<?php

namespace App\Admin\Forms;

use App\Exceptions\BizException;
use App\Models\DrawActivity;
use App\Models\User;
use App\Services\DrawTicketService;
use Dcat\Admin\Contracts\LazyRenderable;
use Dcat\Admin\Traits\LazyWidget;
use Dcat\Admin\Widgets\Form;
use Illuminate\Database\QueryException;
use Illuminate\Support\Facades\DB;
use Throwable;

class DrawActivityTicketChange extends Form implements LazyRenderable
{
    use LazyWidget;

    public const TYPE_ADD = 1;
    public const TYPE_SUB = 2;

    /**
     * @param Model|Authenticatable|HasPermissions|null $user
     *
     * @return bool
     */
    protected function authorize($user): bool
    {
        return $user->can('dcat.admin.draw_activities.change_tickets');
    }

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        $drawActivity = DrawActivity::findOrFail($this->payload['id']);

        if ($drawActivity->isClosed()) {
            throw new BizException('活动已结束');
        }

        $user = User::findOrFail($input['user_id']);

        switch ($input['type']) {
            case static::TYPE_SUB:
                $number = $input['number'] * -1;
                $remark = $input['remark'] ?? '系统扣除';
                break;

            default:
                $number = $input['number'];
                $remark = $input['remark'] ?? '系统增加';
                break;
        }

        try {
            DB::beginTransaction();

            (new DrawTicketService())->change($user, $drawActivity, $number, $remark);

            DB::commit();
        } catch (QueryException $e) {
            DB::rollBack();

            if (strpos($e->getMessage(), 'Numeric value out of range') !== false) {
                throw new BizException('抽奖次数不足');
            }

            throw $e;
        } catch (Throwable $e) {
            DB::rollBack();

            throw $e;
        }

        return $this->response()
                    ->success(__('admin.update_succeeded'))
                    ->refresh();
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $this->radio('type', '类型')
            ->options([
                static::TYPE_ADD => '增加',
                static::TYPE_SUB => '扣除',
            ])
            ->required();

        $this->select('user_id', '手机号')
            ->ajax(admin_route('api.users'))
            ->required();

        $this->number('number', '次数')
            ->min(0)
            ->required();

        $this->textarea('remark', '备注')
            ->rules(['max:255']);
    }

    public function default()
    {
        return [
            'type' => static::TYPE_ADD,
            'number' => 1,
        ];
    }
}