#!//usr/bin/env bash

## CONSTANTS
## ---------

GIT_BASE_URL="https://git.artcode.re/pvincent/debian-gnome"

BASEDIR=$(readlink -f "$(dirname "$0")/..")
ALLOWED_USERS=$(id -un) #CUSTOMIZE if needed!
REQUIRED_PACKAGES=(
    bash-completion
    vim git wget curl
    htop jq unzip
)


## FUNCTIONS
## ---------

function trap_error() {
    error_code=$1
    error_line=$2

    printf "\nEXIT #${error_code} due to error at line ${error_line} : \n-----------------------------------------\n"
    sed "${error_line}q;d" $0
    echo
    exit $error_code
}

function runVoid() {
    trap - ERR
    local COMMAND="$@"
    bash -c "${COMMAND}" >/dev/null 2>&1
    runVoidError=$?
    trap 'trap_error $? $LINENO' ERR
}

function askConfirmation() {
    case "$1" in
    y | Y | yes | YES)
        QUESTION="(Y/n)?"
        DEFAULT=0
        ;;
    *)
        QUESTION="(y/N)?"
        DEFAULT=1
        ;;
    esac
    read -p "$QUESTION : " choice
    case "$choice" in
    y | Y | yes | YES) return 0 ;; #true
    n | no | N | NO) return 1 ;;   #false
    *) return $DEFAULT ;;
    esac
}

function upgrade {
    echo "# updating repositories"
    echo "==================="
    if [[ $(date --date='-12 hours' +%s) -gt $(date -d "$(stat -c %y /var/lib/apt/lists/partial)" +%s) ]]; then
        sudo apt update
        sudo apt autoremove -y
    else
        echo "repositories recently updated!"
    fi
}


function apt_required_packages {
	echo "# required packages"
	echo "==================="
	for package in ${REQUIRED_PACKAGES[@]}; do
	    runVoid dpkg-query --status $package
	    if [ $runVoidError -ne 0 ]; then
	        echo -n "installing package <$package> ... "
	        sudo DEBIAN_FRONTEND=noninteractive apt install -y $package
	        echo "DONE"
	    fi
	done
}

function fix_input_sources {
	echo "# fix input sources containing french variants"
	echo "=============================================="
	if gsettings get org.gnome.desktop.input-sources sources | grep fr+; then
	    gsettings set org.gnome.desktop.input-sources sources "[('xkb', 'fr')]"
	    echo no more french variant found, fixed
	else
	    echo no french variant found, ok!
	fi
}

function miaou_bash {
	echo "## miaou-bash"
	echo "=============="
	if ! command -v upgrade-miaou-bash >/dev/null; then
	    curl https://git.artcode.re/miaou/miaou-bash/raw/branch/main/install.sh | sudo bash -s
	else
	    echo "miaou-bash already installed!"
	    upgrade-miaou-bash
	fi
}

function openssh {
echo "## openssh-server"
echo "================="

echo TODO...
# PGKNAME='openssh-server'
# runVoid dpkg-query --status $PGKNAME
# if [ $runVoidError -ne 0 ]; then
#     set -e
#     sudo apt install -y $PGKNAME
#     sudo /opt/miaou-bash/tools/append_or_replace "^#\?PermitRootLogin.*$" "PermitRootLogin no" /etc/ssh/sshd_config
#     sudo /opt/miaou-bash/tools/append_or_replace "^#\?PasswordAuthentication.*$" "PasswordAuthentication no" /etc/ssh/sshd_config
#     sudo /opt/miaou-bash/tools/append_or_replace "^#\?AllowUsers.*$" "AllowUsers $ALLOWED_USERS" /etc/ssh/sshd_config
#     sudo systemctl restart sshd
#     set +e
# else
#     echo "${PGKNAME} already installed!"
# fi

}

function faster_grub {
	echo "## grub faster and smarter"
	echo "=========================="
	if grep -q GRUB_TIMEOUT=5 /etc/default/grub; then
	    echo "grub was not modified yet, applying changes..."
	    sudo /opt/miaou-bash/tools/append_or_replace "^GRUB_TIMEOUT=5$" "GRUB_TIMEOUT=0" /etc/default/grub
	    sudo update-grub
	    echo OK
	else
	    echo changes already done!
	fi
}


function true_firefox {
echo "## firefox latest"
echo "================="
firefox_lang=$(echo $LANG | cut -d. -f1)

[[ $firefox_lang =~ C|en|es ]] && firefox_lang="en-US"
echo "$firefox_lang"
if [[ ! /usr/local/bin/firefox -ef /opt/firefox/firefox ]]; then
    set -e
    cd /tmp
    firefox_archive_url=$(curl -s "https://download.mozilla.org/?product=firefox-latest-ssl&os=linux64&lang=$firefox_lang" | cut -d '"' -f2)
    wget "$firefox_archive_url"
    firefox_archive=${firefox_archive_url##*/}
    sudo mkdir /opt/firefox -p
    sudo chown $USER /opt/firefox
    tar -xf "$firefox_archive" -C /opt
    cat <<EOF | sudo tee -a /usr/share/applications/firefox.desktop
[Desktop Entry]
Name=Firefox
Comment=Web Browser
Exec=/opt/firefox/firefox %u
Terminal=false
Type=Application
Icon=/opt/firefox/browser/chrome/icons/default/default128.png
Categories=Network;WebBrowser;
MimeType=text/html;text/xml;application/xhtml+xml;application/xml;application/vnd.mozilla.xul+xml;application/rss+xml;application/rdf+xml;image/gif;image/jpeg;image/png;x-scheme-handler/http;x-scheme-handler/https;
StartupNotify=true
StartupWMClass=Navigator
Actions=new-window;new-private-window;profile-manager;

[Desktop Action new-window]
Name=New Window
Exec=/opt/firefox/firefox --new-window %u

[Desktop Action new-private-window]
Name=New Private Window
Exec=/opt/firefox/firefox --private-window %u

[Desktop Action profile-manager]
Name=Profile Manager
Exec=/opt/firefox/firefox -P %u
EOF
    sudo ln -sf /opt/firefox/firefox /usr/local/bin/firefox
    sudo update-alternatives --install /usr/bin/x-www-browser x-www-browser /opt/firefox/firefox 200 && sudo update-alternatives --set x-www-browser /opt/firefox/firefox
    sudo apt remove -y firefox-esr
    sudo apt install -y libdbus-glib-1-2
    set +e
else
    echo "firefox latest already installed!"
fi

echo "## firefox by default"
echo "====================="
xdg-settings set default-web-browser firefox.desktop


}

function gnome_settings {
	echo "## gnome default settings"
	echo "========================="
	gsettings set org.gnome.nautilus.preferences click-policy 'single'
	gsettings set org.gnome.mutter dynamic-workspaces false
	gsettings set org.gnome.desktop.wm.preferences num-workspaces 1
	gsettings set org.gnome.desktop.peripherals.touchpad tap-to-click true
}

function tilix_default_terminal {
	echo "## prevent displaying desktop entries (gnome-terminal replaced by tilix)"
	echo "========================================================================"
	if [[ ! -f $HOME/.local/share/applications/org.gnome.Terminal.desktop ]]; then
	    cat << 'EOF' > ~/.local/share/applications/org.gnome.Terminal.desktop
[Desktop Entry]
Name=Terminal
Exec=gnome-terminal
NoDisplay=true
Icon=org.gnome.Terminal
Type=Application
Categories=GNOME;GTK;System;TerminalEmulator;
StartupNotify=true
StartupWMClass=Gnome-terminal
X-GNOME-SingleWindow=false
OnlyShowIn=GNOME;Unity;
EOF
	else
	    echo Tilix already set up!
	fi

	echo TODO: configure Tilix
	echo 'dconf load /com/gexperts/Tilix/ < tilix.dconf'

}

function no_lock_screen {
	echo "## disable automatic lock screen => use Super_L for LOCK"
	echo "========================================================"
	gsettings set org.gnome.settings-daemon.plugins.power sleep-inactive-ac-type nothing
	gsettings set org.gnome.desktop.screensaver lock-enabled false
}

function favorite_apps {
	echo "# favourite apps"
	echo "#==============="
	runVoid "gsettings get org.gnome.shell favorite-apps | grep firefox-esr"
	if [[ "$runVoidError" == 0 ]]; then
	    gsettings set org.gnome.shell favorite-apps "['org.gnome.Nautilus.desktop','firefox-stable.desktop','org.gnome.Software.desktop']"
	else
	    echo "preserve existing apps!"
	fi
}

function golden_dict {
	echo "## golden dict"
	echo "================"
	if [[ ! -d /usr/share/goldendict/dicts ]]; then
	    sudo git clone --depth 1 https://git.artcode.re/non-free/dicts.git /usr/share/goldendict/dicts
	fi
	if [[ ! -f $HOME/.config/goldendict/config ]] || ! grep -q "path.*/usr/share/goldendict/dicts" $HOME/.config/goldendict/config; then
	    mkdir -p "$HOME/.config/goldendict/"
	    cp "$BASEDIR/lib/goldendict/config" "$HOME/.config/goldendict/"
	    nohup goldendict &
	fi
	mkdir -p $HOME/.config/autostart
	if [[ ! -f $HOME/.config/autostart/org.goldendict.GoldenDict.desktop ]]; then
	    echo -n "autostart GoldenDict ..."
	    ln -sf /usr/share/applications/org.goldendict.GoldenDict.desktop $HOME/.config/autostart/
	    echo OK
	else
	    echo "autostart GoldenDict already installed!"
	fi
}

function gnome_extensions {
	echo "## gnome-shell install several extensions"
	echo "========================================="

	curl https://mise.run | sh
	echo "eval \"\$(/home/pvincent/.local/bin/mise activate bash)\"" >> ~/.bashrc
	source ~/.bashrc
	mise install python
	mise use -g python
	mise exec -- pip3 install --upgrade gnome-extensions-cli

	echo APPINDICATOR
	echo 	Alignment: left
	echo DASH TO DOCK
	echo	icon size: 58
	echo	apparence: default theme
	echo RUNCAT
	echo	idle threshold: 66

	EXTENSIONS=(
	    "dash-to-dock@micxgx.gmail.com"
	    "appindicatorsupport@rgcjonas.gmail.com"
	    "runcat@kolesnikov.se"
	)
	for extension in "${EXTENSIONS[@]}"; do
	    if [[ ! -d $HOME/.local/share/gnome-shell/extensions/$extension ]]; then
	        gext install "$extension"
	        sudo cp "$HOME"/.local/share/gnome-shell/extensions/"$extension"/schemas/*.gschema.xml /usr/share/glib-2.0/schemas/
	    else
	        echo "extension <${extension}> already installed!"
	    fi
	done
	sudo glib-compile-schemas /usr/share/glib-2.0/schemas/

echo "# gnome extra settings"
echo "======================"
# gsettings set org.gnome.shell.extensions.system-monitor show-tooltip true
# gsettings set org.gnome.shell.extensions.system-monitor cpu-show-text false
# gsettings set org.gnome.shell.extensions.system-monitor cpu-graph-width 60
# gsettings set org.gnome.shell.extensions.system-monitor memory-display false
# gsettings set org.gnome.shell.extensions.system-monitor net-display false
# gsettings set org.gnome.shell.extensions.system-monitor net-show-text false
# gsettings set org.gnome.shell.extensions.system-monitor net-graph-width 40
# gsettings set org.gnome.shell.extensions.system-monitor disk-display false
# gsettings set org.gnome.shell.extensions.system-monitor icon-display false

gsettings set org.gnome.shell.extensions.dash-to-dock apply-custom-theme true
gsettings set org.gnome.shell.extensions.dash-to-dock multi-monitor true

# gsettings set org.gnome.shell.extensions.network-stats display-bytes true
# if [[ $(gsettings get org.gnome.shell.extensions.network-stats show-icon) == "true" ]]; then
#     gsettings set org.gnome.shell.extensions.network-stats show-icon false
#     "$HOME/.local/bin/gext" disable network-stats@gnome.noroadsleft.xyz
#     "$HOME/.local/bin/gext" enable network-stats@gnome.noroadsleft.xyz
# fi
}

function firefox_addons {
	echo "# firefox addons"
	echo "================"
	declare -A FIREFOX_ADDONS
	FIREFOX_ADDONS['uBlock0@raymondhill.net']="3740966/ublock_origin-1.34.0-an+fx.xpi"
	FIREFOX_ADDONS['fr-dicollecte@dictionaries.addons.mozilla.org']='3581786/dictionnaire_francais-7.0b.xpi'
	FIREFOX_ADDONS['chrome-gnome-shell@gnome.org']='898030/gnome_shell_integration-10.1-an+fx-linux.xpi'
	FIREFOX_ADDONS['jid1-ZAdIEUB7XOzOJw@jetpack']='3741831/duckduckgo_privacy_essentials-2021.3.8-an+fx.xpi'

	mkdir -p /opt/firefox/distribution/extensions
	for addon_id in "${!FIREFOX_ADDONS[@]}"; do
	    addon_part_url="${FIREFOX_ADDONS[$addon_id]}"
	    addon_xpi="/opt/firefox/distribution/extensions/${addon_id}.xpi"
	    if [[ ! -f "$addon_xpi" ]]; then
	        echo -n "Firefox addon <$addon_id> installing ..."
	        wget -q "https://addons.mozilla.org/firefox/downloads/file/${addon_part_url}" -O $addon_xpi
	        echo DONE
	    else
	        echo "Firefox addon <$addon_id> already installed!"
	    fi
	done
}

function firefox_settings {
	echo "# Firefox default settings"
	echo "#========================="

	if [[ ! -f /opt/firefox/firefox.cfg ]]; then
	    cat <<EOF | sudo tee -a /opt/firefox/firefox.cfg
// IMPORTANT: Start your code on the 2nd line

lockPref("browser.pocket.enabled", false);
lockPref("extensions.pocket.enabled", false);
lockPref("browser.shell.checkDefaultBrowser", false);
EOF
    cat <<EOF | sudo tee -a /opt/firefox/defaults/pref/autoconfig.js
pref("general.config.filename", "firefox.cfg");
pref("general.config.obscure_value", 0);
EOF

	else
	    echo "Firefox default settings already defined!"
	fi
}

function libre_re_pixmap {
	echo "# libre_re pixmap"
	echo "================="
	if [[ ! -f /usr/share/pixmaps/faces/libre_re.png ]]; then
	    sudo curl -o /usr/share/pixmaps/faces/libre_re.png "$GIT_BASE_URL/raw/branch/master/lib/pixmap/libre_re.png"
	    dbus-send --system --dest=org.freedesktop.Accounts  \
	    --type=method_call --print-reply \
	    /org/freedesktop/Accounts/User$(id -u) \
	    org.freedesktop.Accounts.User.SetIconFile \
	    string:"/usr/share/pixmaps/faces/libre_re.png"
	else
	    echo "pixmap already copied!"
	fi
}

## MAIN
## ---------

[ "$(id -u)" -eq 0 ] && echo 'normal user required' && exit 1

upgrade
apt_required_packages
fix_input_sources
miaou_bash
openssh
faster_grub
true_firefox
gnome_settings
tilix_default_terminal
no_lock_screen
favorite_apps
# golden_dict
 # gnome_extensions
firefox_addons
firefox_settings
libre_re_pixmap

echo
echo
echo "# DEBIAN-GNOME successfully installed!"
echo