#!/usr/bin/env python3
#
# Zulip notification post-commit hook.
#
# The "post-commit" script is run after a transaction is completed and a new
# revision is created.  It is passed arguments on the command line in this
# form:
#  <path> <revision>
# For example:
# /srv/svn/carols 1843

import os
import os.path
import sys
from typing import Any, Dict, Optional, Text, Tuple

import pysvn

sys.path.insert(0, os.path.dirname(__file__))
import zulip_svn_config as config

VERSION = "0.9"

if config.ZULIP_API_PATH is not None:
    sys.path.append(config.ZULIP_API_PATH)

import zulip

client = zulip.Client(
    email=config.ZULIP_USER,
    site=config.ZULIP_SITE,
    api_key=config.ZULIP_API_KEY,
    client="ZulipSVN/" + VERSION)  # type: zulip.Client
svn = pysvn.Client()  # type: pysvn.Client

path, rev = sys.argv[1:]  # type: Tuple[Text, Text]

# since its a local path, prepend "file://"
path = "file://" + path

entry = svn.log(path, revision_end=pysvn.Revision(pysvn.opt_revision_kind.number, rev))[0]  # type: Dict[Text, Any]
message = "**{}** committed revision r{} to `{}`.\n\n> {}".format(
    entry['author'],
    rev,
    path.split('/')[-1],
    entry['revprops']['svn:log'])  # type: Text

destination = config.commit_notice_destination(path, rev)  # type: Optional[Dict[Text, Text]]

if destination is not None:
    message_data = {
        "type": "stream",
        "to": destination["stream"],
        "subject": destination["subject"],
        "content": message,
    }  # type: Dict[str, Any]
    client.send_message(message_data)