#!/bin/bash
#
# Copyright (c) 2019 Clementine Computing LLC.
# 
# This file is part of PopuFare.
# 
# PopuFare is free software: you can redistribute it and/or modify
# it under the terms of the GNU Affero General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# 
# PopuFare 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 Affero General Public License for more details.
# 
# You should have received a copy of the GNU Affero General Public License
# along with PopuFare.  If not, see <https://www.gnu.org/licenses/>.
#

func="$1"
param="$2"

echo "$0 , $func , $param ." >> /tmp/custom.log

if [[ "$func"  == "dim" ]] ; then
  infofn="/tmp/kiosk.info"

  export DISPLAY=':0'
  export XAUTHORITY='/home/pi/.Xauthority'

  if [[ -e "/tmp/kiosk.info" ]] ; then

    disp=`grep DISPLAY $infofn | cut -f2 -d'='`
    auth=`grep XAUTHORITY $infofn | cut -f2 -d'='`

    export DISPLAY="$disp"
    export XAUTHORITY="$auth"

  fi

  /usr/bin/xset dpms force off

elif [[ "$func" == "undim" ]] ; then

  infofn="/tmp/kiosk.info"

  export DISPLAY=':0'
  export XAUTHORITY='/home/pi/.Xauthority'

  if [[ -e "/tmp/kiosk.info" ]] ; then

    disp=`grep DISPLAY $infofn | cut -f2 -d'='`
    auth=`grep XAUTHORITY $infofn | cut -f2 -d'='`

    export DISPLAY="$disp"
    export XAUTHORITY="$auth"

  fi

  /usr/bin/xset s noblank
  /usr/bin/xset s off
  /usr/bin/xset -dpms

elif [[ "$func" == "interface" ]] ; then

  if [[ "$param" == "up" ]]; then
    /sbin/ip link set eth0 up
  elif [[ "$param" == "down" ]] ; then
    /sbin/ip link set eth0 down
  fi

elif [[ "$func" == "ts_calibrate" ]] ; then

  /usr/bin/ts_calibrate

elif [[ "$func" == "volume" ]] ; then

  vol=100
  if [[ "$param" != "" ]] ; then vol=`printf "%2d" "$param" 2> /dev/null` ; fi
  chan=`amixer controls | grep Volume | head -n1 | cut -f1 -d',' | cut -f2 -d'='`
  amixer cset numid=$chan -- ${vol}% > /dev/null

elif [[ "$func" == "say" ]] ; then

  echo "$param" | espeak --stdin --stdout | aplay 2> /dev/null

elif [[ "$func" == "getconfig" ]] ; then

  cfgfn="/home/bus/config/popufare.config"

  if [[ -e $cfgfn ]] ; then
    cat $cfgfn | tr '\n' ' '
  else
    echo "file-not-found"
  fi

elif [[ "$func" == "setconfig" ]] ; then

  cfgfn="/home/bus/config/popufare.config"

  _v=`echo "$param" | tr '=' ' ' | grep -P -o 'volume (\d+)' | cut -f2 -d' '`
  _b=`echo "$param" | tr '=' ' ' | grep -P -o 'brightness (\d+)' | cut -f2 -d' '`
  _d=`echo "$param" | tr '=' ' ' | grep -P -o 'showdimclock (\d+)' | cut -f2 -d' '`

  if [[ "$_v" == "" ]] ; then _v=100; fi
  if [[ "$_b" == "" ]] ; then _b=100; fi
  if [[ "$_d" == "" ]] ; then _d="0"; fi

  _t=`mktemp`
  echo -e "volume=$_v\nbrightness=$_b\nshowdimclock=$_d\n" > $_t
  mv $_t $cfgfn

  cat $cfgfn | tr '\n' ' '

elif [[ "$func" == "reboot" ]] ; then

  /sbin/reboot

fi

exit 0