from django.db import transaction
from django.shortcuts import render, redirect

from boards.abstracts.settingsmanager import get_settings_manager
from boards.views.base import BaseBoardView, CONTEXT_FORM
from boards.forms import SettingsForm, PlainErrorList

FORM_THEME = 'theme'

CONTEXT_HIDDEN_TAGS = 'hidden_tags'


class SettingsView(BaseBoardView):

    def get(self, request):
        params = self.get_context_data()
        settings_manager = get_settings_manager(request)

        selected_theme = settings_manager.get_theme()

        form = SettingsForm(initial={FORM_THEME: selected_theme},
                            error_class=PlainErrorList)

        params[CONTEXT_FORM] = form
        params[CONTEXT_HIDDEN_TAGS] = settings_manager.get_hidden_tags()

        # TODO Use dict here
        return render(request, 'boards/settings.html', params)

    def post(self, request):
        settings_manager = get_settings_manager(request)

        with transaction.atomic():
            form = SettingsForm(request.POST, error_class=PlainErrorList)

            if form.is_valid():
                selected_theme = form.cleaned_data[FORM_THEME]

                settings_manager.set_theme(selected_theme)

            return redirect('settings')