#!/bin/env python

import os, subprocess, sys
import shlex
import xml.dom.minidom as dom

def get_waybox_pid(name='waybox'):
    lines = subprocess.Popen(['pgrep', '-x', name], stdout=subprocess.PIPE).stdout.read().splitlines()
    if lines:
        return int(lines[0])
    else:
        return 0

def get_menu_items(menu, indent, expand):
    menu_id = menu.getAttribute('id')
    nonselectable = str(bool(menu_id == '')).lower()
    print("%s%s ⇢\0info\x1f{\"menu\": \"%s\"}\x1fnonselectable\x1f%s" % (indent, menu.getAttribute('label').replace('_', '') or menu_id, menu_id, nonselectable))
    indent = indent + " "
    children = menu.childNodes
    for i in range(0, children.length):
        if expand:
            if children[i].nodeType == dom.Node.ELEMENT_NODE and children[i].tagName == 'item':
                action = children[i].getElementsByTagName('action')[0].getAttribute('name')
                cmd = ""
                icon = children[i].getAttribute('icon')
                label = children[i].getAttribute('label').replace('_', '')
                if action == 'Execute':
                    cmd = children[i].getElementsByTagName('execute')[0].firstChild.nodeValue
                elif action == 'Exit':
                    cmd = "kill -s SIGTERM %d" % get_waybox_pid()
                elif action == 'Reconfigure':
                    cmd = "kill -s SIGUSR2 %d" % get_waybox_pid()
                print("%s\0info\x1f{\"exec\": \"%s\"}\x1ficon\x1f%s\x1fdisplay\x1f%s %s" % (cmd, cmd.replace('"', '\\"'), icon, indent, label))
            elif children[i].nodeType == dom.Node.ELEMENT_NODE and children[i].tagName == 'menu':
                if children[i].getAttribute('execute') == "":
                    get_menu_items(children[i], indent, os.getenv('ROFI_RETV') is None)
                else:
                    try:
                        import xml.parsers.expat
                        lines = subprocess.Popen(shlex.split(children[i].getAttribute('execute')), stdout=subprocess.PIPE).stdout.read()
                        pipe = dom.parseString(lines)
                        pipes = pipe.getElementsByTagName('menu')
                        for j in range(0, pipes.length):
                            get_menu_items(pipes[j], indent, True)
                    # If a script doesn't function correctly anymore, don't stop rendering the menu
                    except xml.parsers.expat.ExpatError:
                        pass

menu_xml = os.getenv("WB_MENU_XML") or "menu.xml"
document = dom.parse(menu_xml)

print("\0message\x1f%s" % os.path.abspath(menu_xml))
if not (info := os.getenv('ROFI_INFO')) is None:
    import json
    obj = json.JSONDecoder().decode(s=info)
    if 'exec' in info:
        subprocess.Popen(shlex.split(obj['exec']), stdout=subprocess.PIPE)
        sys.exit(0)
    elif 'menu' in obj:
        # Eh document.getElementById() seems not to work
        menus = document.getElementsByTagName('menu')
        for i in range(0, menus.length):
            if menus[i].getAttribute('id') == obj['menu']:
                menu = menus[i]
                if not menu is None:
                    get_menu_items(menu, "", True)
                    print("---\0nonselectable\x1ftrue")
                break

root_menu = document.getElementsByTagName('menu')[0]
get_menu_items(root_menu, "", True)