#!/bin/bash
set -e

echo "========================================="
echo " Universal Linux Kiosk Installer"
echo " (Debian 13 / Raspberry Pi OS)"
echo "========================================="

USER_NAME=$(whoami)
HOME_DIR="/home/$USER_NAME"
KIOSK_URL="https://aow.de"   # <<< URL ANPASSEN

ARCH=$(dpkg --print-architecture)
echo "Erkannte Architektur: $ARCH"

case "$ARCH" in
    armhf|arm64|amd64)
        CHROMIUM_PKG="chromium"
        ;;
    *)
        echo "Nicht unterstützte Architektur!"
        exit 1
        ;;
esac

echo "Installiere benötigte Pakete..."
sudo apt update
sudo apt install -y $CHROMIUM_PKG unclutter wmctrl xdotool

CHROMIUM_BIN=$(command -v chromium)

if [ -z "$CHROMIUM_BIN" ]; then
    echo "Chromium nicht gefunden!"
    exit 1
fi

echo "Chromium Binary: $CHROMIUM_BIN"

echo "Erstelle kiosk.sh..."

cat <<EOF > $HOME_DIR/kiosk.sh
#!/bin/bash

export DISPLAY=:0

# Warten bis Netzwerk online
until ping -c1 8.8.8.8 &>/dev/null; do
    sleep 2
done

# Bildschirm nie ausschalten (Pi + PC)
xset s noblank
xset s off
xset -dpms

# Mauszeiger ausblenden
unclutter -idle 0.5 -root &

# Chromium Crash-Status fix
sed -i 's/"exited_cleanly":false/"exited_cleanly":true/' ~/.config/chromium/Default/Preferences 2>/dev/null
sed -i 's/"exit_type":"Crashed"/"exit_type":"Normal"/' ~/.config/chromium/Default/Preferences 2>/dev/null

# Chromium unter X11 erzwingen (wichtig für Debian 13 + GNOME)
$CHROMIUM_BIN \
  --ozone-platform=x11 \
  --app="$KIOSK_URL" \
  --start-fullscreen \
  --kiosk \
  --noerrdialogs \
  --disable-infobars \
  --disable-session-crashed-bubble \
  --disable-features=TranslateUI &

# Falls Window Manager zickt → Fullscreen erzwingen
sleep 5
wmctrl -r :ACTIVE: -b add,fullscreen

wait
EOF

chmod +x $HOME_DIR/kiosk.sh

echo "Erstelle Desktop Autostart..."

mkdir -p $HOME_DIR/.config/autostart

cat <<EOF > $HOME_DIR/.config/autostart/kiosk.desktop
[Desktop Entry]
Type=Application
Name=Kiosk
Exec=$HOME_DIR/kiosk.sh
X-GNOME-Autostart-enabled=true
EOF

echo ""
echo "========================================="
echo "Installation abgeschlossen."
echo ""
echo "WICHTIG:"
echo ""
echo "🔹 Raspberry Pi:"
echo "   sudo raspi-config"
echo "   → System Options → Boot / Auto Login → Desktop Autologin"
echo ""
echo "🔹 Debian 13 (GNOME):"
echo "   Einstellungen → Benutzer → Automatische Anmeldung"
echo ""
echo "🔹 Falls Wayland aktiv ist:"
echo "   sudo nano /etc/gdm3/daemon.conf"
echo "   WaylandEnable=false"
echo ""
echo "Danach:"
echo "sudo reboot"
echo "========================================="