print "%s (%d) [%s]: %s" % (issue[len(issues_path)+1:], # +1 for trailing /

									len(mbox)-1,				# number of replies (-1 for self)

									mbox[0]['Subject'])

def add(ui, repo, id = None, comment = 0):

	"""Adds a new issue, or comment to an existing issue ID or its comment COMMENT"""

	comment = int(comment)

	if id:

		issue_fn, issue_id = _find_issue(ui, repo, id)

		if not issue_fn: 

			ui.warn('No such issue')

			return

	default_issue_text  = 		"From: %s\nDate: %s\n" % (user, time.strftime(date_format))

	if not id: 

		default_issue_text += 	"State: %s\n" % default_state

	default_issue_text +=		"Subject: brief description\n\n"

	default_issue_text += 		"Detailed description."

	if not id:

		issue_fn = issues_path

		while os.path.exists(issue_fn):

			issue_id = "%x" % random.randint(2**63, 2**64-1)

			issue_fn = os.path.join(issues_path, issue_id)

	# else: issue_fn already set

	if id and comment not in mbox: 

		ui.warn('No such comment number in mailbox, commenting on the issue itself\n')

	if not id:

		msg.add_header('Message-Id', "%s-0-artemis@%s" % (issue_id, socket.gethostname()))

	else:

		msg.add_header('Message-Id', "%s-%d-artemis@%s" % (issue_id, len(mbox), socket.gethostname()))

		msg.add_header('References', mbox[(comment < len(mbox) and comment) or 0]['Message-Id'])

	# If adding issue, add the new mailbox to the repository

	if not id: 

		repo.add([issue_fn[(len(repo.root)+1):]])			# +1 for the trailing /

		ui.status('Added new issue %s\n' % issue_id)

def show(ui, repo, id, comment = 0, **opts):

	comment = int(comment)

	issue, id = _find_issue(ui, repo, id)

	if opts['all']:

		ui.write('='*70 + '\n')

		for i in xrange(len(mbox)):

			_write_message(ui, mbox[i], i)

			ui.write('-'*70 + '\n')

		return

	_show_mbox(ui, mbox, comment)

	"""Update properties of issue ID"""

	issue, id = _find_issue(ui, repo, id)

	properties_text = ''

		properties_text += '%s=%s\n' % (property, value)

	# Write down a comment about updated properties

	if properties and not opts['no_property_comment']:

		user = ui.username()

		properties_text  = 	"From: %s\nDate: %s\nSubject: properties changes %s\n\n%s" % (user, time.strftime(date_format),

							 [property for property, value in properties], 

							 properties_text)

		msg = mailbox.mboxMessage(properties_text)

		msg.add_header('Message-Id', "%s-%d-artemis@%s" % (id, len(mbox), socket.gethostname()))

		msg.add_header('References', mbox[0]['Message-Id'])

		mbox.add(msg)

	_show_mbox(ui, mbox, 0)

		return False, 0

		return False, 0

	return issues[0], issues[0][len(issues_path)+1:]

def _write_message(ui, message, index = 0):

	if index: ui.write("Comment: %d\n" % index)

	if ui.verbose:

		ui.write(message.as_string().strip() + '\n')

	else:

		if 'From' in message: ui.write('From: %s\n' % message['From'])

		if 'Date' in message: ui.write('Date: %s\n' % message['Date'])

		if 'Subject' in message: ui.write('Subject: %s\n' % message['Subject'])

		if 'State' in message: ui.write('State: %s\n' % message['State'])

		ui.write('\n' + message.get_payload().strip() + '\n')

def _show_mbox(ui, mbox, comment):

	# Output the issue (or comment)

	if comment >= len(mbox): 

		comment = 0

		ui.warn('Comment out of range, showing the issue itself\n')

	msg = mbox[comment]

	ui.write('='*70 + '\n')

	if comment:

		ui.write('Subject: %s\n' % mbox[0]['Subject'])

		ui.write('State: %s\n' % mbox[0]['State'])

		ui.write('-'*70 + '\n')

	_write_message(ui, msg, comment)

	ui.write('-'*70 + '\n')

	# Read the mailbox into the messages and children dictionaries

	messages = {}

	children = {}

	for i in xrange(len(mbox)):

		m = mbox[i]

		messages[m['Message-Id']] = (i,m)

		children.setdefault(m['References'], []).append(m['Message-Id'])

	children[None] = []				# Safeguard against infinte loop on empty Message-Id

	# Iterate over children

	id = msg['Message-Id'] 

	id_stack = (id in children and map(lambda x: (x, 1), reversed(children[id]))) or []

	if not id_stack: return

	ui.write('Comments:\n')

	while id_stack:

		id,offset = id_stack.pop()

		id_stack += (id in children and map(lambda x: (x, offset+1), reversed(children[id]))) or []

		index, msg = messages[id]

		ui.write('  '*offset + ('%d: ' % index) + msg['Subject'] + '\n')

	ui.write('-'*70 + '\n')

				 _('hg iadd [ID] [COMMENT]')),

				 [('a', 'all', None, 'list all comments')], 

				 _('hg ishow [OPTIONS] ID [COMMENT]')),

				  ('n', 'no-property-comment', None, 

				   'do not add a comment about changed properties')],

				 _('hg iupdate [OPTIONS] ID'))