<?php
declare(strict_types=1);

namespace addon\paycenter\controller\backend;

use addon\paycenter\library\Schema;
use addon\paycenter\service\Payment;
use think\facade\Db;
use think\facade\View;

/**
 * 支付流水后台（交易流水 / 主动查单 / 发起退款）
 */
class Trade extends PaycenterBackend
{
    /** 列表页 */
    public function index()
    {
        Schema::ensure();

        return View::fetch('trade/index');
    }

    /** 列表数据（layui table） */
    public function list()
    {
        Schema::ensure();

        $page    = max(1, (int) request()->param('page', 1));
        $limit   = min(100, max(1, (int) request()->param('limit', 15)));
        $tradeNo = trim((string) request()->param('trade_no', ''));
        $channel = trim((string) request()->param('channel', ''));
        $status  = request()->param('status', '');

        $db = Db::name('paycenter_trade');
        if ($tradeNo !== '') {
            $db->where('trade_no', 'like', '%' . $tradeNo . '%');
        }
        if ($channel !== '') {
            $db->where('channel', $channel);
        }
        if ($status !== '' && $status !== null) {
            $db->where('status', (int) $status);
        }

        $total = (int) $db->count();
        $rows  = $db->order('id', 'desc')->page($page, $limit)->select()->toArray();
        foreach ($rows as &$row) {
            $row['status_text'] = [0 => '待支付', 1 => '已支付', 2 => '已退款'][(int) $row['status']] ?? '未知';
            $row['create_time'] = !empty($row['create_at']) ? date('Y-m-d H:i:s', (int) $row['create_at']) : '';
            $row['pay_time']    = !empty($row['pay_at']) ? date('Y-m-d H:i:s', (int) $row['pay_at']) : '';
        }

        return json(['code' => 0, 'msg' => '', 'count' => $total, 'data' => $rows]);
    }

    /** 详情 */
    public function detail()
    {
        Schema::ensure();

        $tradeNo = trim((string) request()->param('trade_no', ''));
        $trade   = $tradeNo !== '' ? (array) Db::name('paycenter_trade')->where('trade_no', $tradeNo)->find() : [];
        if (!$trade) {
            return $this->result->error('流水不存在');
        }

        return $this->result->success('success', $trade);
    }

    /**
     * 主动查单：回调到不了（内网 / 防火墙 / 网关重试失败）时，用网关结果补发货。
     */
    public function query()
    {
        Schema::ensure();

        $tradeNo = trim((string) request()->param('trade_no', ''));
        if ($tradeNo === '') {
            return $this->result->error('缺少订单号');
        }
        $trade = (array) Db::name('paycenter_trade')->where('trade_no', $tradeNo)->find();
        if (!$trade) {
            return $this->result->error('流水不存在：' . $tradeNo);
        }
        $result = Payment::query((string) $trade['channel'], $tradeNo);
        if (!empty($result['paid'])) {
            // 与回调同一条链路：触发 PayPaid，让业务监听器发货（幂等）
            \addon\paycenter\library\TradeLog::markPaid([
                'trade_no'   => $tradeNo,
                'gateway_no' => (string) ($result['gateway_no'] ?? ''),
            ]);
            \think\facade\Event::trigger(Payment::EVENT_PAID, [
                'trade_no'   => $tradeNo,
                'channel'    => (string) $trade['channel'],
                'amount'     => (float) ($result['amount'] ?? 0),
                'gateway_no' => (string) ($result['gateway_no'] ?? ''),
                'biz'        => (string) ($trade['biz'] ?? ''),
                'biz_id'     => (int) ($trade['biz_id'] ?? 0),
                'attach'     => $trade['attach'] ?? '',
                'scene'      => (string) ($trade['scene'] ?? ''),
                'trade'      => $trade,
            ]);

            return $this->result->success('网关已确认付款，并已触发发货');
        }

        return $this->result->error('网关查询不到付款记录（可能尚未支付或查单失败）');
    }

    /** 发起退款（网关退款 + 流水置已退款） */
    public function refund()
    {
        Schema::ensure();

        $tradeNo = trim((string) request()->param('trade_no', ''));
        $amount  = (float) request()->param('amount', 0);
        if ($tradeNo === '') {
            return $this->result->error('缺少订单号');
        }
        $result = Payment::refund($tradeNo, $amount > 0 ? $amount : null);

        return $result['ok'] ? $this->result->success($result['message']) : $this->result->error($result['message']);
    }
}