<?php

namespace app\common\model\lottery;

use think\Model;

/**
 * 抽奖记录模型
 */
class LotteryDrawRecord extends Model
{
    // 表名
    protected $name = 'shop_lottery_draw_record';
    
    // 开启自动写入时间戳字段
    protected $autoWriteTimestamp = 'int';
    // 定义时间戳字段名
    protected $createTime = 'createtime';
    protected $updateTime = false;
    protected $deleteTime = false;

    // 追加属性
    protected $append = [
        'trigger_type_text',
        'win_info_data'
    ];

    // 触发类型常量
    const TRIGGER_GOODS = 1;        // 购买商品
    const TRIGGER_ORDER = 2;        // 订单消费
    const TRIGGER_RECHARGE = 3;     // 充值
    const TRIGGER_ACCUMULATE = 4;   // 累计消费

    /**
     * 关联活动
     */
    public function activity()
    {
        return $this->belongsTo('LotteryActivity', 'activity_id');
    }

    /**
     * 关联用户
     */
    public function user()
    {
        return $this->belongsTo('app\common\model\User', 'user_id');
    }

    /**
     * 关联奖品
     */
    public function prize()
    {
        return $this->belongsTo('LotteryPrize', 'prize_id');
    }

    /**
     * 关联中奖记录
     */
    public function winRecord()
    {
        return $this->hasOne('LotteryWinRecord', 'draw_record_id');
    }

    /**
     * 关联订单
     */
    public function order()
    {
        return $this->belongsTo('app\common\model\Order', 'trigger_order_id');
    }

    /**
     * 获取触发类型文本
     */
    public function getTriggerTypeTextAttr($value, $data)
    {
        $types = [
            self::TRIGGER_GOODS => '购买商品',
            self::TRIGGER_ORDER => '订单消费',
            self::TRIGGER_RECHARGE => '充值',
            self::TRIGGER_ACCUMULATE => '累计消费'
        ];
        return isset($types[$data['trigger_type']]) ? $types[$data['trigger_type']] : '未知';
    }

    /**
     * 获取中奖信息数据
     */
    public function getWinInfoDataAttr($value, $data)
    {
        return !empty($data['win_info']) ? json_decode($data['win_info'], true) : [];
    }

    /**
     * 设置中奖信息
     */
    public function setWinInfoAttr($value)
    {
        return is_array($value) ? json_encode($value) : $value;
    }

    /**
     * 创建抽奖记录
     */
    public static function createRecord($activityId, $userId, $prizeId, $isWin, $triggerType, $triggerOrderId = null, $triggerAmount = null, $winInfo = [])
    {
        $data = [
            'activity_id' => $activityId,
            'user_id' => $userId,
            'prize_id' => $prizeId,
            'is_win' => $isWin ? 1 : 0,
            'trigger_type' => $triggerType,
            'trigger_order_id' => $triggerOrderId,
            'trigger_amount' => $triggerAmount,
            'win_info' => $winInfo ? json_encode($winInfo) : '',
            'draw_ip' => request()->ip(),
            'draw_time' => time(),
            'device_info' => request()->header('user-agent', '')
        ];
        
        return static::create($data);
    }

    /**
     * 获取用户抽奖次数
     */
    public static function getUserDrawCount($activityId, $userId, $timeRange = null)
    {
        $query = static::where('activity_id', $activityId)
                       ->where('user_id', $userId);
        
        if ($timeRange) {
            if (isset($timeRange['start'])) {
                $query->where('draw_time', '>=', $timeRange['start']);
            }
            if (isset($timeRange['end'])) {
                $query->where('draw_time', '<=', $timeRange['end']);
            }
        }
        
        return $query->count();
    }

    /**
     * 获取用户中奖次数
     */
    public static function getUserWinCount($activityId, $userId, $timeRange = null)
    {
        $query = static::where('activity_id', $activityId)
                       ->where('user_id', $userId)
                       ->where('is_win', 1);
        
        if ($timeRange) {
            if (isset($timeRange['start'])) {
                $query->where('draw_time', '>=', $timeRange['start']);
            }
            if (isset($timeRange['end'])) {
                $query->where('draw_time', '<=', $timeRange['end']);
            }
        }
        
        return $query->count();
    }

    /**
     * 获取活动抽奖统计
     */
    public static function getActivityStats($activityId, $timeRange = null)
    {
        $query = static::where('activity_id', $activityId);
        
        if ($timeRange) {
            if (isset($timeRange['start'])) {
                $query->where('draw_time', '>=', $timeRange['start']);
            }
            if (isset($timeRange['end'])) {
                $query->where('draw_time', '<=', $timeRange['end']);
            }
        }
        
        return [
            'total_draw' => $query->count(),
            'total_win' => $query->where('is_win', 1)->count(),
            'total_people' => $query->distinct('user_id')->count()
        ];
    }
}