#!/usr/bin/env bash

set -euo pipefail

# function to keep sudo from timing out
function func_dont_timeout {
    while true; do
        sudo -v
        sleep 60
    done
}

# check if user is root
if [ "$EUID" -ne 0 ]; then
    sudo -v
fi

# keep sudo active in background
func_dont_timeout &

cat <<EOF
############################################################
###################### INSTALL CONFIG ######################
############################################################
EOF

echo
cat <<EOF
########################################
################ Setup  ################
########################################
EOF

# get script directory
scriptloc="$BASH_SOURCE"

# Use temporary directory for download
tempdir="$(mktemp -d)"

echo "Checking config file"

#clone this repo
git clone -b main https://gitea.exu.li/realstickman/configs.git "$tempdir" &>/dev/null

# check if the install scripts are the same
# NOTE Arguments get passed automatically now
if ! cmp --silent "$scriptloc" "$HOME/scripts/arch-config.sh"; then
    echo Removed old config file and launched new one.
    cp "$tempdir/arch-config/scripts/arch-config.sh" "$HOME/scripts/" && bash ~/scripts/arch-config.sh "$@"
fi

####################
#### Arguments  ####
####################

copy_firefox=0

# handle arguments
# TODO
if [[ "$#" -eq 1 ]]; then
    if [[ "$1" == "-f" || "$1" == "--firefox" ]]; then
        copy_firefox=1
    elif [[ "$1" == "-h" || "$1" == "--help" ]]; then
        echo "-h, --help     Show help menu"
        echo "-f, --firefox  Update firefox config"
        exit 0
    fi
elif [[ "$#" -gt 1 ]]; then
    echo "Too many arguments"
    exit 1
fi

echo
cat <<EOF
########################################
################ Backup ################
########################################
EOF

# Collect all PIDs of background processes that shoulb be waited for
pids=""

####################
##### Cleaning #####
####################

#delete previous backups
echo Removing old backup
if [[ -d ~/old_dat ]]; then
    rm -rf ~/old_dat
fi

####################
##### Creating #####
####################

# make new backup
echo Creating backup
mkdir -p ~/old_dat/
mkdir -p ~/old_dat/.mozilla
mkdir -p ~/old_dat/scripts
mkdir -p ~/old_dat/.ssh

# make subdirectories
mkdir -p ~/old_dat/.local/share

#config folders
if [[ -d ~/.config/ ]]; then
    rsync -ah ~/.config/ ~/old_dat/
fi

# .ssh folder
if [[ -d ~/.ssh ]]; then
    rsync -ah ~/.ssh ~/old_dat/
fi

# local folder
if [[ -d ~/.local/share/applications ]]; then
    rsync -ah ~/.local/share/applications/ ~/old_dat/.local/share/
fi

# mozilla
if [[ -d ~/.mozilla ]]; then
    rsync -ah ~/.mozilla ~/old_dat/
fi

# scripts
if [[ -d ~/scripts ]]; then
    rsync -ah ~/scripts ~/old_dat/
fi

# remove old templates
if [[ -d ~/.config/Vorlagen ]]; then
    rm -r ~/.config/Vorlagen
fi

# remove old scripts in path
if [[ -d ~/scripts/in_path ]]; then
    rm -r ~/scripts/in_path
fi

# remove old script pieces
if [[ -d ~/scripts/pieces ]]; then
    rm -r ~/scripts/pieces
fi

# remove old polybar scripts
if [[ -d ~/scripts/polybar ]]; then
    rm -r ~/scripts/polybar
fi

# remove archived scripts
if [[ -d ~/scripts/archive ]]; then
    rm -r ~/scripts/archive
fi

echo
cat <<EOF
########################################
########### Copy New Config  ###########
########################################
EOF

#copy folders
cp -r "$tempdir/arch-config/.config/" ~/
cp -r "$tempdir/arch-config/.local/" ~/
cp -r "$tempdir/arch-config/.ssh" ~/

# copy firefox only if "-f" or "--firefox" is given as argument
# TODO
if [[ copy_firefox -eq 1 ]]; then
    if [[ -d ~/.mozilla/firefox ]]; then
        # NOTE check if firefox default-release directory exists. 1 is good, 0 is bad
        firefoxdir=$(find ~/.mozilla/firefox/ -name \*.default-release | wc -l)
        if [[ $firefoxdir -eq 1 ]]; then
            cp -r "$tempdir/arch-config/.mozilla/firefox/default-release/"* ~/.mozilla/firefox/*.default-release/
        else
            echo "Please launch firefox and then update the config again"
        fi
    else
        echo "Please launch firefox and then update the config again"
    fi
fi

#copy single files
cp -r "$tempdir/arch-config/.face" ~/
cp -r "$tempdir/arch-config/.gtkrc-2.0" ~/
cp -r "$tempdir/arch-config/.gitconfig" ~/
echo Copied files

#copy scripts
mkdir -p "$HOME/scripts"
cp -r "$tempdir/arch-config/scripts/" ~/

#copy stuff to /etc
sudo cp -r "$tempdir/arch-config/etc" /

# Copy pacman config depending on system architecture
# This is required due to differences in available repos between Arch on x86_64 and ALARM for aarch64
if [ "$(uname --machine)" == "x86_64" ]; then
    sudo cp "/etc/pacman-x86_64.conf" "/etc/pacman.conf"
fi

echo Copied folders

# Set xdg-user-dirs as environment variables
ln -sf "$HOME/.config/user-dirs.dirs" "$HOME/.config/environment.d/user-dirs.dirs.conf"

echo
cat <<EOF
####################
##### Bash Cat #####
####################
EOF

# download cat as cat
echo "Installing bash cat"
mkdir "$tempdir/bash-cat-with-cat"
git clone https://github.com/RealStickman/bash-cat-with-cat.git "$tempdir/bash-cat-with-cat" &>/dev/null
cp "$tempdir/bash-cat-with-cat/cat.sh" "$HOME/scripts/pieces/cat.sh"

echo
cat <<EOF
########################################
############### Services ###############
########################################
EOF

# reload systemd user scripts
systemctl --user daemon-reload

# set systemd services for vmware (only if installed)
if [[ $(pacman -Q | grep vmware-workstation) ]]; then
    sudo systemctl enable --now vmware-networks.service || echo "Service failed, continuing"
    sudo systemctl enable --now vmware-usbarbitrator.service || echo "Service failed, continuing"
fi

# FIXME temporary migrate container store
if [ -f "$HOME/.config/containers/storage.conf" ]; then
    rm "$HOME/.config/containers/storage.conf"
    podman system reset -f
fi

# enable fstrim timer
sudo systemctl enable fstrim.timer

# enable btrfs maintenance timers
if [[ $(pacman -Q | grep btrfsmaintenance) ]]; then
    sudo systemctl restart btrfsmaintenance-refresh.service
    sudo systemctl enable btrfs-balance.timer
    sudo systemctl enable btrfs-scrub.timer
fi

# enable systemd-timesyncd (ntp service)
sudo timedatectl set-ntp true

# enable ssh-agent
systemctl --user enable --now ssh-agent

# enable reflector timer
if [[ $(pacman -Q | grep reflector) ]]; then
    sudo systemctl enable reflector.timer
fi

# enable vnstat
sudo systemctl enable vnstat

echo
cat <<EOF
########################################
################ Groups ################
########################################
EOF

# set systemd and group for vmware (only if installed)
if [[ $(pacman -Q | grep vmware-workstation) ]]; then
    echo "Setting up group for vmware"
    sudo groupadd -f vmware
    sudo gpasswd -a "$USER" vmware 1>/dev/null
fi

# set group for libvirt
if [[ $(pacman -Q | grep libvirt) ]]; then
    echo "Setting group for libvirt"
    sudo gpasswd -a "$USER" libvirt 1>/dev/null
fi

# set group for wireshark (only if installed)
# TODO
if [[ $(pacman -Q | grep wireshark-qt) ]]; then
    echo "Setting up group for wireshark"
    sudo groupadd -f wireshark
    sudo gpasswd -a "$USER" wireshark 1>/dev/null
fi

# add group for corectrl
if [[ $(pacman -Q | grep corectrl) ]]; then
    echo "Setting up group for corectrl"
    sudo groupadd -f corectrl
    sudo gpasswd -a "$USER" corectrl 1>/dev/null
fi

# group for controlling backlight
echo "Setting group for backlight"
sudo groupadd -f video
sudo gpasswd -a "$USER" video 1>/dev/null

# render group
echo "Setting group for GPU passing"
sudo groupadd -f render
sudo gpasswd -a "$USER" render 1>/dev/null

# group for monitoring wireguard
echo "Setting group for wireguard"
sudo groupadd -f wireguard
sudo gpasswd -a "$USER" wireguard 1>/dev/null

echo
cat <<EOF
########################################
############# Misc Config  #############
########################################
EOF

# set permissions for sudoers.d to root only
sudo chown root:root -R /etc/sudoers.d/
sudo chmod 600 -R /etc/sudoers.d/

#make bash scripts executable
chmod +x -R ~/scripts

# make applications executable
chmod +x -R ~/.local/share/applications

#remove downloaded folder
# TODO
rm -rf ~/config

echo
cat <<EOF
########################################
############## Reloading  ##############
########################################
EOF

# reload applications
update-desktop-database ~/.local/share/applications/

# sync doom-emacs only if it is installed
if [[ -f ~/.config/emacs/bin/doom ]]; then
    ~/.config/emacs/bin/doom sync &
    pids="$pids $!"
fi

# disable freedesktop notification daemon
#if [[ -f "/usr/share/dbus-1/services/org.freedesktop.Notifications.service" ]]; then
#    sudo mv /usr/share/dbus-1/services/org.freedesktop.Notifications.service /usr/share/dbus-1/services/org.freedesktop.Notifications.service.disabled
#fi

# wait for all background jobs to finish
wait $pids && echo "Finished background jobs"

echo
cat <<EOF
########################################
############### Finished ###############
########################################
EOF

#output
echo -e "\033[38;2;20;200;20mFinished updating everything!\033[0m"
echo Launching new shell!

# reminder for enable additional gpu features for corectrl with amd gpus
if [[ $(pacman -Q | grep corectrl) ]]; then
    echo -e "\033[38;2;200;20;20mRemember to set \"amdgpu.ppfeaturemask=0xffffffff\" in the kernel!!\033[0m"
fi

# reload user default shell
exec "$(getent passwd $LOGNAME | cut -d: -f7)"

# exit successfully
exit 0