<?php

namespace app\common\service;

use app\common\validate\PurchaseOrdersValidate;
use app\common\traits\crud\CrudServiceTrait;
use app\common\model\PurchaseOrders;
use app\common\logic\PurchaseOrdersLogic;
use app\common\model\PurchaseOrderItems;
use app\common\model\User;
use support\Db;
use support\Request;

class PurchaseOrdersService
{

    use CrudServiceTrait;

    /**
     * 指定当前要操作的模型
     */
    protected string $modelClass = PurchaseOrders::class;

    /**
     * 验证器
     */
    protected $validator = PurchaseOrdersValidate::class;

    /**
     * 获取验证器
     */
    public function getValidator()
    {
        return  new $this->validator;
    }


    public function getLogic()
    {
        return new PurchaseOrdersLogic();
    }

    /**
     * 获取前置预处理数据
     *
     * @param array $data  原始返回值
     * @return array       处理后的返回值
     */
    public function preQueryData(array $data)
    {
        $result = match ($data['scene']) {
            'pi_no' => $this->getLogic()->getPiList(),
            'order_no' => $this->getLogic()->getOrderNoListByPiNo($data['pi_no']),
            'order_items' => $this->getLogic()->getOrderItemsListByOrderNo($data['order_id']),
            default => $data,
        };
        return $this->postProcess('PreData', $result->toArray());
    }

    public function afterServicePreData(array $data)
    {
        foreach ($data as $key => &$item) {
            if (isset($item['biz_date'])) {
                $item['biz_date'] = date('Y-m-d', $item['biz_date']);
            }
        }
        unset($item);
        return $data;
    }

    public function beforeServiceStore(array $data, Request $request)
    {
        $data['po_no'] = generateStockNo('CG');
        $data['buyer_id'] = $request->user->uid;
        $data['buyer_name'] = User::where('id', $request->user->uid)->value('name');
        return $data;
    }

    public function serviceStore(Request $request, array $data = [], string $scene = 'store')
    {
        // 使用事务确保数据一致性
        return Db::transaction(function () use ($request, $data, $scene) {
            $data = $this->preProcess(ucfirst($scene), $data, $request);
            $dl   = $this->getDataLimitFromRequest($request);
            // 创建采购单
            $created = $this->logicCreate($data, $dl);
            if (isset($data['stock_order'])) {
                foreach ($data['stock_order'] as $order) {
                    foreach ($order['stock_items'] as $item) {
                        // 创建采购单明细
                        PurchaseOrderItems::create([
                            'purchase_order_id' => $created->id,
                            'stock_id' => $order['stock_orders_id'],
                            'stock_items_id' => $item['stock_order_items_id'],
                            'stock_items_uqid' => $item['unique_id'],
                        ]);
                    }
                }
            }
            return $this->postProcess(ucfirst($scene), $created);
        });
    }

    /**
     * 更新采购单
     *
     * @param Request $request
     * @param array $data
     * @return mixed
     */
    public function serviceUpdate(Request $request, array $data = [], string $scene = 'update')
    {
        // 使用事务确保数据一致性
        return Db::transaction(function () use ($request, $data, $scene) {
            $data = $this->preProcess(ucfirst($scene), $data, $request);
            
            // 构建查询条件
            $config = $this->buildQueryConfig($request, $scene);
            
            // 更新主表信息
            $updated = $this->logicUpdateBy($config, $data);
            
            // 获取更新后的数据
            $order = $this->logicShow($config);
            
            // 更新采购单明细
            if (isset($data['stock_order'])) {
                // 先删除原有的明细
                PurchaseOrderItems::where('purchase_order_id', $order->id)->delete();
                
                // 重新创建明细
                foreach ($data['stock_order'] as $orderData) {
                    foreach ($orderData['stock_items'] as $item) {
                        PurchaseOrderItems::create([
                            'purchase_order_id' => $order->id,
                            'stock_id' => $orderData['stock_orders_id'],
                            'stock_items_id' => $item['stock_order_items_id'],
                            'stock_items_uqid' => $item['unique_id'],
                        ]);
                    }
                }
            }
            
            return $this->postProcess(ucfirst($scene), $order);
        });
    }

    /**
     * 构建查询配置
     *
     * @param Request $request
     * @param string $scene
     * @return array
     */
    protected function buildQueryConfig(Request $request, string $scene = 'index'): array
    {
        $p = $request->all();
        
        $config = [];
        $config['model'] = $this->modelClass;
        
        switch ($scene) {
            // case 'index':
            //     // $config['with']['buyer'] = ['name', 'avatar']; 
            //     break;
            case 'update':
                $config['where']['id'] = $p['id'] ?? 0;
                break;
            case 'show':
                $config['where']['id'] = $p['id'];
                $config['with'] = [
                    'items', 'items.stockOrder', 'items.stockOrderItems'
                ];
                break;
        }
        
        return $config;
    }

    /**
     * 删除采购订单
     *
     * @param Request $request
     * @return mixed
     */
    public function serviceDestroy(Request $request)
    {
        // 使用事务确保数据一致性
        return Db::transaction(function () use ($request) {
            // 构建查询条件
            $config = $this->buildQueryConfig($request, 'update');
            
            // 删除采购单明细
            $order = $this->logicShow($config);
            if ($order && $order->items) {
                PurchaseOrderItems::where('purchase_order_id', $order->id)->delete();
            }
            
            // 删除采购单主表
            $deleted = $this->logicDestroy($config);
            
            return $this->postProcess('Destroy', $deleted);
        });
    }


//     protected function afterServiceShow($item)
//     {
        
//         $item['items'] = $item->items->map(function ($item) {
//             $item['stock_order'] = $item->stockOrderItems;
//             return $item;
//         });
// var_dump($item->toArray());
//         return $item;

//     }
}