<?php
namespace common\models\forms;

use common\models\Order;

class ExcelOrderForm extends \common\components\ActiveRecord
{
    /**
     * 导入excel数据
     */
    public function run($file)
    {
        $fileRows = count(file($file, FILE_SKIP_EMPTY_LINES));
        if ($fileRows > 500) {
            return '文件行数最多500';
        }

        $orderList = [];
        if (false !== ($handle = fopen($file, 'r'))) {
            while (false !== ($data = fgetcsv($handle, (filesize($file) + 1)))) {
                // 订单号和运单号都不能为空
                $orderSn = $data[0] ?? '';
                $orderTraceNo = $data[1] ?? '';

                if (!$orderSn) {
                    fclose($handle);
                    return '订单号不能为空';
                }
                if (!$orderTraceNo) {
                    fclose($handle);
                    return '运单号不能为空';
                }
                if ((strlen($orderTraceNo) < 5) || (strlen($orderTraceNo) > 20)) {
                    fclose($handle);
                    return '运单号长度错误';
                }

                $orderList[$orderSn] = $orderTraceNo;
            }
        } else {
            return '文件打开错误';
        }

        fclose($handle);

        if (!$orderList) {
            return '订单内容为空';
        }

        $dayLimit = 100;
        $transaction = \Yii::$app->db->beginTransaction();
        try {
            foreach ($orderList as $orderSn => $trackNo) {
                // 查询订单
                $order = Order::findOne(['SN' => $orderSn]);
                if (!$order->SN) {
                    return "订单【{$orderSn}】无效";
                }
                if ($order->STATUS !== \Yii::$app->params['orderStatus']['paid']['value']) {
                    return "订单【{$orderSn}】支付状态错误";
                }
                if ($order->CREATED_AT < strtotime( "-{$dayLimit} days")) {
                    return "订单【{$orderSn}】创建已超过{$dayLimit}天";
                }

                try {
                    // 更新运单号
                    $order->ORDER_TRACK_NO = $trackNo;
                    $order->save(false);
                } catch (\Exception $e) {
                    $transaction->rollBack();
                    return "订单【{$orderSn}】更新运单号错误. " . $e->getMessage();
                }
            }

            $transaction->commit();
        } catch (\Exception $e) {
            $transaction->rollBack();
            return "订单更新运单号错误. Exception " . $e->getMessage();
        }

        return true;
    }
}