#!/usr/bin/env python
#/******************************************************************************
# * Icinga 2                                                                   *
# * Copyright (C) 2012-2015 Icinga Development Team (http://www.icinga.org)    *
# *                                                                            *
# * 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; either version 2             *
# * of the License, or (at your option) any later version.                     *
# *                                                                            *
# * 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.                               *
# *                                                                            *
# * You should have received a copy of the GNU General Public License          *
# * along with this program; if not, write to the Free Software Foundation     *
# * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301, USA.             *
# ******************************************************************************/

import urllib2, json, sys, string

if len(sys.argv) < 2:
    print "Usage:", sys.argv[0], "<VERSION>", "[link-issues]"
    sys.exit(0)

version_name = sys.argv[1]

link_issues = (len(sys.argv) >= 3 and sys.argv[2] == "link-issues")
issue_url = "https://dev.icinga.org/issues/"
issue_project = "i2"

rsp = urllib2.urlopen("https://dev.icinga.org/projects/%s/versions.json" % (issue_project))
versions_data = json.loads(rsp.read())

version_id = None

for version in versions_data["versions"]:
    if version["name"] == version_name:
        version_id = version["id"]
        break

if version_id == None:
    print "Version '%s' not found." % (version_name)
    sys.exit(1)

changes = ""

if "custom_fields" in version:
    for field in version["custom_fields"]:
        if field["id"] == 14:
            changes = field["value"]
            break

    changes = string.join(string.split(changes, "\r\n"), "\n")

print "### What's New in Version %s" % (version_name)
print ""

if changes:
    print "#### Changes"
    print ""
    print changes
    print ""

offset = 0

log_entries = []

while True:
    # We could filter using &cf_13=1, however this doesn't currently work because the custom field isn't set
    # for some of the older tickets:
    rsp = urllib2.urlopen("https://dev.icinga.org/projects/%s/issues.json?offset=%d&status_id=closed&fixed_version_id=%d" % (issue_project, offset, version_id))
    issues_data = json.loads(rsp.read())
    issues_count = len(issues_data["issues"])
    offset = offset + issues_count

    if issues_count == 0:
        break

    for issue in issues_data["issues"]:
        ignore_issue = False

        if "custom_fields" in issue:
            for field in issue["custom_fields"]:
                if field["id"] == 13 and "value" in field and field["value"] == "0":
                    ignore_issue = True
                    break

            if ignore_issue:
                continue

        log_entries.append((issue["tracker"]["name"], issue["id"], issue["subject"].strip()))

for p in range(2):
    not_empty = False

    for log_entry in log_entries:
        if (p == 0 and log_entry[0] == "Feature") or (p == 1 and log_entry[0] != "Feature"):
            not_empty = True

    if not_empty:
        print "####", "Features" if p == 0 else "Bugfixes"
        print ""

    for log_entry in sorted(log_entries):
        if (p == 0 and log_entry[0] == "Feature") or (p == 1 and log_entry[0] != "Feature"):
            if not link_issues:  
                print "* %s %d: %s" % log_entry
            else:
                print "* {0} [{1}]({3}{1} \"{0} {1}\"): {2}".format(log_entry[0], log_entry[1], log_entry[2], issue_url)

    if not_empty:
        print ""

sys.exit(0)