from django.contrib import admin
from django.db.models import Count

from .models import Review, ReviewLike


class ReviewLikeInline(admin.TabularInline):
    model = ReviewLike
    extra = 0
    readonly_fields = ("user", "created_at")
    can_delete = False

    def has_add_permission(self, request, obj=None):
        return False


@admin.register(Review)
class ReviewAdmin(admin.ModelAdmin):
    list_display = ("user", "body_preview", "like_count", "is_approved", "created_at")
    list_filter = ("is_approved", "created_at")
    list_editable = ("is_approved",)
    search_fields = ("user__phone", "user__name", "body")
    readonly_fields = ("user", "created_at", "updated_at")
    inlines = [ReviewLikeInline]
    actions = ["approve_reviews", "reject_reviews"]

    def get_queryset(self, request):
        return super().get_queryset(request).annotate(_like_count=Count("likes"))

    @admin.display(description="متن نظر")
    def body_preview(self, obj: Review) -> str:
        return obj.body if len(obj.body) <= 60 else f"{obj.body[:60]}…"

    @admin.display(description="تعداد لایک", ordering="_like_count")
    def like_count(self, obj: Review) -> int:
        return obj._like_count

    @admin.action(description="تاییدِ نظرهای انتخاب‌شده")
    def approve_reviews(self, request, queryset):
        updated = queryset.update(is_approved=True)
        self.message_user(request, f"{updated} نظر تایید شد.")

    @admin.action(description="رد کردنِ نظرهای انتخاب‌شده")
    def reject_reviews(self, request, queryset):
        updated = queryset.update(is_approved=False)
        self.message_user(request, f"{updated} نظر رد شد.")