from typing import Any, Dict

from django.http import HttpRequest, HttpResponse
from django.utils.translation import ugettext as _

from zerver.decorator import api_key_only_webhook_view
from zerver.lib.request import REQ, has_request_variables
from zerver.lib.response import json_error, json_success
from zerver.lib.webhooks.common import check_send_webhook_message
from zerver.models import UserProfile


@api_key_only_webhook_view('Zapier', notify_bot_owner_on_invalid_json=False)
@has_request_variables
def api_zapier_webhook(request: HttpRequest, user_profile: UserProfile,
                       payload: Dict[str, Any]=REQ(argument_type='body')) -> HttpResponse:
    if payload.get('type') == 'auth':
        # The bot's details are used by our Zapier app to format a connection
        # label for users to be able to distinguish between different Zulip
        # bots and API keys in their UI
        return json_success({
            'full_name': user_profile.full_name,
            'email': user_profile.email,
            'id': user_profile.id,
        })

    topic = payload.get('topic')
    content = payload.get('content')

    if topic is None:
        topic = payload.get('subject')  # Backwards-compatibility
        if topic is None:
            return json_error(_("Topic can't be empty"))

    if content is None:
        return json_error(_("Content can't be empty"))

    check_send_webhook_message(request, user_profile, topic, content)
    return json_success()