<?php

namespace app\chukebao\controller;

use library\ResponseHelper;
use think\Db;

class WechatChatroomController extends BaseController
{

    public function getList(){
        $page = $this->request->param('page', 1);
        $limit =  $this->request->param('limit', 10);
        $accountId = $this->getUserInfo('s2_accountId');
        if (empty($accountId)){
            return ResponseHelper::error('请先登录');
        }
        $query = Db::table('s2_wechat_chatroom')
            ->where(['accountId' => $accountId,'isDeleted' => 0])
            ->order('id desc');
        $list = $query->page($page, $limit)->select();
        $total = $query->count();


        // 提取所有聊天室ID，用于批量查询
        $chatroomIds = array_column($list, 'id');
        
        
        // 一次性查询所有聊天室的未读消息数量
        $unreadCounts = [];
        if (!empty($chatroomIds)) {
            $unreadResults = Db::table('s2_wechat_message')
                ->field('wechatChatroomId, COUNT(*) as count')
                ->where('wechatChatroomId', 'in', $chatroomIds)
                ->where('isRead', 0)
                ->group('wechatChatroomId')
                ->select();
            
            foreach ($unreadResults as $result) {
                $unreadCounts[$result['wechatChatroomId']] = $result['count'];
            }
        }
         // 一次性查询所有聊天室的最新消息
        $latestMessages = [];
        if (!empty($chatroomIds)) {
            // 使用子查询获取每个聊天室的最新消息ID
            $subQuery = Db::table('s2_wechat_message')
                ->field('MAX(id) as max_id, wechatChatroomId')
                ->where('wechatChatroomId', 'in', $chatroomIds)
                ->group('wechatChatroomId')
                ->buildSql();
            
            // 查询最新消息的详细信息
            $messageResults = Db::table('s2_wechat_message')
                ->alias('m')
                ->join([$subQuery => 'sub'], 'm.id = sub.max_id')
                ->field('m.*, sub.wechatChatroomId')
                ->select();
            
            foreach ($messageResults as $message) {
                $latestMessages[$message['wechatChatroomId']] = $message;
            }
        }
        
        // 处理每个聊天室的数据
        foreach ($list as $k => &$v) {
            $v['createTime'] = !empty($v['createTime']) ? date('Y-m-d H:i:s', $v['createTime']) : '';
            $v['updateTime'] = !empty($v['updateTime']) ? date('Y-m-d H:i:s', $v['updateTime']) : '';
            
            $config = [
                'unreadCount' => isset($unreadCounts[$v['id']]) ? $unreadCounts[$v['id']] : 0,
                'chat' => isset($latestMessages[$v['id']]),
                'msgTime' => isset($latestMessages[$v['id']]) ? $latestMessages[$v['id']]['wechatTime'] : 0
            ];
            $v['config'] = $config;
        }
        unset($v);

        return ResponseHelper::success(['list'=>$list,'total'=>$total]);
    }
}