#!/bin/bash

if [ "$IN_CHROOT" != "1" ] ; then
    echo This is supposed to run inside the chroot, oops
    exit 1
fi

set -e
set -x

# Move stuff to the right places
install -D -m 0644 files/nilmbuntu.png /usr/share/xfce4/backdrops/nilmbuntu.png
install -D -m 0644 files/casper.conf /etc/casper.conf
install -D -m 0644 files/hosts.nilm /etc/hosts.nilm

# Copy hosts for now (although it will get overwritten at boot)
cat /etc/hosts.nilm >> /etc/hosts

# Upgrade packages
apt update
apt -y dist-upgrade
apt -y --purge autoremove

# Remove old kernels, and reinstall the latest one (to make sure
# it's present in /boot)
LATEST_KERNEL=$(ls --sort=version /lib/modules/ | tail -n 1)
for VER in $(ls --sort=version /lib/modules/) ; do
    if [ $VER != $LATEST_KERNEL ] ; then
        apt -y --purge remove "linux-.*$VER"
    fi
done
apt -y --reinstall install linux-image-${LATEST_KERNEL}

# Disable upgrade popups
sed -i -s -e 's/Prompt=.*/Prompt=never/g' \
    /etc/update-manager/release-upgrades || true

# Set up & install postfix for local mail delivery
debconf-set-selections <<"EOF"
postfix postfix/mailname string localdomain
postfix postfix/main_mailer_type select Local only
EOF
apt -y install postfix

# Required packages
apt -y install \
    python3 \
    python3-venv \
    python3-pip \
    git \
    build-essential \
    apache2 \
    libapache2-mod-wsgi

# Install other useful stuff
apt -y install \
    adb \
    avrdude \
    curl \
    debconf-utils \
    devscripts \
    dfu-programmer \
    dlocate \
    emacs \
    emacs-goodies-el \
    esptool \
    firefox \
    flashrom \
    gddrescue \
    gnuplot \
    help2man \
    ipython3 \
    libnewlib-arm-none-eabi \
    libreoffice \
    libstdc++-arm-none-eabi-newlib \
    texlive \
    mailutils \
    moreutils \
    mutt \
    octave \
    octave-missing-functions \
    octave-signal \
    openocd \
    openssh-server \
    openssl \
    openvpn \
    screen \
    silversearcher-ag \
    tcpdump \
    zip

# Install the packages required for en_US language support
# This avoids a prompt and package download at first install
apt -y install $(/usr/bin/check-language-support -l en_US)

# Set up timezone to America/New_York for the live CD
ln -sf /usr/share/zoneinfo/America/New_York /etc/localtime
dpkg-reconfigure -f noninteractive tzdata

# Put some default desktop shortcuts in place
DESKTOP=/etc/skel/Desktop
mkdir -p $DESKTOP
cp /usr/share/applications/exo-terminal-emulator.desktop $DESKTOP || true
cp /usr/share/applications/exo-web-browser.desktop $DESKTOP || true
chmod +x $DESKTOP/*

# Custom background image
XML=/etc/xdg/xdg-xubuntu/xfce4/xfconf/xfce-perchannel-xml/xfce4-desktop.xml
BG=/usr/share/xfce4/backdrops/nilmbuntu.png
apt -y install xmlstarlet
xmlstarlet ed -L -u "//property[@name='image-path']/@value" -v "$BG" $XML
xmlstarlet ed -L -u "//property[@name='image-style']/@value" -v "3" $XML

# Make Firefox nicer
install -D -m 0644 files/syspref.js /etc/firefox/syspref.js

# Create NILM user.  This should happen after anything that we put in
# /etc/skel, since files get copied from there.  Note that this user
# is the same as what we have in the preseed file and casper.conf
if ! getent passwd nilm ; then
   adduser --gecos "NILM User" --disabled-password nilm
fi

# Make sure locate databases are up-to-date
/etc/cron.daily/mlocate
/etc/cron.daily/dlocate

# Make sure initramfs was regenerated with casper changes.
# Manipulate some config files to avoid host stuff leaking through.
echo 'RESUME=none' > /etc/initramfs-tools/conf.d/resume
mv /etc/crypttab /etc/crypttab-old
CASPER_GENERATE_UUID=1 update-initramfs -u
rm /etc/initramfs-tools/conf.d/resume
mv /etc/crypttab-old /etc/crypttab