<?php

namespace App\Http\Controllers\Mini;

use App\Exceptions\RepositoryException;
use App\Models\PaymentModel;
use App\Services\OnlinePaymentService;
use App\Services\WangpuPayService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\Log;
use Modules\AnnoRoute\Attribute\GetRoute;
use Modules\AnnoRoute\Attribute\PostRoute;
use Modules\AnnoRoute\Attribute\RequestAttribute;
use Throwable;

/**
 * 小程序在线支付（旺铺网关 JSAPI）
 *
 * 链路：POST /mini/payment/online 下单（返回调起支付参数）
 *   → 小程序 wx.requestPayment 完成支付
 *   → 网关 POST /mini/payment/notify 后台通知（验签 + 幂等结账）
 *   → 小程序 GET /mini/payment/online/{paymentNo}/query 主动同步支付结果（回调兜底）
 */
#[RequestAttribute('/mini', 'mini', authGuard: 'users')]
class OnlinePaymentController extends BaseMiniController
{
    public function __construct(
        protected OnlinePaymentService $onlinePayment,
        protected WangpuPayService $wangpu,
    ) {}

    /**
     * 发起在线支付：合并选择本店未支付账单 → 旺铺下单 → 返回调起支付参数
     * @throws Throwable
     */
    #[PostRoute('/payment/online', authorize: true)]
    public function create(Request $request): JsonResponse
    {
        $data = $request->validate([
            'bill_ids' => 'required|array|min:1',
            'bill_ids.*' => 'integer|distinct',
            'code' => 'required|string|max:64',
            'remark' => 'nullable|string|max:255',
        ], [
            'bill_ids.required' => '请选择要付款的账单',
            'bill_ids.min' => '请选择要付款的账单',
            'code.required' => '微信登录凭证缺失，请重新进入小程序',
            'remark.max' => '备注超过最大长度',
        ]);

        $store = $this->currentStore($request);

        [$payment, $payParams] = $this->onlinePayment->create(
            $store,
            array_map('intval', $data['bill_ids']),
            (string) $data['code'],
            (string) ($data['remark'] ?? ''),
        );

        return $this->success([
            'id' => $payment->id,
            'payment_no' => $payment->payment_no,
            'amount' => $payment->amount,
            'pay_params' => $payParams,
        ], '下单成功，请调起支付');
    }

    /**
     * 查询支付结果：网关回调可能延迟/丢失，小程序完成支付后主动调用同步结账
     * @throws Throwable
     */
    #[GetRoute('/payment/online/{paymentNo}/query', authorize: true)]
    public function query(string $paymentNo, Request $request): JsonResponse
    {
        $store = $this->currentStore($request);

        $payment = PaymentModel::query()
            ->where('store_id', $store->id)
            ->where('payment_no', $paymentNo)
            ->where('pay_type', PaymentModel::TYPE_ONLINE)
            ->first();
        if ($payment === null) {
            throw new RepositoryException('支付记录不存在');
        }

        $result = $this->onlinePayment->queryAndSettle($payment);
        $payment = $result['payment'];

        return $this->success([
            'payment_no' => $payment->payment_no,
            'status' => $payment->status,
            'status_name' => PaymentModel::ONLINE_STATUS_NAMES[$payment->status] ?? '待支付',
            'paid_at' => $payment->paid_at,
            'trade_no' => $payment->trade_no,
        ], $payment->status === PaymentModel::STATUS_APPROVED ? '支付成功' : '支付结果确认中');
    }

    /**
     * 旺铺支付结果后台通知（公开路由，解密信封后幂等结账）
     *
     * 通知报文与网关应答同为加密信封（data + signature，商户私钥可解），
     * 解密成功即视为合法通知；应答 {"code":"00"} 视为通知成功，否则网关按 2^n 分钟重试 7 次；
     * 重复通知必须幂等（settle 内部行锁 + 状态判断）。
     */
    #[PostRoute('/payment/notify', authorize: false)]
    public function notify(Request $request): JsonResponse
    {
        try {
            $params = $this->wangpu->decryptNotify($request->all());
        } catch (Throwable $e) {
            Log::warning('旺铺支付通知解密失败', ['error' => $e->getMessage()]);
            return $this->notifyAck('01', '报文解密失败');
        }

        try {
            $this->onlinePayment->settleByNotify($params);
        } catch (Throwable $e) {
            Log::error('旺铺支付通知处理失败', ['params' => $params, 'error' => $e->getMessage()]);
            return $this->notifyAck('01', $e->getMessage());
        }

        return $this->notifyAck(WangpuPayService::NOTIFY_ACK_OK, '成功');
    }

    /**
     * 通知应答报文（网关约定格式，timestamp：yyyyMMddHHmmssSSS）
     */
    protected function notifyAck(string $code, string $msg): JsonResponse
    {
        return response()->json([
            'code' => $code,
            'msg' => mb_substr($msg, 0, 100),
            'timestamp' => now()->format('YmdHisv'),
        ]);
    }
}