
[ "$?" = "2" ] && groupadd -r mympd
getent passwd mympd > /dev/null
[ "$?" = "2" ] && useradd -r mympd -g mympd -d /var/lib/mympd -s /usr/sbin/nologin

if ! [ $(stat -c '%U:%G' /var/lib/mympd/) = 'mympd:mympd' ]
then
  echo "Fixing ownership of /var/lib/mympd"
  chown -R mympd.mympd /var/lib/mympd
fi

echo "Trying to link musicdir to library"
if [ -f /etc/mpd.conf ]
then
  LIBRARY=$(grep ^music_directory /etc/mpd.conf | awk {'print $2'} | sed -e 's/"//g')
  [ "$LIBRARY" != "" ] && [ ! -e /usr/share/mympd/htdocs/library ] && ln -s "$LIBRARY" /usr/share/mympd/htdocs/library
else
  echo "/etc/mpd.conf not found, you must link your music_directory manually to /usr/share/mympd/htdocs/library"
fi

echo "Linking pics directory"
[ -e /usr/share/mympd/htdocs/pics ] || ln -s /var/lib/mympd/pics /usr/share/mympd/htdocs/

if [ -d /etc/systemd ]
then
  echo "Installing systemd service"
  [ -d /usr/lib/systemd/system ] || mkdir -p /usr/lib/systemd/system 
  if [ contrib/mympd.service -nt /usr/lib/systemd/system/mympd.service ]
  then
    cp contrib/mympd.service /usr/lib/systemd/system/
    systemctl daemon-reload
  fi
  systemctl enable mympd
fi

# move config into place unless already existing
if [ ! -f /etc/mympd/mympd.conf ]
then 
  mv /etc/mympd/mympd.conf.dist /etc/mympd/mympd.conf
else
  echo "mympd.conf installed as mympd.conf.dist"
fi

if [ -d /etc/mympd/ssl ]
then
  echo "Certificates already created"
else
  echo "Creating certificates"
  sudo /usr/share/mympd/crcert.sh
fi

echo "myMPD installed"
echo "Edit /etc/mympd/mympd.conf before starting myMPD"