jiqu-library-server/app/Admin/Controllers/VipController.php

<?php

namespace App\Admin\Controllers;

use App\Exceptions\BizException;
use App\Models\{Vip, Coupon};
use Dcat\Admin\Admin;
use Dcat\Admin\Form;
use Dcat\Admin\Grid;
use Dcat\Admin\Http\Controllers\AdminController;
use Dcat\Admin\Show;
use EasyWeChat\Factory;
use EasyWeChat\Kernel\Http\StreamResponse;
use Illuminate\Support\Facades\Storage;

class VipController extends AdminController
{
    /**
     * 维信小程序码
     */
    public function mpQrcode()
    {
        $disk = Storage::disk('public');

        $directory = '';
        $filename = 'buy_vip_qrcode.png';
        $filepath = ($directory ? "{$directory}/" : '').$filename;

        if (! $disk->exists($filepath)) {
            $scene = http_build_query(['vip' => 1]);

            $app = Factory::miniProgram(config('wechat.mini_program.default'));

            $response = $app->app_code->getUnlimit($scene, [
                'page'  => 'pages/welcome/index',
                'check_path' => false,
                'env_version' => app()->isProduction() ? 'release' : 'trial',
                'width' => 200,
            ]);

            if (! $response instanceof StreamResponse) {
                throw new BizException('小程序码获取失败');
            }

            $response->saveAs($disk->path($directory), $filename);
        }

        return $disk->download($filepath);
    }

    protected function grid()
    {
        return Grid::make(new Vip(), function (Grid $grid) {

            $grid->column('id');
            $grid->column('name');
            $grid->column('times')->display(function ($v) {
                return data_get($v, 'text');
            });
            $grid->column('price');
            $grid->column('points')->display(fn() => data_get($this->gift, 'points', 0));
            $grid->column('sort')->editable();
            $grid->column('status')->switch();

            $grid->tools(function (Grid\Tools $tools) {
                if (Admin::user()->can('dcat.admin.vip.mp_qrcode')) {
                    $tools->append('<a class="btn btn-primary btn-outline" href="'.route('dcat.admin.vip.mp_qrcode').'" target="_blank"><i class="feather grid-action-icon icon-download"></i>&nbsp;下载小程序码</a>');
                }
            });

            $grid->disableViewButton(false);
            //新增
            $grid->showCreateButton(Admin::user()->can('dcat.admin.vip.create'));
            //修改
            $grid->showEditButton(Admin::user()->can('dcat.admin.vip.edit'));
            $grid->showDeleteButton(Admin::user()->can('dcat.admin.vip.destroy'));
        });
    }

    /**
     * Make a show builder.
     *
     * @param mixed $id
     *
     * @return Show
     */
    protected function detail($id)
    {
        return Show::make($id, new Vip(), function (Show $show) {
            $show->field('id');
            $show->field('name');
            $show->field('times')->as(function ($v) {
                return data_get($v, 'text');
            });
            $show->filed('price');
            $show->filed('sort');
            $show->field('status');
            $show->field('description');
            $show->field('gift')->view('admin.vip.gift');
            $show->field('created_at');
            $show->field('updated_at');

            $show->disableEditButton();
            $show->disableDeleteButton();
        });
    }

    /**
     * Make a form builder.
     *
     * @return Form
     */
    protected function form()
    {
        return Form::make(new Vip(), function (Form $form) {
            $form->display('id');
            $form->text('name')->required();
            $form->embeds('times', function ($form) {
                $form->number('num', '数量')->min(0)->required();
                $form->select('unit', '单位')->options(Vip::$timeMap)->required();
                $form->text('text', '描述')->required();
            });
            $form->number('price')->min(0);
            $form->number('sort')->min(0);
            $form->switch('status')->default(1);
            $form->textarea('description');

            $form->number('points')
                ->min(0)
                ->customFormat(fn () => data_get($this->gift, 'points'));
            $form->table('coupon', function ($table) {
                $table->select('id', '优惠券')->options(Coupon::class)->ajax('api/coupons');
                $table->number('amount', '数量')->min(1)->default(1);
            })->customFormat(fn() => data_get($this->gift, 'coupon'));

            $form->hidden('gift')->customFormat(fn($v) => json_encode($v));

            $form->disableCreatingCheck();
            $form->disableEditingCheck();
            $form->disableDeleteButton();

            $form->saving(function (Form $form) {
                $gift = $form->model()?->gift ?: [];

                $points = str_replace(',', '', $form->input('points'));
                if ($points > 0) {
                    $gift['points'] = $points;
                } else {
                    unset($gift['points']);
                }

                if ($form->coupon) {
                    // [id, amount, name]
                    $couponList = [];
                    foreach($form->coupon as $item) {
                        if (!data_get($item, '_remove_') && $item['amount'] > 0) {
                            $coupon = Coupon::findOrFail($item['id']);
                            array_push($couponList, ['id' => $coupon->id, 'amount' => $item['amount'], 'name' => $coupon->name]);
                        }
                    }
                    $gift['coupon'] = $couponList;
                }

                $form->gift = $gift;
                $form->deleteInput(['points', 'coupon']);
            });
        });
    }
}