#! /usr/bin/python2
# -*- coding=utf-8 -*-

FALLBACK_COMMAND = "metacity"
FALLBACK_ARGS = ("--replace",)

import os, sys, gettext
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk

gettext.install("cinnamon", "/usr/share/locale")

def confirm_restart():
    d = Gtk.MessageDialog(parent=None, flags=0, message_type=Gtk.MessageType.WARNING, buttons=Gtk.ButtonsType.YES_NO)
    d.set_keep_above(True)
    d.set_markup("<span size='large'><b>%s</b></span>\n\n%s" % (_("Cinnamon just crashed. You are currently running in Fallback Mode."), _("Do you want to restart Cinnamon?")))
    d.show_all()
    resp = d.run()
    d.destroy()
    return (resp == Gtk.ResponseType.YES)

if __name__ == "__main__":
    cinnamon_pid = os.fork()
    if cinnamon_pid == 0:
        os.execvp("cinnamon", ("cinnamon", "--replace", ) + tuple(sys.argv[1:]))
    else:
        exit_status = os.waitpid(cinnamon_pid, 0)[1]
        if exit_status != 0:
            if os.fork() == 0:
                if os.path.exists("/usr/bin/gnome-panel"):
                    os.system("gnome-panel --replace &")
                elif os.path.exists("/usr/bin/tint2"):
                    os.system("killall tint2")
                    os.system("tint2 &")
                os.execvp(FALLBACK_COMMAND, (FALLBACK_COMMAND,) + FALLBACK_ARGS)
            else:
                if confirm_restart():
                    os.execvp(sys.argv[0], (sys.argv[0], "--replace"))
