from django.shortcuts import render, redirect
from django.utils.decorators import method_decorator
from django.views.decorators.csrf import csrf_protect

from boards.abstracts.settingsmanager import get_settings_manager
from boards.models.attachment import AttachmentSticker, Attachment
from boards.views.base import BaseBoardView

CONTEXT_GLOBAL_STICKERS = 'global_stickers'
CONTEXT_LOCAL_STICKERS = 'local_stickers'

TEMPLATE = 'boards/aliases.html'


class AliasesView(BaseBoardView):
    @method_decorator(csrf_protect)
    def get(self, request, category=None):
        result = self._process_creation(request)
        if result:
            return result

        params = dict()

        if category:
            params[CONTEXT_GLOBAL_STICKERS] = AttachmentSticker.objects.filter(
                name__startswith=(category + '/'))
        else:
            params[CONTEXT_GLOBAL_STICKERS] = AttachmentSticker.objects.all()
        params[CONTEXT_LOCAL_STICKERS] = get_settings_manager(request).get_stickers()

        return render(request, TEMPLATE, params)

    def _process_creation(self, request):
        action = request.GET.get('action')
        if action == 'add' and 'name' in request.GET and 'id' in request.GET:
            name = request.GET['name']
            id = request.GET['id']
            attachment = Attachment.objects.get(id=id)
            get_settings_manager(request).add_attachment_alias(name, attachment)

            return redirect('stickers')
        if action == 'remove' and 'name' in request.GET:
            name = request.GET['name']
            get_settings_manager(request).remove_attachment_alias(name)
            return redirect('stickers')