from django.contrib.auth.decorators import login_required
from django.contrib.auth.models import User
from django.shortcuts import redirect, render, get_object_or_404
from home.models import ChatMessage
from purchase.models import PurchasableProduct
from django.views.decorators.http import require_http_methods


# Chat admin + user views (restored)
@login_required
def admin_chat_dashboard(request):
    chats = ChatMessage.get_all_user_senders()
    return render(request, "chat/admin/admin_chat_dashboard.html", {"chats": chats})


@login_required
def admin_chat(request, user_id):
    chat_user = User.objects.filter(id=user_id, is_staff=False).first()
    chat_messages = ChatMessage.get_support_chat(chat_user)
    return render(
        request,
        "chat/admin/admin_chat.html",
        {"chat_user": chat_user, "chat_messages": chat_messages},
    )


@login_required
def user_chat(request):
    if request.user.is_staff:
        return redirect("admin_chat_dashboard")
    chat_messages = ChatMessage.get_support_chat(request.user)
    return render(request, "chat/user_chat.html", {"chat_messages": chat_messages})


@login_required
def user_chat_send(request, user_id):
    if request.method == "POST":
        content = request.POST.get("content")
        content = content.strip() if content else ""
        if content:
            user = User.objects.filter(id=user_id).first()
            ChatMessage.objects.create(user=user, sender=request.user, content=content)
    if request.user.is_staff:
        return redirect("admin_chat", user_id=user_id)
    return redirect("user_chat")


# PurchasableProduct admin views
@login_required
def admin_purchase_dashboard(request):
    products = PurchasableProduct.objects.all().order_by("-created_at")
    return render(
        request, "purchase/admin/admin_purchase_dashboard.html", {"products": products}
    )


@login_required
@require_http_methods(["GET", "POST"])
def admin_purchase(request, product_id=None):
    product = None
    if product_id:
        product = get_object_or_404(PurchasableProduct, id=product_id)

    if request.method == "POST":
        # Handle create/update/delete actions
        action = request.POST.get("action")
        name = request.POST.get("name", "").strip()
        description = request.POST.get("description", "").strip()
        price = request.POST.get("price_cents")
        currency = request.POST.get("currency", "pln").strip()

        if action == "delete" and product:
            product.delete()
            return redirect("admin_purchase_dashboard")

        # Create or update
        if not name or not price:
            # Simple validation: require name and price
            error = "Name and price are required"
            return render(
                request,
                "purchase/admin/admin_purchase.html",
                {"product": product, "error": error},
            )

        price_cents = int(price)
        if product:
            product.name = name
            product.description = description
            product.price_cents = price_cents
            product.currency = currency
            product.save()
        else:
            PurchasableProduct.objects.create(
                name=name,
                description=description,
                price_cents=price_cents,
                currency=currency,
            )
        return redirect("admin_purchase_dashboard")

    return render(request, "purchase/admin/admin_purchase.html", {"product": product})