<?php

namespace App\Admin\Forms;

use Dcat\Admin\Widgets\Form;
use App\Models\{Guess, GuessOption, UserGuess};
use Dcat\Admin\Traits\LazyWidget;
use Dcat\Admin\Contracts\LazyRenderable;

/**
 * 弹窗设置竞猜答案
 */
class GuessAnswer extends Form implements LazyRenderable
{
    use LazyWidget;

    /**
     * Handle the form request.
     *
     * @param array $input
     *
     * @return mixed
     */
    public function handle(array $input)
    {
        $id = $this->payload['id'] ?? null;
        $info = Guess::findOrFail($id);
        if ($info->prize_state === Guess::PRIZE_EXIST) {
            return $this->response()->error('已经公布答案');
        }
        
        // 正确答案id
        $answers = $input['option'];
        sort($answers);
        if (count($answers) != $info->num) {
            return $this->response()->error('答案应该有'.$info->num.'个');
        }
        // 关闭答题活动
        $info->update([
            'prize_state' => Guess::PRIZE_EXIST
        ]);

        // 修改选项结果
        
        $info->options()->update([
            'correct_state' => GuessOption::UN_CORRECT
        ]);
        $info->options()->whereIn('id', $answers)->update([
            'correct_state' => GuessOption::CORRECT
        ]);

        // 回答正确的记录
        $right_ids = [];
        // 遍历所有答题记录
        foreach($info->users()->with(['options'])->get() as $item) {
            $options_id = $item->options->pluck('id')->all();
            sort($options_id);
            if ($options_id == $answers) {
                array_push($right_ids, $item->id);
            }
        }

        // 开奖
        $prize_id = [];

        $prize_num = data_get($input, 'prize_num', 1);
        if ($prize_num > 0) {
            # code...
            if ($prize_num > count($right_ids)) {
                $prize_num = count($right_ids);
                $prize_id = $right_ids;
            } else if($prize_num == 1 && count($right_ids) >= 1) {
                $prize_id_key = array_rand($right_ids, $prize_num);
                $prize_id[] = $right_ids[$prize_id_key];
            } else if ($prize_num > 1 && count($right_ids) >= 2) {
                $prize_id_key = array_rand($right_ids, $prize_num);
                foreach ($prize_id_key as $key => $value) {
                    $prize_id[] = $right_ids[$value];
                }
            }
        }

        $info->users()->update([
            'correct_state' => UserGuess::UN_CORRECT,
            'prize_state' => UserGuess::PRIZE_NO
        ]);
        if (count($right_ids) > 0) {
            $info->users()->whereIn('id', $right_ids)->update([
                'correct_state' => UserGuess::CORRECT
            ]);
        }
        if (count($prize_id) > 0) {
            $info->users()->whereIn('id', $prize_id)->update([
                'prize_state' => UserGuess::PRIZE_YES
            ]);
        }
        if ($input['tel'] && $input['tel'] != '') {
            # code...
            $tel_array = explode(',', $input['tel']);
            if (count($tel_array) > 0) {
                $info->users()->whereHas('user', function ($query) use($tel_array) {
                    $query->whereIn('phone', $tel_array);
                })->update([
                    'prize_state' => UserGuess::PRIZE_YES
                ]);
            }
        }
        return $this->response()->success('操作成功')->refresh();
    }

    /**
     * Build a form here.
     */
    public function form()
    {
        $id = $this->payload['id'] ?? null;
        $info = Guess::findOrFail($id);
        $options = $info->options()->pluck('option_name', 'id');
        
        $this->disableResetButton();
        $this->checkbox('option', '选项')->help('请勾选正确的选项')->options($options)->canCheckAll();
        $this->number('prize_num', '多少个奖励')->default(0)->min(0)->help('多少个奖励');
        $this->text('tel', '电话号码')->help('用户电话号码');
    }
}