<?php
namespace App\Services;

use App\Models\Order;
use App\Models\Platform;
use App\Models\MatchLog;
use App\Models\UnmatchedLog;
use Illuminate\Support\Facades\DB;

class SkuMatchService
{
    public function matchOrderItems($orderId)
    {
        $order = Order::with('items')->findOrFail($orderId);
        $allMatched = true;

        DB::transaction(function () use ($order, &$allMatched) {
            foreach ($order->items as $item) {
                // 通过平台SKU编码查找平台商品
                $platformSku = Platform::where('sku_code', $item->platform_sku)->first();

                if ($platformSku) {
                    // 查找当前生效的绑定
                    $activeBinding = $platformSku->activeBinding;

                    if ($activeBinding) {
                        $item->erp_sku_id = $activeBinding->erp_sku_id;
                        $item->match_status = 1;
                        $item->save();

                        MatchLog::create([
                            'order_item_id' => $item->id,
                            'platform_sku' => $item->platform_sku,
                            'erp_sku_id' => $activeBinding->erp_sku_id,
                            'match_type' => 'auto'
                        ]);
                    } else {
                        $allMatched = false;
                        $item->match_status = 0;
                        $item->save();

                        UnmatchedLog::create([
                            'order_item_id' => $item->id,
                            'platform_sku' => $item->platform_sku,
                            'reason' => 'no_active_binding'
                        ]);
                    }
                } else {
                    $allMatched = false;
                    $item->match_status = 0;
                    $item->save();

                    UnmatchedLog::create([
                        'order_item_id' => $item->id,
                        'platform_sku' => $item->platform_sku,
                        'reason' => 'platform_sku_not_found'
                    ]);
                }
            }

            $order->match_status = $allMatched ? 1 : 0;
            $order->match_time = now();
            $order->save();
        });

        return [
            'order_id' => $orderId,
            'all_matched' => $allMatched,
            'matched_count' => $order->items()->where('match_status', 1)->count(),
            'total_count' => $order->items()->count()
        ];
    }
}