import uuid

from django.contrib.auth.mixins import LoginRequiredMixin
from django.http import HttpResponseBadRequest
from django.shortcuts import render
from django.views import View

from core.models import Callback, Hook


def get_callbacks(hook=None, user=None):
    if user:
        callbacks = Callback.objects.filter(hook__user=user)
    elif hook:
        callbacks = Callback.objects.filter(hook=hook)
    return callbacks


class Callbacks(LoginRequiredMixin, View):
    allowed_types = ["modal", "widget", "window", "page"]
    window_content = "window-content/callbacks.html"

    async def get(self, request, type, hook_id=None):
        if type not in self.allowed_types:
            return HttpResponseBadRequest
        template_name = f"wm/{type}.html"
        unique = str(uuid.uuid4())[:8]

        if hook_id:
            try:
                hook = Hook.objects.get(id=hook_id, user=request.user)
            except Hook.DoesNotExist:
                message = "Hook does not exist."
                message_class = "danger"
                context = {
                    "message": message,
                    "class": message_class,
                    "type": type,
                }
                return render(request, template_name, context)
            callbacks = get_callbacks(hook)
        else:
            callbacks = get_callbacks(user=request.user)
        if type == "page":
            type = "modal"

        context = {
            "title": f"Callbacks ({type})",
            "unique": unique,
            "window_content": self.window_content,
            "items": callbacks,
            "type": type,
        }
        return render(request, template_name, context)