<?php

namespace Cas\Module;

use KIF\Core\Request;
use KIF\Page\Page;
use KIF\Verify;
use Cas\Dao\LotteryEvents;
use KIF\Core\Config;
use KIF\Image;
use Cas\Dao\LotteryPrize;
use KIF\Cache\Memcached;
use KIF\Dao\SqlHelper;
use Cas\Dao\LotteryPrizeVirtualData;
use Cas\Dao\LotteryData;
use Cas\Module\LotteryLog;
use Cas\Dao\LotteryEventsLog as DLog;
use Cas\Dao\LotteryEventsLetters;
use Cas\Dao\LotteryEventsUserLetters;
/**
 *
 *
 * 抽奖[字母] 模型
 *
 * @author lihuanchun
 */
class LotteryDrawLetters  {
	
	private $objMemcached;
	
	private $objRank;
	
	private $uid;
	
	private $eventsId;
	
	private $objDLotteryEvents;
	
	private $objMlottery;
	
	private $objDLotteryPrizeVirtualData;
	
	private $objMLotteryEventsLimitations;
	
	private $objDLotteryEventsLetters;
	
	private $objDLotteryData;
	
	private $objMLotteryLog;
	
	private $version;
	
	private $thisTime;
	
	public function __construct($uid=null , $eventsId=null ) {
		$this->objMemcached = new Memcached();
		$this->objRank = new Rank();
		$this->uid = $uid;
		$this->eventsId = $eventsId;
		$this->objDLotteryEvents = new LotteryEvents();
		$this->objDLotteryPrize = new LotteryPrize();
		$this->objDLotteryPrizeVirtualData = new LotteryPrizeVirtualData();
		$this->objDLotteryData = new LotteryData();
		$this->objMlottery = new Lottery();
		$this->objMLotteryEventsLimitations = new LotteryEventsLimitations();
		$this->objMLotteryLog = new LotteryLog($uid,$eventsId);
		$this->objDLotteryEventsLetters = new LotteryEventsLetters();
		$this->version = '0.1';
		$this->thisTime = time();
	}
	
	
	public function verifyPrize($letters_ids=array()){
		
		$eventsAndPrize =  $this->objMlottery->getOneLotteryEventsAndPrize($this->eventsId);
		
		$eventsLettersData = $this->objDLotteryEventsLetters -> getEventData($this->eventsId);
		
		// 过滤用户抽中的 字母
		foreach($letters_ids as $key => $letters_id){
			unset($eventsLettersData[$letters_id]);
		}
		$keys = array_keys($eventsLettersData);
		
		shuffle($keys);
		$randEventsLettersData = array();
		foreach($keys as $key=>$data){
			$randEventsLettersData[$data] = $eventsLettersData[$data];
		}
		
		
		foreach($randEventsLettersData as $letters){
			$letters_id = $letters['id'];
			$begin_hour = 0;
			$end_hour = 24;
			$this_hour = date("H",$this->thisTime);
			# 验证当前将奖项 库存数量
			if($letters['num']-$letters['winning_num'] <= 0){
				continue;
			}
			
			# 获取下一次的中奖时间 【开始抽奖逻辑】
			$nextWinTime = $this->getNextWinTime($letters_id);
			if (!$this->lock($letters_id)) return false;
			if (!$nextWinTime) {
				$isWin = false;
				$this->setNextWinTime($letters_id);
			} elseif ($nextWinTime <= $this->thisTime) {
				$isWin = true;
				# 发奖
				$this->awards($letters_id,$nextWinTime);
				$this->setNextWinTime($letters_id);
				$this->unlock($letters_id);
				return $letters_id;
				break;
			}
			$this->unlock($letters_id);
			continue;
		}
		return false;
	}
	
	
	/**
	 * 清除下次中奖时间 并且动态计算下次中奖时间
	 */
	public function clear_draw_next_time($letters_id) {
		$memkey = $this->getCacheKeyOfTimeBucketWinTimes($letters_id);
		$this->objMemcached->delete($memkey);
		$memkey = $this->getCacheKeyOfNextWinTime($letters_id);
		$this->objMemcached->delete($memkey);
		$this->setNextWinTime($letters_id);
	}
	
	
	/**
	 * 发奖逻辑
	 */
	public function awards($letters_id,$winTime){
		$objDLotteryEventsUserLetters = new LotteryEventsUserLetters();
		$info = array(
			'uid' => $this->uid,
			'events_id' => $this->eventsId,	
			'ABC_data' => 	$letters_id,
		);
		$objDLotteryEventsUserLetters -> addLetters($info);
		$this->objDLotteryEventsLetters -> upLettersWinningNum($letters_id, 1);
		$this->objDLotteryEventsLetters -> cumulativeTodayHasWinTotal($letters_id);
	}
	
	
	/**
	 * 开启抽奖锁
	 * @return boolean | null
	 */
	public function lock($letters_id) {
		return $this->objMemcached->add($this->getCacheKeyOfLock($letters_id), true, 10);
	}
	
	/**
	 * 关闭抽奖锁
	 * @return boolean | null
	 */
	public function unlock($letters_id) {
		return $this->objMemcached->delete($this->getCacheKeyOfLock($letters_id));
	}
	
	/**
	 * 获取抽奖锁 cache key
	 * @return string
	 */
	public function getCacheKeyOfLock($letters_id) {
		return "lottery_draw_lock_letters_{$letters_id}";
	}
	
	/**
	 * 设置当天下次中奖时间
	 * @return boolean | null
	 */
	public function setNextWinTime($letters_id) {
		$hasWinTotal = $this->objDLotteryEventsLetters->getTodayHasWinTotal($letters_id);
		
		$timeBucketWinTimes = $this->getTimeBucketWinTimes($letters_id);
		
		$next_win_time = $this->objRank->winnerCal($timeBucketWinTimes, $hasWinTotal);
		
		return $this->objMemcached->set($this->getCacheKeyOfNextWinTime($letters_id), $next_win_time, 60*60*24);
	}
	
	/**
	 * 获取当天每个时间断中奖次数
	 * @return array
	 */
	public function getTimeBucketWinTimes($letters_id) {
		$memkey = $this->getCacheKeyOfTimeBucketWinTimes($letters_id);
		$timeBucketWinTimes = $this->objMemcached->get($memkey);
		if (!$timeBucketWinTimes) {
			$replyInfo = $this->objDLotteryEventsLetters->get($letters_id);
			$eventsData = $this->objDLotteryEvents->get($this->eventsId);
			
			$gift_amount = $replyInfo['num'];
			
			if ($gift_amount <= 0) {
				return false;
			}
			$start_time = $eventsData['start_time'];
			$end_time = $eventsData['end_time'];
			
			$today_time = mktime(0,0,0);
			$overTotal = ceil(($end_time - $today_time) / (60*60*24));//剩余天数
			
			$hasWinTimes = $replyInfo['winning_num'];
			$todayHasWinTimes =  $this->objDLotteryEventsLetters->getTodayHasWinTotal($letters_id);
			$needWinTimes = ceil(($gift_amount - $hasWinTimes) / $overTotal) - $todayHasWinTimes;
			$timeBucketWinTimes = $this->objRank->getTimeValue($needWinTimes, date('G'), 23);
			$this->objMemcached->set($memkey, $timeBucketWinTimes, 60 * 60 * 24);
		}
		return $timeBucketWinTimes;
	}
	
	/**
	 * 获取当天中奖数
	 */
	public function getCacheKeyOfTimeBucketWinTimes($letters_id){
		return date('Y_m_d',$this->thisTime).'_letters_'.$letters_id.'_winning_num';
	}
	
	/**
	 * 获取下次中奖时间
	 * @return string
	 */
	public function getNextWinTime($letters_id) {
		$next_win_time = $this->objMemcached->get($this->getCacheKeyOfNextWinTime($letters_id));
		return $next_win_time;
	}
	
	
	/**
	 * cache中下次中奖时间的key
	 */
	public function getCacheKeyOfNextWinTime($letters_id){
		return date('Y_m_d',$this->thisTime).'_letters_'.$letters_id.'_next_time';
	}
	
	
}