<?php

declare(strict_types=1);

namespace Modules\RestaurantDelivery\Traits;

use Illuminate\Database\Eloquent\Builder;
use Modules\Authentication\Models\Restaurant;

trait HasTenant
{
    /**
     * Boot the trait and add global scope for restaurant_id
     */
    public static function bootHasRestaurant(): void
    {
        // Global scope: filter by restaurant_id automatically
        static::addGlobalScope('restaurant', function (Builder $builder) {
            if (! config('restaurant-delivery.multi_restaurant.enabled')) {
                return;
            }

            $restaurantId = static::getCurrentRestaurantId();
            if ($restaurantId) {
                $builder->where('restaurant_id', $restaurantId);
            }
        });

        // Auto-fill restaurant_id on creating
        static::creating(function ($model) {
            if (! config('restaurant-delivery.multi_restaurant.enabled')) {
                return;
            }

            $column = config('restaurant-delivery.multi_restaurant.restaurant_column', 'restaurant_id');

            if (empty($model->{$column})) {
                $model->{$column} = static::getCurrentRestaurantId();
            }
        });
    }

    /**
     * Get the current restaurant ID from request, auth, or session
     */
    public static function getCurrentRestaurantId(): ?int
    {
        // Option 2: From authenticated user
        if (auth()->check() && method_exists(auth()->user(), 'getRestaurantId')) {
            return auth()->user()->getRestaurantId();
        }

        // Option 3: From session
        if (session()->has('restaurant_id')) {
            return session('restaurant_id');
        }

        return null;
    }

    /**
     * Remove the global restaurant scope
     */
    public function scopeWithoutRestaurant(Builder $query): Builder
    {
        return $query->withoutGlobalScope('restaurant');
    }

    /**
     * Query explicitly for a specific restaurant
     */
    public function scopeForRestaurant(Builder $query, int $restaurantId): Builder
    {
        return $query->withoutGlobalScope('restaurant')
            ->where(config('restaurant-delivery.multi_restaurant.restaurant_column', 'restaurant_id'), $restaurantId);
    }

    /**
     * Relationship to Restaurant model
     */
    public function restaurant()
    {
        $restaurantModel = config('restaurant-delivery.multi_restaurant.restaurant_model', Restaurant::class);

        return $this->belongsTo($restaurantModel, 'restaurant_id');
    }
}