#!/bin/sh

# Show regular .desktop applications plus executable files in ~/bin.
# .desktop entries are launched with gtk-launch.
# ~/bin entries are executed directly, so their shebang is respected.

APP_DIRS="/usr/share/applications $HOME/.local/share/applications"
BIN_DIR="$HOME/bin"

entries=$(
    for dir in $APP_DIRS; do
        [ -d "$dir" ] || continue

        find "$dir" -type f -name '*.desktop' 2>/dev/null | while IFS= read -r file; do
            name=$(awk -F= '/^Name=/ { print $2; exit }' "$file")
            type=$(awk -F= '/^Type=/ { print $2; exit }' "$file")
            nodisplay=$(awk -F= '/^NoDisplay=/ { print $2; exit }' "$file")
            hidden=$(awk -F= '/^Hidden=/ { print $2; exit }' "$file")

            [ -n "$name" ] || continue
            [ -z "$type" ] || [ "$type" = "Application" ] || continue
            [ "$nodisplay" = "true" ] && continue
            [ "$hidden" = "true" ] && continue

            id=$(basename "$file" .desktop)
            printf '%s [desktop]\tdesktop\t%s\n' "$name" "$id"
        done
    done

    if [ -d "$BIN_DIR" ]; then
        find "$BIN_DIR" -maxdepth 1 -type f -perm /111 2>/dev/null | while IFS= read -r file; do
            name=$(basename "$file")
            printf '%s [bin]\tbin\t%s\n' "$name" "$file"
        done
    fi
)

choice=$(printf '%s\n' "$entries" | sort -f | wmenu -l 20)
[ -n "$choice" ] || exit 0

kind=$(printf '%s' "$choice" | cut -f2)
target=$(printf '%s' "$choice" | cut -f3-)

case "$kind" in
    desktop)
        gtk-launch "$target" >/dev/null 2>&1 &
        ;;
    bin)
        "$target" >/dev/null 2>&1 &
        ;;
esac