#  This file is part of Recent changes Goat compatible Discord webhook (RcGcDw).
#
#  RcGcDw 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 3 of the License, or
#  (at your option) any later version.
#
#  RcGcDw 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 RcGcDw.  If not, see <http://www.gnu.org/licenses/>.
import gettext
from typing import Callable, Optional

from src.api.context import Context
from src.discord.message import DiscordMessage, DiscordMessageMetadata
from src.discord.queue import send_to_discord
from src.api.util import compact_summary, compact_author, clean_link, sanitize_to_url, sanitize_to_markdown
from src.api.hook import pre_hook
from src.configloader import settings

# {
#     "hooks": {
#         "talk_notify": {
#             "default": ["https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"],
#             "lang": "en",
#             "namespace": {
#                 "10001": ["https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"],
#                 "10003": ["https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"],
#                 "10005": ["https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"],
#                 "10007": ["https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"]
#             },
#             "pages": {
#                 "Minecraft Wiki talk:Community videos": [
#                     "https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa",
#                     "https://discord.com/api/webhooks/111111111111111111/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa"
#                 ]
#             },
#             "extra_pages": {
#                 "exact": ["Minecraft Wiki:Admin noticeboard"],
#                 "partial": ["Minecraft Wiki:Forum/"]
#             }
#         }
#     }
# }
talk_notify = settings.get("hooks", {}).get("talk_notify", {})


@pre_hook
def talk_notify_hook(context: Context, change: dict):
    if not talk_notify.get("default", []) or context.event not in ("edit", "new"):
        return
    if change.get("minor", False) or change["ns"] == 3:
        return
    ignore = change["ns"] % 2 == 0
    if ignore and talk_notify.get("extra_pages", {}):
        extra = talk_notify.get("extra_pages", {})
        if extra.get("exact", []):
            ignore = ignore and change["title"] not in extra.get("exact", [])
        if extra.get("partial", []):
            ignore = ignore and not any(page in change["title"] for page in extra.get("partial", []))
    if ignore:
        return
    parsed_comment = compact_summary(context)
    author, author_url = compact_author(context, change)
    edit_link = clean_link("{wiki}index.php?title={article}&curid={pageid}&diff={diff}&oldid={oldrev}".format(
        wiki=context.client.WIKI_SCRIPT_PATH, pageid=change["pageid"], diff=change["revid"], oldrev=change["old_revid"],
        article=sanitize_to_url(change["title"])))
    edit_size = change["newlen"] - change["oldlen"]
    sign = ""
    if edit_size > 0:
        sign = "+"
    bold = ""
    if abs(edit_size) > 500:
        bold = "**"
    translator: Optional[Callable] = None
    if settings["lang"] != talk_notify.get("lang", settings["lang"]):
        translator = gettext.translation('formatters', localedir='locale', languages=[talk_notify.get("lang", settings["lang"])]).gettext
    else:
        translator = context.gettext
    if context.event == "edit":
        content = translator(
            "[{author}]({author_url}) edited [{article}]({edit_link}){comment} {bold}({sign}{edit_size}){bold}").format(
            author=author, author_url=author_url, article=sanitize_to_markdown(change["title"]).replace("\\:", ":"), edit_link=edit_link, comment=parsed_comment,
            edit_size=edit_size, sign=sign, bold=bold)
    else:
        content = translator(
            "[{author}]({author_url}) created [{article}]({edit_link}){comment} {bold}({sign}{edit_size}){bold}").format(
            author=author, author_url=author_url, article=sanitize_to_markdown(change["title"]).replace("\\:", ":"), edit_link=edit_link, comment=parsed_comment,
            edit_size=edit_size, sign=sign, bold=bold)
    webhook_list = talk_notify.get("default", [])
    if str(change["ns"]) in talk_notify.get("namespace", {}):
        webhook_list = talk_notify.get("namespace", {}).get(str(change["ns"]), webhook_list)
    if change["title"] in talk_notify.get("pages", {}):
        webhook_list = talk_notify.get("pages", {}).get(change["title"], webhook_list)
    for webhook in webhook_list:
        msg = DiscordMessage("compact", context.event, webhook, content=content)
        send_to_discord(msg, DiscordMessageMetadata("POST"))