<?php

namespace bizMall\message\services;

use bizHd\custom\classes\HdClass;
use bizMall\base\services\BaseService;
use bizMall\message\classes\ChatClass;
use bizMall\shop\classes\ShopClass;
use bizMall\user\services\UserService;
use common\components\arrayUtil;
use common\components\imgUtil;
use Yii;
use yii\helpers\ArrayHelper;

class ChatService extends BaseService
{
	
	//新增未读消息数
	public static function addUnreadNum($userId)
	{
		$key = ChatClass::getUnreadNumKey($userId);
		Yii::$app->redis->executeCommand('INCRBY', [$key, 1]);
	}
	
	//新增未回复客户 ssh 2019.12.29
	public static function addUnReplyUser($sjId, $userId)
	{
		$now = time();
		$cacheKey = ChatClass::getUnReplyUserKey($sjId);
		Yii::$app->redis->executeCommand('ZADD', [$cacheKey, $now, "{$userId}"]);
	}
	
	//取未回复客户列表 ssh 2019.12.29
	public static function getUnReplyUserList($sjId)
	{
		$cacheKey = ChatClass::getUnReplyUserKey($sjId);
		$return = Yii::$app->redis->executeCommand('ZREVRANGE', [$cacheKey, 0, -1, 'WITHSCORES']);//返回有序集合，从高分到低分排序
		if (empty($return)) {
			return [];
		}
		$list = [];
		$i = 0;
		$arr = [];
		foreach ($return as $key => $val) {
			if ($key % 2 == 0) {
				$arr[$i]['value'] = $val;
			} else {
				$arr[$i]['key'] = $val;
				$i++;
			}
		}
		foreach ($arr as $key => $val) {
			$list[$val['key']] = $val['value'];
		}
		return $list;
	}
	
	//新增最近联系人
	public static function addRecentlyUser($sjId, $userId)
	{
		$now = time();
		$cacheKey = ChatClass::getRecentlyUserKey($sjId);
		
		//删除10天前的联系人
		$max = $now - 86400 * 10;
		Yii::$app->redis->executeCommand('ZREMRANGEBYSCORE', [$cacheKey, 0, $max]);
		
		Yii::$app->redis->executeCommand('ZADD', [$cacheKey, $now, "{$userId}"]);
	}
	
	//取最近联系人 ssh 2019.12.29
	public static function getRecentlyUserList($sjId)
	{
		$userIdList = [12536630, 12536631, 12536632, 12536633, 12536634, 12536635];
		$userId = $userIdList[array_rand($userIdList)];
		self::addRecentlyUser($sjId, $userId);
		
		$cacheKey = ChatClass::getRecentlyUserKey($sjId);
		//返回有序集合，从高分到低分排序
		$return = Yii::$app->redis->executeCommand('ZREVRANGE', [$cacheKey, 0, -1, 'WITHSCORES']);
		if (empty($return)) {
			return [];
		}
		$i = 0;
		$arr = [];
		foreach ($return as $key => $val) {
			if ($key % 2 == 0) {
				$arr[$i]['userId'] = $val;
			} else {
				$arr[$i]['time'] = $val;
				$i++;
			}
		}
		$userData = [];
		//组合出最后聊天时间和未读消息数
		foreach ($arr as $val) {
			$userId = $val['userId'];
			$time = $val['time'];
			$num = ChatClass::getUnreadNum($userId);
			$date = date("m-d H:i", $time);
			if (date("Ymd") == date("Ymd", $time)) {
				$date = date("H:i", $time);
			}
			$userData[$userId] = ['time' => $date, 'unReadNum' => $num];
		}
		$ids = array_column($arr, 'userId');
		$infoList = UserService::getUserByIds($ids);
		foreach ($infoList as $userId => $info) {
			$infoList[$userId]['unReadNum'] = isset($userData[$userId]['unReadNum']) ? $userData[$userId]['unReadNum'] : 0;
			$infoList[$userId]['chatTime'] = isset($userData[$userId]['time']) ? $userData[$userId]['time'] : date("m-d H:i", $info['visitTime']);
		}
		return array_values($infoList);
	}
	
	//保存消息记录 ssh 2019.12.29
	public static function saveMessage($messageList, $userId)
	{
		//商家的消息，ourSelf表示自己的消息 themSelf表示对方的消息
		$now = time();
		$cacheKey = ChatClass::getMessageKey($userId);
		
		//删除15天前的已读消息
		$max = $now - 86400 * 16;
		Yii::$app->redis->executeCommand('ZREMRANGEBYSCORE', [$cacheKey, 0, $max]);
		
		foreach ($messageList as $message) {
			Yii::$app->redis->executeCommand('ZADD', [$cacheKey, $now, json_encode($message)]);
		}
		//self::getMessageList($userId);
	}
	
	//取消息记录 ssh 2019.12.29
	public static function getMessageList($userId)
	{
		$cacheKey = ChatClass::getMessageKey($userId);
		//返回有序集合，从高分到低分排序
		$return = Yii::$app->redis->executeCommand('ZREVRANGE', [$cacheKey, 0, -1, 'WITHSCORES']);
		if (empty($return)) {
			return [];
		}
		$i = 0;
		$arr = [];
		foreach ($return as $key => $val) {
			if ($key % 2 == 0) {
				$arr[$i]['message'] = $val;
			} else {
				$arr[$i]['time'] = $val;
				$i++;
			}
		}
		$arr = arrayUtil::arraySort($arr, 'time');
		$data = [];
		foreach ($arr as $val) {
			$message = $val['message'];
			$data[] = json_decode($message);
		}
		return $data;
	}

	public static function getChatHistory($roomName)
    {
		if (empty($roomName)) {
			return [];
		}
		try {
			$list = Yii::$app->redis->executeCommand('LRANGE', [$roomName, 0, -1]);
			if (empty($list)) {
				return [];
			}
			$result = [];
			foreach ($list as $item) {
				$decoded = json_decode($item, true);
				$struct = (json_last_error() === JSON_ERROR_NONE) ? $decoded : $item;
				$content = $struct['content'];
                $message = json_decode($content, true);
				$result[] = json_decode($message['message'], true);
			}
			return $result;
		} catch (\Throwable $e) {
			Yii::error('getChatHistory redis error: ' . $e->getMessage(), __METHOD__);
			return [];
		}
    }

	// ------------------------------------------------  以下是新增的聊天方法  ------------------------------------------------

    /**
     * 最近聊天人（人：可能是客户，也可能是商家）
     * @param int $userId
     * @return array|\yii\db\ActiveRecord[]
     */
    public static function getLatestUsers($userId)
    {
        $cacheKey = ChatClass::getLatestUsersKey($userId);
        //返回有序集合，从高分到低分排序
        $return = Yii::$app->redis->executeCommand('ZREVRANGE', [$cacheKey, 0, -1, 'WITHSCORES']);
        if (empty($return)) {
            return [];
        }
        $i = 0;
        $arr = [];
        foreach ($return as $key => $val) {
            if ($key % 2 == 0) {
                $arr[$i]['shopId'] = $val;
            } else {
                $arr[$i]['time'] = $val;
                $i++;
            }
        }
        $userData = [];
        //组合出最后聊天时间和未读消息数
        foreach ($arr as $val) {
            $shopId = $val['shopId'];
            $float = floatval($val['time']);
            $decimalPart = $float - floor($float);
            $unReadNum = intval($decimalPart * 10000 + 0.5); // 加0.5 -- 使用四舍五入来处理浮点数精度问题
            $time = intval($val['time']);
            $date = date("Y-m-d H:i", $time);

            $userData[$shopId] = ['time' => $date, 'unReadNum' => $unReadNum];
        }
        $ids = array_column($arr, 'shopId');
        $where = [];
        $where['userId'] = $userId;
        $where['delStatus'] = 0;
        $hdList = HdClass::getAllByCondition($where,'inTurn DESC, addTime DESC', 'id, customId, shopId');
        // 生成以 shopId 为键的新数组
        $hdListByShopId = ArrayHelper::index($hdList, 'shopId');
        $shopList = ShopClass::getByIds($ids, null, null, 'id, avatar, shopName, merchantName');
        foreach ($shopList as $key => $shop) {
            $shopId = $shop['id'];
            $shopList[$key]['unReadNum'] = isset($userData[$shopId]['unReadNum']) ? $userData[$shop['id']]['unReadNum'] : 0;
            $shopList[$key]['chatTime'] = isset($userData[$shopId]['time']) ? $userData[$shop['id']]['time'] : 0;
			$shopList[$key]['customId'] = isset($hdListByShopId[$shopId]['customId']) ? $hdListByShopId[$shop['id']]['customId'] : 0;
			$shopList[$key]['hdId'] = $hdListByShopId[$shopId]['id'];

            $shopList[$key]['avatar'] = imgUtil::groupImg($shop['avatar']) . "?x-oss-process=image/resize,m_fill,h_130,w_130";
        }
        $shopList = arrayUtil::arraySort($shopList, 'chatTime', SORT_DESC);
        return array_values($shopList);
    }

    /**
     * @param int $userId 用户id
     * @param string $unit 单位分：个数（person）消息（message）
     * @return int
     */
    public static function getUnReadMsgCount($userId, $unit='person')
    {
        $cacheKey = ChatClass::getLatestUsersKey($userId);
        //返回有序集合，从高分到低分排序
        $return = Yii::$app->redis->executeCommand('ZREVRANGE', [$cacheKey, 0, -1, 'WITHSCORES']);
        if (empty($return)) {
            return 0;
        }
        $i = 0;
        $arr = [];
        foreach ($return as $key => $val) {
            if ($key % 2 == 0) {
                $arr[$i]['sId'] = $val;//shopId
            } else {
                $arr[$i]['score'] = $val;
                $i++;
            }
        }

        $msgCount = 0;
        foreach ($arr as $val) {
            $score = floatval($val['score']);
            $decimalPart = $score - floor($score);
            $unReadNum = intval($decimalPart * 10000 + 0.5); // 加0.5 -- 使用四舍五入来处理浮点数精度问题

            //根据未读消息数的单位进行计算总数
            if ($unit == 'person'){
                $msgCount += ($unReadNum >= 1 ? 1 : 0);
            } else if ($unit == 'message'){
                $msgCount += $unReadNum;
            }
        }

        return $msgCount;
    }

}