from contextlib import suppress
from typing import Any, ClassVar, Type

from constance.admin import Config
from constance.admin import ConstanceAdmin as BaseConstanceAdmin
from django.apps import AppConfig, apps
from django.conf import settings
from django.contrib.admin import register, site
from django.contrib.gis.admin import GISModelAdmin
from django.contrib.messages import constants as messages
from django.db.models import Model
from django.db.models.query import QuerySet
from django.http import HttpRequest
from django.utils.translation import gettext_lazy as _
from django_celery_beat.admin import ClockedScheduleAdmin as BaseClockedScheduleAdmin
from django_celery_beat.admin import CrontabScheduleAdmin as BaseCrontabScheduleAdmin
from django_celery_beat.admin import PeriodicTaskAdmin as BasePeriodicTaskAdmin
from django_celery_beat.admin import PeriodicTaskForm, TaskSelectWidget
from django_celery_beat.models import (
    ClockedSchedule,
    CrontabSchedule,
    IntervalSchedule,
    PeriodicTask,
    SolarSchedule,
)
from djangoql.admin import DjangoQLSearchMixin
from import_export.admin import ImportExportModelAdmin
from modeltranslation.translator import NotRegistered, translator
from modeltranslation.utils import get_translation_fields
from mptt.admin import DraggableMPTTAdmin
from unfold.admin import ModelAdmin, TabularInline
from unfold.contrib.import_export.forms import ExportForm, ImportForm
from unfold.decorators import action
from unfold.widgets import UnfoldAdminSelectWidget, UnfoldAdminTextInputWidget

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


class FieldsetsMixin:
    general_fields: list[str] | None = []
    relation_fields: list[str] | None = []
    additional_fields: list[str] | None = []
    model: ClassVar[Type[Model]]

    def get_fieldsets(self, request: HttpRequest, obj: Any = None) -> list[tuple[str, dict[str, list[str]]]]:
        if request:
            pass

        if obj:
            pass

        fieldsets = []

        def add_translations_fieldset(
            fss: list[tuple[str, dict[str, list[str]]]],
        ) -> list[tuple[str, dict[str, list[str]]]]:
            with suppress(NotRegistered):
                transoptions = translator.get_options_for_model(self.model)
                translation_fields = []
                for orig in transoptions.local_fields:
                    translation_fields += get_translation_fields(orig)
                if translation_fields:
                    fss = list(fss) + [(_("translations"), {"classes": ["tab"], "fields": translation_fields})]  # type: ignore [list-item]
            return fss

        if self.general_fields:
            fieldsets.append((_("general"), {"classes": ["tab"], "fields": self.general_fields}))
        if self.relation_fields:
            fieldsets.append((_("relations"), {"classes": ["tab"], "fields": self.relation_fields}))
        if self.additional_fields:
            fieldsets.append((_("additional info"), {"classes": ["tab"], "fields": self.additional_fields}))
        opts = self.model._meta

        meta_fields = []

        if any(f.name == "uuid" for f in opts.fields):
            meta_fields.append("uuid")

        if any(f.name == "slug" for f in opts.fields):
            meta_fields.append("slug")

        if any(f.name == "sku" for f in opts.fields):
            meta_fields.append("sku")

        if any(f.name == "human_readable_id" for f in opts.fields):
            meta_fields.append("human_readable_id")

        if meta_fields:
            fieldsets.append((_("metadata"), {"classes": ["tab"], "fields": meta_fields}))

        ts = []
        for name in ("created", "modified"):
            if any(f.name == name for f in opts.fields):
                ts.append(name)
        if ts:
            fieldsets.append((_("timestamps"), {"classes": ["tab"], "fields": ts}))
        fieldsets = add_translations_fieldset(fieldsets)  # type: ignore [arg-type, assignment]
        return fieldsets  # type: ignore [return-value]


# noinspection PyUnresolvedReferences
class ActivationActionsMixin:
    actions_on_top = True
    actions_on_bottom = True
    actions = [
        "delete_selected",
        "activate_selected",
        "deactivate_selected",
    ]

    @action(description=_("activate selected %(verbose_name_plural)s").lower(), permissions=["change"])
    def activate_selected(self, request: HttpRequest, queryset: QuerySet[Any]) -> None:
        try:
            queryset.update(is_active=True)
            self.message_user(  # type: ignore [attr-defined]
                request=request, message=_("selected items have been activated.").lower(), level=messages.SUCCESS
            )

        except Exception as e:
            self.message_user(request=request, message=str(e), level=messages.ERROR)  # type: ignore [attr-defined]

    @action(description=_("deactivate selected %(verbose_name_plural)s").lower(), permissions=["change"])
    def deactivate_selected(self, request: HttpRequest, queryset: QuerySet[Any]) -> None:
        try:
            queryset.update(is_active=False)
            self.message_user(  # type: ignore [attr-defined]
                request=request, message=_("selected items have been deactivated.").lower(), level=messages.SUCCESS
            )

        except Exception as e:
            self.message_user(request=request, message=str(e), level=messages.ERROR)  # type: ignore [attr-defined]


class AttributeValueInline(TabularInline):  # type: ignore [type-arg]
    model = AttributeValue
    extra = 0
    autocomplete_fields = ["attribute"]
    verbose_name = _("attribute value")
    verbose_name_plural = _("attribute values")
    tab = True

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


class ProductImageInline(TabularInline):  # type: ignore [type-arg]
    model = ProductImage
    extra = 0
    tab = True
    verbose_name = _("image")
    verbose_name_plural = _("images")

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


class StockInline(TabularInline):  # type: ignore [type-arg]
    model = Stock
    extra = 0
    form = StockForm
    tab = True
    verbose_name = _("stock")
    verbose_name_plural = _("stocks")

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


class OrderProductInline(TabularInline):  # type: ignore [type-arg]
    model = OrderProduct
    extra = 0
    readonly_fields = ("product", "quantity", "buy_price")
    form = OrderProductForm
    verbose_name = _("order product")
    verbose_name_plural = _("order products")
    tab = True

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


class CategoryChildrenInline(TabularInline):  # type: ignore [type-arg]
    model = Category
    fk_name = "parent"
    extra = 0
    fields = ("name", "description", "is_active", "image", "markup_percent")
    tab = True
    verbose_name = _("children")
    verbose_name_plural = _("children")


@register(AttributeGroup)
class AttributeGroupAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = AttributeGroup  # type: ignore [misc]
    list_display = (
        "name",
        "modified",
    )
    search_fields = (
        "uuid",
        "name",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "name",
        "parent",
    ]


@register(Attribute)
class AttributeAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Attribute  # type: ignore [misc]
    list_display = (
        "name",
        "group",
        "value_type",
        "modified",
    )
    list_filter = (
        "value_type",
        "group",
        "is_active",
    )
    search_fields = (
        "uuid",
        "name",
        "group__name",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = [
        "group",
    ]
    general_fields = [
        "is_active",
        "name",
        "value_type",
        "is_filterable",
    ]
    relation_fields = [
        "group",
    ]


@register(AttributeValue)
class AttributeValueAdmin(FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = AttributeValue  # type: ignore [misc]
    list_display = (
        "attribute",
        "value",
        "modified",
    )
    list_filter = (
        "attribute__group",
        "is_active",
    )
    search_fields = (
        "uuid",
        "value",
        "attribute__name",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = [
        "attribute",
    ]
    general_fields = [
        "is_active",
        "value",
    ]
    relation_fields = [
        "attribute",
        "product",
    ]


@register(Category)
class CategoryAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, DraggableMPTTAdmin, ModelAdmin):
    # noinspection PyClassVar
    model = Category
    list_display = (
        "indented_title",
        "parent",
        "is_active",
        "modified",
    )
    # noinspection PyUnresolvedReferences
    list_filter = (
        "is_active",
        "level",
        "created",
        "modified",
    )
    search_fields = (
        "uuid",
        "name",
    )
    inlines = [
        CategoryChildrenInline,
    ]
    autocomplete_fields = [
        "parent",
        "tags",
    ]
    readonly_fields = (
        "slug",
        "uuid",
        "modified",
        "created",
    )

    general_fields = [
        "is_active",
        "name",
        "description",
        "image",
        "markup_percent",
        "priority",
    ]
    relation_fields = [
        "parent",
        "tags",
    ]


@register(Brand)
class BrandAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Brand  # type: ignore [misc]
    list_display = (
        "name",
        "priority",
        "is_active",
    )
    list_filter = (
        "categories",
        "is_active",
    )
    search_fields = (
        "uuid",
        "name",
    )
    readonly_fields = (
        "uuid",
        "slug",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "name",
        "description",
        "priority",
    ]
    additional_fields = ["small_logo", "big_logo"]


@register(Product)
class ProductAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin, ImportExportModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Product  # type: ignore [misc]
    list_display = (
        "sku",
        "name",
        "is_active",
        "category",
        "brand",
        "price",
        "rating",
        "modified",
    )
    list_filter = (
        "is_active",
        "is_digital",
        "stocks__vendor",
        "tags__name",
        "created",
        "modified",
    )
    search_fields = (
        "name",
        "partnumber",
        "brand__name",
        "brand__slug",
        "category__name",
        "category__slug",
        "uuid",
        "slug",
        "sku",
    )
    readonly_fields = (
        "sku",
        "slug",
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = (
        "category",
        "brand",
        "tags",
    )
    inlines = [
        AttributeValueInline,
        ProductImageInline,
        StockInline,
    ]
    import_form_class = ImportForm
    export_form_class = ExportForm

    general_fields = [
        "is_active",
        "name",
        "partnumber",
        "is_digital",
    ]
    relation_fields = [
        "category",
        "brand",
        "tags",
    ]

    def get_queryset(self, request):
        return (
            super()
            .get_queryset(request)
            .select_related("category", "brand")
            .prefetch_related(
                "tags",
                "images",
                "stocks__vendor",
                "attributes__attribute",
            )
        )


@register(ProductTag)
class ProductTagAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = ProductTag  # type: ignore [misc]
    list_display = ("tag_name",)
    search_fields = ("tag_name",)
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "tag_name",
        "name",
    ]


@register(CategoryTag)
class CategoryTagAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = CategoryTag  # type: ignore [misc]
    list_display = (
        "name",
        "tag_name",
        "is_active",
    )
    search_fields = (
        "name",
        "tag_name",
        "is_active",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "tag_name",
        "name",
    ]


@register(Vendor)
class VendorAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Vendor  # type: ignore [misc]
    list_display = (
        "name",
        "markup_percent",
        "modified",
    )
    list_filter = (
        "markup_percent",
        "is_active",
    )
    search_fields = (
        "name",
        "uuid",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
        "last_processing_response",
    )
    form = VendorForm
    general_fields = [
        "is_active",
        "name",
        "markup_percent",
        "authentication",
    ]
    relation_fields = [
        "users",
    ]
    additional_fields = [
        "integration_path",
        "last_processing_response",
        "b2b_auth_token",
    ]


@register(Feedback)
class FeedbackAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Feedback  # type: ignore [misc]
    list_display = (
        "order_product",
        "rating",
        "comment",
        "modified",
    )
    list_filter = (
        "rating",
        "is_active",
    )
    search_fields = (
        "order_product__product__name",
        "comment",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "rating",
        "comment",
    ]
    relation_fields = [
        "order_product",
    ]


@register(Order)
class OrderAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Order  # type: ignore [misc]
    list_display = (
        "human_readable_id",
        "user",
        "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",
        "human_readable_id",
        "uuid",
        "modified",
        "created",
    )
    inlines = [
        OrderProductInline,
    ]
    form = OrderForm
    general_fields = [
        "is_active",
        "user",
        "status",
        "notifications",
        "attributes",
        "buy_time",
    ]
    relation_fields = [
        "promo_code",
        "billing_address",
        "shipping_address",
    ]


@register(OrderProduct)
class OrderProductAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = OrderProduct  # type: ignore [misc]
    list_display = (
        "order",
        "product",
        "quantity",
        "buy_price",
        "status",
        "modified",
    )
    list_filter = (
        "status",
        "modified",
    )
    search_fields = (
        "order__user__email",
        "product__name",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    form = OrderProductForm
    general_fields = [
        "is_active",
        "quantity",
        "buy_price",
        "status",
    ]
    relation_fields = [
        "order",
        "product",
    ]


@register(PromoCode)
class PromoCodeAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = PromoCode  # type: ignore [misc]
    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",
        "uuid",
        "user__email",
    )
    readonly_fields = (
        "used_on",
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = ("user",)
    general_fields = [
        "is_active",
        "code",
        "discount_amount",
        "discount_percent",
        "start_time",
        "end_time",
        "used_on",
    ]
    relation_fields = [
        "user",
    ]


@register(Promotion)
class PromotionAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Promotion  # type: ignore [misc]
    list_display = (
        "name",
        "discount_percent",
        "modified",
    )
    search_fields = ("name",)
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = ("products",)
    general_fields = [
        "is_active",
        "name",
        "discount_percent",
        "description",
    ]
    relation_fields = [
        "products",
    ]


@register(Stock)
class StockAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Stock  # type: ignore [misc]
    form = StockForm
    list_display = (
        "product",
        "vendor",
        "sku",
        "quantity",
        "price",
        "modified",
    )
    list_filter = (
        "vendor",
        "quantity",
    )
    search_fields = (
        "product__name",
        "vendor__name",
        "sku",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = (
        "product",
        "vendor",
    )
    general_fields = [
        "is_active",
        "sku",
        "quantity",
        "price",
        "purchase_price",
        "digital_asset",
    ]
    additional_fields = [
        "system_attributes",
    ]
    relation_fields = [
        "product",
        "vendor",
    ]


@register(Wishlist)
class WishlistAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = Wishlist  # type: ignore [misc]
    list_display = (
        "user",
        "modified",
    )
    search_fields = (
        "user__email",
        "uuid",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    general_fields = [
        "is_active",
        "user",
    ]
    relation_fields = [
        "products",
    ]


@register(ProductImage)
class ProductImageAdmin(DjangoQLSearchMixin, FieldsetsMixin, ActivationActionsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = ProductImage  # type: ignore [misc]
    list_display = (
        "alt",
        "product",
        "priority",
        "modified",
    )
    list_filter = (
        "priority",
        "modified",
        "created",
    )
    search_fields = (
        "alt",
        "product__name",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    autocomplete_fields = ("product",)
    general_fields = [
        "is_active",
        "alt",
        "priority",
        "image",
    ]
    relation_fields = [
        "product",
    ]


@register(Address)
class AddressAdmin(DjangoQLSearchMixin, FieldsetsMixin, GISModelAdmin):  # type: ignore [misc]
    # noinspection PyClassVar
    model = Address  # type: ignore [misc]
    list_display = (
        "street",
        "city",
        "region",
        "country",
        "user",
    )
    list_filter = (
        "country",
        "region",
    )
    search_fields = (
        "street",
        "city",
        "postal_code",
        "user__email",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    gis_widget_kwargs = {
        "attrs": {
            "default_lon": 37.61556,
            "default_lat": 55.75222,
            "default_zoom": 6,
        }
    }
    general_fields = [
        "is_active",
        "address_line",
        "street",
        "district",
        "city",
        "region",
        "postal_code",
        "country",
        "raw_data",
    ]
    relation_fields = [
        "user",
        "api_response",
    ]


@register(CustomerRelationshipManagementProvider)
class CustomerRelationshipManagementProviderAdmin(DjangoQLSearchMixin, FieldsetsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = CustomerRelationshipManagementProvider  # type: ignore [misc]
    list_display = (
        "name",
        "default",
    )
    search_fields = (
        "name",
        "uuid",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
    )
    form = CRMForm
    general_fields = [
        "is_active",
        "name",
        "default",
        "integration_url",
        "integration_location",
        "attributes",
        "authentication",
    ]


@register(OrderCrmLink)
class OrderCrmLinkAdmin(DjangoQLSearchMixin, FieldsetsMixin, ModelAdmin):  # type: ignore [misc, type-arg]
    # noinspection PyClassVar
    model = OrderCrmLink  # type: ignore [misc]
    list_display = (
        "crm_lead_id",
        "order",
    )
    search_fields = (
        "crm_lead_id",
        "order__human_readable_id",
        "order__uuid",
        "order__user__uuid",
        "order__user__email",
    )
    readonly_fields = (
        "uuid",
        "modified",
        "created",
        "crm_lead_id",
    )
    general_fields = [
        "is_active",
        "crm_lead_id",
    ]
    relation_fields = [
        "order",
        "crm",
    ]


# Constance configuration
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) -> str:
            return f"change_{self.model_name}"

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

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

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

        def get_ordered_objects(self) -> bool:
            return False

    _meta = Meta()


# noinspection PyTypeChecker
site.unregister([Config])
# noinspection PyTypeChecker
site.register([ConstanceConfig], BaseConstanceAdmin)  # type: ignore [list-item]
site.site_title = settings.PROJECT_NAME
site.site_header = "eVibes"
site.index_title = settings.PROJECT_NAME


site.unregister(PeriodicTask)
site.unregister(IntervalSchedule)
site.unregister(CrontabSchedule)
site.unregister(SolarSchedule)
site.unregister(ClockedSchedule)


class UnfoldTaskSelectWidget(UnfoldAdminSelectWidget, TaskSelectWidget):
    pass


class UnfoldPeriodicTaskForm(PeriodicTaskForm):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        self.fields["task"].widget = UnfoldAdminTextInputWidget()
        self.fields["regtask"].widget = UnfoldTaskSelectWidget()


@register(PeriodicTask)
class PeriodicTaskAdmin(BasePeriodicTaskAdmin, ModelAdmin):
    form = UnfoldPeriodicTaskForm


@register(IntervalSchedule)
class IntervalScheduleAdmin(ModelAdmin):
    pass


@register(CrontabSchedule)
class CrontabScheduleAdmin(BaseCrontabScheduleAdmin, ModelAdmin):
    pass


@register(SolarSchedule)
class SolarScheduleAdmin(ModelAdmin):
    pass


@register(ClockedSchedule)
class ClockedScheduleAdmin(BaseClockedScheduleAdmin, ModelAdmin):
    pass