<?php

namespace app\admin\command;

use addons\shopro\model\Order;
use think\Db;
use think\Log;
use think\console\Command;
use think\console\Input;
use think\console\input\Option;
use think\console\Output;

/**
 * 支付掉单补偿：回调丢失/失败导致“已付款仍显示未付款”时，
 * 主动向微信/支付宝查询网关侧状态，确认已付款且金额一致后走与回调相同的 paymentProcess 完成订单。
 *
 * 建议 cron 每 5 分钟执行：
 *   php think shopro:pay-reconcile
 */
class ShoproPayReconcile extends Command
{
    protected function configure()
    {
        $this->setName('shopro:pay-reconcile')
            ->addOption('dry-run', null, Option::VALUE_NONE, 'only report, do not complete orders')
            ->addOption('limit', null, Option::VALUE_REQUIRED, 'max orders to check per run', 50)
            ->addOption('min-age', null, Option::VALUE_REQUIRED, 'only check orders created at least N minutes ago', 15)
            ->addOption('max-age', null, Option::VALUE_REQUIRED, 'only check orders created within N hours', 72)
            ->setDescription('Reconcile unpaid shopro orders against wechat/alipay gateway status');
    }

    protected function execute(Input $input, Output $output)
    {
        $dryRun = (bool)$input->getOption('dry-run');
        $limit = max(1, min(500, (int)$input->getOption('limit')));
        $minAge = max(1, (int)$input->getOption('min-age'));
        $maxAge = max(1, (int)$input->getOption('max-age'));

        $now = time();
        $candidates = Db::name('shopro_order')
            ->where('status', 0)
            ->where('pay_type', 'in', ['wechat', 'alipay', 'group'])
            ->where('createtime', '<=', $now - $minAge * 60)
            ->where('createtime', '>=', $now - $maxAge * 3600)
            ->order('id', 'asc')
            ->limit($limit)
            ->select();

        $checked = 0;
        $completed = 0;
        foreach ($candidates as $row) {
            $checked++;
            try {
                $done = $this->reconcileOne($row, $dryRun, $output);
                if ($done) {
                    $completed++;
                }
            } catch (\Exception $e) {
                $msg = "pay-reconcile order {$row['order_sn']} failed: " . $e->getMessage();
                Log::write($msg, 'error');
                $output->error($msg);
            }
        }

        $output->info(($dryRun ? '[dry-run] ' : '') . "checked {$checked}, completed {$completed}.");
        return 0;
    }

    /**
     * @param array $row
     * @return bool 是否完成（或 dry-run 下是否“可完成”）
     */
    private function reconcileOne($row, $dryRun, $output)
    {
        $orderSn = $row['order_sn'];
        $payType = $row['pay_type'];
        $platform = $row['platform'];

        // group（组合支付）走微信网关查询
        $gateway = $payType === 'group' ? 'wechat' : $payType;

        if ($gateway === 'wechat'
            && !in_array($platform, ['wxMiniProgram', 'wxOfficialAccount', 'H5', 'App'], true)
        ) {
            $output->comment("skip {$orderSn}: unsupported platform {$platform}");
            return false;
        }

        $pay = new \addons\shopro\library\PayService($gateway, $platform);
        $data = $pay->query($orderSn);

        $paidInfo = $this->parseGatewayResult($gateway, $data);
        if (!$paidInfo) {
            $output->comment("skip {$orderSn}: gateway reports unpaid/unknown");
            return false;
        }

        // 金额必须与本地应付一致，否则只告警、不自动完成
        if (bccomp((string)$paidInfo['pay_fee'], (string)$row['pay_fee'], 2) !== 0) {
            $msg = "pay-reconcile amount mismatch {$orderSn}: gateway {$paidInfo['pay_fee']} vs local {$row['pay_fee']}";
            Log::write($msg, 'error');
            $output->error($msg . ', manual review required');
            return false;
        }

        if ($dryRun) {
            $output->info("would complete {$orderSn} ({$paidInfo['pay_fee']})");
            return true;
        }

        // 与 Pay::notifyx 回调相同的完成路径：事务内加排他锁复查 + paymentProcess
        $isCompleted = false;
        Db::transaction(function () use ($orderSn, $paidInfo, $gateway, &$isCompleted) {
            $order = Order::nopay()->where('order_sn', $orderSn)->lock(true)->find();
            if (!$order) {
                return;
            }

            $notify = [
                'order_sn'       => $orderSn,
                'transaction_id' => $paidInfo['transaction_id'],
                'notify_time'    => $paidInfo['notify_time'],
                'buyer_email'    => $paidInfo['buyer'],
                'payment_json'   => json_encode($paidInfo['raw']),
                'pay_fee'        => $paidInfo['pay_fee'],
                'pay_type'       => $order->pay_type == 'group' ? 'group' : $gateway,
            ];
            $order->paymentProcess($order, $notify);
            $isCompleted = true;
        });

        if (!$isCompleted) {
            // 已被回调或其他进程完成
            $output->info("skip {$orderSn}: already processed");
            return false;
        }

        $msg = "pay-reconcile completed {$orderSn} ({$paidInfo['pay_fee']})";
        Log::write($msg);
        $output->info($msg);
        return true;
    }

    /**
     * 解析网关查询结果，已确认付款返回统一结构，否则返回 null
     */
    private function parseGatewayResult($gateway, $data)
    {
        $arr = $data instanceof \think\Collection ? $data->all() : (array)$data;

        if ($gateway === 'wechat') {
            if (($arr['result_code'] ?? '') !== 'SUCCESS' || ($arr['trade_state'] ?? '') !== 'SUCCESS') {
                return null;
            }
            $notifyTime = isset($arr['time_end']) && ($ts = strtotime($arr['time_end']))
                ? date('Y-m-d H:i:s', $ts)
                : date('Y-m-d H:i:s');
            return [
                'transaction_id' => $arr['transaction_id'],
                'notify_time'    => $notifyTime,
                'buyer'          => $arr['openid'] ?? '',
                'pay_fee'        => bcdiv((string)$arr['total_fee'], '100', 2),
                'raw'            => $arr,
            ];
        }

        // alipay: alipay.trade.query
        if (($arr['code'] ?? '') !== '10000' || ($arr['trade_status'] ?? '') !== 'TRADE_SUCCESS') {
            return null;
        }
        $notifyTime = isset($arr['gmt_payment']) && ($ts = strtotime($arr['gmt_payment']))
            ? date('Y-m-d H:i:s', $ts)
            : date('Y-m-d H:i:s');
        return [
            'transaction_id' => $arr['trade_no'],
            'notify_time'    => $notifyTime,
            'buyer'          => $arr['buyer_logon_id'] ?? '',
            'pay_fee'        => (string)$arr['total_amount'],
            'raw'            => $arr,
        ];
    }
}