<?php
// +----------------------------------------------------------------------
// | saiadmin [ saiadmin快速开发框架 ]
// +----------------------------------------------------------------------
// | Author: your name
// +----------------------------------------------------------------------
namespace app\dice\logic\lottery_pool_config;

use app\dice\model\lottery_pool_config\DiceLotteryPoolConfig;
use plugin\saiadmin\basic\think\BaseLogic;
use plugin\saiadmin\exception\ApiException;
use plugin\saiadmin\utils\Helper;
use support\think\Cache;

/**
 * 色子奖池配置逻辑层
 */
class DiceLotteryPoolConfigLogic extends BaseLogic
{
    /** Redis 当前彩金池（type=0 实例）key，无则按 type=0 创建 */
    private const REDIS_KEY_CURRENT_POOL = 'api:game:lottery_pool:default';

    private const EXPIRE = 86400 * 7;

    /**
     * 构造函数
     */
    public function __construct()
    {
        $this->model = new DiceLotteryPoolConfig();
    }

    /**
     * 获取当前彩金池（type=0）+ 杀分权重为 type=1 的只读展示
     * profit_amount 每次从 DB 实时读取；t1_weight～t5_weight 来自 type=1（杀分权重，不可在弹窗内修改）
     *
     * @return array{id:int,name:string,safety_line:int,t1_weight:int,...,t5_weight:int,profit_amount:float}
     */
    public function getCurrentPool(): array
    {
        $configType0 = DiceLotteryPoolConfig::where('type', 0)->find();
        if (!$configType0) {
            throw new ApiException('未找到 type=0 的奖池配置，请先创建');
        }
        $configType1 = DiceLotteryPoolConfig::where('type', 1)->find();
        $row0 = $configType0->toArray();
        $profitAmount = isset($row0['profit_amount']) ? (float) $row0['profit_amount'] : (isset($row0['ev']) ? (float) $row0['ev'] : 0.0);
        $pool = [
            'id'            => (int) $row0['id'],
            'name'          => (string) ($row0['name'] ?? ''),
            'safety_line'   => (int) ($row0['safety_line'] ?? 0),
            'profit_amount' => $profitAmount,
        ];
        $row1 = $configType1 ? $configType1->toArray() : [];
        $pool['t1_weight'] = (int) ($row1['t1_weight'] ?? 0);
        $pool['t2_weight'] = (int) ($row1['t2_weight'] ?? 0);
        $pool['t3_weight'] = (int) ($row1['t3_weight'] ?? 0);
        $pool['t4_weight'] = (int) ($row1['t4_weight'] ?? 0);
        $pool['t5_weight'] = (int) ($row1['t5_weight'] ?? 0);
        return $pool;
    }

    /**
     * 更新当前彩金池：仅允许修改 type=0 的 safety_line（杀分权重来自 type=1，不可在此接口修改）
     *
     * @param array{safety_line?:int} $data
     */
    public function updateCurrentPool(array $data): void
    {
        $pool = $this->getCurrentPool();
        $id = (int) $pool['id'];
        if (!array_key_exists('safety_line', $data)) {
            return;
        }
        $safetyLine = (int) $data['safety_line'];
        DiceLotteryPoolConfig::where('id', $id)->update(['safety_line' => $safetyLine]);
    }

    /**
     * 重置当前彩金池的玩家累计盈利：将 profit_amount 置为 0，并刷新 Redis 缓存
     */
    public function resetProfitAmount(): void
    {
        $pool = $this->getCurrentPool();
        $id = (int) $pool['id'];
        DiceLotteryPoolConfig::where('id', $id)->update(['profit_amount' => 0]);
        $pool['profit_amount'] = 0.0;
        Cache::set(self::REDIS_KEY_CURRENT_POOL, json_encode($pool), self::EXPIRE);
    }
}