#!/usr/bin/env python
import sys, os, tempfile

def do(cmd):
	if os.system(cmd):
		raise Exception('Execution of "%s" failed; aborting.' % cmd)

print "!!! WARNING WARNING WARNING !!!"
print "I'm about to download and execute an unsigned script "
print "from the Klik server (in the same way that running a "
print "program normally using klik does). This is totally insecure!"
print "Don't run this with permission to do anything nasty!"
print

if len(sys.argv) != 2:
	raise Exception('Usage: klik2zero <appname>')
app = sys.argv[1]

tmp = tempfile.mkdtemp(prefix = 'klik-')
print "Using temporary directory '%s'" % tmp
os.chdir(tmp)

os.system('wget --user-agent="klik/0.1.3cli (Linux nono 2.6.16.2talex #1 SMP PREEMPT Sun Apr 9 13:17:37 BST 2006 i686 GNU/Linux @@)" -O script http://134.169.172.48/apt/?package=' + app)
realhome = os.environ['HOME']
os.environ['HOME'] = tmp
os.mkdir('Apps')
config = file(tmp + '/.klikrc', 'w')
config.write('SOURCES=CPX-MINI\n')
config.close()
do('sh ./script')
os.environ['HOME'] = realhome
appdirname = os.listdir('Apps')[0]
print
print "Created application directory %s" % appdirname
os.system("convert Apps/*/.DirIcon %s.png" % app)
do("cd Apps && tar cjf ../%s.tar.bz2 *" % app)
print "Time to create an interface for it. Set the summary, but don't "
print "worry too much about the other fields. You'll have to change something, "
print "though, or it will abort!"
print

do("0launch http://0install.net/2006/interfaces/0publish %s.xml" % app)
do(("0launch http://0install.net/2006/interfaces/0publish "
	  "--set-main=wrapper "
	  "--archive-extract=%s "
	  "--archive-url=http://myserver/%s.tar.bz2 "
	  "--archive-file=%s.tar.bz2 %s.xml") % (appdirname, app, app, app))

print
print "OK, everything is in %s:\n" % tmp
print "The interface is %s.xml" % app
print "The archive is %s.tar.bz2" % app
print "The icon is %s.png" % app
print
print "$ cd %s" % tmp
print "- Upload the icon and archive somewhere."
print "- Edit %s.xml to give correct locations for them." % app
print "- Test with:"
print "$ 0launch ./%s.xml" % app
print "- Set uri in interface, sign it, and upload it somewhere."