<?php

namespace App\Module\UrsPromotion\AdminControllers\Metrics;

use App\Module\UrsPromotion\Models\UrsUserReferral;
use UCore\DcatAdmin\Metrics\Examples\Ranking;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;

/**
 * URS团队排名卡片
 * 显示团队推广总数排名前10名（直推+间推+三推）
 */
class UrsTeamRankingCard extends Ranking
{
    /**
     * 初始化卡片内容
     */
    protected function init()
    {
        parent::init();
        
        $this->title('团队排行榜');
    }

    /**
     * 处理请求
     *
     * @param Request $request
     * @return mixed|void
     */
    public function handle(Request $request)
    {
        $data = $this->getTeamRankingData();
        
        // 卡片内容
        $this->withContent($data);
    }

    /**
     * 获取团队排名数据
     * 统计每个推荐人的团队总人数（直推+间推+三推）
     *
     * @return array
     */
    protected function getTeamRankingData(): array
    {
        // 使用子查询统计团队总数
        $fullTableName = DB::getTablePrefix() . (new UrsUserReferral())->getTable();
        $rankings = UrsUserReferral::select([
                'urs_referrer_id',
                'referrer_id',
                'users.username',
                DB::raw('(
                    -- 直推数量
                    SELECT COUNT(DISTINCT r_direct.urs_user_id)
                    FROM ' . $fullTableName . ' r_direct
                    WHERE r_direct.urs_referrer_id = ' . $fullTableName . '.urs_referrer_id
                    AND r_direct.status = 1
                ) + (
                    -- 间推数量
                    SELECT COUNT(DISTINCT r_indirect.urs_user_id)
                    FROM ' . $fullTableName . ' r_level1
                    JOIN ' . $fullTableName . ' r_indirect ON r_level1.urs_user_id = r_indirect.urs_referrer_id
                    WHERE r_level1.urs_referrer_id = ' . $fullTableName . '.urs_referrer_id
                    AND r_level1.status = 1 AND r_indirect.status = 1
                ) + (
                    -- 三推数量
                    SELECT COUNT(DISTINCT r_third.urs_user_id)
                    FROM ' . $fullTableName . ' r_level1
                    JOIN ' . $fullTableName . ' r_level2 ON r_level1.urs_user_id = r_level2.urs_referrer_id
                    JOIN ' . $fullTableName . ' r_third ON r_level2.urs_user_id = r_third.urs_referrer_id
                    WHERE r_level1.urs_referrer_id = ' . $fullTableName . '.urs_referrer_id
                    AND r_level1.status = 1 AND r_level2.status = 1 AND r_third.status = 1
                ) as team_count')
            ])
            ->leftJoin('users', 'urs_promotion_user_referrals.referrer_id', '=', 'users.id')
            ->where('urs_promotion_user_referrals.status', UrsUserReferral::STATUS_VALID)
            ->groupBy('urs_promotion_user_referrals.urs_referrer_id', 'urs_promotion_user_referrals.referrer_id', 'urs_promotion_user_referrals.urs_user_id', 'users.username')
            ->orderBy('team_count', 'desc')
            ->limit(10)
            ->get();

        $result = [];
        foreach ($rankings as $index => $ranking) {
            $username = $ranking->username ?: 'URS用户' . $ranking->urs_referrer_id;
            $result[] = [
                'rank' => $index + 1,
                'title' => $username,
                'number' => $ranking->team_count . ' 人',
            ];
        }

        // 如果没有数据，返回空排名提示
        if (empty($result)) {
            $result[] = [
                'rank' => '-',
                'title' => '暂无团队数据',
                'number' => '0 人',
            ];
        }

        return $result;
    }
}