toggle_darkmode

#!/bin/bash

# Set the DISPLAY variable (usually :0 for the primary display)
export DISPLAY=:0
logger -t toggle_darkmode "DISPLAY: $DISPLAY"

# Attempt to find the DBUS_SESSION_BUS_ADDRESS
# Get all PIDs for gnome-session
GNOME_PIDS=$(pgrep gnome-session)

# Check if any PIDs were found
if [ -z "$GNOME_PIDS" ]; then
    logger -t toggle_darkmode "Could not find any running gnome-session PIDs."
    exit 1
fi

DBUS_ADDRESS_FOUND=""
for PID_SINGLE in $GNOME_PIDS; do
    # Try to extract DBUS_SESSION_BUS_ADDRESS from this specific PID's environment
    CURRENT_DBUS_ADDRESS=$(grep -z DBUS_SESSION_BUS_ADDRESS "/proc/$PID_SINGLE/environ" | tr '\0' '\n' | cut -d= -f2-)
#    CURRENT_DBUS_ADDRESS=$(grep -z DBUS_SESSION_BUS_ADDRESS "/proc/$PID_SINGLE/environ" | cut -d= -f2-)

    if [ -n "$CURRENT_DBUS_ADDRESS" ]; then
        DBUS_ADDRESS_FOUND="$CURRENT_DBUS_ADDRESS"
    export DBUS_SESSION_BUS_ADDRESS="$DBUS_ADDRESS_FOUND"
        break # Found it, so exit the loop
    else
        logger -t toggle_darkmode "PID $PID_SINGLE does not have DBUS_SESSION_BUS_ADDRESS."
    fi
done
logger -t toggle_darkmode "DBUS_SESSION_BUS_ADDRESS: $DBUS_SESSION_BUS_ADDRESS"

# Funktion zum Umschalten auf Dark Mode
set_dark_mode() {
    # Gnome
    gsettings set org.gnome.desktop.interface gtk-theme 'Adwaita-dark'
    gsettings set org.gnome.shell.extensions.user-theme name 'Adwaita-dark'
    gsettings set org.gnome.desktop.interface color-scheme 'prefer-dark'

    # wezterm, ensure that config.automatically_reload_config = true
    sed -i 's/config.color_scheme = .*/config.color_scheme = "Catppuccin Mocha"/' ~/.wezterm.lua

    logger -t toggle_darkmode "entering dark mode"
}

# Funktion zum Umschalten auf Light Mode
set_light_mode() {
    # Gnome
    gsettings set org.gnome.desktop.interface gtk-theme 'Adwaita'
    gsettings set org.gnome.shell.extensions.user-theme name 'Adwaita'
    gsettings set org.gnome.desktop.interface color-scheme 'prefer-light'

    # wezterm, ensure that config.automatically_reload_config = true
    sed -i 's/config.color_scheme = .*/config.color_scheme = "Catppuccin Latte"/' ~/.wezterm.lua

    logger -t toggle_darkmode "entering light mode"
}

# Funktion für den Auto-Modus basierend auf Uhrzeit
set_auto_mode() {
    # Aktuelle Stunde im 24h-Format (z. B. 14 für 14:00 Uhr)
    current_hour=$(date +%H)

    # Zwischen 6:00 und 20:00 Uhr Light Mode, sonst Dark Mode
    if [ "$current_hour" -ge 6 ] && [ "$current_hour" -lt 20 ]; then
        set_light_mode
    else
        set_dark_mode
    fi
}

if [ "$1" = "light" ]; then
    set_light_mode
elif [ "$1" = "dark" ]; then
    set_dark_mode
elif [ "$1" = "auto" ]; then
    set_auto_mode
else
    echo "Unknown parameter, must be [light|dark|auto]."
    exit 1
fi