import json

from jinja2 import Environment
from markupsafe import Markup
from webpack_loader.templatetags.webpack_loader import render_bundle
from django.urls import reverse
from django.contrib import messages
from django.conf import settings
from django.templatetags.static import static
from django.utils.translation import gettext, ngettext


def get_app_config(request):
    info_dict = {
        'debug': settings.DEBUG,
        'isAuthenticated': False,
        'user': None,
        'baseUrl': settings.FORCE_SCRIPT_NAME,
    }
    if request.user and request.user.is_authenticated:
        info_dict['isAuthenticated'] = True
        info_dict['user'] = {
            'username': request.user.username,
            'email': request.user.email,
            'phone': request.user.phone,
            'name': request.user.name,
            'isSuperUser': request.user.is_superuser,
            'isStaff': request.user.is_staff,
            'lastLogin': request.user.last_login.strftime('%Y-%m-%d'),
            'avatar_url': request.user.avatar_url,
            'permissions': list(request.user.get_all_permissions())
        }
    return json.dumps(info_dict, separators=(',', ':'))


def environment(**options):
    env = Environment(**options)
    env.install_gettext_callables(gettext, ngettext, newstyle=True)
    env.globals.update({
        # webpack_loader 版本太老了，还在用旧的 jinja2 扩展，在这里暂时 monkey patch 一下
        'render_bundle': lambda *a, **k: Markup(render_bundle(*a, **k)),
        'static': static,
        'json_loads': json.loads,
        'reverse': reverse,
        'get_messages': messages.get_messages,
        'get_app_config': get_app_config,
        'django_settings': settings
    })
    return env