<?php

namespace App\Module\GameItems\AdminControllers\Metrics;

use UCore\DcatAdmin\Metrics\Examples\Ranking;
use Illuminate\Http\Request;
use Illuminate\Support\Facades\DB;
use App\Module\GameItems\Models\ItemUser;
use App\Module\User\Models\User;

/**
 * 材料持有排名图表
 * 显示三大材料（木材/石材/钢材）的用户持有排名
 */
class MaterialRanking extends Ranking
{
    /**
     * 材料ID映射
     */
    protected $materialIds = [
        'wood' => 33,   // 木材
        'stone' => 34,  // 石材
        'steel' => 35,  // 钢材
    ];

    /**
     * 材料名称映射
     */
    protected $materialNames = [
        'wood' => '木材',
        'stone' => '石材', 
        'steel' => '钢材',
    ];

    /**
     * 初始化卡片内容
     */
    protected function init()
    {
        parent::init();
        
        $this->title('材料持有排名');
        $this->dropdown([
            'wood' => '木材排行榜',
            'stone' => '石材排行榜',
            'steel' => '钢材排行榜',
        ]);
    }

    /**
     * 处理请求
     *
     * @param Request $request
     * @return mixed|void
     */
    public function handle(Request $request)
    {
        $materialType = $request->get('option', 'wood');
        $data = $this->getMaterialRankingData($materialType);
        
        // 卡片内容
        $this->withContent($data);
    }

    /**
     * 获取材料排名数据
     *
     * @param string $materialType
     * @return array
     */
    protected function getMaterialRankingData($materialType)
    {
        $itemId = $this->materialIds[$materialType] ?? $this->materialIds['wood'];
        $materialName = $this->materialNames[$materialType] ?? $this->materialNames['wood'];
        
        // 查询用户材料持有量排名（前20名）
        $rankings = ItemUser::with('user')
            ->select([
                'user_id',
                DB::raw('SUM(quantity) as total_quantity')
            ])
            ->where('item_id', $itemId)
            ->where('is_frozen', 0) // 排除冻结的物品
            ->whereNull('expire_at') // 排除已过期的物品
            ->groupBy('user_id')
            ->orderByDesc('total_quantity')
            ->limit(20)
            ->get();

        $result = [];
        foreach ($rankings as $index => $ranking) {
            $username = $ranking->user ? $ranking->user->username : null;
            $result[] = [
                'rank' => $index + 1,
                'title' => $username ?: "用户{$ranking->user_id}",
                'number' => number_format($ranking->total_quantity) . ' 个',
            ];
        }

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

        return $result;
    }
}