# noinspection PyUnresolvedReferences
from constance.admin import Config
from constance.admin import ConstanceAdmin as BaseConstanceAdmin
from django.apps import apps
from django.contrib import admin
from django.contrib.admin import ModelAdmin, TabularInline
from django.contrib.gis.admin import GISModelAdmin
from django.db.models import Model
from django.utils.translation import gettext_lazy as _
from modeltranslation.translator import translator
from modeltranslation.utils import get_translation_fields
from mptt.admin import DraggableMPTTAdmin

from evibes.settings import CONSTANCE_CONFIG

from .forms import OrderForm, OrderProductForm, VendorForm
from .models import (
    Address,
    Attribute,
    AttributeGroup,
    AttributeValue,
    Brand,
    Category,
    CategoryTag,
    Feedback,
    Order,
    OrderProduct,
    Product,
    ProductImage,
    ProductTag,
    PromoCode,
    Promotion,
    Stock,
    Vendor,
    Wishlist,
)


class TranslationFieldsetMixin:
    model: Model

    def get_fieldsets(self, request, obj=None):
        fieldsets = super().get_fieldsets(request, obj)
        opts = translator.get_options_for_model(self.model)
        translation_fields = []
        for orig in opts.local_fields:
            translation_fields += get_translation_fields(orig)
        if translation_fields:
            fieldsets = list(fieldsets)
            fieldsets.append(
                (
                    _("translations"),
                    {"fields": translation_fields},
                )
            )
        return fieldsets


class BasicModelAdmin(ModelAdmin):
    @admin.action(description=str(_("activate selected %(verbose_name_plural)s")))
    def activate_selected(self, _request, queryset) -> str:
        queryset.update(is_active=True)
        return str(_("%(verbose_name_plural)s activated successfully!"))

    @admin.action(description=str(_("deactivate selected %(verbose_name_plural)s")))
    def deactivate_selected(self, _request, queryset) -> str:
        queryset.update(is_active=False)
        return str(_("%(verbose_name_plural)s deactivated successfully."))

    def get_actions(self, request):
        actions = super().get_actions(request)
        actions["activate_selected"] = (
            self.activate_selected,
            "activate_selected",
            str(_("activate selected %(verbose_name_plural)s")),
        )
        actions["deactivate_selected"] = (
            self.deactivate_selected,
            "deactivate_selected",
            str(_("deactivate selected %(verbose_name_plural)s")),
        )
        return actions


class AttributeValueInline(TabularInline):
    model = AttributeValue
    extra = 0
    is_navtab = True
    verbose_name = _("attribute value")
    verbose_name_plural = _("attribute values")
    autocomplete_fields = ["attribute"]
    icon = "fa-regular fa-circle-dot"


class ProductImageInline(TabularInline):
    model = ProductImage
    extra = 0
    is_navtab = True
    verbose_name = _("image")
    verbose_name_plural = _("images")
    icon = "fa-regular fa-images"


class StockInline(TabularInline):
    model = Stock
    extra = 0
    is_navtab = True
    verbose_name = _("stock")
    verbose_name_plural = _("stocks")
    icon = "fa-regular fa-boxes-stacked"


class OrderProductInline(TabularInline):
    model = OrderProduct
    extra = 0
    readonly_fields = ("product", "quantity", "buy_price")
    form = OrderProductForm
    is_navtab = True
    verbose_name = _("order product")
    verbose_name_plural = _("order products")
    icon = "fa-regular fa-circle-dot"

    def get_queryset(self, request):
        return (
            super()
            .get_queryset(request)
            .select_related("product")
            .only("product__name")
        )


class CategoryChildrenInline(TabularInline):
    model = Category
    fk_name = "parent"
    extra = 0
    fields = ("name", "description", "is_active", "image", "markup_percent")
    icon = "fa-regular fa-circle-dot"


# Admin registrations
@admin.register(AttributeGroup)
class AttributeGroupAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name", "modified")
    search_fields = ("uuid", "name")


@admin.register(Attribute)
class AttributeAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name", "group", "value_type", "modified")
    list_filter = ("value_type", "group", "is_active")
    search_fields = ("uuid", "name", "group__name")
    autocomplete_fields = ["categories", "group"]


@admin.register(AttributeValue)
class AttributeValueAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("attribute", "value", "modified")
    list_filter = ("attribute__group", "is_active")
    search_fields = ("uuid", "value", "attribute__name")
    autocomplete_fields = ["attribute"]


@admin.register(Category)
class CategoryAdmin(TranslationFieldsetMixin, DraggableMPTTAdmin, BasicModelAdmin):
    mptt_indent_field = "name"
    list_display = ("indented_title", "parent", "is_active", "modified")
    list_filter = ("is_active", "level", "created", "modified")
    list_display_links = ("indented_title",)
    search_fields = ("uuid", "name")
    inlines = [CategoryChildrenInline]
    autocomplete_fields = ["parent", "tags"]
    readonly_fields = ("uuid", "slug", "created", "modified")

    def indented_title(self, instance):
        return instance.name

    indented_title.short_description = _("name")
    indented_title.admin_order_field = "name"


@admin.register(Brand)
class BrandAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name",)
    list_filter = ("categories", "is_active")
    search_fields = ("uuid", "name", "categories__name")
    readonly_fields = ("uuid", "slug")


@admin.register(Product)
class ProductAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = (
        "name",
        "partnumber",
        "is_active",
        "category",
        "brand",
        "price",
        "rating",
        "modified",
    )
    list_filter = (
        "is_active",
        "is_digital",
        ("tags", admin.RelatedOnlyFieldListFilter),
        ("stocks__vendor", admin.RelatedOnlyFieldListFilter),
        "created",
        "modified",
    )
    search_fields = (
        "name",
        "partnumber",
        "brand__name",
        "category__name",
        "uuid",
        "slug",
    )
    readonly_fields = ("created", "modified", "uuid", "rating", "price", "slug")
    autocomplete_fields = ("category", "brand", "tags")
    fieldsets = (
        (
            "general",
            {"fields": ("name", "slug", "partnumber", "is_active", "is_digital")},
        ),
        ("relations", {"fields": ("category", "brand", "tags")}),
        ("metadata", {"fields": ("uuid",)}),
        ("timestamps", {"fields": ("created", "modified")}),
    )
    inlines = [AttributeValueInline, ProductImageInline, StockInline]

    def price(self, obj):
        return obj.price

    price.short_description = _("price")

    def rating(self, obj):
        return obj.rating

    rating.short_description = _("rating")

    def get_changelist(self, request, **kwargs):
        cl = super().get_changelist(request, **kwargs)
        cl.filter_input_length = 64
        return cl


@admin.register(ProductTag)
class ProductTagAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name",)
    search_fields = ("name",)


@admin.register(CategoryTag)
class CategoryTagAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name",)
    search_fields = ("name",)


@admin.register(Vendor)
class VendorAdmin(BasicModelAdmin):
    list_display = ("name", "markup_percent", "modified")
    list_filter = ("markup_percent", "is_active")
    search_fields = ("name",)
    form = VendorForm


@admin.register(Feedback)
class FeedbackAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("order_product", "rating", "comment", "modified")
    list_filter = ("rating", "is_active")
    search_fields = ("order_product__product__name", "comment")


@admin.register(Order)
class OrderAdmin(BasicModelAdmin):
    list_display = (
        "human_readable_id",
        "user",
        "is_business",
        "status",
        "total_price",
        "buy_time",
        "modified",
    )
    list_filter = ("status", "buy_time", "modified", "created")
    search_fields = ("user__email", "status", "uuid", "human_readable_id")
    readonly_fields = ("total_price", "total_quantity", "buy_time", "human_readable_id")
    inlines = [OrderProductInline]
    form = OrderForm

    def is_business(self, obj):
        return obj.is_business

    is_business.short_description = _("is business")

    def get_queryset(self, request):
        return (
            super()
            .get_queryset(request)
            .prefetch_related(
                "user",
                "shipping_address",
                "billing_address",
                "order_products",
                "promo_code",
            )
        )

    def save_model(self, request, obj, form, change):
        if form.cleaned_data.get("attributes") is None:
            obj.attributes = None
        if form.cleaned_data.get("notifications") is None:
            obj.notifications = None
        super().save_model(request, obj, form, change)


@admin.register(OrderProduct)
class OrderProductAdmin(BasicModelAdmin):
    list_display = ("order", "product", "quantity", "buy_price", "status", "modified")
    list_filter = ("status",)
    search_fields = ("order__user__email", "product__name")
    form = OrderProductForm

    def get_queryset(self, request):
        return super().get_queryset(request).prefetch_related("order", "product")

    def save_model(self, request, obj, form, change):
        if form.cleaned_data.get("attributes") is None:
            obj.attributes = None
        if form.cleaned_data.get("notifications") is None:
            obj.notifications = None
        super().save_model(request, obj, form, change)


@admin.register(PromoCode)
class PromoCodeAdmin(BasicModelAdmin):
    list_display = (
        "code",
        "discount_percent",
        "discount_amount",
        "start_time",
        "end_time",
        "used_on",
    )
    list_filter = ("discount_percent", "discount_amount", "start_time", "end_time")
    search_fields = ("code",)

    def get_queryset(self, request):
        return super().get_queryset(request).prefetch_related("user")


@admin.register(Promotion)
class PromotionAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("name", "discount_percent", "modified")
    search_fields = ("name",)
    autocomplete_fields = ("products",)

    def get_queryset(self, request):
        return super().get_queryset(request).prefetch_related("products")


@admin.register(Stock)
class StockAdmin(BasicModelAdmin):
    list_display = ("product", "vendor", "sku", "quantity", "price", "modified")
    list_filter = ("vendor", "quantity")
    search_fields = ("product__name", "vendor__name", "sku")
    autocomplete_fields = ("product", "vendor")


@admin.register(Wishlist)
class WishlistAdmin(BasicModelAdmin):
    list_display = ("user", "modified")
    search_fields = ("user__email",)


@admin.register(ProductImage)
class ProductImageAdmin(TranslationFieldsetMixin, BasicModelAdmin):
    list_display = ("alt", "product", "priority", "modified")
    list_filter = ("priority",)
    search_fields = ("alt", "product__name")
    autocomplete_fields = ("product",)


@admin.register(Address)
class AddressAdmin(GISModelAdmin):
    list_display = ("street", "city", "region", "country", "user")
    list_filter = ("country", "region")
    search_fields = (
        "raw_data",
        "street",
        "city",
        "postal_code",
        "user__email",
        "address_line",
    )
    gis_widget_kwargs = {
        "attrs": {
            "default_lon": 37.61556,
            "default_lat": 55.75222,
            "default_zoom": 6,
        }
    }


# Constance config
class ConstanceConfig:
    class Meta:
        app_label = "core"
        object_name = "Config"
        concrete_model = None
        model_name = module_name = "config"
        verbose_name_plural = _("config")
        abstract = False
        swapped = False
        is_composite_pk = False

        def get_change_permission(self):
            return f"change_{self.model_name}"

        @property
        def app_config(self):
            return apps.get_app_config(self.app_label)

        @property
        def label(self):
            return f"{self.app_label}.{self.object_name}"

        @property
        def label_lower(self):
            return f"{self.app_label}.{self.model_name}"

        def get_ordered_objects(self):
            return False

    _meta = Meta()


admin.site.unregister([Config])
admin.site.register([ConstanceConfig], BaseConstanceAdmin)
admin.site.site_title = f"{CONSTANCE_CONFIG.get('PROJECT_NAME')[0]}"
admin.site.site_header = "eVibes"
admin.site.index_title = f"{CONSTANCE_CONFIG.get('PROJECT_NAME')[0]}"