#!/usr/bin/env python3
# org.freedesktop.FileManager1 for lf: browsers' "Show in Folder", Electron apps, portals... call
# ShowItems/ShowFolders over D-Bus. Each opens lf in foot (a file = its folder with the file selected).
# D-Bus activated via ~/.local/share/dbus-1/services/org.freedesktop.FileManager1.service.
import os
import subprocess
from urllib.parse import unquote, urlparse

from gi.repository import Gio, GLib

XML = """
<node>
  <interface name="org.freedesktop.FileManager1">
    <method name="ShowFolders"><arg type="as" name="URIs" direction="in"/><arg type="s" name="StartupId" direction="in"/></method>
    <method name="ShowItems"><arg type="as" name="URIs" direction="in"/><arg type="s" name="StartupId" direction="in"/></method>
    <method name="ShowItemProperties"><arg type="as" name="URIs" direction="in"/><arg type="s" name="StartupId" direction="in"/></method>
  </interface>
</node>
"""


def path_of(uri):
    if uri.startswith("file://"):
        return unquote(urlparse(uri).path)
    return uri if uri.startswith("/") else None


def lf(path):
    subprocess.Popen(["foot", "-e", "lf", path], start_new_session=True,
                     stdin=subprocess.DEVNULL, stdout=subprocess.DEVNULL, stderr=subprocess.DEVNULL)


def call(conn, sender, obj, iface, method, params, inv):
    uris, _startup = params.unpack()
    # one window per folder: ShowItems of several files in the same folder opens it once
    seen = set()
    for uri in uris:
        p = path_of(uri)
        if not p or not os.path.exists(p):
            continue
        key = p if method == "ShowFolders" else os.path.dirname(p)
        if key in seen:
            continue
        seen.add(key)
        lf(p)
    inv.return_value(None)


def acquired(conn, name):
    node = Gio.DBusNodeInfo.new_for_xml(XML)
    conn.register_object("/org/freedesktop/FileManager1", node.interfaces[0], call, None, None)


loop = GLib.MainLoop()
Gio.bus_own_name(Gio.BusType.SESSION, "org.freedesktop.FileManager1", Gio.BusNameOwnerFlags.NONE,
                 acquired, None, lambda *a: loop.quit())
loop.run()