<?php
namespace app\onlinechip\controller\traits;

use think\Db;
use think\Log;
use think\Request;

/**
 * 彩虹易支付 Trait
 *
 * 业务定位：
 * - 作为 AlinPay（越南银行卡）之外的第二个充值通道，走易支付接 USDT/支付宝/微信 等
 * - 当前主要用于 USDT TRC20 收款
 *
 * 对接文件：
 * - extend/pay/Epay.php
 * - 支付站点：https://pay.g7g7.top
 *
 * 公开方法：
 * - epay_online_order()       发起充值，前端拿到 url 后跳转易支付
 * - epay_recharge_callback()  接收易支付异步回调，验签后结算
 *
 * 通道编号：
 * - pay_channel_id = 8（AlinPay 是 7，本通道顺延）
 * - 名称标识：epay
 */
trait epayPay
{
    /**
     * 易支付 - 发起充值下单（内嵌二维码模式）
     *
     * 直接跨库写 epay.pre_order + 计算 usdtpro 指纹金额，
     * 前端内嵌渲染二维码，无需跳转 pay.g7g7.top。
     *
     * 返回的 Data 结构：
     * {
     *   status:     1|0
     *   message:    文案
     *   url:        兼容字段（老前端仍可 window.open 跳转 /pay/leader/trade_no/）
     *   qrcode: {   新字段，前端内嵌渲染
     *     order_sn:     OG 侧订单号（用于轮询）
     *     usdt_address: TRC20 收款地址
     *     usdt_amount:  含指纹尾数的精确金额（如 10.0003）
     *     vnd_amount:   VND 原始金额
     *     rate:         汇率
     *     expires_at:   订单超时绝对时间戳
     *     timeout_sec:  总超时秒数
     *   }
     * }
     */
    public function epay_online_order()
    {
        // 兼容加密请求（Pcapi）和明文请求（Order）
        $post = Request::instance()->post();
        if (isset($post['encryptData'])) {
            $post = decrypt_data($post);
            if (!$post) {
                return json(['status' => 0, 'message' => '数据解密失败']);
            }
        }

        $user_id  = intval($post['user_id'] ?? 0);
        $money    = intval($post['price'] ?? 0);
        $client   = intval($post['client'] ?? 0);
        $username = trim($post['username'] ?? '');
        // 支付子类型：usdt / alipay / wxpay 等，默认 usdt
        $pay_type = trim($post['pay_type'] ?? 'usdt');

        $user = Db::name('user')->where([
            'id'        => $user_id,
            'status'    => 1,
            'is_delete' => 0,
            'agent'     => 0,
        ])->find();

        if (!$user || $user_id <= 0 || $money <= 0 || $client <= 0) {
            return json(['status' => 0, 'message' => '参数错误，请稍后再试']);
        }

        // 地区支线权限（与 AlinPay 一致的风控）
        $zdlIdArr  = explode(',', $user['agent_parent_id_path']);
        $area_list = config('area_list');

        if (!isset($area_list[$user['area_id']])) {
            return json(['status' => 0, 'message' => '所在地区暂不支持充值']);
        }

        $isAllow = false;
        foreach ($area_list[$user['area_id']]['limit_agent'] as $allowAgentId) {
            if (in_array($allowAgentId, $zdlIdArr)) {
                $isAllow = true;
            }
        }
        if (!$isAllow) {
            return json(['status' => 0, 'message' => '该账号暂不支持在线充值']);
        }

        // 总代理余额校验
        $zdlId = $zdlIdArr[0];
        $zdl   = Db::name('user')->where([
            'id'        => $zdlId,
            'status'    => 1,
            'is_delete' => 0,
            'agent'     => 1,
        ])->find();

        if (!$zdl) {
            return json(['status' => 0, 'message' => '所属代理账号异常，暂不能充值']);
        }
        if ($zdl['money'] < $money) {
            return json(['status' => 0, 'message' => '所属代理余额不足，暂不能充值']);
        }

        $pay_list    = config('pay_list');
        $pay_orderid = 'P' . date('YmdHis') . rand(100000, 999999);  // P 前缀区分 AlinPay 的 E
        $notify_url  = $pay_list['epay']['notify_url']  ?? '';
        $return_url  = $pay_list['epay']['callback_url'] ?? '';
        $goods_name  = $pay_list['epay']['goods_name']  ?? '账户充值';
        $epay_api    = $pay_list['epay']['api_url']     ?? 'https://pay.g7g7.top';
        $merchant_id = intval($pay_list['epay']['pid']   ?? 0);

        try {
            $epay = new \pay\Epay();

            // 兼容用：老版 pay/leader 页跳转 URL
            $payUrl = $epay->buildPayUrl(
                $pay_orderid,
                $pay_type,
                sprintf('%.2f', $money),
                $goods_name,
                $notify_url,
                $return_url,
                'uid:' . $user_id
            );

            if (!$payUrl) {
                addLogToFile('epay 下单构造 URL 失败：order=' . $pay_orderid, 'epay_error', 'epay');
                $data = encrypt_data(['status' => 0, 'message' => '支付地址生成失败，请稍后再试']);
                return json(['Success' => 1, 'Data' => $data]);
            }

            // 写 OG 侧订单
            $order_id = Db::name('order_record')->insertGetId([
                'pay_channel_id'   => 8,
                'pay_channel_name' => 'epay',
                'user_id'          => $user_id,
                'order_sn'         => $pay_orderid,
                'appid'            => strval($epay->getConfigInfo()['pid'] ?? ''),
                'api_key'          => '',
                'money'            => $money,
                'sign'             => '',
                'create_time'      => time(),
                'back_order_sn'    => '',
                'client'           => $client,
            ]);

            Db::name('order_log')->insert([
                'pay_channel_id'   => 8,
                'pay_channel_name' => 'epay',
                'money'            => $money,
                'create_time'      => time(),
                'remake'           => 'user_id:' . $user_id . ',用户名:' . $username . ',发起充值(' . $pay_type . ')：' . $money . ',时间:' . date('Y-m-d H:i:s'),
                'order_id'         => $order_id,
                'client'           => $client,
            ]);

            // 跨库写 epay.pre_order 并算 usdtpro 指纹金额
            $qrcode = null;
            if ($pay_type === 'usdt' && $merchant_id > 0) {
                $qrcode = $this->epay_create_usdt_pre_order(
                    $pay_orderid,
                    $money,
                    $goods_name,
                    $notify_url,
                    $return_url,
                    $merchant_id,
                    'uid:' . $user_id
                );
            }

            $data = encrypt_data([
                'status'  => 1,
                'message' => '发起支付成功',
                'url'     => $payUrl,       // 兼容老前端
                'qrcode'  => $qrcode,        // 新前端内嵌渲染用
            ]);
            return json(['Success' => 1, 'Data' => $data]);
        } catch (\Exception $e) {
            addLogToFile('epay 下单异常：' . $e->getMessage() . ' | file:' . $e->getFile() . ':' . $e->getLine(), 'epay_error', 'epay');
            $data = encrypt_data(['status' => 0, 'message' => '支付发起失败[' . $e->getMessage() . ']']);
            return json(['Success' => 1, 'Data' => $data]);
        }
    }

    /**
     * 跨库创建 epay.pre_order 并算 usdtpro 指纹金额
     *
     * 算法对齐 pay.g7g7.top/plugins/usdtpro/usdtpro_plugin.php::submit()：
     * - 指纹金额 = round(realmoney / rate, 4)
     * - 同通道+同金额+未超时订单存在则 +0.0001 递增错开
     */
    private function epay_create_usdt_pre_order($orderNo, $money, $goodsName, $notifyUrl, $returnUrl, $pid, $param = '')
    {
        // 查 usdtpro 通道（写死 plugin=usdtpro，status=1）
        $channel = Db::query("SELECT `id`, `config`, `rate` FROM `epay`.`pre_channel` WHERE `plugin`='usdtpro' AND `status`=1 LIMIT 1");
        if (empty($channel)) {
            addLogToFile('epay USDT 通道未启用：order=' . $orderNo, 'epay_error', 'epay');
            return null;
        }
        $channel = $channel[0];
        $channel_config = json_decode($channel['config'], true);
        if (!$channel_config || empty($channel_config['address'])) {
            addLogToFile('epay USDT 通道配置缺失 address：order=' . $orderNo, 'epay_error', 'epay');
            return null;
        }
        $address = $channel_config['address'];
        $rate    = floatval($channel_config['rate'] ?? 100000);
        $timeout = intval($channel_config['timeout'] ?? 600);

        // usdt type id（按插件约定 usdt -> pre_type.id=7，但直接查一下更稳）
        $typeRow = Db::query("SELECT `id` FROM `epay`.`pre_type` WHERE `name`='usdt' AND `status`=1 LIMIT 1");
        if (empty($typeRow)) {
            addLogToFile('epay pre_type usdt 未启用', 'epay_error', 'epay');
            return null;
        }
        $type_id = intval($typeRow[0]['id']);

        // 算指纹金额（碰撞检测）
        $unique_usdt = round($money / $rate, 4);
        $max_try = 100;
        while ($max_try-- > 0) {
            $same = Db::query(
                "SELECT 1 FROM `epay`.`pre_order` WHERE `channel`=:ch AND `usdtpro`=:amt AND UNIX_TIMESTAMP(`addtime`) + :win >= :now LIMIT 1",
                [
                    ':ch'  => $channel['id'],
                    ':amt' => $unique_usdt,
                    ':win' => $timeout * 3,
                    ':now' => time(),
                ]
            );
            if (empty($same)) {
                break;
            }
            $unique_usdt = round($unique_usdt + 0.0001, 4);
        }

        // epay 侧的 trade_no（YmdHis + 5 随机）
        $trade_no = date('YmdHis') . rand(11111, 99999);
        $realmoney = sprintf('%.2f', $money);
        $domain = parse_url($notifyUrl, PHP_URL_HOST) ?: '';

        Db::execute(
            "INSERT INTO `epay`.`pre_order`
                (`trade_no`, `out_trade_no`, `uid`, `type`, `channel`, `name`, `money`, `realmoney`, `getmoney`,
                 `notify_url`, `return_url`, `param`, `addtime`, `date`, `domain`, `ip`, `status`, `version`, `usdtpro`)
             VALUES
                (:trade_no, :out_trade_no, :uid, :type, :channel, :name, :money, :realmoney, :getmoney,
                 :notify_url, :return_url, :param, NOW(), CURDATE(), :domain, :ip, 0, 1, :usdtpro)",
            [
                ':trade_no'     => $trade_no,
                ':out_trade_no' => $orderNo,
                ':uid'          => $pid,
                ':type'         => $type_id,
                ':channel'      => $channel['id'],
                ':name'         => $goodsName,
                ':money'        => $realmoney,
                ':realmoney'    => $realmoney,
                ':getmoney'     => $realmoney,
                ':notify_url'   => $notifyUrl,
                ':return_url'   => $returnUrl,
                ':param'        => $param,
                ':domain'       => $domain,
                ':ip'           => Request::instance()->ip(),
                ':usdtpro'      => $unique_usdt,
            ]
        );

        $expires_at = time() + $timeout;
        addLogToFile('epay USDT 内嵌下单成功: order=' . $orderNo . ' trade_no=' . $trade_no . ' usdt=' . $unique_usdt, 'epay_request', 'epay');

        return [
            'order_sn'     => $orderNo,
            'trade_no'     => $trade_no,
            'usdt_address' => $address,
            'usdt_amount'  => sprintf('%.4f', $unique_usdt),
            'vnd_amount'   => $realmoney,
            'rate'         => (string) $rate,
            'expires_at'   => $expires_at,
            'timeout_sec'  => $timeout,
        ];
    }

    /**
     * 易支付 - 订单状态轮询
     *
     * 前端轮询该接口，判断是否到账或已超时。
     * 返回 Data 结构：
     *   { status: 0|1|2, message, money, paid_time }
     *     0=待支付, 1=已到账, 2=已超时
     */
    public function epay_order_status()
    {
        $post = Request::instance()->post();
        if (isset($post['encryptData'])) {
            $post = decrypt_data($post);
            if (!$post) {
                return json(['status' => 0, 'message' => '数据解密失败']);
            }
        }

        $order_sn = trim($post['order_sn'] ?? '');
        $user_id  = intval($post['user_id'] ?? 0);

        if ($order_sn === '' || $user_id <= 0) {
            $data = encrypt_data(['status' => 0, 'message' => '参数错误']);
            return json(['Success' => 1, 'Data' => $data]);
        }

        $order = Db::name('order_record')
            ->where([
                'order_sn'       => $order_sn,
                'user_id'        => $user_id,
                'pay_channel_id' => 8,
            ])
            ->find();

        if (!$order) {
            $data = encrypt_data(['status' => 0, 'message' => '订单不存在']);
            return json(['Success' => 1, 'Data' => $data]);
        }

        // status=3 代表已回调结算完成（见 epay_recharge_settle）
        if (intval($order['status']) == 3) {
            $data = encrypt_data([
                'status'    => 1,
                'message'   => '充值成功',
                'money'     => $order['money'],
                'paid_time' => $order['back_time'],
            ]);
            return json(['Success' => 1, 'Data' => $data]);
        }

        // 超时判定：从 epay 配置拿 timeout，兜底 600
        $pay_list = config('pay_list');
        $timeout  = intval($pay_list['epay']['timeout'] ?? 600);
        if (time() - intval($order['create_time']) > $timeout) {
            $data = encrypt_data([
                'status'  => 2,
                'message' => '订单超时',
                'money'   => $order['money'],
            ]);
            return json(['Success' => 1, 'Data' => $data]);
        }

        $data = encrypt_data([
            'status'  => 0,
            'message' => '等待支付',
            'money'   => $order['money'],
        ]);
        return json(['Success' => 1, 'Data' => $data]);
    }

    /**
     * 易支付 - 异步回调处理
     *
     * 易支付回调是 GET（pay.php 跳转后用 GET 带参数回 notify_url），
     * 但也可能 POST —— 都兼容
     */
    public function epay_recharge_callback()
    {
        $request = Request::instance();
        $data = $request->post();
        if (empty($data)) {
            $data = $request->get();
        }

        $json = json_encode($data, JSON_UNESCAPED_UNICODE);
        addLogToFile('epay 回调原始数据：' . $json, 'epay_callback', 'epay');

        if (!is_array($data) || empty($data['out_trade_no']) || empty($data['sign'])) {
            Log::record($data, 'epay_error_callback');
            exit('fail');
        }

        // 记录回调日志
        $logId = Db::name('pay_callback_log')->insertGetId([
            'pay_channel' => 'EPAY_RECHARGE',
            'type'        => 'recharge',
            'json'        => $json,
            'create_time' => date('Y-m-d H:i:s'),
        ]);

        try {
            $epay = new \pay\Epay();
            $result = $epay->verifyNotifyCallback($data, $logId);

            if (!$result['verified']) {
                exit('fail');
            }

            if ($result['success']) {
                $this->epay_recharge_settle($data);
                exit('success');
            } else {
                // 非 TRADE_SUCCESS —— 返 success 让对方不再重试
                addLogToFile('epay 回调非成功状态，ack 防重试：order=' . ($data['out_trade_no'] ?? ''), 'epay_callback', 'epay');
                exit('success');
            }
        } catch (\Exception $e) {
            addLogToFile('epay 回调处理异常：' . $e->getMessage(), 'epay_callback_error', 'epay');
            exit('fail');
        }
    }

    /**
     * 易支付结算（事务保护：加锁 → 扣代理 → 加用户 → 写日志）
     * 和 alin_recharge_settle 同构，只是 pay_channel 改成 epay
     */
    private function epay_recharge_settle($data)
    {
        $orderNo = $data['out_trade_no'];

        Db::startTrans();
        try {
            $order = Db::name('order_record')->where('order_sn', $orderNo)->lock(true)->find();
            if (!$order || $order['status'] == 3) {
                Db::rollback();
                return;
            }

            $user = Db::name('user')->where([
                'id'        => $order['user_id'],
                'status'    => 1,
                'is_delete' => 0,
                'agent'     => 0,
            ])->lock(true)->find();
            if (!$user) {
                Db::rollback();
                return;
            }

            $zdlIdArr = explode(',', $user['agent_parent_id_path']);
            $zdlId    = $zdlIdArr[0];

            $zdl = Db::name('user')->where([
                'id'        => $zdlId,
                'status'    => 1,
                'is_delete' => 0,
                'agent'     => 1,
            ])->lock(true)->find();

            if (!$zdl || $zdl['money'] < $order['money']) {
                Db::rollback();
                addLogToFile('epay 结算失败：代理余额不足 order=' . $orderNo, 'epay_callback_error', 'epay');
                return;
            }

            // 实际到账金额：易支付回调中的 money 字段（CNY）
            $actualMoney = isset($data['money']) ? floatval($data['money']) : $order['money'];

            // 1. 更新订单
            Db::name('order_record')->where('id', $order['id'])->update([
                'back_money'            => $actualMoney,
                'back_time'             => time(),
                'status'                => 3,
                'agent_parent_id'       => $user['agent_parent_id'],
                'agent_parent_username' => $user['agent_parent_username'],
                'zdl_id'                => $zdl['id'],
                'zdl_username'          => $zdl['username'],
                'zdl_money_before'      => $zdl['money'],
                'zdl_money_after'       => $zdl['money'] - $order['money'],
                'money_before'          => $user['money'],
                'money_after'           => $user['money'] + $order['money'],
            ]);

            // 2. 订单日志
            Db::name('order_log')->insert([
                'pay_channel_id'   => 8,
                'pay_channel_name' => 'epay',
                'money'            => $order['money'],
                'create_time'      => time(),
                'remake'           => '易支付回调成功 trade_no=' . ($data['trade_no'] ?? '') . ' type=' . ($data['type'] ?? ''),
                'order_id'         => $order['id'],
            ]);

            // 3. recharge 流水
            Db::name('recharge')->insert([
                'type'                 => 4,
                'amount'               => $order['money'],
                'mode'                 => 1,
                'agent_or_admin'       => 3,
                'controller_id'        => $zdl['id'],
                'controller_username'  => $zdl['username'],
                'controller_nickname'  => $zdl['nickname'],
                'controller_type'      => '易支付第三方充值，扣取总代理余分',
                'controller_old_money' => $zdl['money'],
                'controller_new_money' => $zdl['money'] - $order['money'],
                'user_id'              => $order['user_id'],
                'user_type'            => $user['agent'],
                'user_agent_level'     => 0,
                'username_for'         => $user['username'],
                'nickname_for'         => $user['nickname'],
                'user_parent_id'       => $user['agent_parent_id'],
                'create_time'          => time(),
                'old_money'            => $user['money'],
                'new_money'            => $user['money'] + $order['money'],
                'controller_system'    => 3,
                'remake'               => '易支付第三方充值成功(' . ($data['type'] ?? '') . ')',
            ]);

            // 4. 扣代理
            Db::name('user')->where('id', $zdl['id'])->update([
                'money'                     => $zdl['money'] - $order['money'],
                'last_recharge_out'         => $order['money'],
                'last_recharge_out_time'    => time(),
                'recharge_out_count'        => $zdl['recharge_out_count'] + 1,
                'recharge_out_total_amount' => $zdl['recharge_out_total_amount'] + $order['money'],
            ]);

            // 5. 加用户
            Db::name('user')->where('id', $order['user_id'])->update([
                'money'                 => $user['money'] + $order['money'],
                'last_recharge'         => $order['money'],
                'last_recharge_time'    => time(),
                'recharge_count'        => $user['recharge_count'] + 1,
                'recharge_total_amount' => $user['recharge_total_amount'] + $order['money'],
            ]);

            Db::commit();
            addLogToFile('epay 结算成功：order=' . $orderNo . ' money=' . $order['money'], 'epay_callback', 'epay');
        } catch (\Exception $e) {
            Db::rollback();
            addLogToFile('epay 结算异常：' . $e->getMessage(), 'epay_callback_error', 'epay');
        }
    }
}