#!/usr/bin/python
# -*- coding: utf-8 -*-
#
# (C) 2007 Canonical Ltd., Steve Kowalik
# Authors:
#  Martin Pitt <martin.pitt@ubuntu.com>
#  Steve Kowalik <stevenk@ubuntu.com>
#  Michael Bienia <geser@ubuntu.com>
#  Daniel Hahler <ubuntu@thequod.de>
#  Iain Lane <laney@ubuntu.com>
#  Jonathan Davies <jpds@ubuntu.com>
#  Markus Korn <thekorn@gmx.de> (python-launchpadlib support)
#
# ##################################################################
#
# This program is free software; you can redistribute it and/or
# modify it under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 2.
# 
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
# GNU General Public License for more details.
#
# See file /usr/share/common-licenses/GPL-2 for more details.
#
# ##################################################################

import sys
from optparse import OptionParser
from debian_bundle.changelog import Version

# ubuntu-dev-tools modules
from ubuntutools.lp import udtexceptions
from ubuntutools.requestsync.common import *
# https_proxy fix
import ubuntutools.common

#
# entry point
#

if __name__ == '__main__':
	# Our usage options.
	usage = 'Usage: %prog [-d distro] [-k keyid] [-n] [--lp] [-s] [-e] ' \
		'<source package> [<target release> [base version]]'
	optParser = OptionParser(usage)

	optParser.add_option('-d', type = 'string',
		dest = 'dist', default = 'unstable',
		help = 'Debian distribution to sync from.')
	optParser.add_option('-k', type = 'string',
		dest = 'keyid', default = None,
		help = 'GnuPG key ID to use for signing report (only used when emailing the sync request).')
	optParser.add_option('-n', action = 'store_true',
		dest = 'newpkg', default = False,
		help = 'Whether package to sync is a new package in Ubuntu.')
	optParser.add_option('--lp', action = 'store_true',
		dest = 'lpapi', default = False,
		help = 'Specify whether to use the LP API for filing the sync request.')
	optParser.add_option('-s', action = 'store_true',
		dest = 'sponsor', default = False,
		help = 'Force sponsorship')
	optParser.add_option('-e', action = 'store_true',
		dest = 'ffe', default = False,
		help = 'Use this after FeatureFreeze for non-bug fix syncs, changes ' \
			'default subscription to the appropriate release team.')

	(options, args) = optParser.parse_args()

	if not len(args):
		optParser.print_help()
		sys.exit(1)

	# import the needed requestsync module
	if options.lpapi:
		from ubuntutools.requestsync.lp import *
		from ubuntutools.lp.lpapicache import Distribution
	else:
		from ubuntutools.requestsync.mail import *
		if not getEmailAddress():
			sys.exit(1)

	newsource = options.newpkg
	sponsorship = options.sponsor
	keyid = options.keyid
	lpapi = options.lpapi
	need_interaction = False
	distro = options.dist
	ffe = options.ffe

	if len(args) not in (2, 3): # no release specified, assume development release
		if options.lpapi:
			release = Distribution('ubuntu').getDevelopmentSeries().name
			print >> sys.stderr, 'W: Target release missing - assuming %s' % release
		else:
			print >> sys.stderr, 'E: Source package or target release missing. Exiting.'
			sys.exit(1)
	else:
		release = args[1]

	srcpkg = args[0]
	force_base_ver = None
	
	# Base version specified.
	if len(args) == 3: force_base_ver = args[2]

	(cur_ver, component) = ('0', 'universe') # Let's assume universe

	# Find Ubuntu release's package version.
	try:
		ubuntusrcpkg = getUbuntuSrcPkg(srcpkg, release)
		cur_ver = ubuntusrcpkg.getVersion()
		component = ubuntusrcpkg.getComponent()
	except udtexceptions.PackageNotFoundException:
		if not newsource:
			print "'%s' doesn't exist in 'Ubuntu %s'.\nDo you want to sync a new package?" % \
				(srcpkg, release)
			raw_input_exit_on_ctrlc('Press [Enter] to continue or [Ctrl-C] to abort. ')
			newsource = True # TODO: set it for now, but check code if it's needed

	debsrcpkg = getDebianSrcPkg(srcpkg, distro)
	debiancomponent = debsrcpkg.getComponent()
	# Find Debian release's package version.
	deb_version = debsrcpkg.getVersion()

	# Debian and Ubuntu versions are the same - stop.
	if deb_version == cur_ver:
		print 'The versions in Debian and Ubuntu are the same already (%s). Aborting.' % (deb_version,)
		sys.exit(1)

	# -s flag not specified - check if we do need sponsorship.
	if (not sponsorship):
		if (not newsource):
			sponsorship = needsSponsorship(srcpkg, component)
		else:
			sponsorship = not PersonTeam.getMe().isLpTeamMember('motu') # assume going to universe

	# Check for existing package reports.
	if (not newsource) and use_lp_bugs: checkExistingReports(srcpkg)

	# Generate bug report.
	subscribe = 'ubuntu-archive'
	status = 'confirmed'
	if sponsorship == True:
		status = 'new'
	if component in ['main', 'restricted']:
		subscribe = 'ubuntu-main-sponsors'
	else:
		subscribe = 'ubuntu-universe-sponsors'
	if ffe == True:
		status = 'new'
		if component in ['main', 'restricted']:
			subscribe = 'ubuntu-release'
		else:
			subscribe = 'motu-release'

	pkg_to_sync = '%s %s (%s) from Debian %s (%s)' % (srcpkg, deb_version, component, distro, debiancomponent)
	title = "Sync %s" % pkg_to_sync
	if ffe == True:
		title = "FFe: " + title
	report = "Please sync %s\n\n" % pkg_to_sync

	base_ver = cur_ver
	uidx = base_ver.find('ubuntu')
	if uidx > 0:
		base_ver = base_ver[:uidx]
		need_interaction = True

	print 'Changes have been made to the package in Ubuntu.'
	print 'Please edit the report and give an explanation.'
	print 'Press ENTER to start your editor. Press Control-C to abort now.'
	print 'Not saving the report file will abort the request, too.'
	raw_input_exit_on_ctrlc()
	report += 'Explanation of the Ubuntu delta and why it can be dropped:\n' + \
		'>>> ENTER_EXPLANATION_HERE <<<\n\n'

	if ffe == True:
		need_interaction = True

	print 'To approve FeatureFreeze exception, you need to state '
	print 'the reason why you feel it is necessary.'
	print 'Press ENTER to start your editor. Press Control-C to abort now.'
	print 'Not saving the report file will abort the request, too.'
	raw_input_exit_on_ctrlc()
	report += 'Explanation of FeatureFreeze exception:\n' + \
		'>>> ENTER_EXPLANATION_HERE <<<\n\n'

	# Check if they have a per-package upload permission.
	if LpApiWrapper.isPerPackageUploader(srcpkg):
		report += 'Note that I have per-package upload permissions for %s.\n\n' % srcpkg

	uidx = base_ver.find('build')
	if uidx > 0:
		base_ver = base_ver[:uidx]

	if force_base_ver:
		base_ver = force_base_ver

	if not newsource: report += 'Changelog since current %s version %s:\n\n' % (release, cur_ver)
	changelog = getDebianChangelog(debsrcpkg, Version(base_ver))
	if not changelog:
		sys.exit(1)
	report += changelog + '\n'

	(title, report) = edit_report(title, report, changes_required = need_interaction)

	# Post sync request using Launchpad interface:
	srcpkg = not newsource and srcpkg or None
	if options.lpapi:
		# Map status to the values expected by lp-bugs
		mapping = {'new': 'New', 'confirmed': 'Confirmed'}
		postBug(srcpkg, subscribe, mapping[status], title, report)
	else:
		# Mail sync request:
		mailBug(srcpkg, subscribe, status, title, report, keyid)