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# ******************************************************

# * Copyright © 2016-2023 - Jordan Irwin (AntumDeluge) *

# ******************************************************

# * This software is licensed under the MIT license.   *

# * See: LICENSE.txt for details.                      *

# ******************************************************



## Executable commands available from the system.

#

#  @module globals.execute



import errno

import os

import subprocess



from subprocess import PIPE

from subprocess import STDOUT



import libdbr.bin

import ui.app



from dbr.language  import GT

from libdbr        import paths





## Executes a command with elevated privileges.

#

#  @param cmd

#    File to be executed.

#  @param args

#    Arguments to pass to command.

#  @return

#    Program exit code & command output.

#  @todo

#    Move to `libdbr`.

def elevated(cmd, *args, pword, check=False):

  if not pword.strip():

    return 1, GT("Empty password")

  sudo = paths.getExecutable("sudo")

  if not sudo:

    return errno.ENOENT, GT("Super user command (sudo) not available")

  main_window = ui.app.getMainWindow()

  # disable input to main window while processing

  main_window.Enable(False)

  cmd_line = "echo {} | {}".format(pword, " ".join(["sudo -S", cmd] + args))

  # FIXME: should this be done with subprocess module?

  res = os.popen(cmd_line).read()

  main_window.Enable(True)

  return 0, res





__installers = ("gdebi-gtk", "gdebi-kde", "qapt-deb-installer")



## Retrieves a list of recognized .deb installing applications.

#

#  @todo

#    Move to different package.

def getDebInstallerList():

  return __installers





## Retrieves a usable GUI .deb installer application.

#

#  @return

#    Path to installer executable or `None` if not available.

#  @todo

#    Move to different package.

def getDebInstaller():

  for inst in __installers:

    cmd = paths.getExecutable(inst)

    if cmd:

      return cmd

  return None