#! /usr/bin/env python

# This script generates a simple report outlining the activity in one
# tracker for the most recent week.

# A second argument is the negative interval to change period
# of time.

# This script is free software, you may redistribute it
# and/or modify under the same terms as Python.

#Example output
#CREATED:
#2702: new item
#
#RESOLVED:
#1995: Where is my Power plugs
#2501: Can you help me with Sanity
#459: I need Sanity
#
#TOP TEN MOST DISCUSSED:
#2 - 491: Can you help me with Sanity
#1 - 1995: Where is my Power plugs

from __future__ import print_function

import sys

from roundup import date, instance

# position for arguments
tracker_home_pos = 1
optional_interval_pos = 2

# gather args
arg_len = len(sys.argv)
# map pos to length by adding 1.
if arg_len not in [tracker_home_pos + 1, optional_interval_pos + 1]:
    print('Usage: %s tracker-home [interval -1w]' % sys.argv[0])
    if (arg_len < tracker_home_pos + 1 ):
        print('   You need to specify a tracker home directory')
    sys.exit(1)
instance_home = sys.argv[tracker_home_pos]
lookback_interval = sys.argv[optional_interval_pos] if \
    len(sys.argv) == optional_interval_pos + 1 else '-1w'

# open the instance
instance = instance.open(instance_home)
db = instance.open('admin')

old = date.Date(lookback_interval)

created = []   # [issue_id_created_issue]
summary = {}   # {status_id: [issue_ids in that status]}
messages = []  # [(number_of_messages, issue_id)]

# loop through all the recently-active issues
for issue_id in db.issue.filter(None, {'activity': '-1w;'}):
    message_count = 0
    for _x,ts,_userid,action,data in db.issue.history(issue_id):
        if ts < old:  # history occurred before our current window
            continue
        if action == 'create':
            created.append(issue_id)
        elif action == 'set' and 'messages' in data:
            message_count += 1
        summary.setdefault(db.issue.get(issue_id, 'status'),
                           []).append(issue_id)
    messages.append((message_count, issue_id))

#print('STATUS SUMMARY:')
#for k,v in summary.items():
#    print(k, len(v))

print('\nCREATED:')
if created:
    print('\n'.join(['%s: %s'%(itemid, db.issue.get(itemid, 'title'))
                     for itemid in created]))
else:
    print("No issue created in interval %s" % lookback_interval)

print('\nRESOLVED:')
resolved_id = db.status.lookup('resolved')
if summary:
    # deduplicate - duplicates happen when issue with resolved status
    # has multiple history items (e.g. message or other
    # change after resolution)
    resolved_ids = sorted(set(summary.get(resolved_id, [])), key=int)
    print('\n'.join(['%s: %s' % (itemid, db.issue.get(itemid, 'title'))
                     for itemid in resolved_ids ]))
else:
    print("No issue resolved in interval %s" % lookback_interval)

print('\nTOP TEN MOST DISCUSSED:')

# filter out issues with no messages
messages = [ message for message in messages if message[0] > 0 ]
if messages:
    messages.sort()
    messages.reverse()
    nmax = messages[0][0] or 1
    fmt = '%%%dd - %%s: %%s'%(len(str(nmax)))
    print('\n'.join([fmt%(num, itemid, db.issue.get(itemid, 'title'))
                     for num, itemid in messages[:10]]))
else:
    print("No issues discussed in interval %s" % lookback_interval)

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