from django.contrib import admin
from .models import *
from .api import create_app
from django.utils.translation import gettext_lazy as _
from requests.exceptions import Timeout
from django.core.exceptions import ObjectDoesNotExist

# Register your models here.
@admin.register(MastodonApplication)
class MastodonApplicationModelAdmin(admin.ModelAdmin):

    def add_view(self, request, form_url='', extra_context=None):
        """
        Dirty code here, use POST['domain_name'] to pass error message to user.
        """
        if request.method == 'POST':
            if not request.POST.get('client_id') and not request.POST.get('client_secret'):
                # make the post data mutable
                request.POST = request.POST.copy()
                # (is_proxy xor proxy_to) or (proxy_to!=null and is_proxy=false)
                if (bool(request.POST.get('is_proxy')) or bool(request.POST.get('proxy_to'))) and\
                    not (bool(request.POST.get('is_proxy')) and bool(request.POST.get('proxy_to'))) or\
                    (not bool(request.POST.get('is_proxy')) and bool(request.POST.get('proxy_to'))):
                    request.POST['domain_name'] = _("请同时填写is_proxy和proxy_to。")
                else:
                    if request.POST.get("is_proxy"):
                        try:
                            origin = MastodonApplication.objects.get(domain_name=request.POST['proxy_to'])
                            # set proxy credentials to those of its original site
                            request.POST['app_id'] = origin.app_id
                            request.POST['client_id'] = origin.client_id
                            request.POST['client_secret'] = origin.client_secret
                            request.POST['vapid_key'] = origin.vapid_key
                        except ObjectDoesNotExist:
                            request.POST['domain_name'] = _("proxy_to所指域名不存在，请先添加原站点。")
                    else:
                        # create mastodon app
                        try:
                            response = create_app(request.POST.get('domain_name'))
                        except (Timeout, ConnectionError):
                            request.POST['domain_name'] = _("联邦网络请求超时。")
                        except Exception as e:
                            request.POST['domain_name'] = str(e)
                        else:
                            # fill the form with returned data
                            data = response.json()
                            if response.status_code != 200:
                                request.POST['domain_name'] = str(data)
                            else:
                                request.POST['app_id'] = data['id']
                                request.POST['client_id'] = data['client_id']
                                request.POST['client_secret'] = data['client_secret']
                                request.POST['vapid_key'] = data['vapid_key']


        return super().add_view(request, form_url=form_url, extra_context=extra_context)


admin.site.register(CrossSiteUserInfo)