fixes-package/bin/periodic/fix-theming

#!/bin/bash

# Exit out if the same script is already running in the background
pidof -sq -o %PPID -x "$(basename "$0")" && exit

# Set the directory paths
target_themes_dir="$HOME/.themes"
target_icons_dir="$HOME/.icons"

# Create target directories if they don't exist
mkdir -p "$target_themes_dir" "$target_icons_dir" ||
    { echo "failed to make directories $target_themes_dir & $target_icons_dir"; exit 1; }

sync_theme() {
    # Get the current system theme
    theme_name=$(xfconf-query -c xsettings -p /Net/ThemeName)

    # Cleanup source & target themes directories
    source_themes_dirs=()
    rm -rf "$target_themes_dir"/*

    # Go through each item in $XDG_DATA_DIRS to find all other directories where
    # themes are stored, and save only the current one to source_themes_dirs
    while read -r dir; do
        themes_subdir=${dir%/}/themes/${theme_name}
        [ -d "$themes_subdir" ] && source_themes_dirs+=("$themes_subdir")
    done < <(printf '%s:%s\n' "$XDG_DATA_DIRS" "$HOME/.local/share" | tr ':' '\n' | sort -u)

    rsync -av --delete --progress "${source_themes_dirs[@]}" "$target_themes_dir"
    echo "Directory $target_themes_dir is synchronized with source directories"

    # Enable syncing the current theme with xfwm4 if not already enabled
    [ "$(xfconf-query -c xsettings -p /Xfce/SyncThemes)" != 'true' ] && xfconf-query -c xsettings -p /Xfce/SyncThemes -n -t bool -s true
    # Apply the current theme with gsettings
    gsettings set org.gnome.desktop.interface gtk-theme "$theme_name"
    # Apply the current theme for the all the GTK flatpaks
    flatpak override --user --env=GTK_THEME="$theme_name"
}

sync_icons() {
    # Get the current icons theme
    icons_theme_name=$(xfconf-query -c xsettings -p /Net/IconThemeName)

    # Cleanup source & target themes directories
    source_icons_dirs=()
    rm -rf "$target_icons_dir"/*

    # Go through each item in $XDG_DATA_DIRS to find all other directories where
    # icons are stored, and save only the current one to source_icons_dirs
    while read -r dir; do
        icons_subdir=${dir%/}/icons/${icons_theme_name}
        [ -d "$icons_subdir" ] && source_icons_dirs+=("$icons_subdir")
    done < <(printf '%s:%s\n' "$XDG_DATA_DIRS" "$HOME/.local/share" | tr ':' '\n' | sort -u)

    rsync -av --delete --progress "${source_icons_dirs[@]}" "$target_icons_dir"
    echo "Directory $target_icons_dir is synchronized with source directories"
}

sync_font() {
    # Get the current system font
    font=$(xfconf-query -c xsettings -p /Gtk/FontName)
    # Apply the same font for the title of xfce windows
    xfconf-query -c xfwm4 -p /general/title_font -n -t string -s "$font"
}

sync_theme
sync_icons
sync_font

# Monitor when the user changes their system theme or font in XFCE and sync them as needed
while read -r line; do
    case "$line" in
        'set: /Net/ThemeName') sync_theme ;;
        'set: /Net/IconThemeName') sync_icons ;;
        'set: /Gtk/FontName') sync_font ;;
    esac
done < <(xfconf-query -c xsettings -m)