#! /usr/bin/env python

try:
    from urllib.parse import parse_qsl, urlencode, \
        quote, unquote, unquote_plus, \
        splittype, splithost, splituser, splitpasswd, \
        splitport, splittag, splitquery
except ImportError:
    from cgi import parse_qsl
    from urllib import urlencode, quote, unquote, unquote_plus, \
        splittype, splithost, splituser, splitpasswd, \
        splitport, splittag, splitquery
from getopt import getopt, GetoptError
import sys
from m_lib.defenc import default_encoding

# This must be imported and called before webbrowser
# because webbrowser reads BROWSER environment variable at the import time
from browser_stack import set_current_browser
set_current_browser()

import webbrowser

def usage():
    sys.exit('Usage: %s [-e|--encoding=encoding] [-n|--newwin|-t|--tab] URL' % sys.argv[0])

try:
    options, arguments = getopt(sys.argv[1:], 'e:nt', ['encoding=', 'newwin', 'tab'])
except GetoptError:
    usage()

if len(arguments) != 1:
    usage()

encoding = None
new = 0

for option, value in options:
    if option in ('-e', '--encoding'):
        encoding = value
    elif option in ('-n', '--newwin'):
        new = 1
    elif option in ('-t', '--tab'):
        new = 2

if not encoding:
    encoding = default_encoding

url = arguments[0]
protocol, request = splittype(url)
user, password, port = None, None, None
host, path = splithost(request)
if host:
   user, host = splituser(host)
   if user:
      user, password = splitpasswd(user)
   host, port = splitport(host)
   if port: port = int(port)
path, tag = splittag(path)
path, query = splitquery(path)
path = unquote(path)
if tag: tag = unquote_plus(tag)

if query:
   qlist = []
   for name, value in parse_qsl(query):
      name = unicode(name, default_encoding).encode(encoding)
      value = unicode(value, default_encoding).encode(encoding)
      qlist.append((name, value))

url = protocol + "://"
if user:
   url += quote(unicode(user, default_encoding).encode(encoding))
   if password:
      url += ':' + quote(unicode(password, default_encoding).encode(encoding))
   url += '@'
if host:
   url += host.decode(encoding).encode('idna')
   if port:
      url += ':%d' % port
if path:
   if protocol == "file":
      url += quote(path)
   else:
      url += quote(unicode(path, default_encoding).encode(encoding))
if query:
   url += '?' + urlencode(qlist)
if tag:
   url += '#' + quote_plus(unicode(tag, default_encoding).encode(encoding))

webbrowser.open(url, new)