from django.shortcuts import render, get_object_or_404, redirect
from django.utils import timezone
from django.contrib import messages
from django.contrib.auth import login
from django.contrib.auth.decorators import login_required
from django.http import HttpResponseForbidden

from .forms import CreateOfferForm, RegistrationForm

from .models import PflaenzliUser, Offer, Wish
from .mail import send_offer_email
from .upload import generate_unique_filename


def list_offers(request, filters=None):
    offers = Offer.objects.all()
    return render(request, "offer/search.html", {"offers": offers})


@login_required
def create_offer(request):
    if request.method == "POST":
        form = CreateOfferForm(request.POST, request.FILES)
        if form.is_valid():
            offer = form.save(commit=False)
            offer.image.name = generate_unique_filename(form.cleaned_data['image'].name)
            offer.user = request.user
            offer.title = offer.title.title()
            offer.save()
            messages.success(request, "Offer uploaded successfully!")
            return redirect("offer_detail", offer.id)
    else:
        form = CreateOfferForm()

    return render(request, "basic_form.html", {"form": form, "button_label": "Create", "title": "Create Offer"})


@ login_required
def offer_detail(request, offer_id):
    offer = get_object_or_404(Offer, id=offer_id)

    return render(request, "offer/detail.html", {"offer": offer, "wishes": ["Monstera", "Tradescantia"]})


@login_required
def offer_delete(request, offer_id):
    offer = get_object_or_404(Offer, id=offer_id)
    if offer.user != request.user:
        return HttpResponseForbidden()

    offer.delete()
    messages.success(request, "Offer deleted successfully!")
    return redirect("list_offers")


@login_required
def offer_edit(request, offer_id):
    offer = get_object_or_404(Offer, id=offer_id)
    if offer.user != request.user:
        return HttpResponseForbidden()

    if request.method == "POST":
        form = CreateOfferForm(request.POST, request.FILES, instance=offer)
        if form.is_valid():
            offer = form.save(commit=False)
            offer.image.name = generate_unique_filename(form.cleaned_data['image'].name)
            offer.user = request.user
            offer.save()
            messages.success(request, "Offer updated successfully!")
            return redirect("offer_detail", offer.id)
    else:
        form = CreateOfferForm(instance=offer)

    return render(request, "basic_form.html", {"form": form, "button_label": "Update", "title": "Edit Offer"})


@login_required
def offer_trade(request, offer_id):
    offer = get_object_or_404(Offer, id=offer_id)
    sender = request.user
    recipient = offer.user

    if sender != recipient:
        send_offer_email(request, offer, sender, recipient)
        messages.success(request, f"{recipient.username} was successfully notified")
    else:
        messages.error(request, "You can't trade with yourself!")

    return redirect("offer_detail", offer_id)


def user_detail(request, user_id):
    user = get_object_or_404(PflaenzliUser, id=user_id)
    offers = Offer.objects.filter(user=user_id)
    wishes = Wish.objects.filter(user=user_id)

    return render(request, "user/public.html", {"user": user, "offers": offers, "wishes": wishes})


def register_user(request):
    if request.method == "POST":
        form = RegistrationForm(request.POST)
        if form.is_valid():
            user = form.save()
            login(request, user)
            return redirect("index")
    else:
        form = RegistrationForm()

    return render(request, "basic_form.html", {"form": form, "button_label": "Register", "title": "Registeration"})