from django.contrib import admin

from orders.models import Cart, CartItem, Order, OrderItem


class CartItemInline(admin.TabularInline):
    model = CartItem
    extra = 0


@admin.register(Cart)
class CartAdmin(admin.ModelAdmin):
    list_display = ("user", "updated_at", "created_at")
    search_fields = ("user__username", "user__email")
    inlines = [CartItemInline]


@admin.register(CartItem)
class CartItemAdmin(admin.ModelAdmin):
    list_display = ("item", "cart", "quantity", "updated_at")
    list_select_related = ("cart", "item", "cart__user")
    search_fields = ("item__name", "cart__user__username", "cart__user__email")


class OrderItemInline(admin.TabularInline):
    model = OrderItem
    extra = 0
    readonly_fields = ("item", "item_name", "item_slug", "item_price", "quantity", "line_total")
    can_delete = False


@admin.register(Order)
class OrderAdmin(admin.ModelAdmin):
    list_display = ("id", "customer_name", "email", "phone", "status", "total", "created_at")
    list_filter = ("status", "delivery_method", "payment_method", "created_at")
    list_select_related = ("user",)
    search_fields = ("id", "customer_name", "email", "phone", "user__username", "user__email")
    readonly_fields = (
        "user",
        "customer_name",
        "phone",
        "email",
        "delivery_method",
        "region",
        "address",
        "payment_method",
        "promo_code",
        "products_total",
        "discount_total",
        "delivery_total",
        "floor_lift_total",
        "total",
        "status",
        "created_at",
    )
    inlines = [OrderItemInline]


@admin.register(OrderItem)
class OrderItemAdmin(admin.ModelAdmin):
    list_display = ("item_name", "order", "quantity", "item_price", "line_total")
    list_select_related = ("order", "item")
    search_fields = ("item_name", "order__customer_name", "order__email")