SECTION() { printf "\n$1\n"; }
highlight() { printf "$1\n"; }
subhighlight() { printf "$1\n"; }

link() {
	test -e "$2" -o -h "$2" || $($HOME/.local/bin/scripts/checkaccess -w "$2" || echo sudo) ln -sv "$@"
}

# So that bootstrapping works right after cloning with the correct env variables
source "$HOME/.zshenv"

# TODO: Setup instalee

SECTION "Dotfiles Preparation"

highlight "Remove conflicting Manjaro Sway Dotfiles"
rmexist() {
	for arg
	do test -e "$arg" && printf "$arg: " && rm -vrI "$arg"
	done
}
rmexist "$XDG_CONFIG_HOME/nvim/init.lua" "$HOME/.emacs.d/"

highlight 'Resolve Home Symlinks'
touch $HOME/.local/state/wget-hsts
mkdir -p "$XDG_CONFIG_HOME/audacity"
find $HOME -maxdepth 1 -type l -exec file {} + |
	grep '.local/share' | grep broken |
	sed 's/.* //' | xargs -r mkdir -p

highlight 'Other Application Symlinks'
link "$XDG_CONFIG_HOME/bash/aliases.bash" "$HOME/.bashrc"
link "$HOME/.ssh/config" "$XDG_CONFIG_HOME/ssh"
link "$XDG_DATA_HOME/.cpan/CPAN/MyConfig.pm" "$XDG_CONFIG_HOME/cpan/MyConfig.pm"
link "$XDG_STATE_HOME/gradle/gradle.properties" "$XDG_CONFIG_HOME/gradle.properties"

#template() {
#	local dir=$(dirname "$1")
#	local file=${1/.template}
#	test -d "$dir" && ! test -f "$file" &&
#		cp -iv "$1" "$file"
#}
#template "$XDG_CONFIG_HOME/doom/user.template.el"
#template "$XDG_CONFIG_HOME/MuseScore/MuseScore3.template.ini"
# TODO JOSM
# TODO audacity
# TODO puddletag

SECTION 'Application Setup'

highlight "CLI Applications"

# TODO update repo users, replace slow omz
# checkout https://starship.rs/ over p10k
subhighlight "Zsh"
test -n "$ZSH" || export ZSH="${XDG_DATA_HOME:-$HOME/.local/share}/zsh/oh-my-zsh"
mkdir -p "$(dirname $ZSH)"
oldzsh="$XDG_STATE_HOME/zsh/oh-my-zsh" && test ! -d "$ZSH" -a -d "$oldzsh" && mv -vn $oldzsh $ZSH
cloneshallow() {
	url=https://github.com/$2/$1.git
	dir="${3:-$ZSH/plugins/$1}"
	mkdir -p "$(dirname $dir)"
	if test -d "$dir"
	then git -C "$dir" remote set-url origin $url
	else git clone --depth=1 $url "$dir"
	fi
}
cloneshallow oh-my-zsh                  robbyrussell       "$ZSH"
cloneshallow powerlevel10k              romkatv            "$ZSH/themes/powerlevel10k"
cloneshallow fast-syntax-highlighting   zdharma-continuum
cloneshallow zsh-autosuggestions        zsh-users
cloneshallow zsh-vim-mode               softmoth
case "$(grep "^$USER" /etc/passwd | sed 's/.*://')" in (*zsh|'');; (*) chsh -s $(which zsh);; esac

if command -v nvim >/dev/null 2>&1; then
  subhighlight "Updating NeoVim Plugins"
  # TODO pynvim?
  nvim '+PlugClean!' '+PlugUpgrade' '+PlugUpdate' '+qall'
fi

subhighlight "Setup kakoune plugin loader"
cloneshallow plug.kak robertmeta "$XDG_CONFIG_HOME/kak/plugins/plug.kak"
# TODO kakoune research: quit doc buffer, multi cursor, work on line

# TODO first brew install - insert brew bundle? instalee migration from bundle?
subhighlight 'Doom Emacs'
git clone --depth 1 https://github.com/hlissner/doom-emacs ${XDG_CONFIG_HOME:-$HOME/.config}/emacs && ${XDG_CONFIG_HOME:-$HOME/.config}/emacs/bin/doom install

case $(uname) in (Darwin) exit 0;; esac
# LINUX SPECIFIC

link python /usr/bin/python3
# TODO don't link these prematurely, can lead to installation conflicts
# may try /usr/local/bin
# Don't think this is needed anymore though
link fdfind /usr/bin/fd
link batcat /usr/bin/bat

SECTION "Linux System (/etc)"

highlight "Sudoers defaults"
echo 'Defaults	editor=/usr/bin/nvim
Defaults        env_keep="EDITOR"' |
	sudo tee /etc/sudoers.d/editor
echo 'Defaults	timestamp_timeout=120
Defaults	passwd_timeout=30' |
	sudo tee /etc/sudoers.d/timeout
subhighlight "password-free reboot"
echo "$USER ALL = NOPASSWD: /usr/bin/halt, /usr/bin/shutdown, /usr/bin/reboot, /usr/bin/poweroff, /bin/reboot, /bin/shutdown. /usr/bin/umount" |
	sudo tee /etc/sudoers.d/shutdown

highlight "Set default user in tty1-4"
agetty="$(sudo which agetty)" &&
	sudo mkdir -p /etc/systemd/system/getty@tty{1,2,3,4}.service.d &&
	echo "[Service]
Restart=Never
ExecStart=
ExecStart=-$agetty --skip-login --login-options $USER %I" |
	sudo tee /etc/systemd/system/getty@tty1.service.d/override.conf /etc/systemd/system/getty@tty2.service.d/override.conf /etc/systemd/system/getty@tty3.service.d/override.conf

highlight "Sysyadm Setup"
if test -d "/etc/yadm/repo.git/"
then sy l
else echo "" | sy clone
fi

highlight "Arch Pacman"
if test -f /etc/pacman.conf; then
	# TODO adjust makepkg.conf to at least half of processor count - see SPARE_CORES
	subhighlight "Pacman"
	sudo sed -i 's/#Parallel/Parallel/;s/#Color/Color/;s/#UseSyslog/UseSyslog/' /etc/pacman.conf
	sudo sed -i "$(grep -n "\[multilib\]" /etc/pacman.conf | cut -d':' -f1),+1 s/# *//" /etc/pacman.conf
	if which reflector 2>/dev/null
	then subhighlight "Reflector"
	echo "--save /etc/pacman.d/mirrorlist
		--protocol https
		--country Germany
		--latest 50
		--score 10
		--sort rate" | sudo tee /etc/xdg/reflector/reflector.conf
		sudo systemctl start reflector &
		sudo systemctl enable reflector.timer
	fi
fi

SECTION 'Linux Services'

highlight "Cron"
sudo systemctl enable --now cronie
if test -d "/etc/rsyslog.d"; then
	echo 'cron.*				/var/log/cron.log' | sudo tee /etc/rsyslog.d/60-cron.conf
	hasService=$(which service 2>/dev/null)
	test "$hasService" && sudo service rsyslog restart || sudo systemctl restart rsyslog
	test "$hasService" && sudo service cron reload || sudo systemctl reload cronie
fi

highlight "SSH Permissions"
chmod og= $HOME/.ssh -R
test -d "$HOME/.ssh/keys" && chmod a+r $HOME/.ssh/keys/*.pub

_ovpn="$XDG_DATA_HOME/openvpn"
test -d "$_ovpn" &&
	highlight 'OpenVPN Permissions'
	sudo rm -vdf /etc/openvpn/client &&
	sudo ln -vsf "$_ovpn" /etc/openvpn/client &&
	sudo chmod -vR ugo-rwx,ug+rX,u+w "$_ovpn" &&
	sudo chown -vR janek:openvpn "$_ovpn"

test "$DISPLAY" || exit 0

SECTION "Linux App Setup"

#dasht-docsets-install haskell rails_4 >/dev/null

subhighlight "Enable MPD"
mkdir "${XDG_STATE_HOME}/mpd"
sudo systemctl enable --now mpd
mpc update

highlight "Desktop Applications"
link "$XDG_DATA_HOME/applications/signal-tray.desktop" "$XDG_CONFIG_HOME/autostart/"
link "/usr/share/applications/stretchly.desktop" "$XDG_CONFIG_HOME/autostart/"
mx="$HOME/.mixxx"
if ! test -d "$mx"
then mkdir "$mx" && ln -sv -t "$mx" ${XDG_DATA_HOME:-$HOME/.local/share}/mixxx/* $XDG_CONFIG_HOME/mixxx/*
fi