<?php

namespace app\common\model\lottery;

use think\Model;

/**
 * 中奖记录模型
 */
class LotteryWinRecord extends Model
{
    // 表名
    protected $name = 'shop_lottery_win_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 = 'updatetime';
    protected $deleteTime = false;

    // 追加属性
    protected $append = [
        'deliver_status_text',
        'prize_value_data',
        'deliver_info_data'
    ];

    // 发放状态常量
    const DELIVER_STATUS_PENDING = 0;   // 待发放
    const DELIVER_STATUS_SUCCESS = 1;   // 已发放
    const DELIVER_STATUS_FAILED = 2;    // 发放失败
    const DELIVER_STATUS_CANCELLED = 3; // 已取消

    /**
     * 关联抽奖记录
     */
    public function drawRecord()
    {
        return $this->belongsTo('LotteryDrawRecord', 'draw_record_id');
    }

    /**
     * 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');
    }

    /**
     * 获取发放状态文本
     */
    public function getDeliverStatusTextAttr($value, $data)
    {
        $status = [
            self::DELIVER_STATUS_PENDING => '待发放',
            self::DELIVER_STATUS_SUCCESS => '已发放',
            self::DELIVER_STATUS_FAILED => '发放失败',
            self::DELIVER_STATUS_CANCELLED => '已取消'
        ];
        return isset($status[$data['deliver_status']]) ? $status[$data['deliver_status']] : '未知';
    }

    /**
     * 获取奖品信息数据
     */
    public function getPrizeValueDataAttr($value, $data)
    {
        return !empty($data['prize_value']) ? json_decode($data['prize_value'], true) : [];
    }

    /**
     * 设置奖品信息
     */
    public function setPrizeValueAttr($value)
    {
        return is_array($value) ? json_encode($value) : $value;
    }

    /**
     * 获取发放信息数据
     */
    public function getDeliverInfoDataAttr($value, $data)
    {
        return !empty($data['deliver_info']) ? json_decode($data['deliver_info'], true) : [];
    }

    /**
     * 设置发放信息
     */
    public function setDeliverInfoAttr($value)
    {
        return is_array($value) ? json_encode($value) : $value;
    }

    /**
     * 创建中奖记录
     */
    public static function createWinRecord($drawRecordId, $activityId, $userId, $prizeId, $prizeName, $prizeType, $prizeValue = [])
    {
        $data = [
            'draw_record_id' => $drawRecordId,
            'activity_id' => $activityId,
            'user_id' => $userId,
            'prize_id' => $prizeId,
            'prize_name' => $prizeName,
            'prize_type' => $prizeType,
            'prize_value' => is_array($prizeValue) ? json_encode($prizeValue) : $prizeValue,
            'deliver_status' => self::DELIVER_STATUS_PENDING
        ];
        
        return static::create($data);
    }

    /**
     * 标记为发放成功
     */
    public function markAsDelivered($deliverInfo = [])
    {
        $this->deliver_status = self::DELIVER_STATUS_SUCCESS;
        $this->deliver_time = time();
        if ($deliverInfo) {
            $this->deliver_info = json_encode($deliverInfo);
        }
        return $this->save();
    }

    /**
     * 标记为发放失败
     */
    public function markAsFailed($reason = '')
    {
        $this->deliver_status = self::DELIVER_STATUS_FAILED;
        $this->fail_reason = $reason;
        return $this->save();
    }

    /**
     * 设置收货地址
     */
    public function setDeliveryAddress($name, $mobile, $address)
    {
        $this->receiver_name = $name;
        $this->receiver_mobile = $mobile;
        $this->receiver_address = $address;
        return $this->save();
    }

    /**
     * 设置快递信息
     */
    public function setExpressInfo($company, $number)
    {
        $this->express_company = $company;
        $this->express_number = $number;
        return $this->save();
    }

    /**
     * 设置兑换码
     */
    public function setExchangeCode($code)
    {
        $this->exchange_code = $code;
        return $this->save();
    }

    /**
     * 标记兑换码已使用
     */
    public function markCodeUsed()
    {
        $this->code_used_time = time();
        return $this->save();
    }

    /**
     * 获取待发放的记录
     */
    public static function getPendingRecords($limit = 100)
    {
        return static::where('deliver_status', self::DELIVER_STATUS_PENDING)
                     ->order('createtime', 'asc')
                     ->limit($limit)
                     ->select();
    }

    /**
     * 获取用户中奖记录
     */
    public static function getUserWinRecords($userId, $page = 1, $limit = 20)
    {
        return static::where('user_id', $userId)
                     ->with(['activity', 'prize'])
                     ->order('createtime', 'desc')
                     ->page($page, $limit)
                     ->select();
    }

    /**
     * 获取活动中奖统计
     */
    public static function getActivityWinStats($activityId)
    {
        return [
            'total_win' => static::where('activity_id', $activityId)->count(),
            'delivered' => static::where('activity_id', $activityId)
                                 ->where('deliver_status', self::DELIVER_STATUS_SUCCESS)
                                 ->count(),
            'pending' => static::where('activity_id', $activityId)
                               ->where('deliver_status', self::DELIVER_STATUS_PENDING)
                               ->count(),
            'failed' => static::where('activity_id', $activityId)
                              ->where('deliver_status', self::DELIVER_STATUS_FAILED)
                              ->count()
        ];
    }
}