#!/usr/bin/env python

import logging
import urllib2

from cmdline import CommandLineApp
from hashlib import sha1
from datetime import datetime
from xml.dom.minidom import parseString

def getText(nodelist):
    rc = ""
    for node in nodelist:
        if node.nodeType == node.TEXT_NODE:
            rc = rc + node.data
    return rc

class Tickets2Org(CommandLineApp):
    def __init__(self):
        CommandLineApp.__init__(self)

        self.project    = None
        self.number     = None
        self.username   = None
        self.password   = None

        self.versions   = {}
        self.milestones = {}
        self.people     = {}
        self.tickets    = {}

        #op = self.option_parser
        #op.add_option('-P', '--port', metavar='PORT',
        #              type='string', action='store', dest='port',
        #              default=80, help='HTTP port to connect to (default: 80)')

        self.log.setLevel(logging.INFO)

    def download(self, which):
        url = 'http://%s.unfuddle.com/api/v1/projects/%s/%s' % \
            (self.project, self.number, which)

        auth_handler = urllib2.HTTPBasicAuthHandler()
        auth_handler.add_password(realm='Unfuddle API',
                                  uri=url,
                                  user=self.username,
                                  passwd=self.password)
        opener = urllib2.build_opener(auth_handler)
        # ...and install it globally so it can be used with urlopen.
        urllib2.install_opener(opener)

        req = urllib2.Request(url)
        req.add_header('Accept', 'application/xml')
        f = urllib2.urlopen(req)

        items = {}

        topNode = parseString(f.read()).childNodes[0]
        for childNode in topNode.childNodes:
            if childNode.nodeType == childNode.TEXT_NODE:
                continue

            item = {}
            
            for propertyNode in childNode.childNodes:
                if propertyNode.nodeType == propertyNode.TEXT_NODE:
                    continue

                item[propertyNode.nodeName] = getText(propertyNode.childNodes)

            items[item['id']] = item

        return items

    def main(self, project, number, username, password):
        self.project    = project
        self.number     = number
        self.username   = username
        self.password   = password

        self.versions   = self.download('versions')
        self.milestones = self.download('milestones')
        self.people     = self.download('people')
        self.tickets    = self.download('tickets')

        for ticket in self.tickets.values():
            self.ticket_to_org(ticket)

    def ticket_to_org(self, ticket):
        # jww (2009-03-01): Download attachments as :DATA:/:END:
        print "** TODO",

        if ticket['priority'] == '1' or ticket['priority'] == '2':
            print "[#A]",
        if ticket['priority'] == '3':
            print "[#B]",
        if ticket['priority'] == '4' or ticket['priority'] == '5':
            print "[#C]",

        print ticket['summary']

        if ticket['due-on']:
            deadline = datetime.strptime(ticket['created-at'],
                                                  '%Y-%m-%dT%H:%M:%S-04:00')
            print "  DEADLINE: <%s -2w>" % \
                deadline.strftime('[%Y-%m-%d %a %H:%M]')

        print ticket['description']

        print "   :PROPERTIES:"

        reporter = "%s %s <%s>" % \
            (self.people[ticket['reporter-id']]['first-name'],
             self.people[ticket['reporter-id']]['last-name'],
             self.people[ticket['reporter-id']]['email'])
        print "   :Submitter:", reporter

        if ticket['version-id']:
            print "   :Version:", \
                self.versions[ticket['version-id']]['name']

        if ticket['milestone-id']:
            print "   :Milestone:", \
                self.milestones[ticket['milestone-id']]['title']

        print "   :Ticket:", ticket['id']

        #if ticket['hours-estimate-current']:
        #    print "   :Effort:", ticket['hours-estimate-initial']

        created = datetime.strptime(ticket['created-at'],
                                    '%Y-%m-%dT%H:%M:%S-04:00')
        timestamp = created.strftime('[%Y-%m-%d %a %H:%M]')

        m = sha1()
        m.update(reporter)
        m.update(ticket['id'])
        m.update(timestamp)

        h = m.hexdigest().upper()
        print "   :ID: %s-%s-%s-%s-%s" % \
            (h[0:8], h[8:12], h[12:16], h[16:20], h[20:32])

        print "   :END:"

        created = datetime.strptime(ticket['created-at'],
                                    '%Y-%m-%dT%H:%M:%S-04:00')
        print "  ", timestamp

if __name__ == "__main__":
    Tickets2Org().run()