#! /usr/bin/env python
# Copyright (c) 2002 ekit.com Inc (http://www.ekit-inc.com/)
#
# Permission is hereby granted, free of charge, to any person obtaining a copy
# of this software and associated documentation files (the "Software"), to deal
# in the Software without restriction, including without limitation the rights
# to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
# copies of the Software, and to permit persons to whom the Software is
# furnished to do so, subject to the following conditions:
#
#   The above copyright notice and this permission notice shall be included in
#   all copies or substantial portions of the Software.
#
# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
# AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
# LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
# OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
# SOFTWARE.

'''
Simple script that emails all users of a tracker with the issues that
are currently assigned to them.

TODO: introduce some structure ;)
TODO: possibly make this more general and configurable...
'''

import sys, cStringIO, MimeWriter, smtplib
from roundup import instance, date
from roundup.mailer import SMTPConnection

# open the instance
if len(sys.argv) != 2:
    print 'You need to specify an instance home dir'
instance_home = sys.argv[1]
instance = instance.open(instance_home)
db = instance.open('admin')

resolved_id = db.status.lookup('resolved')

def listCompare(x, y):
    "compare two tuples such that order is positive on [0] and negative on [1]"
    if x[0] < y[0]:
        return -1
    if x[0] > y[0]:
        return 1
    if x[1] > y[1]:
        return -1
    if x[1] < y[1]:
        return 1
    return 0

# loop through all the users
for user_id in db.user.list():
    # make sure we care aboue this user
    name = db.user.get(user_id, 'realname')
    if name is None:
        name = db.user.get(user_id, 'username')
    address = db.user.get(user_id, 'address')
    if address is None:
        continue

    # extract this user's issues
    l = []
    for issue_id in db.issue.find(assignedto=user_id):
        if db.issue.get(issue_id, 'status') == resolved_id:
            continue
        order = db.priority.get(db.issue.get(issue_id, 'priority'), 'order')
        l.append((order, db.issue.get(issue_id, 'activity'),
            db.issue.get(issue_id, 'creation'), issue_id))

    # sort the issues by timeliness and creation date
    l.sort(listCompare)
    if not l:
        continue

    # generate the email message
    message = cStringIO.StringIO()
    writer = MimeWriter.MimeWriter(message)
    writer.addheader('Subject', 'Your active %s issues'%db.config.TRACKER_NAME)
    writer.addheader('To', address)
    writer.addheader('From', '%s <%s>'%(db.config.TRACKER_NAME,
        db.config.ADMIN_EMAIL))
    writer.addheader('Reply-To', '%s <%s>'%(db.config.TRACKER_NAME,
        db.config.ADMIN_EMAIL))
    writer.addheader('MIME-Version', '1.0')
    writer.addheader('X-Roundup-Name', db.config.TRACKER_NAME)

    # start the multipart
    part = writer.startmultipartbody('alternative')
    part = writer.nextpart()
    body = part.startbody('text/plain')
    
    # do the plain text bit
    print >>body, 'Created     ID   Activity  Title'
    print >>body, '='*75
    #             '2 months    213  immediate cc_daemon barfage
    old_priority = None
    for priority_order, activity_date, creation_date, issue_id in l:
        priority = db.issue.get(issue_id, 'priority')
        if (priority != old_priority):
            old_priority = priority
            print >>body, '    ', db.priority.get(priority,'name')
        # pretty creation
        creation = (creation_date - date.Date('.')).pretty()
        activity = (activity_date - date.Date('.')).pretty()
        title = db.issue.get(issue_id, 'title')
        if len(title) > 42:
            title = title[:38] + ' ...'
        print >>body, '%-11s %-4s %-9s %-42s'%(creation, issue_id,
            activity, title)

    # some help to finish off
    print >>body, '''
To view or respond to any of the issues listed above, visit the URL

   %s

and click on "My Issues". Do NOT respond to this message.
'''%db.config.TRACKER_WEB


    # now the HTML one
    part = writer.nextpart()
    body = part.startbody('text/html')
    colours = {
        'immediate': ' bgcolor="#ffcdcd"',
        'day': ' bgcolor="#ffdecd"',
        'week': ' bgcolor="#ffeecd"',
        'month': ' bgcolor="#ffffcd"',
        'whenever': ' bgcolor="#ffffff"',
    }
    print >>body, '''<table border>
<tr><th>Created</th> <th>ID</th> <th>Activity</th> <th>Title</th></tr>
'''
    old_priority = None
    for priority_order, activity_date, creation_date, issue_id in l:
        priority = db.issue.get(issue_id,'priority')
        if (priority != old_priority):
           old_priority = priority
           print >>body, '<tr><td>-></td><td>-></td><td>-></td><td><b>%s</b></td></tr>'%db.priority.get(priority,'name')
        creation = (creation_date - date.Date('.')).pretty()
        title = db.issue.get(issue_id, 'title')
        issue_id = '<a href="%sissue%s">%s</a>'%(db.config.TRACKER_WEB,
            issue_id, issue_id)
        activity = (activity_date - date.Date('.')).pretty()
        print >>body, '''<tr><td>%s</td><td>%s</td><td>%s</td>
    <td>%s</td></tr>'''%(creation, issue_id, activity, title)
    print >>body, '</table>'

    print >>body, '''<p>To view or respond to any of the issues listed
        above, simply click on the issue ID. Do <b>not</b> respond to
        this message.</p>'''

    # finish of the multipart
    writer.lastpart()

    # all done, send!
    smtp = SMTPConnection(db.config)
    smtp.sendmail(db.config.ADMIN_EMAIL, address, message.getvalue())

# vim: set filetype=python ts=4 sw=4 et si