#! /usr/bin/env python
# (c) Copyright 2009-2015. CodeWeavers, Inc.

import os

# Portable which(1) implementation
def which(path, app):
    """Looks for an executable in the specified directory list.

    path is an os.pathsep-separated list of directories and app is the
    executable name. If app contains a path separator then path is ignored.
    If the file is not found, then None is returned.
    """
    if os.path.isabs(app):
        if os.path.isfile(app) and os.access(app, os.X_OK):
            return app
    elif os.sep in app or (os.altsep and os.altsep in app):
        app_path = os.path.join(os.getcwd(), app)
        if os.path.isfile(app_path) and os.access(app_path, os.X_OK):
            return app_path
    else:
        for directory in path.split(os.pathsep):
            if directory == "":
                continue
            app_path = os.path.join(directory, app)
            if os.path.isfile(app_path) and os.access(app_path, os.X_OK):
                return app_path
    return None
import sys
def locate_cx_root():
    """Locate where CrossOver is installed.

    We start by locating our own python script file and walking back up the
    path, traversing symbolic links on the way. Then we verify what we have
    found the right directory by checking for the presence of the cxmenu
    script.
    """
    # pylint: disable=I0011,W0601,W0603
    global CX_ROOT
    if "CX_DEVELOP_ROOT" in os.environ:
        CX_ROOT = os.environ["CX_DEVELOP_ROOT"]
        return

    # figure out argv0
    argv0 = which(os.environ["PATH"], sys.argv[0])
    if not argv0:
        argv0 = sys.argv[0]
        if not os.path.isabs(argv0):
            argv0 = os.path.join(os.getcwd(), argv0)

    # traverse the symbolic links
    dir0 = os.path.dirname(argv0)
    while True:
        if dir0.endswith("/lib"):
            bindir = dir0[0:-3] + "bin"
        else:
            bindir = dir0
        landmark = os.path.join(bindir, "cxmenu")
        if os.path.isfile(landmark):
            break
        if not os.path.islink(argv0):
            break
        argv0 = os.readlink(argv0)
        if not os.path.isabs(argv0):
            argv0 = os.path.join(dir0, argv0)
        dir0 = os.path.dirname(argv0)

    # compute CX_ROOT
    CX_ROOT = os.path.dirname(os.path.normpath(bindir))

    # check CX_ROOT
    landmark = os.path.join(CX_ROOT, "bin", "cxmenu")
    if not os.path.isfile(landmark) or not os.access(landmark, os.X_OK):
        sys.stderr.write("%s:error: could not find CrossOver in '%s'\n" % (os.path.dirname(sys.argv[0]), CX_ROOT))
        sys.exit(1)

    sys.path.append(os.path.join(CX_ROOT, "lib", "python"))

locate_cx_root()
import cxutils
cxutils.CX_ROOT = CX_ROOT


# pylint: disable=W0611
import checkpython
import distversion
import time

import cxproduct
import cxlog
import cxopt


def main():
    # Parse the command line before we do anything that assumes $DISPLAY is set
    # so we can handle --help and issue usage errors normally.
    opt_parser = cxopt.Parser(usage="%prog [--help]",
                              description="Checks for CrossOver updates.")
    (_options, args) = opt_parser.parse_args()
    if args:
        opt_parser.error("unexpected argument '%s'" % args[0])

    config = cxproduct.get_config()
    wconfig = config.get_save_config()
    if wconfig is None:
        # We won't be able to save the result so there's no point
        cxlog.err("found no writable configuration file")
        return 1
    wconfig.lock_file()

    try:
        next_hook = int(config['CrossOver'].get('NextUpdateHookDate', "0"))
    except ValueError:
        next_hook = 0
    now = time.time()
    if now < next_hook:
        # It's too early to do another check
        wconfig.save_and_unlock_file()
        return 0

    # Update the time for the next cxupdatecheck run
    wconfig['CrossOver']['NextUpdateHookDate'] = '%d' % int(now + 60*60*24)
    # We can now let other processes modify the configuration file
    wconfig.save_and_unlock_file()

    # Don't ask on the first day or if not necessary
    if distversion.REPORT_USAGE_URL != "" and next_hook != 0 and \
            'ReportWineUsage' not in config['CrossOver']:
        import checkgtk
        if checkgtk.check_gtk(warn_gtk=False, warn_display=False) != checkgtk.OK:
            # Displaying the updatecheck dialog is not essential so just exit
            # if we cannot bring up the GUI.
            return 1

        import cxguitools
        cxguitools.set_default_icon('cxregister')

        # Call the GUI __main__.GUI so it can be accessed from the console
        # pylint: disable=W0601
        global GUI
        import cxusageui
        GUI = cxusageui.UsageDialogController()

        import gtk
        gtk.main()

    return 0

if __name__ == "__main__":
    sys.exit(main())