#!/bin/bash
#
# Copyright (c) 2020 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/>.
#

# This script is meant to be run from a USB stick, say, to deploy
# this site specific files on a DIU.
#
# This includes
#
# * The private SSH key
# * The `common_values.sh` file
# * The `diu_ui_site_specific.js` admin interface file
# * Any paddles that might need transfer
#
# This will look for a local `data` directory with all the appropriate files
#

BASEDIR="data"
SSH_FILE=$BASEDIR/id_rsa
COM_VAL=$BASEDIR/common_values.sh

SRV_LST=$BASEDIR/server_list
SYNC_PORT=$BASEDIR/sync_port
SYNC_SRV_DESC=$BASEDIR/sync_server_desc
SYNC_TARGET=$BASEDIR/sync_target

DRIVER_FN=$BASEDIR/drivers.txt
EQUIP_FN=$BASEDIR/equipnum.txt
RULE_FN=$BASEDIR/rules.scm

DIU_UI=$BASEDIR/diu_ui_site_specific.js

DO_CLEANUP_INSTALL=1

if [[ "$DO_CLEANUP_INSTALL" != "" ]] ; then
  echo "doing 'cleanup install'"
  bd="../popufare"

  mkdir -p .tmp

  btd=`mktemp -d`
  btd=`basename $btd`
  mv /tmp/$btd .tmp/$btd
  td=".tmp/$btd"

  echo "  Making temporary diectory for original copies ($td)"

  apt-get update
  apt-get install -y espeak mplayer git ppp ppp-dev sox alsa-utils unclutter fbi xinput-calibrator ffmpeg jq matchbox-window-manager libi2c-dev socat figlet vim pwgen minicom
  apt-get autoremove -y

  ###

  ## See https://community.sixfab.com/t/how-to-remove-interface-wwan0/262
  echo "attempting to disable wwan0 interface (adding blacklist for 'qmi_wwan', 'cd_wmd' to /etc/modprobe.d/raspi-blacklist.conf)"
  mkdir -p /etc/modprobe.d
  echo "blacklist qmi_wwan" >> /etc/modprobe.d/raspi-blacklist.conf
  echo "blacklist cdc_wdm" >> /etc/modprobe.d/raspi-blacklist.conf
  chmod 644 /etc/modprobe.d/raspi-blacklist.conf


  ###

  systemctl stop serial-getty@ttyAMA0.service
  systemctl mask serial-getty@ttyAMA0.service

  cp /etc/ppp/ip-up $td/ip-up
  cp /etc/ppp/ip-down $td/ip-down

  cp $bd/busunit/ppp-dialer/etc/ppp/ip-up /etc/ppp/ip-up
  cp $bd/busunit/ppp-dialer/etc/ppp/ip-down /etc/ppp/ip-down

  cp $bd/busunit/scripts/custom /home/bus/bin/custom
  cp $bd/busunit/scripts/connection_tether-ppp.sh /home/bus/bin/connection_tether.sh

  echo "  Saving /boot/cmdline.txt to $td/cmdline.txt"
  cp /boot/cmdline.txt $td/cmdline.txt
  sed -i 's/console=serial0,115200 //' /boot/cmdline.txt


  ###

  mkdir -p /home/pi/bin
  cp $bd/busunit/scripts/welcome_to_popufare.sh /home/pi/bin/welcome_to_popufare.sh
  chown -R pi:pi /home/pi/bin
  echo "/home/pi/bin/welcome_to_popufare.sh" >> /home/pi/.bashrc

  ###

  echo "  compiling and installing ichthyic-passthrough"
  bash -c " cd $bd/busunit/PIU/shim ; ./cmp.sh ; cp ./ichthyic-passthrough /home/bus/bin"

  echo "  installing popufare_monitor script"
  bash -c " cp -f $bd/busunit/scripts/popufare_monitor /home/bus/bin/popufare_monitor"

  echo "  enabling ichthyic (touch /home/bus/config/popufare.ichthyic)"
  bash -c " touch /home/bus/config/popufare.ichthyic ; chown bus:bus /home/bus/config/popufare.ichthyic"

  echo "  setting root crontab to call popufare_monitor (using $bd/busunit/scripts/crontab.root)"
  bash -c " crontab $bd/busunit/scripts/crontab.root "





  newhostname=popufare-`pwgen 8 1`
  echo "  Using hostname $newhostname"

  echo "  Saving /etc/hostname and /etc/hosts to $td"
  cp /etc/hostname $td/hostname
  cp /etc/hosts $td/hosts

  echo "$newhostname" > /etc/hostname

  tfn=`mktemp`
  echo -e '127.0.0.1\tlocalhost' > $tfn
  echo -e '::1\t\tlocalhost ip6-localhost ip6-loopback' >> $tfn
  echo -e 'ff02::1\t\tip6-allnodes' >> $tfn
  echo -e 'ff02::2\t\tip6-allrouters' >> $tfn
  echo '' >> $tfn
  echo -e '127.0.1.1\t'"$newhostname" >> $tfn

  echo "  Creating new /etc/hosts file"
  mv $tfn /etc/hosts
  chmod 644 /etc/hosts

  echo "  Removing stale Xauth cookie"
  xauth remove popufaredev/unix:0

  echo "  Removing stale Singletone for Chromium"
  rm -f /root/.config/[cC]hromium/[Ss]ingleton*
  rm -f /home/pi/.config/[cC]hromium/[Ss]ingleton*
  rm -f /home/bus/.config/[cC]hromium/[Ss]ingleton*

  echo "  REMEMBER TO SET THE LOGIN AND I2C FROM raspi-config!!!!"
  echo "  ....."
  echo "  PRESS ANY KEY TO ENTER raspi-config"
  echo "  ....."
  read

  raspi-config


fi

if [[ -e "$SSH_FILE" ]] ; then
  echo "# deploying SSH file $SSH_FILE to /home/bus/.ssh"
  cp -L -f "$SSH_FILE" /home/bus/.ssh/id_rsa
  cp -L -f "$SSH_FILE" /etc/ppp/id_rsa_bus
  chown bus:bus /home/bus/.ssh/id_rsa
  chmod a-rwx /home/bus/.ssh/id_rsa
  chmod u+r /home/bus/.ssh/id_rsa
  chmod a-rwx /etc/ppp/id_rsa_bus
  chmod u+r /etc/ppp/id_rsa_bus
else
  echo "# FILE NOT FOUND (SSH id_rsa): $SSH_FILE"
fi

if [[ -e "$COM_VAL" ]] ; then
  echo "# deploying common_values.sh file $COM_VAL to /home/bus/config/common_values.sh"
  cp -L -f "$COM_VAL" /home/bus/bin/common_values.sh
else
  echo "# FILE NOT FOUND (COMMON VALUES): $COM_VAL"
fi

###

if [[ -e "$SRV_LST" ]] ; then
  echo "# deploying server list file: $SRV_LST -> /home/bus/config/server/server_list"
  cp -L -f "$SRV_LST" /home/bus/config/server/server_list
else
  echo "# FILE NOT FOUND (SERVER LIST): $SRV_LST"
fi

if [[ -e "$SYNC_PORT" ]] ; then
  echo "# deploying sync port file: $SRV_PORT -> /home/bus/config/server/sync_port"
  cp -L -f "$SYNC_PORT" /home/bus/config/server/sync_port
else
  echo "# FILE NOT FOUND (SYNC PORT): $SYNC_PORT"
fi

if [[ -e "$SYNC_SRV_DESC" ]] ; then
  echo "# deploying server list file: $SRV_SRV_DESC -> /home/bus/config/server/sync_server_desc"
  cp -L -f "$SYNC_SRV_DESC" /home/bus/config/server/sync_server_desc
else
  echo "# FILE NOT FOUND (SYNC DESC): $SYNC_SRV_DESC"
fi

if [[ -e "$SYNC_TARGET" ]] ; then
  echo "# deploying server list file: $SRV_TARGET -> /home/bus/config/server/sync_target"
  cp -L -f "$SYNC_TARGET" /home/bus/config/server/sync_target
else
  echo "# FILE NOT FOUND (SYNC TARGET): $SYNC_TARGET"
fi


###

if [[ -e "$DRIVER_FN" ]] ; then
  echo "# deploying drivers.txt file $DRIVER_FN to /home/bus/config/drivers.txt"
  cp -L -f "$DRIVER_FN" /home/bus/config/drivers.txt
else
  echo "# FILE NOT FOUND (DRIVERS): $DRIVER_FN"
fi

if [[ -e "$EQUIP_FN" ]] ; then
  echo "# deploying equipnum.txt file $EQUIP_FN to /home/bus/config/equipnum.txt"
  cp -L -f "$EQUIP_FN" /home/bus/bin/equipnum.txt
else
  echo "# FILE NOT FOUND (EQUIPNUM): $EQUIP_FN"
fi

if [[ -e "$RULE_FN" ]] ; then
  echo "# deploying rules.scm file $RULE_FN to /home/bus/config/rules.scm"
  cp -L -f "$RULE_FN" /home/bus/config/rules.scm
else
  echo "# FILE NOT FOUND (RULES): $RULE_FN"
fi



###


if [[ -e "$DIU_UI" ]] ; then
  echo "# deploying diu_site_specific file: $DIU_UI -> /home/bus/config/html/js/diu_site_sepcific.js"
  cp -L -f "$DIU_UI" /home/bus/config/html/js/diu_ui_site_specific.js
else
  echo "# FILE NOT FOUND (DIU SITE SPECIFIC): $DIU_UI"
fi

for pfn in `find data -name '*.paddle' -type f` ; do
  bpfn=`basename $pfn`
  echo "# deploying paddle file: $pfn -> /home/bus/config/$bpfn"
  cp -L -f "$pfn" /home/bus/config/$bpfn
done

echo "# done"