<?php

namespace Database\Seeders;

use App\Business;
use App\Category;
use App\User;
use Illuminate\Database\Seeder;
use Illuminate\Support\Str;

class GlobalProductTaxonomySeeder extends Seeder
{
    /**
     * دسته‌بندی و زیردسته‌بندی جامع محصولات جهان.
     */
    public function run(): void
    {
        $taxonomy = require database_path('seeders/data/global_product_taxonomy.php');
        $now = now();

        Business::query()->pluck('id')->each(function (int $businessId) use ($taxonomy, $now) {
            $createdBy = User::where('business_id', $businessId)->value('id') ?? 1;

            foreach ($taxonomy as $parentName => $parentData) {
                $parent = $this->firstOrCreateCategory(
                    $parentName,
                    0,
                    $parentData['code'] ?? null,
                    $businessId,
                    $createdBy,
                    $now
                );

                foreach ($parentData['children'] as $childName => $childCode) {
                    $this->firstOrCreateCategory(
                        $childName,
                        $parent->id,
                        $childCode,
                        $businessId,
                        $createdBy,
                        $now
                    );
                }
            }
        });
    }

    private function firstOrCreateCategory(
        string $name,
        int $parentId,
        ?string $shortCode,
        int $businessId,
        int $createdBy,
        $timestamp
    ): Category {
        $existing = Category::where('business_id', $businessId)
            ->where('category_type', 'product')
            ->where('name', $name)
            ->first();

        if ($existing) {
            if ($shortCode && empty($existing->short_code)) {
                $existing->update(['short_code' => $shortCode]);
            }

            return $existing;
        }

        return Category::create([
            'name' => $name,
            'short_code' => $shortCode,
            'slug' => $shortCode ? Str::slug($shortCode) : null,
            'business_id' => $businessId,
            'parent_id' => $parentId,
            'created_by' => $createdBy,
            'category_type' => 'product',
            'created_at' => $timestamp,
            'updated_at' => $timestamp,
        ]);
    }
}