from installclass import getBaseInstallClass
from rhpl.translate import N_, _
from constants import *
import os
import iutil
import rhpl

baseclass = getBaseInstallClass()

import logging
log = logging.getLogger("anaconda")

import string

class Script:
    def __repr__(self):
	str = ("(s: '%s' i: %s c: %d)") %  \
	    (self.script, self.interp, self.inChroot)
	return string.replace(str, "\n", "|")

    def __init__(self, script, interp, inChroot, logfile = None):
	self.script = script
	self.interp = interp
	self.inChroot = inChroot
        self.logfile = logfile

    def run(self, chroot, serial):
        import tempfile
        import os.path

        if self.inChroot:
            scriptRoot = chroot
        else:
            scriptRoot = "/"

        (fd, path) = tempfile.mkstemp("", "sme-script-", scriptRoot + "/tmp")

        os.write(fd, self.script)
        os.close(fd)
        os.chmod(path, 0700)

        if self.logfile is not None:
            messages = self.logfile
        elif serial:
            messages = "%s.log" % path
        else:
            messages = "/dev/tty3"

        rc = iutil.execWithRedirect(self.interp, ["/tmp/%s" % os.path.basename(path)],
                                    stdin = messages, stdout = messages, stderr = messages,
                                    root = scriptRoot)

	if rc != 0:
	    log.error("WARNING - Error code %s encountered running a sme script", rc)

	os.unlink(path)
        if serial or self.logfile is not None:
            os.chmod("%s" % messages, 0600)

class InstallClass(baseclass):
    name = N_("Upgrade Existing System")
    pixmap = "upgrade.png"
    sortPriority = 999999

    parentClass = ( _("Upgrade"), "upgrade.png" )

    def requiredDisplayMode(self):
        return 't'

    def setSteps(self, dispatch):
	dispatch.setStepList(
		    "language",
		    "keyboard",
                    "findrootparts",
		    "findinstall",
		    "installtype",
                    "partitionobjinit",
                    "upgrademount",
                    "upgrademigfind",
                    "upgrademigratefs",
                    "upgradecontinue",
                    "reposetup",
                    "upgbootloader",
                    "checkdeps",
		    "dependencies",
                    "postselection",
		    "install",
                    "migratefilesystems",
                    "preinstallconfig",
                    "installpackages",
                    "postinstallconfig",
                    "instbootloader",
                    "dopostaction",
                    "methodcomplete",
                    "copylogs",
		    "complete"
		)

        if iutil.getPPCMachine() == "iSeries":
            dispatch.skipStep("bootloadersetup", skip = 0)

        if rhpl.getArch() != "i386" and rhpl.getArch() != "x86_64":
            dispatch.skipStep("bootloader")
            dispatch.skipStep("bootloaderadvanced")

        if rhpl.getArch() != "i386" and rhpl.getArch() != "x86_64":
            dispatch.skipStep("upgbootloader")            

    def postAction(self, anaconda, serial):
        win = anaconda.intf.waitWindow(_("Post Upgrade Script"),
           _("The post upgrade script is running..."))

        script = ( "#!/bin/sh\nmkdir /var/lib/dhcp; /sbin/syslogd ; sleep 2; /sbin/e-smith/signal-event post-upgrade\n" )
        s = Script(script, interp="/bin/sh", inChroot=1)
        log.info("%s", s)
        s.run(anaconda.rootPath, serial)
        win.pop()

    def setInstallData(self, anaconda):
        baseclass.setInstallData(self, anaconda)
        anaconda.id.setUpgrade(True)
    
    def __init__(self, expert):
	baseclass.__init__(self, expert)