from django import forms
from django.conf import settings
from django.db import models
from django.shortcuts import get_object_or_404, redirect
from django.utils.decorators import method_decorator
from django.views.generic import FormView, ListView, View
from django_htmx.http import HttpResponseClientRefresh

from activities.models import Emoji
from users.decorators import moderator_required


@method_decorator(moderator_required, name="dispatch")
class EmojiRoot(ListView):

    template_name = "admin/emoji.html"
    paginate_by = 50

    def get(self, request, *args, **kwargs):
        self.query = request.GET.get("query")
        self.local_only = request.GET.get("local_only")
        self.extra_context = {
            "section": "emoji",
            "query": self.query or "",
            "local_only": self.local_only,
        }
        return super().get(request, *args, **kwargs)

    def get_queryset(self):
        queryset = Emoji.objects.filter().order_by("shortcode", "domain_id")
        if self.local_only:
            queryset = queryset.filter(local=True)
        if self.query:
            query = self.query.lower().strip().lstrip("@")
            queryset = queryset.filter(
                models.Q(shortcode__icontains=query) | models.Q(domain_id=query)
            )
        return queryset


@method_decorator(moderator_required, name="dispatch")
class EmojiCreate(FormView):

    template_name = "admin/emoji_create.html"
    extra_context = {"section": "emoji"}

    class form_class(forms.Form):
        shortcode = forms.SlugField(
            help_text="What users type to use the emoji :likethis:",
        )
        image = forms.ImageField(
            help_text="The emoji image\nShould be at least 40 x 40 pixels, and under 50kb",
        )

        def clean_image(self):
            data = self.cleaned_data["image"]
            if data.size > settings.SETUP.EMOJI_MAX_IMAGE_FILESIZE_KB:
                raise forms.ValidationError("Image filesize is too large")
            return data

    def form_valid(self, form):
        Emoji.objects.create(
            shortcode=form.cleaned_data["shortcode"],
            file=form.cleaned_data["image"],
            mimetype=form.cleaned_data["image"].image.get_format_mimetype(),
            local=True,
            public=True,
        )
        return redirect(Emoji.urls.admin)


@method_decorator(moderator_required, name="dispatch")
class EmojiDelete(View):
    """
    Deletes an emoji
    """

    def post(self, request, id):
        self.emoji = get_object_or_404(Emoji, pk=id)
        self.emoji.delete()
        return HttpResponseClientRefresh()


@method_decorator(moderator_required, name="dispatch")
class EmojiEnable(View):
    """
    Sets an emoji to be enabled (or not!)
    """

    enable = True

    def post(self, request, id):
        self.emoji = get_object_or_404(Emoji, pk=id)
        self.emoji.public = self.enable
        self.emoji.save()
        return HttpResponseClientRefresh()