<?php

namespace App\Http\Controllers\Mini;

use App\Exceptions\RepositoryException;
use App\Models\BillModel;
use App\Models\PaymentModel;
use App\Services\BillNumberService;
use App\Services\WechatMpService;
use Illuminate\Http\JsonResponse;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use Modules\AnnoRoute\Attribute\GetRoute;
use Modules\AnnoRoute\Attribute\PostRoute;
use Modules\AnnoRoute\Attribute\RequestAttribute;
use Modules\SystemTool\Models\SysFileModel;
use Throwable;

/**
 * 小程序门店支付（选择本店账单合并付款，提交汇款凭证，后台审核通过后账单置已支付）
 */
#[RequestAttribute('/mini', 'mini', authGuard: 'users')]
class PaymentController extends BaseMiniController
{
    /** 支付配置：收款码图片与对公汇款信息（付款页展示） */
    #[GetRoute('/payment/config', authorize: true)]
    public function config(): JsonResponse
    {
        // 配置值支持图片URL或文件ID（文件ID解析为预览地址）
        $resolve = static function (mixed $value): string {
            $value = trim((string) $value);
            if ($value === '') {
                return '';
            }
            if (is_numeric($value)) {
                return (string) (SysFileModel::query()->find((int) $value)?->preview_url ?? '');
            }
            return $value;
        };

        // 支付方式开关（Checkbox 配置自动转数组；未配置时默认全部启用）
        $payMethods = site_config('pay.pay_methods');
        if (! is_array($payMethods)) {
            $payMethods = ['wechat_qrcode', 'alipay_qrcode', 'bank', 'online'];
        }

        return $this->success([
            'pay_methods' => array_values($payMethods),
            'wechat_qrcode' => $resolve(site_config('pay.wechat_qrcode', '')),
            'alipay_qrcode' => $resolve(site_config('pay.alipay_qrcode', '')),
            'bank_info' => (string) site_config('pay.bank_info', ''),
            // 公众号 AppID（H5 在微信内置浏览器拼网页授权链接使用，授权回调 code 传给 /mini/payment/online scene=mp）
            'mp_appid' => app(WechatMpService::class)->appid(),
        ]);
    }

    /** 支付记录列表：当前门店强制过滤，?status=&page=&pageSize= */
    #[GetRoute('/payment', authorize: true)]
    public function index(Request $request): JsonResponse
    {
        $store = $this->currentStore($request);

        $query = PaymentModel::query()
            ->where('store_id', $store->id)
            ->withCount('bills');
        if ($request->filled('status')) {
            $query->where('status', (int) $request->input('status'));
        }

        $data = $query->orderBy('id', 'desc')
            ->paginate((int) $request->input('pageSize', 10))
            ->toArray();

        return $this->success($data);
    }

    /**
     * 发起付款：合并选择本店未支付账单，提交支付方式与汇款凭证（后台审核）
     * @throws Throwable
     */
    #[PostRoute('/payment', authorize: true)]
    public function create(Request $request): JsonResponse
    {
        $data = $request->validate([
            'bill_ids' => 'required|array|min:1',
            'bill_ids.*' => 'integer|distinct',
            'pay_method' => 'required|integer|in:1,2,3',
            'voucher_ids' => 'required|array|min:1',
            'voucher_ids.*' => 'integer|distinct',
            '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',
            'pay_method.required' => '请选择支付方式',
            'pay_method.in' => '支付方式不正确',
            'voucher_ids.required' => '请上传汇款凭证',
            'voucher_ids.min' => '请上传汇款凭证',
            'remark.max' => '备注超过最大长度',
        ]);

        $store = $this->currentStore($request);
        $billIds = array_map('intval', $data['bill_ids']);

        $payment = DB::transaction(function () use ($store, $data, $billIds) {
            $bills = BillModel::query()
                ->where('store_id', $store->id)
                ->whereIn('id', $billIds)
                ->lockForUpdate()
                ->get();
            if ($bills->count() !== count($billIds)) {
                throw new RepositoryException('包含不属于本店的账单，请刷新后重试');
            }
            foreach ($bills as $bill) {
                if ($bill->status === BillModel::STATUS_PAID) {
                    throw new RepositoryException('账单 ' . $bill->bill_no . ' 已支付，请刷新后重试');
                }
                if ((int) $bill->payment_id !== 0) {
                    throw new RepositoryException('账单 ' . $bill->bill_no . ' 已在支付审核中，请勿重复提交');
                }
            }

            $amount = $bills->reduce(
                static fn (string $carry, BillModel $bill): string => bcadd($carry, (string) $bill->total_amount, 2),
                '0'
            );

            $payment = PaymentModel::create([
                'payment_no' => app(BillNumberService::class)->make('ZF'),
                'store_id' => $store->id,
                'amount' => $amount,
                'pay_method' => (int) $data['pay_method'],
                'voucher_ids' => array_map('intval', $data['voucher_ids']),
                'status' => PaymentModel::STATUS_PENDING,
                'remark' => (string) ($data['remark'] ?? ''),
            ]);

            // 锁定账单到本支付记录（审核拒绝后释放，可重新付款）
            BillModel::query()->whereIn('id', $bills->pluck('id'))->update(['payment_id' => $payment->id]);

            return $payment;
        });

        return $this->success([
            'id' => $payment->id,
            'payment_no' => $payment->payment_no,
            'amount' => $payment->amount,
        ], '付款申请已提交，请等待商家审核');
    }

    /** 支付记录详情（校验归属；含合并账单与凭证图片） */
    #[GetRoute('/payment/{id}', authorize: true, where: ['id' => '[0-9]+'])]
    public function detail(int $id, Request $request): JsonResponse
    {
        $store = $this->currentStore($request);

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

        $bills = $payment->bills()
            ->orderBy('id')
            ->get(['id', 'bill_no', 'bill_date', 'product_amount', 'delivery_fee', 'added_amount', 'after_sale', 'total_amount', 'status'])
            ->toArray();

        $data = $payment->toArray();
        $data['voucher_urls'] = $payment->voucherUrls();

        return $this->success([
            'payment' => $data,
            'bills' => $bills,
        ]);
    }
}