from django.contrib import admin, messages
from django.contrib.admin.helpers import ACTION_CHECKBOX_NAME
from django.contrib.auth import get_user_model
from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
from django.contrib.auth.forms import SetPasswordForm
from django.db import transaction
from django.shortcuts import redirect
from django.template.response import TemplateResponse
from django.urls import reverse_lazy
from import_export import resources
from unfold.decorators import action as unfold_action

from core.admins.base import BaseAdmin, SoftDeleteListFilter

from apps.users.models import UserSocialAccount
from apps.users.services.forms import CustomUserChangeForm, CustomUserCreationForm

User = get_user_model()


class UserResource(resources.ModelResource):
    class Meta:
        model = User


class UserSocialAccountInline(admin.TabularInline):
    model = UserSocialAccount
    fk_name = "user"
    extra = 0
    autocomplete_fields = ("user",)
    fields = (
        "provider",
        "provider_user_id",
        "email",
        "email_verified",
        "avatar_url",
        "is_deleted",
        "created_at",
        "updated_at",
    )
    readonly_fields = (
        "provider",
        "provider_user_id",
        "email",
        "email_verified",
        "avatar_url",
        "is_deleted",
        "created_at",
        "updated_at",
    )
    show_change_link = True


@admin.register(User)
class CustomUserAdmin(BaseUserAdmin, BaseAdmin):
    model = User
    resource_class = UserResource
    form = CustomUserChangeForm
    add_form = CustomUserCreationForm
    list_display = (
        "full_name",
        "mobile",
        "is_verified",
        "is_staff",
        "created_at",
        "updated_at",
        "is_active",
        "is_deleted",
    )
    list_editable = ("mobile",)
    search_fields = (
        "first_name",
        "last_name",
        "mobile",
        "email",
    )
    list_filter = (
        SoftDeleteListFilter,
        "is_verified",
        "is_active",
        "is_staff",
        "is_superuser",
        "is_deleted",
        "created_at",
    )
    ordering = ("-created_at",)
    readonly_fields = (
        "id",
        "created_at",
        "updated_at",
        "deleted_at",
        "last_login",
        "date_joined",
    )
    date_hierarchy = "created_at"
    actions = (
        "hard_delete_selected",
        "restore_selected",
        "mark_verified",
        "mark_unverified",
        "activate_users",
        "deactivate_users",
    )

    fieldsets = (
        (None, {"fields": ("id", "mobile", "password")}),
        (
            "Personal Info",
            {
                "fields": (
                    "first_name",
                    "last_name",
                    "email",
                    "profile_picture",
                    "birth_date",
                    "description",
                )
            },
        ),
        (
            "Permissions",
            {
                "fields": (
                    "is_verified",
                    "is_active",
                    "is_staff",
                    "is_superuser",
                    "groups",
                    "user_permissions",
                )
            },
        ),
        ("Audit", {"fields": ("created_by", "updated_by")}),
        (
            "Important Dates",
            {
                "fields": (
                    "last_login",
                    "date_joined",
                    "created_at",
                    "updated_at",
                    "deleted_at",
                    "is_deleted",
                    "password_updated_at",
                )
            },
        ),
    )
    add_fieldsets = (
        (
            None,
            {
                "classes": ("wide",),
                "fields": (
                    "mobile",
                    "password1",
                    "password2",
                    "first_name",
                    "last_name",
                    "email",
                    "profile_picture",
                    "is_verified",
                    "is_active",
                ),
            },
        ),
    )
    filter_horizontal = ("groups", "user_permissions")
    inlines = (UserSocialAccountInline,)

    actions_row = [
        "reset_password_action",
    ]

    @unfold_action(description="Reset user password")
    def reset_password_action(self, request, object_id):
        user = User.objects.get(pk=object_id)
        form = SetPasswordForm(user=user, data=request.POST or None)

        if request.method == "POST" and form.is_valid():
            password = form.cleaned_data["new_password1"]
            user.set_password(password)
            user.save()
            messages.success(request, f"User '{user}' - password reset.")
            changelist_url = reverse_lazy(
                f"admin:{self.model._meta.app_label}_{self.model._meta.model_name}_changelist"
            )
            return redirect(changelist_url)

        context = {
            **self.admin_site.each_context(request),
            "title": "Reset User Password",
            "opts": self.model._meta,
            "form": form,
            "action_name": "reset_password",
            "action_checkbox_name": ACTION_CHECKBOX_NAME,
        }
        return TemplateResponse(request, "forms/admin_reset_password.html", context)

    @admin.action(description="Mark selected users as verified")
    def mark_verified(self, request, queryset):
        queryset.update(is_verified=True)

    @admin.action(description="Mark selected users as unverified")
    def mark_unverified(self, request, queryset):
        queryset.update(is_verified=False)

    @admin.action(description="Activate selected users")
    def activate_users(self, request, queryset):
        queryset.update(is_active=True)

    @admin.action(description="Deactivate selected users")
    def deactivate_users(self, request, queryset):
        queryset.update(is_active=False)


@admin.register(UserSocialAccount)
class UserSocialAccountAdmin(BaseAdmin):
    list_display = (
        "provider",
        "provider_user_id",
        "user",
        "email",
        "email_verified",
        "created_at",
        "is_deleted",
    )
    search_fields = (
        "provider_user_id",
        "email",
        "user__mobile",
        "user__first_name",
        "user__last_name",
    )
    list_filter = (
        SoftDeleteListFilter,
        "provider",
        "email_verified",
        "is_deleted",
        "created_at",
    )
    readonly_fields = (
        "id",
        "created_at",
        "updated_at",
        "deleted_at",
    )
    autocomplete_fields = ("user",)
    actions = (
        "unlink_selected",
        "hard_delete_selected",
        "restore_selected",
    )

    @admin.action(description="Unlink selected social accounts")
    def unlink_selected(self, request, queryset):
        count = queryset.count()
        with transaction.atomic():
            queryset.hard_delete()
        self.message_user(
            request,
            f"{count} social account link(s) permanently removed.",
            level=messages.SUCCESS,
        )