@@ -0,0 +1,357 @@
+<?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\exception\BusinessException;
+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['order_no'] = generateStockNo('CG');
+        $data['buyer_id'] = $request->user->uid;
+        $data['buyer_name'] = User::where('id', $request->user->uid)->value('name');
+        if ($data['is_draft'] == 0) {
+            $data['status'] = 1;
+        }
+        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);
+        });
+    }
+
+    /**
+     * 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['order']['id'] = 'desc';
+                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, 'show');
+            
+            // 软删除采购单明细
+            $order = $this->logicShow($config);
+            if ($order && $order->items) {
+                foreach ($order->items as $item) {
+                    $item->delete();
+                }
+            }
+            
+            // 软删除采购单主表
+            $res = $order->delete();
+            
+            return $this->postProcess('Destroy', $res);
+        });
+    }
+
+    /**
+     * 创建采购单成功后处理
+     */
+    protected function afterServiceStore($res)
+    {
+        if ($res->is_draft == 0) {
+            $this->startApproval($res, ['resubmitted'=>0]);
+        }
+        return $res;
+    }
+
+    public function startApproval($item)
+    {
+        $appro = new \app\common\utils\approval\service\ApprovalFlowService();
+        $appro->start('purchase_orders', 'purchase_orders', $item->id, ['resubmitted'=>0], $item->buyer_id);
+    }
+
+    public function beforeServiceUpdate(array $data, Request $request)
+    {
+        if ($data['is_draft'] == 0) {
+            $data['status'] = 1;
+        }
+        return $data;
+    }
+
+    /**
+     * 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
+            $udata = $data;
+            unset($udata['stock_order']);
+            unset($udata['is_resubmit']);
+            unset($udata['approval_desc']);
+            $this->logicUpdateBy($config, $udata);
+            
+            // 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), 
+                $order, 
+                [
+                    'is_resubmit'=>$data['is_resubmit'], 
+                    'approval_desc'=>$data['approval_desc']
+                ]
+            );
+        });
+    }
+
+    protected function afterServiceUpdate($res, $data)
+    {
+        if ($data['is_resubmit'] == 0 && $res->status == 1) {
+            $this->startApproval($res);
+        }
+        if ($data['is_resubmit'] == 1) {
+            $instance = \app\common\model\ApprovalInstances::where('biz_id', $res->id)->where('flow_type', 'purchase_orders')->first();
+            if ( $instance === null) {
+                throw new BusinessException('未找到审批实例');
+            }
+            // 审批服务
+            $appro = new \app\common\utils\approval\service\ApprovalFlowService();
+            // 重新提交
+            $appro->resubmit($instance->id, $instance->initiator_id, ['resubmitted'=>1], $data['approval_desc']);
+            // 添加到讨论
+            if (!empty($data['approval_desc'])) {
+                $appro->postDiscussion($instance->id, $instance->initiator_id, $data['approval_desc'], false, [], 'name');
+            }
+        }
+        return $res;
+    }
+
+
+    public function serviceResubmit(Request $request, array $data = [])
+    { 
+        $p = $request->all();
+        $config = [];
+        $config['model'] = $this->modelClass;
+        $config['where']['id'] = $p['id'];
+        $config['where']['buyer_id'] = $request->user->uid;
+        $info = $this->logicShow($config);
+        if ($info === null) {
+            throw new BusinessException('未找到采购单');
+        }
+        if ($info->status != 3) {
+            throw new BusinessException('该状态不能重新提交');
+        }
+        $instance = \app\common\model\ApprovalInstances::where('biz_id', $info->id)->where('flow_type', 'purchase_orders')->first();
+        if ( $instance === null) {
+            throw new BusinessException('未找到审批实例');
+        }
+        // 审批服务
+        $appro = new \app\common\utils\approval\service\ApprovalFlowService();
+        // 重新提交
+        $result = $appro->resubmit($instance->id, $instance->initiator_id, ['resubmitted'=>1], $data['remark']);
+        // 添加到讨论
+        if (!empty($data['remark'])) {
+            $appro->postDiscussion($instance->id, $instance->initiator_id, $data['remark'], false, [], 'name');
+        }
+        
+        $info->status = 1;
+        $info->save();
+        return $result;
+    }
+
+
+    public function updateStatus(array $data = [])
+    {
+        
+        $info = PurchaseOrders::where('id', $data['id'])->first();
+        if ($info === null) {
+            throw new BusinessException('未找到采购单');
+        }
+        $info->status = $data['status'];
+        return $info->save();
+    }
+
+
+    public function formatData($data)
+    {
+        $contractFile = $data['contract_file'] ? explode(',', $data['contract_file']) : [];
+        $contractFileUrl = [];
+        if (count($contractFile) > 0) {
+            foreach ($contractFile as $file) {
+                $contractFileUrl[] = (new \app\common\service\OssService)->generatePrivateUrl($file);
+            }
+        }
+        $result = [
+            'id' => $data['id'],
+            'order_no' => $data['order_no'],
+            'pi_no' => $data['pi_no'],
+            'buyer_id' => $data['buyer_id'],
+            'buyer_name' => $data['buyer_name'],
+            'contract_file' => $contractFile,
+            'contract_file_url' => $contractFileUrl,
+            'status' => $data['status'],
+            'remark' => $data['remark']
+        ];
+        $temps = [];
+        if (isset($data['items']) && count($data['items']) > 0) {
+            foreach ($data['items'] as $record) {
+                if (!in_array($record['stockOrder']['id'], array_keys($temps))) {
+                    $temps[$record['stockOrder']['id']] = [
+                        'id' => $record['stockOrder']['id'],
+                        'order_no' => $record['stockOrder']['order_no'],
+                        'salesperson_snapshot' => $record['stockOrder']['salesperson_snapshot'],
+                        'biz_date' => date('Y-m-d', $record['stockOrder']['biz_date'])
+                    ];
+                }
+                $temps[$record['stockOrder']['id']]['stock_order_items'][] =[
+                    'id' => $record['stockOrderItems']['id'],
+                    'model_snapshot' => $record['stockOrderItems']['model_snapshot'],
+                    'unique_id' => $record['stockOrderItems']['unique_id'],
+                ];
+            }
+        }
+        $result['stock_order'] = array_values($temps);
+        return $result;
+    }
+}